Page 2 6 F 2 S 0 8 4 2 Safety Precautions Before using this product, please read this chapter carefully. This chapter describes the safety precautions recommended when using the GRD150. Before installing and using the equipment, this chapter must be thoroughly read and understood. Explanation of symbols used Signal words such as DANGER, WARNING, and two kinds of CAUTION, will be followed by important safety information that must be carefully reviewed.
Page 3 6 F 2 S 0 8 4 2 DANGER • Current transformer circuit Never allow the current transformer (CT) secondary circuit connected to this equipment to be opened while the primary system is live. Opening the CT circuit will produce a dangerously high voltage.
Page 4 6 F 2 S 0 8 4 2 • Modification Do not modify this equipment, as this may cause the equipment to malfunction. • Disposal When disposing of this equipment, do so in a safe manner according to local regulations. 环保使用期限标识是根据《电子信息产品污染控制管理办法》以及《电子信息产品污染控制标识要求》...
Page 5 6 F 2 S 0 8 4 2 Contents Safety Precautions Introduction Application Notes 2.1 Overcurrent and Undercurrent Protection 2.1.1 Non-directional Overcurrent Protection 2.1.1.1 Inverse Time Overcurrent Protection 2.1.1.2 Definite Time Overcurrent Protection 2.1.1.3 Instantaneous Overcurrent Protection 2.1.1.4 Staged Definite Time Overcurrent Protection 2.1.1.5 Scheme Logic 2.1.1.6 Setting 2.1.1.7 Sensitive Earth Fault Protection...
Page 6 6 F 2 S 0 8 4 2 2.2.3 Zero Phase Sequence Overvoltage Protection 2.2.4 Negative Phase Sequence Overvoltage Protection 2.3 Frequency Protection 2.4 Trip Signal Output 2.5 Autoreclose 2.5.1 Autoreclosing Scheme 2.5.2 Scheme Logic 2.5.3 Setting 2.5.4 Characteristics of Measuring Elements 2.6 Control Function 2.6.1 MIMIC Configuration 2.6.2 Control...
Page 7 6 F 2 S 0 8 4 2 4.1.1 Front Panel 4.1.2 Communication Ports 4.2 Operation of the User Interface 4.2.1 LCD and LED Displays 4.2.2 Relay Menu 4.2.3 MIMIC Menu 4.2.3.1 Displaying MIMIC menu 4.2.3.2 Changing the MIMIC control mode 4.2.4 Displaying Records 4.2.4.1 Displaying Fault Records 4.2.4.2 Displaying Alarm Records...
Page 8 6 F 2 S 0 8 4 2 5.5 External Connections Commissioning and Maintenance 6.1 Outline of Commissioning Tests 6.2 Cautions 6.2.1 Safety Precautions 6.2.2 Cautions on Tests 6.3 Preparations 6.4 Hardware Tests 6.4.1 User Interfaces 6.4.2 Binary Input Circuit 6.4.3 Binary Output Circuit 6.4.4 AC Input Circuits 6.5 Function Test...
Page 9 6 F 2 S 0 8 4 2 Appendix A Programmable Reset Characteristics and Implementation of Thermal Model to IEC60255-8 Appendix B Directional Earth Fault Protection and Power System Earthing Appendix C Signal List Appendix D LCD Message for Fault Record Appendix E Details of Relay Menu and LCD &...
Page 10 • Open and close commands for switching devices • Synchronism check function (depending on the relay models) • MIMIC configuration picture The GRD150 series provides the following monitoring and metering functions. • Circuit breaker condition monitoring • Trip circuit supervision •...
Page 11 • Model 403; 32 programmable binary inputs / 24 programmable binary outputs • Model 404; 43 programmable binary inputs / 32 programmable binary outputs Table 1.1.1 shows the members of the GRD150 series and identifies the functions to be provided by each member.
Page 12 6 F 2 S 0 8 4 2 Table 1.1.1 Series Members and Functions Model Number GRD150- 100 series 200 series 300 series 400 series Non-directional overcurrent OC (IDMT, DT, INST) Non-directional earth fault EF (IDMT, DT, INST) Non-directional sensitive earth fault SEF (IDMT, DT, INST) Directional overcurrent DOC (IDMT, DT, INST) Directional earth fault DEF (IDMT, DT, INST) Directional sensitive earth fault DSEF (IDMT, DT, INST)
Page 13 6 F 2 S 0 8 4 2 2. Application Notes 2.1 Overcurrent and Undercurrent Protection 2.1.1 Non-directional Overcurrent Protection GRD150 provides distribution network protection with four-stage phase fault and earth fault overcurrent elements OC1 to OC4, EF1 to EF4, sensitive earth fault elements SEF1 to SEF4, and two-stage negative sequence overcurrent elements NOC1 and NOC2 which can be enabled or disabled by scheme switch setting.
Page 14 6 F 2 S 0 8 4 2 Operate time Figure 2.1.2 Time-distance Characteristics of Inverse Time Protection The inverse time overcurrent protection elements have the IDMT characteristics defined by equation (1): ⎧ ⎫ ⎡ ⎤ ⎪ ⎪ ⎢ ⎥ ×...
Page 15 6 F 2 S 0 8 4 2 and b. The following table shows the setting ranges of the curve defining constants. Curve defining constants Range Step Remarks 0.000 – 30.000 0.001 Operating characteristic 0.00 – 5.00 0.01 ([M∗∗∗]=CON setting) 0.000 –...
Page 16 6 F 2 S 0 8 4 2 Definite time reset The definite time resetting characteristic is applied to the IEC/IEEE/US operating characteristics. If definite time resetting is selected, and the delay period is set to instantaneous, then no intentional delay is added. As soon as the energising current falls below the reset threshold, the element returns to its reset condition.
Page 17 6 F 2 S 0 8 4 2 IEEE Reset Curves (Time Multiplier = 1) 1000.00 100.00 10.00 1.00 Current (Multiple of Setting) Figure 2.1.4 Dependent Time Reset Characteristics 2.1.1.2 Definite Time Overcurrent Protection In a system in which the fault current does not vary a great deal in relation to the position of the fault, that is, the impedance between the relay and the power source is large, the advantages of the IDMT characteristics are not fully utilised.
Page 18 6 F 2 S 0 8 4 2 2.1.1.3 Instantaneous Overcurrent Protection In conjunction with inverse time overcurrent protection, definite time overcurrent elements provide instantaneous overcurrent protection. OC1 to OC4 and EF1 to EF4 are phase fault and earth fault protection elements, respectively. Each element is programmable for instantaneous or definite time delayed operation.
Page 19 6 F 2 S 0 8 4 2 Fuse GRD150 Figure 2.1.7 Feeder Protection Coordinated with Fuses Configuring the inverse time element OC1 (and EF1) and time graded elements OC2 and OC3 (or EF2 and EF3) as shown in Figure 2.1.8, the characteristic of overcurrent protection can be improved to coordinate with the fuse characteristic.
Page 20 6 F 2 S 0 8 4 2 The OC1 and OC2 protections can be disabled by the scheme switches [OC1EN] and [OC2EN] or PLC logic signals OC1 BLOCK and OC2 BLOCK. Figure 2.1.11 and Figure 2.1.12 show the scheme logic of the definite time phase overcurrent protection OC3 and OC4.
Page 21 6 F 2 S 0 8 4 2 24, 1716 & OC2-A TRIP ≥1 25, 1717 OC2I 26, 1718 OC2-B TRIP & ≥1 OC2-C TRIP [MOC2] ≥1 & "IEC" "IEEE" ≥ 1 OC2 TRIP "US" "CON" "DT" TOC2 8, 1700 &...
Page 22 6 F 2 S 0 8 4 2 TOC4 16, 1708 & OC4-A ALARM 17, 1709 OC4-B ALARM 18, 1710 & & OC4-C ALARM OP. BLOCK [OC4-2F] 0.00 - 300.00s & "BLK" ≥ 1 OC4 ALARM [OC4EN] "ON" 1539 OC4 BLOCK Figure 2.1.12 OC4 Definite Time Phase Overcurrent Protection Earth fault overcurrent protection...
Page 23 6 F 2 S 0 8 4 2 116, 1808 EF1-I & ≥ 1 EF1 TRIP [MEF1] "IEC" "IEEE" "US" "CON" "DT" TEF1 100, 1792 EF1-D & OP. BLOCK 0.00 - 300.00s [EF1-2F] & "BLK" 80, 1772 EFHS [EF1EN] "ON" EF1 BLOCK 1544 Figure 2.1.13...
Page 24 6 F 2 S 0 8 4 2 TEF3 102, 1794 & EF3 TRIP OP. BLOCK 0.00 - 300.00s [EF3-2F] & "BLK" [EF3EN] "ON" EF3 BLOCK 1546 Figure 2.1.15 EF3 Definite Time Earth Fault Protection TEF4 103, 1795 & EF3 TRIP OP.
Page 25 6 F 2 S 0 8 4 2 Element Range Step Default Remarks TOC2RP 0.010 – 1.500 0.001 1.000 OC2-I dependent time delayed reset time (RTMS) multiplier. Required if [OC2R] = DEP. 0.5 – 250.0 A 0.1 A 50.0 A OC3D threshold setting (0.10 –...
Page 26 6 F 2 S 0 8 4 2 Element Range Step Default Remarks MOC2C-IEEE MI / VI / EI Required if [MOC2] = IEEE. MOC2C-US CO2 / CO8 Required if [MOC2] = US. [OC2R] DEF / DEP (*2) OC2I reset characteristic. Required if [MOC2] = IEEE, US or CON.
Page 27 6 F 2 S 0 8 4 2 of the minimum fault current. For grading of the current settings, the terminal furthest from the power source is set to the lowest value and the terminals closer to the power source are set to a higher value. The minimum setting of the phase overcurrent element is restricted so as not to operate for the maximum load current, and that of the residual overcurrent element is restricted so as to not operate on false zero-sequence current caused by an unbalance in the load current, errors in the...
Page 28 6 F 2 S 0 8 4 2 operate for large motor starting currents or transformer inrush currents. Time setting When setting the delayed pick-up timers, the time grading margin Tc is obtained in the same way as explained in “Settings for Inverse Time Overcurrent Protection”. 2.1.1.7 Sensitive Earth Fault Protection The sensitive earth fault (SEF) protection is applied for distribution systems earthed through high impedance, where very low levels of fault current are expected in earth faults.
Page 29 6 F 2 S 0 8 4 2 Power Transformer Varistor GRD150 Stabilising SEF input Resistor Figure 2.1.18 High Impedance REF In applications of SEF protection, it must be ensured that any erroneous zero-phase current is sufficiently low compared to the fault current, so that a highly sensitive setting is available. The erroneous current may be caused with load current due to unbalanced configuration of the distribution lines, or mutual coupling from adjacent lines.
Page 30 6 F 2 S 0 8 4 2 Figure 2.1.21 and Figure 2.1.22 show the scheme logic of the definite time sensitive earth fault protection SEF3 and SEF4. SEF3 and SEF4 give trip and alarm signals SEF3 TRIP and SEF4 ALARM through delayed pick-up timers TSE3 and TSE4.
Page 31 6 F 2 S 0 8 4 2 TSE3 106, 1798 SEF3 & SEF3 TRIP OP. BLOCK 0.00 - 300.00s [SEF3-2F] "BLK" & [SE3EN] "ON" SEF3 BLOCK 1554 2.1.21 SEF3 Sensitive Definite Time Earth Fault Protection Scheme Logic TSE4 107, 1799 SEF4 &...
Page 32 6 F 2 S 0 8 4 2 Element Range Step Default Remarks (RTMS) multiplier. Required if [SE2R] = DEP. 0.025 – 0.125 A 0.001 A 0.050 A SEF3 threshold setting (0.005 – 0.025 A)(*1) (0.001 A) (0.010 A) TSE3 0.00 –...
Page 33 6 F 2 S 0 8 4 2 operation. The excitation impedance of the saturated CT is considered to approximate a short-circuit. Saturated CT Healthy CT Transformer Circuit ≈0 Varistor Stabilising GRD150 Resistor Figure 2.1.23 Maximum Voltage under Through Fault Condition The voltage across the relay circuit under these conditions is given by the equation: ×(R where:...
Page 34 6 F 2 S 0 8 4 2 = CT knee point voltage = maximum prospective secondary current for an internal fault When a Metrosil is used for the varistor, it should be selected with the following characteristics: β V = CI where: V = instantaneous voltage I = instantaneous current...
Page 35 6 F 2 S 0 8 4 2 overcurrent elements NOC1 and NOC2 with independent thresholds output trip signals NOC1 TRIP and NOC2 ALARM through delayed pick-up timers TNC1 and TNC2. ICD is the inrush current detector ICD, which detects second harmonic inrush current during transformer energisation, and can block the NOC1D element by the scheme switches [NC1-2F].
Page 36 6 F 2 S 0 8 4 2 Setting The table below shows the setting elements necessary for the NOC protection and their setting ranges. Element Range Step Default Remarks 0.5 – 10.0 A 0.1 A 2.0 A NOC1 threshold setting. (0.10 –...
Page 37 6 F 2 S 0 8 4 2 2.1.1.9 Application of Protection Inhibits All GRD150 protection elements can be blocked by a binary input signal. This feature is useful in a number of applications. Blocked Overcurrent Protection Conventional time-graded definite time overcurrent protection can lead to excessive fault clearance times being experienced for faults closest to the source.
Page 38 6 F 2 S 0 8 4 2 Blocked Busbar Protection Non-directional overcurrent protection can be applied to provide a busbar zone scheme for a simple radial system where a substation has only one source, as illustrated in Figure 2.1.27. For a fault on an outgoing feeder F1, the feeder protection sends a hardwired blocking signal to inhibit operation of the incomer, the signal OCHS, EFHS and SEFHS being generated by the instantaneous phase fault, and earth fault pick-up outputs of OC1, EF1 and SEF1 allocated to any...
Page 39 6 F 2 S 0 8 4 2 2.1.2 Directional Overcurrent Protection In a system including parallel feeder circuits, ring main circuits or sources at both line terminals, the fault current at the relay location can flow in any direction. In such a case, directional control elements should be added to overcurrent elements.
Page 40 6 F 2 S 0 8 4 2 protections are directional relays. It can be seen that a fault at F is cleared by tripping at A in 1.0s and at B in 0.4s. Alternatively, since GRD150 provides multiple, independent bi-directional overcurrent stages, a scheme could be implemented in which a single relay can perform the necessary protection functions in both directions at each load connection point.
Page 41 6 F 2 S 0 8 4 2 2.1.2.2 Directional Characteristics Figure 2.1.31 illustrates the directional characteristic, with the forward operate zone shaded. The reverse zone is simply a mirror image of the forward zone. The forward operate zone or reverse operate zone is selectable by the scheme switch [DOC-DIR], [DEF-DIR], [DSE-DIR] and [DNC-DIR].
Page 42 6 F 2 S 0 8 4 2 −V −V Vbc∠90° Figure 2.1.33 Relationship between Current Input and Polarising signal Table 2.1.2 Directional polarising signals Directional element Current Input Polarising Signal ∠90° DOC-A ∠90° DOC-B ∠90° DOC-C DSEF DNOC In the event of a close up three phase fault, all three polarising signals will collapse below the minimum threshold.
Page 43 6 F 2 S 0 8 4 2 2.1.2.2 Scheme Logic Directional phase overcurrent protection Figure 2.1.35 and Figure 2.1.36 show the scheme logic of the directional phase overcurrent protection DOC1 and DOC2 with selective definite time or inverse time characteristic. The definite time protection is selected by setting [MDOC1] and [MDOC2] to “DT”.
