ABB REL 301 Instruction Leaflet
  1. Manuals
  2. Brands
  3. ABB Manuals
  4. Switch
  5. REL 301
  6. Instruction leaflet
ABB REL 301 Instruction Leaflet

ABB REL 301 Instruction Leaflet

Numerical distance relay
Hide thumbs Also See for REL 301:
Table of Contents

Advertisement

Quick Links

Effective: April, 1996
New Information
ABB Network Partner
ABB Automation, Inc.
Substation Automation & Protection Division
Coral Springs, FL
Allentown, PA
REL 301/302
Numerical Distance Relay
Instruction Leaflet
40-386.4
Version 1.4

Advertisement

Table of Contents
loading

Related Manuals for ABB REL 301

Summary of Contents for ABB REL 301

  • Page 1 ABB Automation, Inc. Instruction Leaflet Substation Automation & Protection Division 40-386.4 Coral Springs, FL Allentown, PA Effective: April, 1996 REL 301/302 Version 1.4 New Information Numerical Distance Relay ABB Network Partner...
  • Page 2 I.L. 40-386.4 REL301/302 REVISION NOTICE DATE REV LEVEL PAGES REMOVED PAGES INSERTED 4/96 RELEASED CHANGE SUMMARY: A CHANGE BAR ( ) LOCATED IN THE MARGIN INDICATES A CHANGE TO THE TECHNICAL CONTENT...
  • Page 3 Electrostatic discharge precautions should be observed when handling modules or individual components. ABB does not assume liability arising out of the application or use of any product or circuit described herein. ABB reserves the right to make changes to any products herein to improve reliability, function or design. Spec- ifications and information herein are subject to change without notice.
  • Page 4 I.L. 40-386.4 PREFACE Scope This manual describes the functions and features of the REL301(Non-pilot Relay System) and REL302 (Pilot Relay System). It is intended primarily for use by engineers and technicians involved in the installation, testing, operation and maintenance of the REL301/302 system. Equipment Identification The REL301/302 equipment is identified by the Catalog Number on the REL301/302 chassis nameplate.

  • Page 5: Table Of Contents

    ABB Bulletin Board ........
  • Page 6 I.L. 40-386.4 ECTION 2.3.2 Zone-2 Trip ............. 2-3 2.3.3 Zone-3 Trip .
  • Page 7 I.L. 40-386.4 ECTION 2. 6 PROGRAMMABLE CONTACT OUTPUTS ..........2-22 SECTION 3: SETTINGS CALCULATIONS 3.1.
  • Page 8 I.L. 40-386.4 ECTION 3.3.26 Load Loss Trip Setting (LL Trip) ..........3-15 3.3.27 Loss of Potential Block Setting (LOP Blk) .
  • Page 9 I.L. 40-386.4 ECTION SECTION 5: REL301/302 ACCEPTANCE TEST AND MAINTENANCE PROCEDURES 5. 1. NON-PILOT ACCEPTANCE TESTS FOR REL301/302 ........5-3 5.1.1 Front Panel Man-Machine-Interface (MMI) Test .
  • Page 10 I.L. 40-386.4 LIST OF FIGURES Section Number Page Number Section 1 REL301/302 Relay Assembly in FT-42 Case (photo) ......1-1 REL301/302 Layout (Vertical) (sheet 1 of 2) .
  • Page 11 I.L. 40-386.4 ECTION UMBER UMBER CO-7 Curve Characteristics ..........2-43 CO-8 Curve Characteristics .
  • Page 12 I.L. 40-386.4 TABLES ECTION UMBER UMBER Section 2 Phase and Ground Settings (5 Tables) ........2-4, 2-5 Section 3 Trip Time Constants for Curves.
  • Page 13 I.L. 40-386.4 REL301 and 302 Version 1.4 FEATURES ADDED AND IMPROVEMENTS MADE TO VERSION 1.12 1. REL 301 and 320 Added a signal (3V0T) which can be used by the programmable logic for zero sequence voltage detection. The signal (V ) produces an output when 3V 105 volts.
  • Page 14 I.L. 40-386.4 REL301 and 302 Version 1.12 FEATURES ADDED AND IMPROVEMENTS MADE TO VERSION 1.11 REL301 and 302 Changed 3Vo sensitivity from 3 volts to 1 volt for the directional units in order to increase the sensitivity for zone-2 and zone-3. Changed the loss of current blocking (“LOI Blk”) timer from 0.5/0.5 to 10/0.5 seconds in order to prevent blocking of zone-2 ground distance, zone-3 ground distance for settings of “T2G”...