Page 44 6 F 2 S 0 8 4 2 36, 1728 68, 1760 DOC1-A TRIP ≥1 ≥1 & & 37, 1729 69, 1761 DOC1F DOC1I DOC1-B TRIP ≥1 ≥1 & & 38, 1730 70, 1762 DOC1-C TRIP ≥1 ≥1 & & DOC1 TRIP [MDOC1] 52, 1744...
Page 45 6 F 2 S 0 8 4 2 TDOC3 44, 1736 DOC3-A TRIP ≥1 & & & 45, 1737 DOC3F DOC3-B TRIP ≥1 & & & 46, 1738 DOC3-C TRIP ≥1 & & & 0.00 - 300.00s DOC3 TRIP 60, 1752 &...
Page 46 6 F 2 S 0 8 4 2 overcurrent elements DEF1I and DEF2I are enabled for DEF1 and DEF2 protection respectively, and trip signal DEF1 TRIP and DEF2 TRIP are given. The forward operate zone (DEF1F and DEF2F) or reverse operate zone (DEF1R and DEF2R) is selectable by the scheme switches [DEF1-DIR] and [DEF2-DIR].
Page 47 6 F 2 S 0 8 4 2 TDEF3 134, 1826 DEF3F DEF3 TRIP ≥1 & & & 0.00 - 300.00s 150, 1842 DEF3R & "FWD" [DEF3-DIR] "REV" [DEF3-2F] & "BLK" [DEF3EN] "ON" 1550 DEF3 BLOCK Figure 2.1.41 Definite Time Directional Earth Fault Protection DEF3 TDEF4 135, 1827 DEF4F...
Page 48 6 F 2 S 0 8 4 2 Element Range Step Default Remarks TDOC2D 0.00 – 300.00 s 0.01 s 1.00 s DOC2 definite time setting. Required if [MDOC2] = DT. TDOC2RD 0.0 – 300.0 s 0.1 s 0.0 s DOC2 definite time delayed reset.
Page 49 6 F 2 S 0 8 4 2 Element Range Step Default Remarks [DOC1R] DEF / DEP (*2) DOC1I reset characteristic. Required if [MDOC1] = IEEE, US or CON. [DOC1-DIR] FWD / REV DOC1 directional characteristic [DOC1-2F] NA / BLK Blocked by ICD [DOC2EN] Off / On...
Page 50 6 F 2 S 0 8 4 2 2.1.2.4 Directional Sensitive Earth Fault Protection GRD150-200 and 400 series provide directional earth fault protection with more sensitive settings for use in applications where the fault current magnitude may be very low. A 4-stage directional sensitive earth fault function is provided, with the first and second stage programmable for inverse time or definite time operation.
Page 51 6 F 2 S 0 8 4 2 The DSEF3 and DSEF4 protection can be disabled by the scheme switches [DSE3EN] and [DSE4EN] or PLC logic signals DSEF3 BLOCK and DSEF4 BLOCK. Residual element RP also can be disabled by the scheme switch [RPEN]. The DSEF3 and DSEF4 can also be blocked by the ICD.
Page 52 6 F 2 S 0 8 4 2 TDSE3 138, 1830 DSEF3F DSEF3 TRIP ≥1 & & & 0.00 - 300.00s 154, 1846 DSEF3R & "FWD" [DSE3-DIR] "REV" [DSE3-2F] & "BLK" RPF ON RPR ON [DSE3EN] "ON" DSEF3 BLOCK 1558 2.1.45 Definite Time Directional Sensitive Earth Fault Protection DSEF3 TDSE4 139, 1831...
Page 53 6 F 2 S 0 8 4 2 Element Range Step Default Remarks TDSE1S2 0.00 – 300.00 s 0.01 s 1.00 s DSEF1 stage 2 definite time setting DSE2 0.025 – 0.125 A 0.001 A 0.050 A DSEF2 threshold setting (0.005 –...
Page 54 6 F 2 S 0 8 4 2 2.1.2.5 Directional Negative Sequence Overcurrent Protection GRD150 provides the directional negative sequence overcurrent protection with inverse time and definite time characteristics. Two independent elements DNOC1 and DNOC2 are provided for tripping and alarming. The DNOC1 has selective inverse time and definite time characteristics.
Page 55 6 F 2 S 0 8 4 2 TDNC2 141, 1833 DNOC2F DNOC2 ALARM ≥1 & & & 0.00 - 300.00s 157, 1849 DNOC2R & "FWD" [DNC2-DIR] "REV" [DNC2-2F] "BLK" & [DNC2EN] "ON" 1565 DNOC2 BLOCK Figure 2.1.48 Negative Sequence Overcurrent Protection DNOC2 Scheme Logic Settings The table below shows the setting elements necessary for the DNOC protection and their setting ranges.
Page 56 6 F 2 S 0 8 4 2 values are in the case of a 5 A rating. (*2) DEF: Instant or Definite time, DEP: Inverse time Sensitive setting of DNOC1 and DNOC2 thresholds is restricted by the negative phase sequence current normally present on the system.
Page 57 6 F 2 S 0 8 4 2 For a fault in the busbar zone, the GRD150 is programmed to trip the bus section and bus coupler circuit breakers via its instantaneous elements OC2 and EF2 set with short definite time delay settings (minimum 50ms).
Page 58 6 F 2 S 0 8 4 2 2.1.3 Phase Undercurrent Protection The phase undercurrent protection provides is used to detect a decrease in current caused by a loss of load, typically motor load. Two stage undercurrent protection UC1 and UC2 are available. The undercurrent element operates for current falling through the threshold level.
Page 59 6 F 2 S 0 8 4 2 TUC1 164, 1856 UC1-A TRIP & & & 165, 1857 UC1-B TRIP & & & 166, 1858 UC1-C TRIP & & & 0.00 - 300.00s ≥ 1 [UC1EN] UC1 TRIP "ON" TUC2 168, 1860 UC2-A ALARM &...
Page 60 6 F 2 S 0 8 4 2 2.1.4 Thermal Overload Protection The temperature of electrical plant rises according to an I t function and the thermal overload protection in GRD150 provides a good protection against damage caused by sustained overloading.
Page 61 6 F 2 S 0 8 4 2 system that has previously been loaded to 90% of its capacity. Thermal Curves (Cold Curve - no Thermal Curves (Hot Curve - 90% prior load) prior load) 1000 1000 τ τ 0.01 0.01 0.001 Overload Current (Multiple of I...
Page 62 6 F 2 S 0 8 4 2 Setting The table below shows the setting elements necessary for the thermal overload protection and their setting ranges. Element Range Step Default Remarks 0.1 – 10.0 A 0.1 A 5.0 A Thermal overload setting. (0.02 –...
Page 63 6 F 2 S 0 8 4 2 2.1.5 Broken Conductor Protection Series faults or open circuit faults which do not accompany any earth faults or phase faults are caused by broken conductors, breaker contact failure, operation of fuses, or false operation of single-phase switchgear.
Page 64 6 F 2 S 0 8 4 2 Positive phase sequence current I , negative phase sequence current I and zero phase sequence current I at fault location in an single-phase series fault are given by: − Z − E −...
Page 65 6 F 2 S 0 8 4 2 Scheme Logic Figure 2.1.56 shows the scheme logic of the broken conductor protection. BCD element outputs trip signals BCD TRIP through a delayed pick-up timer TBCD. The BCD protection can be disabled by the scheme switch [BCDEN] or PLC logic signal BCD BLOCK.
Page 66 6 F 2 S 0 8 4 2 2.1.6 Breaker Failure Protection When fault clearance fails due to a breaker failure, the breaker failure protection (BFP) clears the fault by backtripping adjacent circuit breakers. If the current continues to flow even after a trip command is output, the BFP judges it as a breaker failure.
Page 67 6 F 2 S 0 8 4 2 If the original breaker fails, retrip has no effect and the CBF continues operating and the TBTC finally picks up. A trip command CBF TRIP is given to the adjacent breakers and the BFP is completed.
Page 68 6 F 2 S 0 8 4 2 Setting The setting elements necessary for the breaker failure protection and their setting ranges are as follows: Element Range Step Default Remarks 0.5 – 10.0 A 0.1 A 2.5 A Overcurrent setting (0.10 - 2.00 A)(*) (0.01 A) (0.50 A)
Page 69 6 F 2 S 0 8 4 2 2.1.7 Countermeasures for Magnetising Inrush GRD150 provides the following two schemes to prevent incorrect operation from a magnetising inrush current during transformer energisation. - Protection block by inrush current detector - Cold load protection 2.1.7.1 Inrush Current Detector Inrush current detector ICD detects second harmonic inrush current during transformer energisation and blocks the following definite time overcurrent protections.
Page 70 6 F 2 S 0 8 4 2 Setting The setting elements necessary for the ICD and their setting ranges are as follows: Element Range Step Default Remarks ICD-2f 10 – 50% Second harmonic detection ICDOC 0.5 – 25.0 A 0.1 A 0.5 A ICD threshold setting...
Page 71 6 F 2 S 0 8 4 2 STATE 0 CB status: Closed Settings Group: Normal Monitor CB status CB opens CB closes within T CLE time STATE 1 CB status: Open Settings Group: Normal Run T CLE timer Monitor CB status <ICLDO for T CLDO time T CLR timer...
Page 72 6 F 2 S 0 8 4 2 Setting The setting elements necessary for the cold load protection and their setting ranges are as follows: Element Range Step Default Remarks ICLDO 0.5 – 10.0 A 0.1 A 2.5 A Cold load drop-off threshold setting (0.10 - 2.00 A)(*) (0.01 A) (0.50 A)
Page 73 6 F 2 S 0 8 4 2 2.1.8 CT Requirements 2.1.8.1 Phase Fault and Earth Fault Protection Protection class current transformers are normally specified in the form shown below. The CT transforms primary current within the specified accuracy limit, for primary current up to the overcurrent factor, when connected to a secondary circuit of the given burden.
Page 74 6 F 2 S 0 8 4 2 care should be taken when determining R2, as this is dependent on the method used to connect the CTs (E.g. residual connection, core balanced CT connection, etc). 2.1.8.3 Sensitive Earth Fault Protection A core balance CT should be applied, with a minimum knee point calculated as described above.
Page 75 6 F 2 S 0 8 4 2 2.2 Overvoltage and Undervoltage Protection 2.2.1 Phase Overvoltage Protection GRD150 provides two independent phase overvoltage elements with programmable dropoff/pickup(DO/PU) ratio. OV1 is programmable for inverse time (IDMT) or definite time (DT) operation. OV2 has definite time characteristic only. Note: OV1 element that has inverse time or definite time characteristics is discriminated with OV1-I or OV1-D respectively.
Page 76 6 F 2 S 0 8 4 2 reset threshold, the integral state (the point towards operation that it has travelled) of the timing function (IDMT) is held for that period. This does not apply following a trip operation, in which case resetting is always instantaneous. The OV1 has a programmable dropoff/pickup(DO/PU) ratio.
Page 77 6 F 2 S 0 8 4 2 TOV1 196, 1888 1(∗) & OV1-1 TRIP ≥1 197, 1889 OV1D 2(∗) 198, 1890 & OV1-2 TRIP 3(∗) ≥1 & OV1-3 TRIP ≥1 0.00 - 300.00s 212, 1904 1(∗) & 213, 1905 ≥...
Page 78 6 F 2 S 0 8 4 2 2.2.1.2 Definite Time Overvoltage Protection OV2 element is used for definite time overvoltage protection. This element has a programmable DO/PU ratio. Scheme Logic As shown in Figure 2.2.4, OV2 gives trip signal OV2 through delayed pick-up timer TOV2. The OV2 trip can be blocked by incorporated scheme switch [OV2EN] and PLC logic signal OV2 BLOCK.
Page 79 6 F 2 S 0 8 4 2 2.2.2 Phase Undervoltage Protection GRD150 provides two independent phase undervoltage elements. UV1 programmable for inverse time (IDMT) or definite time (DT) operation. UV2 has definite time characteristic only. Note: UV1 element that has inverse time or definite time characteristics is discriminated with UV1-I or UV1-D respectively.
Page 80 6 F 2 S 0 8 4 2 Undervoltage Inverse Time Curves 1000.000 100.000 TMS = 10 10.000 TMS = 5 TMS = 2 TMS = 1 1.000 Applied Voltage (x Vs) Figure 2.2.6 IDMT Characteristic Scheme Logic Figure 2.2.7 shows the scheme logic of the undervoltage protection with selective definite time or inverse time characteristic.
Page 81 6 F 2 S 0 8 4 2 204, 1896 TUV1 1(∗) & & UV1-1 TRIP ≥1 205, 1897 UV1D 2(∗) 206, 1898 & & UV1-2 TRIP 3(∗) ≥1 & & UV1-3 TRIP ≥1 220, 1912 0.00 - 300.00s 1(∗) &...
Page 82 6 F 2 S 0 8 4 2 2.2.2.2 Definite Time Undervoltage Protection UV2 element is used for definite time undervoltage protection. Scheme Logic As shown in Figure 2.2.8, UV2 gives trip signal UV2 through delayed pick-up timer TUV2. The UV2 trip can be blocked by incorporated scheme switch [UV2EN] and PLC logic signal UV2 BLOCK.
Page 83 6 F 2 S 0 8 4 2 2.2.3 Zero Phase Sequence Overvoltage Protection The zero phase sequence overvoltage protection is applied to earth fault detection on unearthed, resistance-earthed system or on ac generators. The zero phase sequence overvoltage (ZOV) element is available for the following models and their [APPL-VT] settings: Model 100 and 200 series...
Page 84 6 F 2 S 0 8 4 2 Two independent elements ZOV1 and ZOV2 are provided. The ZOV1 element is programmable for definite time delayed or inverse time delayed (IDMT) operation, and the ZOV2 element for definite time delayed operation only. The inverse time characteristic is defined by equation (3).
Page 85 6 F 2 S 0 8 4 2 Definite time reset A definite time reset characteristic is applied to the ZOV1 element when the inverse time delay is used. Its operation is identical to that for the phase overvoltage protection. Scheme Logic Figure 2.2.12 shows the scheme logic of the zero sequence overvoltage protection.
Page 86 6 F 2 S 0 8 4 2 2.2.4 Negative Phase Sequence Overvoltage Protection The negative phase sequence overvoltage protection is used to detect voltage unbalance conditions such as reverse-phase rotation, unbalanced voltage supplying etc. The NOV protection is applied to protect three-phase motors from the damage which may be caused by the voltage unbalance.
Page 87 6 F 2 S 0 8 4 2 Definite time reset A definite time reset characteristic is applied to the NOV1 element when the inverse time delay is used. Its operation is identical to that for the phase overvoltage protection. Scheme Logic Figure 2.2.14 shows the scheme logic of the negative sequence overvoltage protection.
Page 88 6 F 2 S 0 8 4 2 2.3 Frequency Protection For a six-stage frequency protection, GRD150 incorporates dedicated frequency measuring elements and scheme logic for each stage. Each stage is programmable for underfrequency, overfrequency or frequency rate-of-change protection. Underfrequency protection is provided to maintain the balance between the power generation capability and the loads.
Page 89 6 F 2 S 0 8 4 2 Δ f Δ t Figure 2.3.2 Frequency Rate-of-Change Element Scheme Logic Figure 2.3.3 shows the scheme logic of frequency protection in stage 1. The frequency element FRQ1 can output a trip command under the condition that the system voltage is higher than the setting of the undervoltage element FVBLK (FVBLK=1).
Page 90 6 F 2 S 0 8 4 2 TFRQ1 324, 2016 FRQ1 TRIP ≥1 & & & FRQ1 0.00 - 100.00s & TFRQ2 325, 2017 FRQ2 TRIP ≥1 & & & FRQ2 0.00 - 100.00s & TFRQ3 326, 2018 FRQ3 TRIP ≥1 &...
Page 91 6 F 2 S 0 8 4 2 DFRQ1 TRIP ≥1 & & DFRQ1 & & DFRQ2 TRIP ≥1 & & DFRQ2 & & DFRQ3 TRIP ≥1 & & DFRQ3 & & DFRQ4 TRIP ≥1 & & & DFRQ4 & DFRQ5 TRIP ≥1 &...
Page 92 6 F 2 S 0 8 4 2 Setting The setting elements necessary for the frequency protection and their setting ranges are shown in the table below. Element Range Step Default Remarks FRQ1 25.00 – 75.00 Hz 0.01 Hz 49.00 Hz FRQ1 frequency element setting TFRQ1 0.00 –...
Page 93 6 F 2 S 0 8 4 2 2.4 Trip Signal Output GRD150 provides various trip and alarm signal outputs such as three-phase and single-phase trip and alarm of each protection. Figures 2.4.1 to 2.4.3 show gathered trip and alarm signals of each protection.
Page 94 6 F 2 S 0 8 4 2 OC1-A TRIP ≥1 ≥1 OC2-A TRIP ≥1 GEN. TRIP-A OC3-A TRIP DOC1-A TRIP ≥1 DOC2-A TRIP DOC3-A TRIP UC1-A TRIP OC1-B TRIP ≥1 ≥1 OC2-B TRIP ≥1 GEN. TRIP-B OC3-B TRIP DOC1-B TRIP ≥1 DOC2-B TRIP DOC3-B TRIP...
Page 95 6 F 2 S 0 8 4 2 OC4 ALARM ≥1 DOC4 ALARM ≥1 EF4 ALARM GEN. ALARM DEF4 ALARM SEF4 ALARM ≥1 DSEF4 ALARM NOC2 ALARM DNOC2 ALARM UC2 ALARM ≥1 THM ALARM OV2 ALARM ≥1 UV2 ALARM ZOV2 ALARM NOV2 ALARM OC4-A ALARM ≥1...
Page 96 6 F 2 S 0 8 4 2 2.5 Autoreclose The GRD150 model 300 and 400 series provide two-stage and multi-shot (five shots) autoreclosing scheme and are applied for one-circuit breaker: • Two-stage autoreclosing scheme (ARC1, ARC2) • Single phase or three phase autoreclosing scheme for the first shot •...
Page 97 6 F 2 S 0 8 4 2 Configurable autoreclose: User can configure the autoreclose condition by using the PLC function. Two- to five-shot autoreclose Any of two- to five-shot reclosing can be selected. In any case, the first shot is selected from three types of autoreclose modes as described in the above first-shot autoreclose.
Page 98 6 F 2 S 0 8 4 2 for each phase of the breakers can also activate the autoreclose. These signals are also programmed by PLC function. Once this autoreclose is activated, it is maintained by a flip-flop circuit until one reclosing cycle is completed.
Page 99 6 F 2 S 0 8 4 2 [VCHK] " " " " LRDI " " DRLI " " DRDI " " TLRDI & OVRV VCHK LRDI & ≥1 VCHK 0.00 – 100.00S TDRLI UVRV & VCHK DRLI & 0.00 – 100.00S OVIV TDRDI &...
Page 100 6 F 2 S 0 8 4 2 When [VCHK] is set to "SYN, a three-phase autoreclose is performed with the synchronism check only. When [VCHK] is set to "OFF", three-phase autoreclose is performed without voltage and synchronism check. The voltage and synchronism check requires a single-phase voltage from the busbar and the line as a reference voltage.
Page 101 6 F 2 S 0 8 4 2 T1S2 ARC IN-PROG ARC-SHOT2 ≥1 & & 0.01-300.00s 1652 ARC1-S2 COND T1S2R ARC1 INIT ARC-SHOT2 (Trip command) ARC1-S2 TRR 0.01-310.00s T1S3 ARC-SHOT3 ≥1 & & 0.01-300.00s 1653 ARC1-S3 COND T1S3R ARC-SHOT3 ARC1-S3 TRR 0.01-310.00s T1S4 ARC-SHOT4...
Page 102 6 F 2 S 0 8 4 2 2.5.3 Setting The setting elements necessary for the autoreclose and their setting ranges are shown in the table below. Element Range Step Default Remarks TRDY 0.0 – 600.0 s 0.1 s 60.0 s Reclaim time T1S1 0.01 –...
Page 103 6 F 2 S 0 8 4 2 Element Range Step Default Remarks SYNDf 0.02 – 0.50 Hz 0.01 Hz 0.50 Hz Synchronism check TLRDI 0.00 – 100.00 s 0.01 s 0.05 s Voltage check time TDRLI 0.00 – 100.00 s 0.01 s 0.05 s Voltage check time...
Page 104 6 F 2 S 0 8 4 2 (*) Current values shown in the parenthesis are in the case of a 1 A rating. Other current values are in the case of a 5 A rating. To determine the dead time, it is essential to find an optimal value while taking factors, de-ionization time and power system stability, into consideration which normally contradict each other.
Page 105 6 F 2 S 0 8 4 2 For the element SYN, the voltage difference is checked by the following equations. SYNOV ≤ VR ≤ SYNUV SYNOV ≤ VI ≤ SYNUV where, VR = busbar (running) voltage VI = line (incoming) voltage SYNOV = lower voltage setting SYNUV = upper voltage setting The phase difference is checked by the following equations.
Page 106 6 F 2 S 0 8 4 2 Control Function GRD150 provides the following bay level control functions: - MIMIC configuration - Control of switchgears, circuit breakers, disconnectors (open/close command) - Monitoring of switchgears, circuit breakers, disconnectors - Display and monitoring of metering values - Synchronism check 2.6.1 MIMIC Configuration...
Page 107 6 F 2 S 0 8 4 2 Table 2.6.2 Setting range of Digital Meter Data ID Width Precision Unit Ia (A-phase current) 999999 Ib (B-phase current) 999999 Ic (C-phase current) 999999 Ie (Residual current) 999999 Ise (zero-sequence current for SEF) 9999.9 Va (A-phase voltage) 999.99...
Page 108 6 F 2 S 0 8 4 2 2.6.2 Control The GRD150 can indicate the status of circuit breakers and disconnectors via the MIMIC configuration picture on the graphical LCD display (HMI) and the status information from them can be transmitted to the remote control system. The GRD150 can also control switchgears such as circuit breakers or disconnectors opened and closed over the remote control system.
Page 109 6 F 2 S 0 8 4 2 and select enable signal which made in internal logic. CB_CL_CNTL is given by CB_SELECTED and close command from PLC/panel/remote system and close enable signal which made in internal logic. In addition, CB_CL_OUT is given for device control.
Page 110 6 F 2 S 0 8 4 2 When CBPM = Var selected, 1) OPEN control CBOPP setting Control output OPEN 52a (N/O) 52b (N/C) 2) CLOSE control CBCLP setting Control output CLOSE 52a (N/O) 52b (N/C) COS has pulse mode “Latch” or “Pulse”. In case of “Latch” the COS output is kept till other command.
Page 111 6 F 2 S 0 8 4 2 Local control Local control means the control operation from the relay front panel (MIMIC panel). In local control the device to control can be selected using cursor keys and press SELECT key to fix the object, then press key to output control signal.
Page 112 6 F 2 S 0 8 4 2 Table 2.6.4 Control logic by PLC Input or Output Information Signal assign Input signal to control Status of device N/O and N/C contact information introduced by BI(Binary function from PLC logic input) is assigned to a device status signal. Select &...
Page 113 6 F 2 S 0 8 4 2 2.6.2.6 Supervision of device control GRD150 check the device status of 2 status input (CB, DS, IND) or 3 status input (EDS) on MIMIC diagram. GRD150 make the signal (i.e. CB_PLT_FAIL, CB_UNDEF) after the device status is invalid more than setting time.
Page 114 6 F 2 S 0 8 4 2 Voltage Check Voltages are checked and closing of the circuit breaker is permitted only when the following conditions are fulfilled. - Voltage is higher than the set value Vov (live condition) on one end of the circuit breaker and lower than the set value Vuv (dead condition) on the other end.
Page 115 6 F 2 S 0 8 4 2 - Maximum of zero sequence voltage which is measured directly in the form of the system residual voltage (Ve: max) for model 100 and 300 series - Maximum of phase current (I a , I b , I c : max.) - Maximum of zero sequence current from residual circuit (I e : max) - Maximum of zero sequence current from core balance CT (Ise: max) for model 200 and 400 series - Maximum, minimum and average of frequency (f: max, min, av)
Page 116 6 F 2 S 0 8 4 2 APPL setting APPL-CT APPL-VT Quantity varh The GRD150 can monitor the upper or lower limit value of power system quantities and issue an alarm or record an event if the measured value is exceed the upper or lower limit value set. Two stage limits for the upper and lower limit value can be set respectively: - Upper: High warning limit, High alarm limit - Lower: Low warning limit, Low alarm limit...
Page 117 6 F 2 S 0 8 4 2 Element Range Step Default Remarks [VHWAMEN] Off / On Voltage V high warning enable [VLALMEN] Off / On Voltage V low alarm enable [VLWAMEN] Off / On Voltage V low warning enable [PHALMEN] Off / On Active power P high alarm enable...
Page 118 6 F 2 S 0 8 4 2 Element Range Step Default Remarks fLALM 25.0 – 75.0 Hz 25.0 Hz Frequency Q low alarm fLWAR 25.0 – 75.0 Hz 25.0 Hz Frequency Q low warning fHYST 0.00 – 0.10 Hz 0.00 Hz Frequency Q hysteresis setting IeHALM...
Page 119 6 F 2 S 0 8 4 2 N / O c o n t a c t N / C c o n t a c t C T S = C - O n C T S = C - O ff C T S = C - O n O ff C T S = C y c l e Configurable counter can work by using PLC function and setting count status.
Page 120 6 F 2 S 0 8 4 2 The maximum operation time can be cleared manually. Note: The error of measured operation time is within ±5ms. If a binary output for tripping is applied, the error will be larger. The setting ranges for counter and timer are as follows: Element Range Step...
Page 121 6 F 2 S 0 8 4 2 Element Range Step Default Remarks CBCT 0 - 29999 CB operation counts DS1CT – DS5CT 0 - 29999 DS1 – DS5 operation counts EDS1CLOSECT 0 - 29999 EDS1 close counts EDS1EARTHCT 0 - 29999 EDS1 earth counts EDS2CLOSECT 0 - 29999...
Page 122 6 F 2 S 0 8 4 2 2.7 PLC (Programmable Logic Controller) Function GRD150 is provided with PLC function allowing user-configurable sequence logics on binary signal. The sequence logics (e.g. trip, interlock and alarm) with timers, flip-flops, AND, OR, NOT logics, etc.
Page 123 6 F 2 S 0 8 4 2 Figure 2.7.2 Sample Screen of Producing Logic by PLC Tool GRD150 provides 8 user-configurable timers and 8 user-configurable switches with three-positions to be programmed by using the PLC function. Refer to Section 4.2.6.2 ‘Setting the PLC setting’.
Page 124 6 F 2 S 0 8 4 2 Enter select & operation control condition from PLC. Select & operation control condition from PLC is entered. Assign control outputs to BOs. Control output is assigned to BO. Produce interlock condition and assign it to signal. Interlock condition is produced and assigned.
Page 125 6 F 2 S 0 8 4 2 3. Technical Description 3.1 Hardware Description 3.1.1 Outline of Hardware Modules The outline of GRD150 is shown in Figure 3.1.1. The detail case outline and dimension of GRD150 is shown in Appendix F. IN SERVICE ALARM TRIP...
Page 126 6 F 2 S 0 8 4 2 SPMM Figure 3.1.2 Hardware structure The hardware block diagram of GRD150 is shown in Figure 3.1.3. SPMM - DC/DC - Analog filter DC supply Current - CT converter - Multiplexer x 4 or 5 - Binary input - A/D converter Input...
Page 127 6 F 2 S 0 8 4 2 This module incorporates 4 or 5 auxiliary CTs and 3 or 4 auxiliary VTs depending on the relay model. (The reference between the relay model and number of AC input signal is given in Table 3.2.1.) SPMM Module The SPMM module consists of analogue filter, analogue to digital (A/D) converter, multiplexer,...
Page 128 6 F 2 S 0 8 4 2 Label Color Remarks IN SERVICE Green Lit when the relay is in service and flickered when the relay is in “Test” menu. ALARM Lit when a failure is detected. TRIP Lit when a trip command is issued. TESTING Lit when test condition is set.
Page 129 6 F 2 S 0 8 4 2 3.2 Input and Output Signals 3.2.1 AC Input Signals Table 3.2.1 shows the AC input signals necessary for the GRD150 model and their respective input terminal numbers. Table 3.2.1 AC Input Signals [APPL-CT] setting [APPL-VT] setting Term.
Page 130 6 F 2 S 0 8 4 2 (−) (−) BI1 command BI1 command 1482 1292 1472 1280 IO2-BI1 IO1-BI1 BI2 command BI2 command 1293 1483 1473 1281 IO2-BI2 IO1-BI2 BI3 command BI3 command 1484 1294 1474 1282 IO2-BI3 IO1-BI3 BI4 command BI4 command 1485...
Page 131 6 F 2 S 0 8 4 2 3.3 Automatic Supervision 3.3.1 Basic Concept of Supervision Though the protection system is in a non-operating state under normal conditions, it waits for a power system fault to occur at any time, and must operate for the fault without fail. Therefore, the automatic supervision function, which checks the health of the protection system during normal operation, plays an important role.
Page 132 6 F 2 S 0 8 4 2 Memory monitoring Memory is monitored as follows, depending on the type of memory, and checks are done to verify that memory circuits are healthy: • Random access memory monitoring: Writes/reads prescribed data and checks the storage function. •...
Page 133 6 F 2 S 0 8 4 2 3.3.4 VT Failure Supervision This function is available for [APPL-VT] = “3PN” and “3PV” settings. When a fault occurs in the secondary circuit of the voltage transformer (VT), the voltage dependent measuring elements may operate incorrectly. GRD150 incorporates a VT failure supervision function (VTFS) as a measure against such incorrect operation.
Page 134 6 F 2 S 0 8 4 2 VTF1 ALM 292, 1984 293, 1985 ≥1 ≥1 ≥1 VTF1 & 294, 1986 & NON VTF1 296, 1988 0.015s 0.1s 297, 1989 ≥1 OCDF & & 298, 1990 0.1s & "OPT-ON" [VTF1EN] ≥1 "ON"...
Page 135 6 F 2 S 0 8 4 2 3.3.4 Circuit Breaker State Monitoring The relay provides the circuit breaker state monitoring function. If two binary inputs are programmed to the functions ‘CB OPEN’ and ‘CB CLOSED’ by PLC, then the CB state monitoring function becomes active. In normal circumstances these inputs are in opposite states.
Page 136 6 F 2 S 0 8 4 2 3.3.6 Trip Blocking When a failure is detected by the following supervision items, the trip function is blocked as long as the failure exists, and is restored when the failure is removed. •...