  • Page 16: Rel301/302 Features

    I.L. 40-386.4 1. 2. REL301/302 FEATURES Standard Features for REL301 (Non-Pilot) 1.2.1 • 100% Numerical processing • 3-Zone distance phase and ground relay, with reversible Zone-3 phase and ground; 4 imped- ance units per zone: 3 phase-to-ground; 1 phase-to-phase. • T1 timer (0 to 15 cycles) •...

  • Page 17: Standard Features For Rel302 (Pilot)

    I.L. 40-386.4 Standard Features for REL302 (Pilot) 1.2.2 • All features listed as standard for the REL301 are also standard in the REL302 • Independent pilot zone phase and ground distance units • Permissive Overreach Transfer Trip (POTT) /Simplified Unblocking Logic •...

  • Page 18: Rel301/302 Inner Chassis

    I.L. 40-386.4 1.3.2 REL301/302 Inner Chassis The inner chassis (Figure 1-5) consists of a frame, 2 switchjaws and the following modules. Each module is identified by silk screen label. • PT Module: Consisting of 3 voltage transformers for V and V •...

  • Page 19: Fault Mode And Restricted Fault Tests

    I.L. 40-386.4 of the checks are broken into small parcels, so that the whole complement of tasks is performed over a one-cycle period (eight passes through the loop). Some checks are performed more than once per cycle (e.g. critical timers). The REL301/302 sampling software has 8 states;...

  • Page 20: Self-Checking Software

    Refer to RCP instruction manual, I.L. 40-603, for detailed information. 1.5.1 ABB Bulletin Board The ABB Relay Division Bulletin Board (BBS) is now on line. To obtain the latest version of RCP software, please call the ABB BBS via modem at: (800) 338-0581 or (954) 755-3250 Using configuration settings 300-14,400 bits/second, 8 data bits, 1 stop bit, no parity and full...

  • Page 21: Specifications

    I.L. 40-386.4 1. 6. SPECIFICATIONS 1.6.1 Technical Operating Speed 12 msec (minimum) (from fault detection to trip contact close (60 Hz) 26 msec (typical) ac Voltage (V 60 Hz 70 Volt rms 50 Hz 63.5 Volt rms 1 or 5 Amp ac Current (I 50 or 60 Hz Rated Frequency...

  • Page 22: Chassis Dimensions And Weight

    I.L. 40-386.4 All contacts support 1000 Vac across open contacts Contacts also meet applicable standards: IEC - 255-6A, IEC - 255-12, IEC -255-16, BS142-1982. 1.6.4 Chassis Dimensions And Weight Height: 17.875" (453.7 mm) Width: 5.876" (149 mm) Depth: 6.626" (168 mm) Weight: 24 lb (16 kg.)

  • Page 23: Rel301/302 Catalog Numbers

    I.L. 40-386.4 1.6.6 REL301/302 Catalog Numbers M V 3 B 1 R N 1 C L MOUNTING Horizontal - - - - - - - - - - - - - - - - - - - - - - - - H Vertical- - - - - - - - - - - - - - - - - - - - - - - - - - V TRIP 3-Pole Trip - - - - - - - - - - - - - - - - - - - - - - - - 3...
  • Page 24 *Sub 2 2682F39 Sheet 1 of 2 Figure 1-2. REL301/302 Layout. (Vertical)
  • Page 25 8-32 FILLISTER HEAD SCREW (4 SUPPLIED) *Sub 2 2682F39 Sheet 2 of 2 Figure 1-3. REL301/302 Layout. (Horizontal)

  • Page 28: Rel301/302 Relay Program Functions

    I.L. 40-386.4 -Initialization Mode = POWER -Self-Checks Background START Sample V and I dc Offset Correction Compute V and I Phasors Using Fourier Algorithm Mode? Fault Relaying Calculations: Zone-1 and Pilot Zone Background Pilot Logic and Channel Control Disturbance Ι? Mode = ∆...

  • Page 29: Functional Description

    I.L. 40-386.4 Section 2. FUNCTIONAL DESCRIPTION 2. 1 INTRODUCTION Both the REL301/302 relay systems detect faults in three zones of phase and ground distance. Zones 1 and 2 are forward set, Zone-3 can be set forward or reverse. REL302 has a separate pilot zone (see Section 2-5).