Page 137 6 F 2 S 0 8 4 2 3.4 Recording Function The GRD150 is provided with the following recording functions: Fault recording Alarm recording Event recording Disturbance recording Counters These records are displayed on the LCD of the relay front panel or on the local or remote PC. 3.4.1 Fault Recording Fault recording is started by any of a tripping command of the GRD150 and start commands...
Page 138 6 F 2 S 0 8 4 2 - Magnitude and phase angle of phase-to-phase voltage (V ab , V bc , V ca ) - Magnitude and phase angle of symmetrical component voltage (V 1 , V 2 , V 0 ) - Magnitude and phase angle of zero sequence voltage which is measured directly in the form of the system residual voltage (Ve) for model 100 and 300 series - Magnitude and phase angle of voltage for synchronism check (V s ) for model 300 and 400...
Page 139 6 F 2 S 0 8 4 2 3.4.3 Event Recording The events are recorded with the 1 ms resolution time-tag when the status changes. The user can set the maximum 128 recording items and their status change mode by RSM100. The event recording is initiated by PLC function.
Page 140 6 F 2 S 0 8 4 2 The records include maximum 9 analogue signals (I a , I b , I c, I e , I se , V a , V b , V c , V 0(e) ), 32 binary signals and the dates and times at which recording started.
Page 141 6 F 2 S 0 8 4 2 Element Range Step Default Remarks 1.0-130.0V 0.1 V 20.0 V Negative sequence overvoltage detection (*) Current values shown in the parentheses are for the case of a 1A rating. Other current values are for the case of a 5A rating.
Page 142 6 F 2 S 0 8 4 2 3.5 Fault locator 3.5.1 Application The fault locator incorporated in the GRD150 measures the distance to fault on the protected line using local voltages and currents. The measurement result is expressed as a percentage (%) of the line length and the distance (km) and is displayed on the LCD on the relay front panel.
Page 143 6 F 2 S 0 8 4 2 Distance calculation for earth fault (in the case of A-phase earth fault) ⋅ × α ") ⋅ α ⋅ ⋅ ⋅ ⋅ α ⋅ ⋅ ⋅ × α α α α " + R ") + R "...
Page 144 6 F 2 S 0 8 4 2 3.5.5 Setting The setting items necessary for the fault location and their setting ranges are shown in the table below. The reactance and resistance values are input in expressions on the secondary side. When there are great variations in the impedance of each phase, equation (4) is used to find the positive sequence impedance, zero sequence impedance and zero sequence mutual impedance, while equation (5) is used to find imbalance compensation factors K ab to K a .
Page 145 6 F 2 S 0 8 4 2 4. User Interface 4.1 Outline of User Interface The user can access the relay from the front panel. Local communication with the relay is also possible using a personal computer (PC) via an RS232C port.
Page 146 6 F 2 S 0 8 4 2 the time (BLOFFT setting time) or longer without operation, the backlight will go off. The setting range of the BLOFFT time is 1 to 60min and the default setting is 3min. Further, the LCD panel state reset function is provided. This function is the LCD screen turns to the blank screen if any display is left for the predetermined STARSTT time or longer without operation.
Page 147 6 F 2 S 0 8 4 2 SELECT : Used to select the target object. Push , , or key until the object is enclosed. The object keeps highlighted until the control operation is completed. Used to close (or free) the selected object. Used to open (or earth) the selected object.
Page 148 6 F 2 S 0 8 4 2 4.1.2 Communication Ports The following interfaces can be mounted as communication ports: • RS232C port • RS485 port • IRIG-B port RS232C port This connector is a standard 9-way D-type connector for serial port RS232C transmission and is mounted on the front panel.
Page 149 6 F 2 S 0 8 4 2 4.2 Operation of the User Interface The user can access such functions as recording, measurement, relay setting and testing with the LCD display and operation keys. 4.2.1 LCD and LED Displays Note: The contents of LCD screens depend on the relay model. Displays during normal operation When the GRD150 is operating normally, the green "RUN"...
Page 150 6 F 2 S 0 8 4 2 Fault view F a u l t v i e w 2 5 / F e b / 2 0 0 3 0 9 : 4 5 F a u l t # 1 1 9 / O c t / 2 0 0 2 0 9 : 3 2 : 5 0 .
Page 151 6 F 2 S 0 8 4 2 Displays in tripping If a fault occurs and a tripping command is output when the LCD is off, the "Fault view" screen is displayed on the LCD automatically and the red "TRIP" LED lights. Press the VIEW key to display the digest screens in turn including the "MIMIC"...
Page 152 6 F 2 S 0 8 4 2 4.2.2 Relay Menu Figure 4.2.1 shows the menu hierarchy in the GRD150. The menu has five sub-menus, "MIMIC", "Record", "Status", "Settings" and "Test". Main Menu MIMIC Record Fault Record Alarm Record Event Record Disturbance Record Counters Clear records...
Page 153 6 F 2 S 0 8 4 2 Record In the "Record" menu, the fault records, alarm records, event records, disturbance records and counts such as trip count and ΣIy count can be displayed or erased. Status The "Status" menu displays the metering of power system quantities, relay measuring element status, condition monitoring status, binary input and output status and information such as relay version.
Page 154 6 F 2 S 0 8 4 2 S t a t u s S e t t i n g s T e s t P a s s w o r d [ < 0 1 2 3 4 5 6 7 8 9 To display the "Main Menu"...
Page 155 6 F 2 S 0 8 4 2 (1) Title area: showing the hierarchical layer of the screen. The level of menu is shown division with "-". (2) Date and time: showing the current date and time. (3) Page number (only for the plural pages of the menu): showing Current page number / Total page number.
Page 156 6 F 2 S 0 8 4 2 4.2.3 MIMIC Menu The sub-menu of "MIMIC" is used for MIMIC view and MIMIC control. MIMIC control is available only in "Local" control mode. 4.2.3.1 Displaying MIMIC menu To display the MIMIC menu, do the following: •...
Page 157 6 F 2 S 0 8 4 2 • After selecting the setting device by using keys, push the "SELECT" button. Push the button key to open the device and push the button key to close the device. • To change the MIMIC control mode from "LOCAL" to "REMOTE", push the L/R button key to light the remote mode indicator.
Page 158 6 F 2 S 0 8 4 2 • If the printer interface is mounted, printing guidance is displayed as above. When printing a fault record, enter No. by key and press the ENTER key. Then the confirm message is displayed as follows. P r i n t ? # ∗...
Page 159 6 F 2 S 0 8 4 2 ∗ ∗ ∗ . ∗ ∗ k V − ∗ ∗ ∗ . ∗ ˚ ∗ ∗ ∗ ∗ ∗ ∗ A − ∗ ∗ ∗ . ∗ ˚ ∗ ∗ ∗ . ∗ ∗ k V − ∗ ∗ ∗ . ∗ ˚ ∗...
Page 160 6 F 2 S 0 8 4 2 4.2.4.3 Displaying Event Records To display event records, do the following: • Open the top "Main Menu" screen by pressing any keys other than the VIEW , RESET , L/R , SELECT , , F1 and F2 keys.
Page 161 6 F 2 S 0 8 4 2 ( ∗ ) P r i n t ? Y = N o & E N T E R / N = C A N C E L N o : ( ∗ ) : This message is only displayed in the model mounting the printer interface. •...
Page 162 6 F 2 S 0 8 4 2 The pages which are not displayed in the window can be displayed by pressing the VIEW key. 4.2.4.6 Clear records To clear records, do the following: • Open the top "Main Menu" screen by pressing any keys other than the VIEW , RESET , L/R , SELECT , , F1 and F2 keys.
Page 163 6 F 2 S 0 8 4 2 4.2.5 Displaying the Status From the sub-menu of "Status", the following status condition can be displayed on the LCD: Metering data of the protected line Status of measuring elements output Condition monitoring of apparatus such as circuit breaker, disconnector, etc. Status of binary inputs and outputs Relay model information The data are updated every second.
Page 164 6 F 2 S 0 8 4 2 ∗ ∗ ∗ . ∗ ∗ k V − ∗ ∗ ∗ . ∗ ˚ ∗ ∗ ∗ ∗ ∗ ∗ A − ∗ ∗ ∗ . ∗ ˚ ∗ ∗ ∗ . ∗ ∗ k V − ∗ ∗ ∗ . ∗ ˚ ∗...
Page 165 6 F 2 S 0 8 4 2 4.2.5.2 Displaying the Status of Measuring Relay Elements To display the status of measuring relay elements on the LCD, do the following: • Select "Status" on the top "Main Menu" screen to display the "Status" screen. •...
Page 166 6 F 2 S 0 8 4 2 Elements A OC A phase OC elements B OC B phase OC elements C OC C phase OC elements SEF1 SEF2 SEF3 SEF4 NOC1 NOC2 A UC A phase UC elements B UC B phase UC elements C UC C phase UC elements...
Page 167 6 F 2 S 0 8 4 2 4.2.5.3 Displaying the Status of Condition monitoring To display the status of condition monitoring, do the following: • Select "Status" on the top "Main Menu" screen to display the "Status" screen. • Select "Condition monitoring" to display the status of condition monitoring. S t a t u s - C o n d .
Page 168 6 F 2 S 0 8 4 2 The pages which are not displayed in the window can be displayed by pressing the VIEW key. To clear the operation time, do the following: • Select "Clear operation time" to display the guidance message as follows. S t a t u s - C o n d .
Page 169 6 F 2 S 0 8 4 2 The binary input signal is user configurable by PLC function. The status is expressed with logical level "1" or "0" at the photo-coupler output circuit. Line 3 and 4 shows the binary output status. All binary outputs BO1 to BO6 are configurable by PLC function.
Page 170 6 F 2 S 0 8 4 2 4.2.6 Viewing and Changing the Settings The "Settings" sub-menu is used to view, make or change settings for the following items: Protection Control Record Status Time Communication Password Panel Others View mode or Setting change mode •...
Page 171 6 F 2 S 0 8 4 2 • Select the setting item to enter a setting sub-menu and press the ENTER key. In view mode, the input column of each setting sub-menu and the cursor are not displayed. CAUTION Modification of settings : Care should be taken when modifying settings for "active group", "scheme switch"...
Page 172 6 F 2 S 0 8 4 2 C o m m o n 1 / 2 A P P L C T O f f O f f ∗ ∗ ∗ ∗ ∗ ∗ A P P L V T ∗...
Page 173 6 F 2 S 0 8 4 2 • If it is after pressing the ENTER key, move the cursor to the correcting line by pressing the keys and enter the new numerical value. Note: If the CANCEL key is pressed after any entry is confirmed by pressing the ENTER key, all the entries made so far on the screen concerned are canceled and screen returns to the upper one.
Page 174 6 F 2 S 0 8 4 2 P a s s w o r d [ < 0 1 2 3 4 5 6 7 8 9 • Input password correctly to enter the setting change sub-menu. Then the following "Settings" screen is displayed. S e t t i n g s m e n u 2 5 / F e b / 2 0 0 3 0 9 : 4 5 P r o t e c t i o n...
Page 175 6 F 2 S 0 8 4 2 • Enter the group number (1 - 8) and press the ENTER key. Active group can also be changed by assigning the signals to SET.GROUP1(No.2640) to SET.GROUP8(No.2647) by PLC function. Changing the settings Almost all the setting items have default values that are set when the product is shipped.
Page 176 6 F 2 S 0 8 4 2 • Enter the group number (1 - 8) to be copied in Group A and enter the group number (1 - 8) to be overwritten by the copy in Group B, and move the cursor to “Execute” button and press the key.
Page 177 6 F 2 S 0 8 4 2 In case of GRD150-300 or 400 series ∗ ∗ ∗ ∗ ∗ ∗ A P P L C T ∗ ∗ ∗ ∗ ∗ ∗ A P P L V T ∗ ∗ ∗ ∗...
Page 178 6 F 2 S 0 8 4 2 • Select the group to change the settings on the "Change settings" screen to display the "Group ∗ " ( ∗ = 1 − 8 ) screen. S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 179 6 F 2 S 0 8 4 2 ( ∗ 1 ) : "VTS ratio" is only displayed if the model is GRD150-300 or 400 series. ( ∗ 2 ) : "SEFCT ratio" is only displayed if the model is GRD150-200 or 400 series. •...
Page 180 6 F 2 S 0 8 4 2 • Press the ENTER (= Y) key to change settings and return to the "Settings menu" screen. Setting the OC To set the OC settings, do the following. • Select "OC" on the "Group ∗ " screen to display the "OC" screen. S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 181 6 F 2 S 0 8 4 2 S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 182 6 F 2 S 0 8 4 2 <MOC∗C-IEEE> To set the OC ∗ Inverse Curve Type of IEEE, do the following. • Enter "MI" or "VI" or "EI" and press the ENTER key. <MOC∗C-US> To set the OC ∗ Inverse Curve Type of US, do the following. •...
Page 183 6 F 2 S 0 8 4 2 Setting the DOC To set the DOC settings, do the following. • Select "DOC" on the "Group ∗ " screen to display the "DOC" screen. S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 184 6 F 2 S 0 8 4 2 G r o u p ∗ - D O C 4 / 5 ∗ ∗ ∗ ∗ ∗ ∗ # # . # # Α # # . # # A D O C 4 E N D O C 4 ∗...
Page 185 6 F 2 S 0 8 4 2 • Enter "NI" or "VI" or "EI" or "LTI" and press the ENTER key. <MDOC∗C-IEEE> To set the DOC ∗ Inverse Curve Type of IEEE, do the following. • Enter "MI or "VI" or "EI" and press the ENTER key. <MDOC∗C-US>...
Page 186 6 F 2 S 0 8 4 2 • Press the ENTER (= Y) key to change settings and return to the "Settings menu" screen. Setting the EF To set the EF settings, do the following. • Select "EF" on the "Group ∗ " screen to display the "EF" screen. S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 187 6 F 2 S 0 8 4 2 S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 188 6 F 2 S 0 8 4 2 <MEF∗C-IEEE> To set the EF ∗ Inverse Curve Type of IEEE, do the following. • Enter "MI" or "VI" or "EI" and press the ENTER key. <MEF∗C-US> To set the EF ∗ Inverse Curve Type of US, do the following. •...
Page 189 6 F 2 S 0 8 4 2 Setting the DEF To set the DEF setting, do the following. • Select "DEF" on the "Group ∗ " screen to display the "DEF" screen. S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 190 6 F 2 S 0 8 4 2 G r o u p ∗ - D E F 4 / 5 ∗ ∗ ∗ ∗ ∗ ∗ # # # . # Α # # # . # A D E F 4 E N D E F 4 ∗...
Page 191 6 F 2 S 0 8 4 2 • Enter "NI" or "VI" or "EI" or "LTI" and press the ENTER key. <MDEF∗C-IEEE> To set the DEF ∗ Inverse Curve Type of IEEE, do the following. • Enter "MI" or "VI" or "EI" and press the ENTER key. <MDEF∗C-US>...
Page 192 6 F 2 S 0 8 4 2 C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L • Press the ENTER (= Y) key to change settings and return to the "Settings menu" screen. Setting the SEF To set the SEF setting, do the following.
Page 193 6 F 2 S 0 8 4 2 S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 194 6 F 2 S 0 8 4 2 <MSE∗C-IEEE> To set the SE ∗ Inverse Curve Type of IEEE, do the following. • Enter "MI" or "VI" or "EI" and press the ENTER key. <MSE∗C-US> To set the SE ∗ Inverse Curve Type of US, do the following. •...
Page 195 6 F 2 S 0 8 4 2 C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L • Press the ENTER (= Y) key to change settings and return to the "Settings menu" screen. Setting the DSEF To set the DSEF setting, do the following.
Page 196 6 F 2 S 0 8 4 2 S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 197 6 F 2 S 0 8 4 2 <MDSE∗C-IEC> To set the DEF ∗ Inverse Curve Type of IEC, do the following. • Enter "NI" or "VI" or "EI" or "LTI" and press the ENTER key. <MDSE∗C-IEEE> To set the DEF ∗ Inverse Curve Type of IEEE, do the following. •...
Page 198 6 F 2 S 0 8 4 2 TDSE1D, TDSE2D, TDSE1S2: 0.00 - 300.00 TDSE1RD, TDSE2RD: 0.0 - 300.0 TDSE1P, TDSE1RP, TDSE2P, TDSE2RP: 0.010 - 1.500 TDSE3, TDSE4: 0.00 - 300.00 0.00 – 100.00W (5A rating) 0.00 – 20.00W (1A rating) DSE1-k, DSE2-k: 0.000 - 30.000 DSE1-a, DSE2-a:...
Page 199 6 F 2 S 0 8 4 2 <MNC1C-IEC> To set the NC1 Inverse Curve Type of IEC, do the following. • Enter "NI" or "VI" or "EI" or "LTI" and press the ENTER key. <MNC1C-IEEE> To set the NC1 Inverse Curve Type of IEEE, do the following. •...
Page 200 6 F 2 S 0 8 4 2 Setting the DNOC To set the DNOC setting, do the following. • Select "DNOC" on the "Group ∗ " screen to display the "DNOC" screen. S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 201 6 F 2 S 0 8 4 2 <MDNC1C-IEC> To set the DNC1 Inverse Curve Type of IEC, do the following. • Enter "NI" or "VI" or "EI" or "LTI" and press the ENTER key. <MDNC1C-IEEE> To set the DNC1 Inverse Curve Type of IEEE, do the following. •...
Page 202 6 F 2 S 0 8 4 2 screen. S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 203 6 F 2 S 0 8 4 2 UC ∗ : 0.5 - 10.0 (5A rating) 0.10 - 2.00 (1A rating) TUC ∗ : 0.00 - 300.00 THM: 0.1 - 10.0 (5A rating) 0.02 - 2.00 (1A rating) THMIP: 0.0 - 5.0 (5A rating) 0.00 - 1.00 (1A rating) TTHM: 0.5 - 100.0 THMA:...
Page 204 6 F 2 S 0 8 4 2 CBF: 0.5 - 10.0 (5A rating) 0.10 - 2.00 (1A rating) TBTC, TRTC: 0.00 - 300.00 • Enter the numerical value and press the ENTER key. • After setting, press the END key to display the following confirmation message. C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L •...
Page 205 6 F 2 S 0 8 4 2 <CLDOEN> To set the Cold load drop-off enable, do the following. • Enter "On" to enable the Cold Load drop-off and press the ENTER key. If disabling the Cold Load drop-off, enter "Off" and press the ENTER key. <<Element>>...
Page 206 6 F 2 S 0 8 4 2 S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 207 6 F 2 S 0 8 4 2 <ZOV2EN> To set the ZOV2 scheme enable, do the following. • Enter "On" to enable the ZOV2 scheme and press the ENTER key. If disabling the ZOV2 scheme, enter "Off" and press the ENTER key. <NOV1EN>...
Page 208 6 F 2 S 0 8 4 2 Setting the FRQ / DFRQ To set the Over/Under Frequency setting, do the following. • Select "FRQ" on the "Group ∗ " screen to display the "FRQ" screen. S e t t i n g s - P r o t e c t i o n 2 5 / F e b / 2 0 0 3 0 9 : 4 5 G r o u p ∗...
Page 209 6 F 2 S 0 8 4 2 FVBLK: 40.0 - 100.0 DFRQ1 – 6: 0.1 – 15.0 • Enter the numerical value and press the ENTER key. • After setting, press the END key to display the following confirmation message. C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L •...
Page 210 6 F 2 S 0 8 4 2 # # # . # # s # # # . # # s # # # . # # s # # # . # # s T 1 S 2 T 2 S 2 T 1 S 2 R # # # .
Page 211 6 F 2 S 0 8 4 2 Enter "S3" to perform the three-shot autoreclosing. Enter "S4" to perform the four-shot autoreclosing. Enter "S5" to perform the five-shot autoreclosing. <OC∗-INIT, DOC∗-INIT, EF∗-INIT, DEF∗-INIT, SE∗-INIT, DSE∗-INIT, EXT-INIT> To set the Autoreclosing initiation enable, do the following. •...
Page 212 6 F 2 S 0 8 4 2 # # # . # V # # # . # V O V I # # # . # V # # # . # V U V I # # # . # V # # # . # V S Y N O V # # # .
Page 213 6 F 2 S 0 8 4 2 • Enter the numerical value and press the ENTER key. • After setting, press the END key to display the following confirmation message. C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L •...
Page 214 6 F 2 S 0 8 4 2 4.2.6.3 Setting the Control To set the control, do the following: • Select "Settings menu" on the top "Main Menu" screen to display the "Settings menu" screen. • Select "Control" on the "Settings menu" screen to display the "Control" screen. S e t t i n g s - C o n t r o l 2 5 / F e b / 2 0 0 3 0 9 : 4 5 S w i t c h...
Page 215 6 F 2 S 0 8 4 2 Setting the Pulse width To change the Pulse width settings, do the following: • Select "Pulse width" on the "Control" screen to display the "Pulse width" screen. S e t t i n g s - C o n t r o l 2 5 / F e b / 2 0 0 3 0 9 : 4 5 P u l s e w i d t h 1 / 2...
Page 216 6 F 2 S 0 8 4 2 • Enter the numerical value and press the ENTER key. • After setting, press the END key to display the following confirmation message. C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L •...
Page 217 6 F 2 S 0 8 4 2 • Press the ENTER (= Y) key to change settings and return to the "Settings menu" screen. 4.2.6.4 Setting the Recording To set the recording function as described in Section 4.2.4, do the following: •...
Page 218 6 F 2 S 0 8 4 2 Setting the Disturbance Record To change the Disturbance Record setting, do the following: • Select "Disturbance Record" on the "Record" screen to display the "Disturbance Record" screen. S e t t i n g s - R e c o r d 2 5 / F e b / 2 0 0 3 0 9 : 4 5 D i s t u r b a n c e R e c o r d ∗...
Page 219 6 F 2 S 0 8 4 2 • After setting, press the END key to display the following confirmation message. C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L •...
Page 220 6 F 2 S 0 8 4 2 <<Scheme switch>> To set counters in page 1/2, do the following. • Enter "NA" or "C-On" or "C-Off" or "C-OnOff" or "Cycle" and press the ENTER key. To set counters in page 2/2, do the following. •...
Page 221 6 F 2 S 0 8 4 2 S e t t i n g s - R e c o r d 2 5 / F e b / 2 0 0 3 0 9 : 4 5 C o u n t e r - A l a r m s e t t i n g 3 / 4 C B C T T A E N ∗...
Page 222 6 F 2 S 0 8 4 2 • After setting, press the END key to display the following confirmation message. C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L •...
Page 223 6 F 2 S 0 8 4 2 # # s S e t t i n g s - R e c o r d 2 5 / F e b / 2 0 0 3 0 9 : 4 5 C o u n t e r - C h a n g e v a l u e 4 / 4 # # # # #...
Page 224 6 F 2 S 0 8 4 2 4.2.6.5 Setting the Status To set the status function as described in Section 4.2.5, do the following: • Select "Settings menu" on the top "Main Menu" screen to display the "Settings menu" screen. •...
Page 225 6 F 2 S 0 8 4 2 Reactive Power Display Current setting=1(Lag) Current setting=2(Lead) ＋－－＋－－＋＋ <<Scheme switch>> <Display value> To set the display value, do the following. • Enter "Primary" or "Secondary" and press the ENTER key. <Power>...
Page 226 6 F 2 S 0 8 4 2 # # . # k V # # . # k V V H Y S T S e t t i n g s - S t a t u s 2 5 / F e b / 2 0 0 3 0 9 : 4 5 A l a r m / W a r n i n g 2 / 4...
Page 227 6 F 2 S 0 8 4 2 <<Scheme switch>> <∗ ∗ ∗ ALMEN, WAREN> To set the alarm or warning enable, do the following. • Enter "Off"(disable) or "On"(enable) and press the ENTER key. <<Element>> • The ranges of settings are as follows: I ALM, WAR: 0.0 - 999.9kA V, Ve ALM, WAR:...
Page 228 6 F 2 S 0 8 4 2 All items: 0 - 999999 • Enter the numerical value and press the ENTER key. • After setting, press the END key to display the following confirmation message. C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L •...
Page 229 6 F 2 S 0 8 4 2 • Enter the delay time ( − 9999 - 9999) and press the ENTER key. < GMT> When the calendar clock is synchronized with the IRIG-B time standard, it is possible to transform GMT to the local time.
Page 230 6 F 2 S 0 8 4 2 F r o n t p o r t ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ B a u d r a t e <232C> This line is to select the RS-232C baud rate when the RSM system applied. •...
Page 231 6 F 2 S 0 8 4 2 # # # . # # # . # # # . # # # # # # . # # # . # # # . # # # # # # . # # # . # # # . # # # # # # .
Page 232 6 F 2 S 0 8 4 2 <IP, SM, GW> These lines are to set IP(Internet Protocol Address), SM(Subnet Mask) and GW(Gateway Address). • Enter the address number (000.000.000.000 - 255.255.255.255) and press the ENTER key. • After setting, press the END key to display the following confirmation message. C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L •...
Page 233 6 F 2 S 0 8 4 2 C h a n g e s e t t i n g s ? Y = E N T E R / N = C A N C E L • Press the ENTER (= Y) key to change settings and return to the "Settings menu" screen. RSM-X •...
Page 234 6 F 2 S 0 8 4 2 <M.D.BLK> M.D.BLK is used to block the monitor direction in IEC103 communication. If the blocking of the direction is activated, all indications and measurands are no longer transmitted. • Enter "Normal" or "Blocked" and press the ENTER key. •...
Page 235 6 F 2 S 0 8 4 2 • Select the item to change, and then the following message are displayed. P a s s w o r d [ < 0 1 2 3 4 5 6 7 8 9 •...
Page 236 6 F 2 S 0 8 4 2 # # h r s # # h r s S T A R S T T <LCD contrast> • Press the key to adjust the contrast. The characters on the screen become thin by pressing the key and deep by pressing the key.
Page 237 6 F 2 S 0 8 4 2 4.2.7 Testing View mode or Testing mode • Open the top "Main Menu" screen by pressing any keys other than the VIEW , RESET , L/R , SELECT , , F1 and F2 keys. •...
Page 238 6 F 2 S 0 8 4 2 4.2.7.1 Switch To display "Switch" screen to set the setting for testing, do the following: • Select "Test" to display the "Test" sub-menu. Then the following password screen is displayed if the password is set. M a i n M e n u 2 5 / F e b / 2 0 0 3 0 9 : 4 5 M I M I C...
Page 239 6 F 2 S 0 8 4 2 The automatic monitor function (A.M.F.) can be disabled by setting the switch [A.M.F] to "OFF". Disabling the A.M.F. inhibits trip blocking even in the event of a failure in the items being monitored by this function.
Page 240 6 F 2 S 0 8 4 2 4.2.7.2 Binary Output Relay It is possible to forcibly operate all binary output relays for checking connections with the external devices. Forced operation can be performed on one or more binary outputs at a time. •...
Page 241 6 F 2 S 0 8 4 2 • Enter "ENA" (Enable) and press the ENTER key to operate the output relays forcibly. • After completing the entries, press the END key to display the following confirmation message on the bottom line. O p e r a t e ? Y = P r e s s i n g E N T E R N = C A N C E L •...
Page 242 6 F 2 S 0 8 4 2 4.3 Local Communication The following functions can be operated from a personal computer using an RS232C port on the front panel. (1) Relay Setting and Monitoring (RSM100) function On the personal computer, the following analysis and display of the fault currents and voltages are available in addition to the items available on the LCD screen.
Page 243 6 F 2 S 0 8 4 2 IEC 60870-5-103 Interface The GRD150 can support the IEC60870-5-103 communication protocol. This protocol is mainly used when the relay communicates with a control system and is used to transfer the following measurand and status data from the relay to the control system. (For details, see Appendix M.) •...
Page 244 6 F 2 S 0 8 4 2 4.5 Clock Function The clock function (Calendar clock) is used for time-tagging for the following purposes: • Event records • Disturbance records • Fault records • Alarm records • Metering • Display of the system quantities on the digest screen •...
Page 245 6 F 2 S 0 8 4 2 5. Installation 5.1 Receipt of Relays When relays are received, carry out the acceptance inspection immediately. In particular, check for damage during transportation, and if any is found, contact the vendor. Always store the relays in a clean, dry environment. 5.2 Relay Mounting A flush mounting relay is included.
Page 246 6 F 2 S 0 8 4 2 5.5 External Connections External connections for each relay model are shown in Appendix G. ⎯ ⎯...
Page 247 6 F 2 S 0 8 4 2 6. Commissioning and Maintenance 6.1 Outline of Commissioning Tests The GRD150 is fully numerical and the hardware is continuously monitored. Commissioning tests can be kept to a minimum and need only include hardware tests and the conjunctive tests.
Page 248 6 F 2 S 0 8 4 2 6.2 Cautions 6.2.1 Safety Precautions CAUTION • The relay rack is provided with an earthing terminal. Before starting the work, always make sure the relay rack is earthed. • When connecting the cable to the back of the relay, firmly fix it to the terminal block and attach the cover provided on top of it.
Page 249 6 F 2 S 0 8 4 2 6.3 Preparations Test equipment The following test equipment is required for the commissioning tests. 1 Single-phase current source 1 Three-phase current source 1 Single-phase voltage source 1 Three-phase voltage source 1 DC power supply 3 Phase angle meter 3 AC ammeter 3 AC voltmeter...
Page 250 6 F 2 S 0 8 4 2 6.4 Hardware Tests The tests can be performed without external wiring, but a DC power supply and AC current and voltage sources are required. 6.4.1 User Interfaces This test ensures that the LCD, LEDs and keys function correctly. LCD and LEDs are checked in blank status.
Page 251 6 F 2 S 0 8 4 2 6.4.2 Binary Input Circuit The testing circuit is shown in Figure 6.4.1. IO2 – IO4 TB ∗ BI10 TB 4 - 18 power − supply - 19 - 20 (TB∗) TB3 for IO2, TB5 for IO3, TB7 for IO4 Figure 6.4.1 Testing Binary Input Circuit •...
Page 252 6 F 2 S 0 8 4 2 and output relays. Operation of the output contacts is monitored at the output terminal. The output contact and corresponding terminal number are shown in Appendix G. T e s t M e n u 2 5 / F e b / 2 0 0 3 0 9 : 4 5 S w i t c h B i n a r y O / P...
Page 253 6 F 2 S 0 8 4 2 6.4.4 AC Input Circuits This test can be performed by applying known values of voltage and current to the AC input circuits and verifying that the values applied coincide with the values displayed on the LCD screen.
Page 254 6 F 2 S 0 8 4 2 6.5 Function Test CAUTION The function test may cause the output relays to operate including the tripping output relays. Therefore, the test must be performed with tripping circuits disconnected. 6.5.1 Measuring Relay Element Measuring relay element characteristics are realized by software, so it is possible to verify the overall characteristics by checking representative points.
Page 255 6 F 2 S 0 8 4 2 6.5.1.1 Overcurrent and undercurrent element OC1 to OC4, UC1, UC2 and CBF and Earth fault element EF1 to EF4 and SEF1 to SEF4 The overcurrent element is checked on the operating current value and operating time for IDMT curve.
Page 256 6 F 2 S 0 8 4 2 Operating time check for IDMT curve The testing circuit is shown in Figure 6.5.2. GRD150 Single-phase current source Monitoring jack TB4 -18 power − supply Start Time counter Stop Figure 6.5.2 Testing IDMT One of the inverse time characteristics can be set, and the output signal numbers of the IDMT elements are as follows: Element...
Page 257 6 F 2 S 0 8 4 2 6.5.1.2 Earth fault element EF1 to EF4 and SEF1 to SEF4 The earth fault element is checked on the operating current value and operating time for IDMT curve. Operating current check The testing circuit is shown in Figure 6.5.3. GRD150 Single-phase current...
Page 258 6 F 2 S 0 8 4 2 Operating time check for IDMT curve The testing circuit is shown in Figure 6.5.4. GRD150 Single-phase current source I se Monitoring jack TB4 -18 power − supply Start Time counter Stop Note: Connect the dotted line for current input in SEF element Figure 6.5.4 Testing IDMT One of the inverse time characteristics can be set, and the output signal numbers of the IDMT elements are as follows:...
Page 259 6 F 2 S 0 8 4 2 6.5.1.3 Directional elements DOC, DEF, DSEF The directional elements are checked on the directional characteristic. DOC element The test circuit is shown in Figure 6.5.5. GRD150 Three-phase voltage source Monitoring φ jack Single-phase current source...
Page 260 6 F 2 S 0 8 4 2 DEF element The test circuit is shown in Figure 6.5.6. GRD150 Three-phase −V 0 voltage source φ Monitoring jack Single-phase current source I se power − supply voltmeter Note: Connect the dotted line for current input in DSEF element Figure 6.5.6 Testing DEF Elements DEF elements and their output signal number are listed below.
Page 261 6 F 2 S 0 8 4 2 The following shows the case when testing DSEF1F. • Select “Logic circuit” on the “Test menu” screen to display the “Logic circuit” screen. • Enter the signal number to be observed at monitoring jack A as shown in Section 6.5.1. •...
Page 262 6 F 2 S 0 8 4 2 6.5.1.5 Negative sequence overcurrent element NOC1 and NOC2 The testing circuit is shown in Figure 6.5.7. GRD150 Three-phase Current source Monitoring jack power − supply voltmeter Figure 6.5.7 Testing NOC elements The output signal of testing element is assigned to the monitoring jack A. The output signal numbers of the elements are as follows: Element Signal No.
Page 263 6 F 2 S 0 8 4 2 be between 1.2 × I s to 20 × I s , where I s is the current setting. • Calculate the theoretical operating time using the characteristic equations shown in Section 2.1.1.
Page 264 6 F 2 S 0 8 4 2 6.5.1.7 Broken conductor detection element BCD The testing circuit is shown in Figure 6.5.9. GRD150 Three-phase Current source Monitoring jack power − supply voltmeter Figure 6.5.9 Testing BCD element The output signal of testing element is assigned to the monitoring jack A. The output signal numbers of the elements are as follows: Element Signal No.
Page 265 6 F 2 S 0 8 4 2 6.5.1.9 Overvoltage and Undervoltage Elements The testing circuit is shown in Figure 6.5.10. GRD150 Variable- − Voltage source Monitoring jack TB4 -18 power − supply voltmeter (a) For [APPL-VT]=3PN and 3PV setting GRD150 V ab Three-phase...
Page 266 6 F 2 S 0 8 4 2 UV1D-1 UV2D-1 ZOV1D ZOV2D OV1I-1 UV1I-1 ZOV1I • Enter the signal number to observe the operation at the monitoring jack A as shown in Section 6.5.1. Operating Value Test Overvoltage element OV1D, OV2D, ZOV1D, ZOV2D •...
Page 267 6 F 2 S 0 8 4 2 The output signal of testing element is assigned to the monitoring jack A. The output signal numbers of the elements are as follows: Element Signal No. NOV1D NOV2D • Enter the signal number to observe the operation at the monitoring jack A as shown in Section 6.5.1.
Page 268 6 F 2 S 0 8 4 2 Overfrequency or underfrequency elements FRQ1 to FRQ6 • Enter the signal number to observe the operation at the monitoring jack A as shown in Section 6.5.1. • Apply a rated voltage and frequency as shown in Figure 6.5.12. In case of overfrequency characteristic, •...
Page 269 6 F 2 S 0 8 4 2 Voltage check element OVR, UVR, OVI and UVI • Enter the signal number to observe the operation at the monitoring jack A as shown in Section 6.5.1. • Apply a rated voltage as shown in Figure 6.5.1. OVR and UVR : •...
Page 270 6 F 2 S 0 8 4 2 6.5.2 Protection Scheme In the protection scheme tests, a dynamic test set is required to simulate power system pre-fault, fault and post-fault conditions. Tripping is observed with the tripping command output relays. Circuit Breaker failure tripping •...
Page 271 6 F 2 S 0 8 4 2 6.6 Conjunctive Tests 6.6.1 On Load Test To check the polarity of the current and voltage transformers, check the load current, system voltage and their phase angle with the metering displays on the LCD screen. •...
Page 272 6 F 2 S 0 8 4 2 6.6.2 Tripping, Reclosing and Control Circuit Test The tripping circuit including the circuit breaker is checked by forcibly operating the output relay and monitoring the circuit breaker to confirm that it is tripped. Forcible operation of the output relay is performed on the "Binary O/P "...
Page 273 6 F 2 S 0 8 4 2 • Enter "ENA" (Enable) for the assigned BO and press the ENTER key to operate the output relay forcibly. • After completing the entries, press the END key to display the following confirmation message on the bottom line.
Page 274 6 F 2 S 0 8 4 2 6.7 Maintenance 6.7.1 Regular Testing The relay is almost completely self-supervised. The circuits that can not be supervised are binary input and output circuits and human interfaces. Therefore, regular testing is minimised to checking the unsupervised circuits. The test procedures are the same as described in Sections 6.4.1, 6.4.2 and 6.4.3.
Page 275 6 F 2 S 0 8 4 2 Table 6.7.1 LCD Message and Failure Location Message Failure location SPMM AC cable External (CT, VT) trip circuit SUM err SRAM err BU-RAM err EEPROM err ROM data err A/D err DC err CT err V0 err V2 err...
Page 276 6 F 2 S 0 8 4 2 6.7.3 Replacing Failed Relay Unit If the failure is identified to be in the relay unit and the user has a spare relay unit, the user can recover the protection by replacing the failed relay unit. Repair at the site should be limited to relay unit replacement.
Page 277 6 F 2 S 0 8 4 2 7. Putting Relay into Service The following procedure must be adhered to when putting the relay into service after finishing the commissioning tests or maintenance tests. • Check that all the external connections are correct. •...
Page 278 6 F 2 S 0 8 4 2 Appendix A Programmable Reset Characteristics and Implementation of Thermal Model to IEC60255-8 ⎯ 277 ⎯...
Page 279 6 F 2 S 0 8 4 2 Programmable Reset Characteristics The overcurrent stages for phase and earth faults, OC1 and EF1, each have a programmable reset feature. Resetting may be instantaneous, definite time delayed, or, in the case of IEEE/US curves, inverse time delayed.
Page 280 6 F 2 S 0 8 4 2 Implementation of Thermal Model to IEC60255-8 Heating by overload current and cooling by dissipation of an electrical system follow exponential time constants. The thermal characteristics of the electrical system can be shown by equation (1). ⎛...
Page 281 6 F 2 S 0 8 4 2 = prior load current. In fact, the cold curve is simply a special case of the hot curve where prior load current I = 0, catering for the situation where a cold system is switched on to an immediate overload. Figure A-3 shows a typical thermal profile for a system which initially carries normal load current, and is then subjected to an overload condition until a trip results, before finally cooling to ambient temperature.
Page 282 6 F 2 S 0 8 4 2 Appendix B Directional Earth Fault Protection and Power System Earthing ⎯ 281 ⎯...
Page 283 6 F 2 S 0 8 4 2 Directional Earth Fault Protection and Power System Earthing Power systems may be solidly earthed, impedance earthed or unearthed (insulated). Depending on the method used, faults to earth have widely differing characteristics, and so methods of earth fault protection differ greatly between the various types of system.
Page 284 6 F 2 S 0 8 4 2 The relay characteristic angle setting is applied to compensate for lag of the fault current. Generally accepted angle settings are -45° for solidly earthed distribution systems and -60° for transmission systems. Due to system imbalances and measuring tolerances, small levels of residual voltage can be present during normal operating conditions.
Page 285 6 F 2 S 0 8 4 2 +..Healthy Faulty feeder feeder Earth (e) +... Figure B2 - Residual Current Flow in an Unearthed System It can be shown that the residual current measured in the faulty feeder is 180° out of phase with that in the healthy feeder, as illustrated in Figure B2 This fact can be used to apply a GRD150 directional sensitive earth fault relay.
Page 286 6 F 2 S 0 8 4 2 the residual current lags its polarising voltage by a much smaller angle. Characteristic angle settings of -15° or 0° are common. 3b. Reactance earthing Reactance earthed systems are also common in many countries. A special case of this method is known as Petersen coil, or resonant, earthing.
Page 287 6 F 2 S 0 8 4 2 ⎯ 286 ⎯...
Page 288 6 F 2 S 0 8 4 2 Appendix C Signal List ⎯ 287 ⎯...
Page 289 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common dummy_0 constant 0 dummy 1 constant 1 Output Signal OC1D-A Relay element output signal from OC1D-B ditto Protection OC1D-C ditto Autoreclose OC2D-A ditto ↓ OC2D-B ditto OC2D-C...
Page 290 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common SEFHS ditto DEF1I ditto DEF2I ditto DSEF1I ditto DSEF2I ditto DNOC1I ditto 100 EF1D ditto 101 EF2D ditto 102 EF3D ditto 103 EF4D ditto 104 SEF1D ditto 105 SEF2D...
Page 291 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 163 RPR ditto 164 UC1-A ditto 165 UC1-B ditto 166 UC1-C ditto 168 UC2-A ditto 169 UC2-B ditto 170 UC2-C ditto 172 PHMAX-A 173 PHMAX-B 174 PHMAX-C 176 THM-T ditto...
Page 292 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 244 ZOV1I ditto 248 NOV1I ditto 260 OC-A_COORD ditto 261 OC-B_COORD ditto 262 OC-C_COORD ditto 263 EF_COORD ditto 264 SEF_COORD ditto 275 PLUS_FLG 276 SYN ditto 277 UVIV ditto...
Page 293 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 324 FRQ1 ditto 325 FRQ2 ditto 326 FRQ3 ditto 327 FRQ4 ditto 328 FRQ5 ditto 329 FRQ6 ditto 331 FRQBLK ditto 332 DFRQ1 ditto 333 DFRQ2 ditto 334 DFRQ3...
Page 294 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 401 DOC1 TRIP DOC1 trip command 402 DOC1-A TRIP ditto (Phase A) 403 DOC1-B TRIP 404 DOC1-C TRIP 405 DOC2 TRIP DOC2 trip command 406 DOC2-A TRIP ditto (Phase A) 407 DOC2-B TRIP...
Page 295 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 481 FRQ3 TRIP 482 FRQ4 TRIP 483 FRQ5 TRIP 484 FRQ6 TRIP 485 GEN.TRIP General trip command 486 GEN.TRIP-A ditto (Phase A) 487 GEN.TRIP-B 488 GEN.TRIP-C 489 GEN.TRIP-AB ditto (Phase AB)
Page 296 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 561 ARC-S1 SUCCESS Auto-Reclosing succeed in shot1 mode 562 ARC-S2 SUCCESS 563 ARC-S3 SUCCESS 564 ARC-S4 SUCCESS 565 ARC-S5 SUCCESS 566 ARC COORD Auto-Reclosing Co-ordination judged 567 VCHK Voltage conditon for Auto-Reclosing 568 VCHK SYN...
Page 297 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 641 SEF1 OP SEF1 relay element output with switch condition 642 SEF2 OP 643 SEF3 OP 644 SEF4 OP 645 DSEF1 OP DSEFF1 relay element output with switch condition 646 DSEF2 OP 647 DSEF3 OP 648 DSEF4 OP...
Page 298 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 721 ARC_COM_ON IEC103 communication command 723 PROT_COM_ON IEC103 communication command 724 IND1_OPEN IND1 open condition 725 IND1_CLOSE IND1 close condition 726 IND2_OPEN IND2 open condition 727 IND2_CLOSE IND2 close condition 728 IND3_OPEN...
Page 299 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 801 DS4_CLILK_ERR Interlock failed(DS4 close) 802 DS5_OPILK_ERR Interlock failed(DS5 open) 803 DS5_CLILK_ERR Interlock failed(DS5 close) 804 EDS1_OPILK_ERR Interlock failed(EDS1 open) 805 EDS1_CLILK_ERR Interlock failed(EDS1 close) 806 EDS1_ERILK_ERR Interlock failed(EDS1 earth) 807 EDS1_FRILK_ERR...
Page 300 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common EDS2_CL_OUT EDS2 close pulse output EDS2_EAR_OUT EDS2 earth pulse output EDS2_FR_OUT EDS2 free pulse output COS1_ON_OUT COS1 on pulse output COS2_ON_OUT COS2 on pulse output COS3_ON_OUT COS3 on pulse output COS4_ON_OUT...
Page 301 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common Ic_UP_ALARM Ic upper limit alarm Ic_UP_WARNING Ic upper limit warning Ie_LOW_ALARM Ie lower limit alarm Ie_LOW_WARNING Ie lower limit warning Ie_UP_ALARM Ie upper limit alarm Ie_UP_WARNING Ie upper limit warning Va_LOW_ALARM...
Page 302 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 1041 1042 1043 1044 FL_ERR fault location start up error 1045 FL_OB_FWD fault location out of bounds(forward) 1046 FL_OB_BACK fault location out of bounds(backward) 1047 FL_NC fault location not converged 1048 FL_COMPLETED...
Page 303 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 1251 1252 1253 1254 1255 1256 1257 1258 IO3-BI1UF Binary input signal of IO3-BI1 (unfiltered) 1259 IO3-BI2UF 2 (unfiltered) 1260 IO3-BI3UF 3 (unfiltered) 1261 IO3-BI4UF 4 (unfiltered) 1262 IO3-BI5UF 5 (unfiltered)
Page 304 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 VTF err VT monitoring error1 or 2 1343 BO block Binary output block signal 1344 A.M.F.OFF Auotmatic monitoring function off 1345 RELAY FAIL...
Page 305 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 1411 1412 NORM_LED_ON NORMAL LED ON 1413 ALM_LED_ON ALARM LED ON 1414 TRIP_LED_ON TRIP LED ON 1415 TEST_LED_ON TEST LED ON 1416 LOCAL_LED_ON LOCAL LED ON 1417 REMOTE_LED_ON REMOTE LED ON 1418 TPALM_LED_RST...
Page 306 6 F 2 S 0 8 4 2 Signal list (PLC input) Record item Contents Common 1491 IO2-BI10UF 10 (unfiltered) 1492 IO2-BI11UF 11 (unfiltered) 1493 1494 1495 1496 1497 1498 1499 1500 IO1-TP1S Binary output status of IO1-TP1 1501 IO1-TP2S 1502 IO1-BO1S 1503 IO1-BO2S 1504 IO1-BO3S...
Page 307 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common Input Signal 1536 OC1 BLOCK OC1 protection scheme block command 1537 OC2 BLOCK Protection 1538 OC3 BLOCK 1539 OC4 BLOCK 1540 DOC1 BLOCK DOC1 protection scheme block command 1541 DOC2 BLOCK 1542 DOC3 BLOCK 1543 DOC4 BLOCK...
Page 308 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 1616 CTF_BLOCK CTF scheme block command 1617 VTF_BLOCK VTF scheme block command 1618 1619 1620 EXT_CTF Extenal CTF command 1621 EXT_VTF Extenal VTF command 1622 1623 1624...
Page 309 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 1691 1692 1693 1694 1695 1696 L_OC1D-A Relay element output signal 1697 L_OC1D-B ditto 1698 L_OC1D-C ditto 1699 1700 L_OC2D-A ditto 1701 L_OC2D-B ditto 1702 L_OC2D-C ditto 1703...
Page 310 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 1771 1772 L_EFHS ditto 1773 L_SEFHS ditto 1774 1775 1776 L_DEF1I ditto 1777 L_DEF2I ditto 1778 1779 1780 L_DSEF1I ditto 1781 L_DSEF2I ditto 1782 1783 1784 L_DNOC1I ditto...
Page 311 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 1851 1852 1853 1854 1855 L_RPR ditto 1856 L_UC1-A ditto 1857 L_UC1-B ditto 1858 L_UC1-C ditto 1859 1860 L_UC2-A ditto 1861 L_UC2-B ditto 1862 L_UC2-C ditto 1863 1864 L_PHMAX-A...
Page 312 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 1931 1932 1933 1934 1935 1936 L_ZOV1I ditto 1937 1938 1939 1940 L_NOV1I ditto 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 L_OC-A_COORD ditto...
Page 313 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 2011 2012 2013 2014 2015 2016 L_FRQ1 ditto 2017 L_FRQ2 ditto 2018 L_FRQ3 ditto 2019 L_FRQ4 ditto 2020 L_FRQ5 ditto 2021 L_FRQ6 ditto 2022 2023 L_FRQBLK ditto 2024...
Page 314 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 2301 2302 2303 Input signal 2304 CB_N/O_CONT CB normally open 2305 CB_N/C_CONT CB normally close control 2306 DS1_N/O_CONT DS1 normally open 2307 DS1_N/C_CONT DS1 normally close 2308 DS2_N/O_CONT DS2 normally open 2309 DS2_N/C_CONT...
Page 315 6 F 2 S 0 8 4 2 Record item Contents Common 2381 DS1 CLILOCK DS1 close interlock fail 2382 DS2 OPILOCK DS2 open interlock fail 2383 DS2 CLILOCK DS2 close interlock fail 2384 DS3 OPILOCK DS3 open interlock fail 2385 DS3 CLILOCK DS3 close interlock fail 2386 DS4 OPILOCK...
Page 316 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 Others 2560 IO1-TP1 Binary output signal of IO1-TP1 2561 IO1-TP2 2562 IO1-BO1 2563 IO1-BO2...
Page 317 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 2621 2622 2623 2624 F.RECORD1 Fault record stored command 1 2625 F.RECORD2 2626 F.RECORD3 2627 F.RECORD4 2628 2629 2630 2631 2632 D.RECORD1 Disturbance record stored command 1 2633 D.RECORD2 2634 D.RECORD3 2635 D.RECORD4...
Page 318 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 Temporary 2816 TEMP001 2817 TEMP002 2818 TEMP003 2819 TEMP004 2820 TEMP005 2821 TEMP006 2822 TEMP007...
Page 319 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 2881 TEMP066 2882 TEMP067 2883 TEMP068 2884 TEMP069 2885 TEMP070 2886 TEMP071 2887 TEMP072 2888 TEMP073 2889 TEMP074 2890 TEMP075 2891 TEMP076 2892 TEMP077 2893 TEMP078 2894 TEMP079 2895 TEMP080...
Page 320 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 2961 TEMP146 2962 TEMP147 2963 TEMP148 2964 TEMP149 2965 TEMP150 2966 TEMP151 2967 TEMP152 2968 TEMP153 2969 TEMP154 2970 TEMP155 2971 TEMP156 2972 TEMP157 2973 TEMP158 2974 TEMP159 2975 TEMP160...
Page 321 6 F 2 S 0 8 4 2 Signal list (PLC output) Record item Contents Common 3041 TEMP226 3042 TEMP227 3043 TEMP228 3044 TEMP229 3045 TEMP230 3046 TEMP231 3047 TEMP232 3048 TEMP233 3049 TEMP234 3050 TEMP235 3051 TEMP236 3052 TEMP237 3053 TEMP238 3054 TEMP239 3055 TEMP240...
Page 322 6 F 2 S 0 8 4 2 Appendix D LCD Message for Fault Record ⎯ 321 ⎯...
Page 323 6 F 2 S 0 8 4 2 Fault Record Item Description message Operating Phase A ohase B phase C phase A-B phase B-C phase C-A phase Trip Mode OC1trip (For Alarm) DOC1 DOC1 trip DOC2 DOC3 DOC4 (For Alarm) EF1 trip (For Alarm) DEF1...
Page 324 6 F 2 S 0 8 4 2 Appendix E Details of Relay Menu and LCD & Button Operation ⎯ 323 ⎯...
Page 325 6 F 2 S 0 8 4 2 Main menu 25/Feb/2003 09:45 MIMIC Record Status Settings Test MIMIC 25/Feb/2003 09:45 When pressing the L/R key to enter into “Local” control mode, the following password trap screen is displayed. MIMIC 25/Feb/2003 09:45 MIMIC 25/Feb/2003 09:45 Password [...
Page 326 6 F 2 S 0 8 4 2 Status 25/Feb/2003 09:45 Metering Relay element Condition monitoring Binary I/O Information Status-Metering 25/Feb/2003 09:45 Status-Metering 25/Feb/2003 09:45 Current Current ***.**kV −***.*° Ia ******A −***.*° Demand ***.**kV −***.*° Ia ******A −***.*° ***.**kV −***.*° Ia ******A −***.*°...
Page 327 6 F 2 S 0 8 4 2 Settings menu 25/Feb/2003 09:45 Protection : Password trap Control Record Status Main menu 25/Feb/2003 09:45 Time MIMIC Communication Record Password Status Panel Settings Others Test Password[ <0123456789 Settings-Protection 25/Feb/2003 09:45 Change active group Change settings Copy group Settings-Protection...
Page 328 6 F 2 S 0 8 4 2 Settings-Protection 25/Feb/2003 09:45 Group1-EF EF1EN ##.#A ##.#A MEF1 **** **** TEF1D ###.##s ###.##s MEF1C-IEC *** TEF1P #.### #.### Settings-Protection 25/Feb/2003 09:45 Group1-DEF −##° −##° DEFθ DEFV ###.#V ###.#V DEF1EN DEF1 ##.##A ##.##A Settings-Protection 25/Feb/2003 09:45 Group1-SEF...
Page 329 6 F 2 S 0 8 4 2 Settings-Protection 25/Feb/2003 09:45 Group1-FRQ FRQ1EN FRQ4EN FRQ1 ##.##Hz ##.##Hz FRQ4 ##.##Hz ##.##Hz TFRQ1 ###.##s ###.##s TFRQ4 ###.##s ###.##s Settings-Protection 25/Feb/2003 09:45 Group1-ARC ARCEN ARCEN-S ARCEN-C Settings-Protection 25/Feb/2003 09:45 Group1-Sync CHK ###.#V ###.#V ###.#V ###.#V ###.#V ###.#V Settings-Protection...
Page 330 6 F 2 S 0 8 4 2 Settings-Record 25/Feb/2003 09:45 Fault record Disturbance record Counter Settings-Record 25/Feb/2003 09:45 Fault record Fault locator *** *** Settings-Record 25/Feb/2003 09:45 Disturbance record AI sampling Operation mode Record time ##.#s ##.#s Settings-Record 25/Feb/2003 09:45 Settings-Record 25/Feb/2003 09:45 Counter...
Page 331 6 F 2 S 0 8 4 2 Settings-Time 25/Feb/2003 09:45 Time sync source ******* ******* Sync adjustment -####ms -####ms Settings-Communication 25/Feb/2003 09:45 Front port Rear port Protocol Settings-Communication 25/Feb/2003 09:45 Front port 232C baut rate **** **** Settings-Communication 25/Feb/2003 09:45 Rear port CH1 Protocol ****** ******...
Page 332 6 F 2 S 0 8 4 2 Test menu 25/Feb/2003 09:45 : Password trap Switch Binary1 O/P Logic circuit Main menu 25/Feb/2003 09:45 MIMIC Record Status Settings Test Test-Switch 25/Feb/2003 09:45 Switch Password[ <0123456789 A.M.F. UV test THM test SHOT NUM CLP test Test mode ******...
Page 333 6 F 2 S 0 8 4 2 LCD AND BUTTON OPERATION INSTRUCTION MANUAL MODE 1. PRESS ARROW KEY TO MOVE TO EACH DISPLAYED ITEMS NORMAL 2. PRESS "END" KEY TO BACK TO PREVIOUS SCREEN (DISPLAY OFF) 1=MIMIC PRESS ANY BUTTON MENU EXCEPT FOR...
Page 334 6 F 2 S 0 8 4 2 Appendix F Case Outline ⎯ 333 ⎯...
Page 335 6 F 2 S 0 8 4 2 Cover IN SERVICE ALARM TRIP TESTING LOCAL VIEW SELECT REMOTE ENTER RESET CANSEL Front View Side view 4-φ5.5 TB 9 TB 7 TB 5 TB 3 190.5 TB 10 TB 8 TB 6 TB 4 TB 2 SPMM...
Page 336 6 F 2 S 0 8 4 2 Appendix G Typical External Connection ⎯ 335 ⎯...
Page 337 6 F 2 S 0 8 4 2 TB2-7 TB9- 1 12LEDs User Programmabl e 8LEDs Oscill.jacks IRIG-B ・・・・・ TB2-8 TB9- 2 TRP1 TB9-19 TB9- 3 TB4-18 TB1-11 TB9-20 TB9- 4 TB4-19 TRP2 TB10- 1 TB4-20 TB9- 5 DC/DC TB1-12 TB10- 2 Converter TB9- 6...
Page 338 6 F 2 S 0 8 4 2 CT connection TB1-1 TB1-1 TB1-2 TB1-2 TB1-3 TB1-3 TB1-4 TB1-4 TB1-5 TB1-5 TB1-6 TB1-6 TB1-7 TB1-7 TB1-8 TB1-8 TB1-9 TB1-9 Io for SEF TB1-10 TB1-10 [APPL-CT] = 3P Setting for Model 1∗∗ or 3∗∗ [APPL-CT] = 3P Setting for Model 2∗∗...
Page 339 6 F 2 S 0 8 4 2 VT connection TB1-11 TB1-11 TB1-12 TB1-12 TB1-13 TB1-13 TB1-14 TB1-14 TB1-15 TB1-15 TB1-16 TB1-16 TB1-17 TB1-17 TB1-18 TB1-18 [APPL-VT] = 3PN Setting for Model 1∗∗ or 2∗∗ [APPL-VT] = 3PV Setting for Model 1∗∗ or 2∗∗ TB1-11 TB1-11 TB1-12...
Page 340 6 F 2 S 0 8 4 2 Appendix H Relay Setting Sheet 1. Relay Identification 2. Line parameters 3. Binary input and output setting 4. Programmable LED setting 5. Relay setting sheet ⎯ 339 ⎯...
Page 341 6 F 2 S 0 8 4 2 1. Relay Identification Date: Relay type Serial Number Frequency AC current DC supply voltage Password Active setting group 2. Line parameter CT ratio SEF: VT ratio 3. Binary input and output setting Binary input BI10 BI10...
Page 342 6 F 2 S 0 8 4 2 Binary output TRP1 TRP1 TRP2 TRP2 TRP1 TRP1 TRP2 TRP2 4. Programmable LED setting LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED8 ⎯ 341 ⎯...
Page 343 6 F 2 S 0 8 4 2 5. Relay setting sheet Setting for Protection Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Standard Model With SEF With ARC Setting With SEF and ARC APPL-CT Off / 3P / 2P / 1P...
Page 344 6 F 2 S 0 8 4 2 Setting for Protection Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Standard Model With SEF With ARC With SEF and ARC Setting DOC2-TP1 Off / INST / SET DOC2 trip mode of 1st trip (if DOC2EN=On)
Page 345 6 F 2 S 0 8 4 2 Setting for Protection Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Standard Model With SEF With ARC Setting With SEF and ARC DEF2EN Off / On DEF2 Enable...
Page 346 6 F 2 S 0 8 4 2 Setting for Protection Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Standard Model With SEF With ARC With SEF and ARC Setting DSE1-TP1 Off / INST / SET DSEF1 trip mode of 1st trip (if DSE1EN=On)
Page 347 6 F 2 S 0 8 4 2 Setting for Protection Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Standard Model With SEF With ARC Setting With SEF and ARC 332 DFRQ DFRQ1EN Off / R / D...
Page 348 6 F 2 S 0 8 4 2 Setting for Protection Range Units Contents Def ault Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Standard Model With SEF With ARC Setting With SEF and ARC 0.2 - 250.0 0.04 - 50.00 EF2 Threshold setting (if EF2EN=On)
Page 349 6 F 2 S 0 8 4 2 Setting for Protection Range Units Contents Def ault Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Standard Model With SEF With ARC Setting With SEF and ARC 0.5 - 10.0 0.10 - 2.00 CBF Threshold setting (if CBFEN=On)
Page 350 6 F 2 S 0 8 4 2 Setting for Protection Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Standard Model With SEF With ARC With SEF and ARC Setting TRDY 0.0 - 600.0 Reclaim timer...
Page 351 6 F 2 S 0 8 4 2 Setting for Protection Range Units Contents Def ault Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Standard Model With SEF With ARC Setting With SEF and ARC DEF1-k 0.000 - 30.000 Conf igurable IDMT Curv e settig of DEF1.
Page 352 6 F 2 S 0 8 4 2 Setting for Control, Record, Status, Time, Communication, Passw ord, Panel, Others Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Setting Standard Model With SEF With ARC With SEF and ARC...
Page 353 6 F 2 S 0 8 4 2 Setting for Control, Record, Status, Time, Communication, Passw ord, Panel, Others Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Setting Standard Model With SEF With ARC With SEF and ARC...
Page 354 6 F 2 S 0 8 4 2 Setting for Control, Record, Status, Time, Communication, Passw ord, Panel, Others Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Setting Standard Model With SEF With ARC With SEF and ARC...
Page 355 6 F 2 S 0 8 4 2 Setting for Control, Record, Status, Time, Communication, Passw ord, Panel, Others Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Setting Standard Model With SEF With ARC With SEF and ARC...
Page 356 6 F 2 S 0 8 4 2 Setting for Control, Record, Status, Time, Communication, Passw ord, Panel, Others Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Setting Standard Model With SEF With ARC With SEF and ARC...
Page 357 6 F 2 S 0 8 4 2 Setting for Control, Record, Status, Time, Communication, Passw ord, Panel, Others Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Setting Standard Model With SEF With ARC With SEF and ARC...
Page 358 6 F 2 S 0 8 4 2 Setting for Control, Record, Status, Time, Communication, Passw ord, Panel, Others Range Units Contents Default Setting of Relay Series(5A rating / 1A rating) Name User 5A rating 1A rating Setting Standard Model With SEF With ARC With SEF and ARC...
Page 359 6 F 2 S 0 8 4 2 PLC Default Setting (User cycle is 500ms.) O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er №...
Page 360 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 361 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 362 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 363 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 364 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 365 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 366 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 367 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 368 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 369 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 370 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 371 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 372 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 373 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 374 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 375 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 376 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 377 6 F 2 S 0 8 4 2 O utput T im ing Logic expression T im er / F lip F lop C ycle T urn F lip F lop T im er № N am e N one B ack O ff O ne...
Page 378 6 F 2 S 0 8 4 2 O utput Tim ing Logic expression Tim er / Flip Flop Cycle Turn Flip Flop Tim er № Nam e N one Back O ff O ne 90 User Norm Signal to reset Tim e Value Delay D elay...
Page 379 6 F 2 S 0 8 4 2 Disturbance record default setting Model Model Model Model Name Range Signal name Signal name Signal name Signal name SIG1 0 - 3071 621 DOC1-A OP 621 DOC1-A OP 621 DOC1-A OP 621 DOC1-A OP SIG2 0 - 3071 622 DOC1-B OP...
Page 380 6 F 2 S 0 8 4 2 Event record default setting Model Model Model Model Event Range Event name Event name Event name Event name 0 - 3071 GEN.TRIP GEN.TRIP GEN.TRIP GEN.TRIP 0 - 3071 DOC1-A_OP DOC1-A_OP DOC1-A_OP DOC1-A_OP 0 - 3071 DOC1-B_OP DOC1-B_OP...
Page 381 6 F 2 S 0 8 4 2 Event record default setting Model Model Model Model Event Range Event name Event name Event name Event name 0 - 3071 0 - 3071 0 - 3071 0 - 3071 0 - 3071 0 - 3071 0 - 3071 0 - 3071...
Page 382 6 F 2 S 0 8 4 2 Appendix I Commissioning Test Sheet (sample) 1. Relay identification 2. Preliminary check 3. Hardware check 3.1 User interface check 3.2 Binary input/binary output circuit check 3.3 AC input circuit 4. Function test 4.1 Overcurrent elements test 4.2 BCD element check 4.3 Cold load function check...
Page 383 6 F 2 S 0 8 4 2 Relay identification Type Serial number Model System frequency Station Date Circuit Engineer Protection scheme Witness Active settings group number Preliminary check Ratings CT shorting contacts DC power supply Power up Wiring Relay inoperative alarm contact Calendar and clock Hardware check...
Page 384 6 F 2 S 0 8 4 2 Function test 4.1 Overcurrent elements test Element Current Measured Element Current Measured setting current setting current OC1-A SEF3 OC2-A SEF4 OC3-A UC1-A OC4-A UC2-A THM-A THM-T NOC1 NOC2 SEF1 SEF2 CBF-A Operating time test (IDMT) Element Curve setting Multiplier setting...
Page 385 6 F 2 S 0 8 4 2 4.5 Directional element check Element Setting Measured current DOC1 DEF1 DSEF1 DNOC1 4.6 Frequency element test Measured Measured Element Setting Element Setting frequency frequency FRQ1 FRQ4 FRQ2 FRQ5 FRQ3 FRQ6 4.7 Synchronism check test (1) Voltage check element Element Setting...
Page 386 6 F 2 S 0 8 4 2 Appendix J Return Repair Form ⎯ 385 ⎯...
Page 387 6 F 2 S 0 8 4 2 RETURN / REPAIR FORM Please fill in this form and return it to Toshiba Corporation with the GRD150 to be repaired. TOSHIBA CORPORATION FUCHU COMPLEX 1,Toshiba-cho, Fuchu-shi, Tokyo, Japan For: Power Systems Protection & Control Department...
Page 388 6 F 2 S 0 8 4 2 Fault Record Date/Month/Year Time (Example: 04/ Jul./ 2003 15:09:58.442) Faulty phase: Prefault values I a : I b : I c : I e : I se : Vab: Vbc: Vca: Fault values I a : I b : I c :...
Page 389 6 F 2 S 0 8 4 2 What was the message on the LCD display at the time of the incident? Describe the details of the incident: Date incident occurred Day/Month/Year: (Example: 10/July/2003) Give any comments about the GRD150, including the documents: ⎯...
Page 390 6 F 2 S 0 8 4 2 Customer Name: Company Name: Address: Telephone No.: Facsimile No.: Signature: ⎯ 389 ⎯...
Page 391 6 F 2 S 0 8 4 2 ⎯ 390 ⎯...
Page 392 6 F 2 S 0 8 4 2 Appendix K Technical Data ⎯ 391 ⎯...
Page 393 6 F 2 S 0 8 4 2 TECHNICAL DATA Ratings AC current In 1A or 5A AC voltage Vn: 100V, 110V, 115V, 120V Frequency: 50Hz or 60Hz DC auxiliary supply: 110/125Vdc (Operative range: 88 – 150Vdc), 220/250Vdc (Operative range: 176 – 300Vdc), 48/54/60Vdc (Operative range: 38.4 –...
Page 394 6 F 2 S 0 8 4 2 Directional Earth Fault Protection DEF 1 Overcurrent threshold: OFF, 0.01 – 5.00A in 0.01A steps (1A rating) OFF, 0.05 – 25.00A in 0.01A steps (5A rating) DEF 2 Overcurrent threshold: OFF, 0.04 – 50.00A in 0.01A steps (1A rating) OFF, 0.2 –...
Page 395 6 F 2 S 0 8 4 2 Non-directional Phase Overcurrent Protection OC 1 Overcurrent threshold: OFF, 0.04 – 5.00A in 0.01A steps (1A rating) OFF, 0.2 – 25.0A in 0.1A steps (5A rating) OC 2 Overcurrent threshold: OFF, 0.10 – 50.00A in 0.01A steps (1A rating) OFF, 0.5 –...
Page 396 6 F 2 S 0 8 4 2 Non-directional Negative Phase Sequence Overcurrent Protection NOC 1 overcurrent threshold: OFF, 0.10 – 2.00A in 0.01A steps (1A rating) OFF, 0.5 – 10.0A in 0.1A steps (5A rating) Delay type (1 threshold only): DTL, IEC NI, IEC VI, IEC EI, UK LTI, IEEE MI, IEEE VI, IEEE EI, US CO8 I, US CO2 STI, User SI IDMTL Time Multiplier Setting TMS:...
Page 397 6 F 2 S 0 8 4 2 Phase Undercurrent Protection Undercurrent 1 threshold: OFF, 0.10 – 2.00A in 0.01A steps (1A rating) OFF, 0.5 – 10.0A in 0.1A steps (5A rating) DTL Delay: 0.00 – 300.00s in 0.01s steps Broken Conductor Protection Broken conductor threshold (I OFF, 0.10 –...
Page 398 6 F 2 S 0 8 4 2 Control and Monitoring Function Control devices Control input Circuit breaker × 1, Interlock setting Disconnector × 5, Interlock bypass setting Earthing disconnector switch × 2 Operate time counter, Breaker travel time, Double command blocking, Control blocking Disturbance record Analogue input...
Page 399 6 F 2 S 0 8 4 2 Mechanical design Weight 8.9 kg (Standard model) Case color 2.5Y7.5/1(approximation to Munsell value) Installation Flush mounting Connection terminals TB1: M3.5 Ring terminal TB2 – TB10: Phoenix Contact, UK MSTB Direct cable connection: AWG24 to AWG12 recommended, stripping length is 10mm.
Page 400 6 F 2 S 0 8 4 2 Test Standards Details Conducted RF IEC60255-22-6, 10Vrms applied over frequency range 150kHz to 100MHz. Additional spot tests at 27 and 68MHz. Electromagnetic IEC61000-4-6 Disturbance Conducted IEC61000-4-16 Class 3 Varying voltages applied in common mode as follows: 15Hz to 150Hz: 10V →...
Page 401 6 F 2 S 0 8 4 2 ⎯ 400 ⎯...
Page 402 6 F 2 S 0 8 4 2 Appendix L Symbols Used in Scheme Logic ⎯ 401 ⎯...
Page 403 6 F 2 S 0 8 4 2 Symbols used in the scheme logic and their meanings are as follows: Signal names Marked with : Measuring element output signal Marked with : Signal number Marked with : Signal number and name of binary input by PLC function Signal No.
Page 404 6 F 2 S 0 8 4 2 Signal inversion Output Output Timer Delayed pick-up timer with fixed setting XXX: Set time Delayed drop-off timer with fixed setting XXX: Set time Delayed pick-up timer with variable setting XXX - YYY: Setting range XXX - YYY Delayed drop-off timer with variable setting...
Page 405 6 F 2 S 0 8 4 2 Switch Output Output ⎯ 404 ⎯...
Page 406 6 F 2 S 0 8 4 2 Appendix M IEC60870-5-103: Interoperability ⎯ 405 ⎯...
Page 407 6 F 2 S 0 8 4 2 IEC60870-5-103 Configurator IEC103 configurator software is included in a same CD as RSM100, and can be installed easily as follows: Installation of IEC103 Configurator Insert the CD-ROM (RSM100) into a CDROM drive to install this software on a PC. Double click the “Setup.exe”...
Page 408 6 F 2 S 0 8 4 2 Common setting • Transmission cycle of Measurand frame • FUN of System function • Test mode, etc. Note: To be effective the setting data written via the RS232C, turn off the DC supply of the relay and turn on again.
Page 409 6 F 2 S 0 8 4 2 List of Information IEC103 Configurator Default setting Description Contents Type Signal No. OFF Standard Information numbers in monitor direction System Function End of General Interrogation Transmission completion of GI items. Time Synchronization Time Synchronization ACK.
Page 410 6 F 2 S 0 8 4 2 IEC103 Configurator Default setting Description Contents Type Signal NO. OFF Fault Indications Start/pick-up L1 A phase, A-B phase or C-A phase element pick-up No set Start/pick-up L2 B phase, A-B phase or B-C phase element pick-up No set Start/pick-up L3 C phase, B-C phase or C-A phase element pick-up...
Page 411 6 F 2 S 0 8 4 2 IEC103 configurator Default setting Description Contents Type Max. No. Measurands Measurand I <meaurand I> Measurand I,V <meaurand I> Measurand I,V,P,Q <meaurand I> Measurand IN,VEN <meaurand I> Measurand IL1,2,3, VL1,2,3, Ia, Ib, Ic, Va, Vb, Vc, P, Q, f measurand <meaurand II> 2, 7 P,Q,f Generic Function...
Page 412 6 F 2 S 0 8 4 2 IEC103 Configurator Default setting Description Contents Control Type ID direction Selection of standard information numbers in control direction System functions Initiation of general interrogation Time synchronization General commands Auto-recloser on/off ON/OFF Teleprotection on/off Not supported Protection on/off (*1)
Page 413 6 F 2 S 0 8 4 2 GRD150 Description Contents Comment supported Basic application functions Test mode Blocking of monitor direction Disturbance data Generic services Private data Miscellaneous Max. MVAL = rated Measurand value times Current L1 Configurable Current L2 Configurable Current L3 Configurable...
Page 414 6 F 2 S 0 8 4 2 [Legend] GI: General Interrogation (refer to IEC60870-5-103 section 7.4.3) Type ID: Type Identification (refer to IEC60870-5-103 section 7.2.1) 1 : time-tagged message 2 : time-tagged message with relative time 3 : measurands I 4 : time-tagged measurands with relative time 5 : identification 6 : time synchronization...
Page 415 6 F 2 S 0 8 4 2 IEC103 setting data is recommended to be saved as follows: (1) Naming for IEC103setting data The file extension of IEC103 setting data is “.csv”. The version name is recommended to be provided with a revision number in order to be changed in future as follows: ∗∗∗∗∗∗_01.csv First draft: ∗∗∗∗∗∗_02.csv...
Page 416 6 F 2 S 0 8 4 2 Troubleshooting Phenomena Supposed causes Check / Confirmation Object Procedure Communication Address setting is incorrect. Match address setting between BCU and relay. trouble (IEC103 Avoid duplication of address with other relay. communication is Transmission baud rate setting is Match transmission baud rate setting between not available.)
Page 417 6 F 2 S 0 8 4 2 Phenomena Supposed causes Check / Confirmation Object Procedure HMI does not The relevant event sending condition is Change the event sending condition (signal display IEC103 not valid. number) of IEC103 configurator if there is a event on the SAS setting error.
Page 418 6 F 2 S 0 8 4 2 Appendix N Inverse Time Characteristics ⎯ 417 ⎯...
Page 419 6 F 2 S 0 8 4 2 IEC/UK Inverse Curves (VI) IEC/UK Inverse Curves (NI) (Time Multiplier TMS = 0.1 - 1.5) (Time Multiplier TMS = 0.1 - 1.5) 0.01 Current (Multiple of Setting) Current (Multiple of Setting) Normal Inverse Very Inverse ⎯...
Page 420 6 F 2 S 0 8 4 2 IEC/UK Inverse Curves (EI) (Time Multiplier TMS = 0.1 - 1.5) 1000 UK Inverse Curves (LTI) (Time Multiplier TMS = 0.1 - 1.5) 1000 0.01 Current (Multiple of Setting) Current (Multiple of Setting) Extremely Inverse Long Time Inverse ⎯...
Page 421 6 F 2 S 0 8 4 2 IEEE Inverse Curves (MI) IEEE Inverse Curves (VI) (Time Multiplier TMS = 0.1 - 1.5) (Time Multiplier TMS = 0.1 - 1.5) 0.01 0.01 Current (Multiple of Setting) Current (Multiple of Setting) Moderately Inverse Very Inverse ⎯...
Page 422 6 F 2 S 0 8 4 2 IEEE Inverse Curves (EI) (Time Multiplier TMS = 0.1 - 1.5) 0.01 Current (Multiple of Setting) Extremely Inverse ⎯ 421 ⎯...
Page 423 6 F 2 S 0 8 4 2 US Inverse Curves (CO8) US Inverse Curves (CO2) (Time Multiplier TMS = 0.1 - 1.5) (Time Multiplier TMS = 0.1 - 1.5) 0.01 0.01 Current (Multiple of Setting) Current (Multiple of Setting) CO8 Inverse CO2 Short Time Inverse ⎯...
Page 424 6 F 2 S 0 8 4 2 Appendix O Ordering ⎯ 423 ⎯...
Page 425 6 F 2 S 0 8 4 2 ORDERING − Configurations Basic Standard model with integral Sensitive Earth Fault function (SEF) with integral Synchronism check, Auto Reclose function with integral SEF & Synchronism check, Auto Reclose function MIMIC panel fixed on the front BI/BO Module BI ≤...
Page 426 6 F 2 S 0 8 4 2 Version-up Records Version Date Revised Section Contents Jul. 21, 2005 First issue. Aug. 23, 2005 Modified the description and Table 1.1.1. (Added DFRQ element.) 2.1.4 Added the description of ‘Note’. Modified the description. (Added DFRQ element.) Modified the description.

Toshiba GRD150 Series Instruction Manual

Quick Links

Related Manuals for Toshiba GRD150 Series

Summary of Contents for Toshiba GRD150 Series