  • Page 30: Three-Phase Fault

    I.L. 40-386.4 where V , or V or I Positive and zero sequence line impedance in secondary ohms. 1/3(I Zone reach setting (“Zone1 G”, “Zone2 G”, “Zone3 G” and “Pilot G”) in secondary ohms for ØG fault Quadrature phase voltages, V and V for ØA, ØB and ØC units, respectively.

  • Page 31: Zone-1 Trip

    I.L. 40-386.4 2.3.1 Zone-1 Trip (Figure 2-5) For Zone-1 phase faults, the Z1P units will identify the fault and operate. The 3Ø fault logic is supervised by the load restriction logic via AND131C at AND 131. Oversight of zone-1 3Ø trip logic, via AND 131, includes supervision by the selectable out-of-step blocking (OSB) logic (see Section 2.4.16) and directional supervised, by the Forward Directional Overcurrent Phase units (FDOPA, FDOPB and FDOPC) for more security during close-in faults.
  • Page 32 I.L. 40-386.4 *Note: the curves commonly used with electromechanical (e/m) overcurrent relays are a com- posite, average result of considerable testing. Overcurrent characteristics utilized in the REL301/302 are the result of calculations which do not exactly emulate e/m overcurrent relay characteristics.

  • Page 33: Zone-3 Trip

    I.L. 40-386.4 If “T2Ø Type” and/or “T2G Type” are selected as “Torque Control” then Tables 3, 4 and 5 settings apply: Table 3: T2ø CV C0-2; C0-5; C0-6; C0-7; C0-8; C0-9; C0-11 Reset or Instant T2G CV Table 4: T2ø PkUp 0.50 to 10.00 Amps T2G PkUp 0.50 to 10.00 Amps...

  • Page 34: Zone-1 Extension

    I.L. 40-386.4 2.3.4 Zone-1 Extension (Figure 2-8) This scheme provides a higher speed operation on end zone-faults without the application of a pilot channel. If the REL301/302 “SystType” setting is set to “Zone-1 Extension”, the zone-1 phase/zone-1 ground (Z1P/Z1G) unit will provide two outputs; one is overreach which is set at 1.25 x Z1 reach by the microprocessor, and one is the normal Z1 reach.

  • Page 35: Loss Of Potential Supervision

    I.L. 40-386.4 Note: The curves commonly used with electromechanical (e/m) overcurrent relays are a composite, average result of considerable testing. Overcurrent characteristics utilized in the REL301/302 are the result of calculations which do not exactly em- ulate e/m overcurrent relay characteristics. Also it should be noted that the time dial setting differs from e/m overcurrent relays.

  • Page 36: Loss Of Current Supervision (Loi)

    I.L. 40-386.4 2.4.4 Loss of Current Supervision (Figure 2-12) The ac current monitoring circuit uses IOM and NOT Vo as criterion, as shown. Under ct short circuit or open circuit condition, IOM and NOT Vo satisfies AND 23; the output signal of AND 23 starts the 10/0.5 second timer.

  • Page 37: Unequal-Pole-Closing-Load Pickup Logic

    I.L. 40-386.4 and a common set of voltage transformers. Each relay trips the main breaker and the power transformer secondary breaker, for faults on the line section being protected (e.g. relay #2 trips 52 and 52-2). Classic close into fault logic produced false tripping of one secondary breaker (transformer on the unfaulted line section) upon reclosing after a trip, if the fault persisted.

  • Page 38: Current Or Voltage Change Fault Detector (∆I, ∆V)

    I.L. 40-386.4 pending on the type of fault. The AND 24 output signal changes from “1” to “0” and satisfies AND 25. After 10 milliseconds, this output by-passes the remaining T2 timer, and provides accelerat- ed Zone-2 trip. The (10/0 millisecond) time delay is for coordination on external faults with un- equal pole clearing.

  • Page 39: Instantaneous Reverse Directional Overcurrent Ground (Rdog)

    I.L. 40-386.4 2.4.13 Instantaneous Reverse Directional Overcurrent Ground (RDOG) Similar to FDOG, the instantaneous reverse directional overcurrent ground function (RDOG) su- pervises the ground units to prevent false tripping. 2.4.14 Programmable Reclose Initiation and Reclose Block Logic (Figure 2-18) The REL301/302 system provides the following contact output for Reclosing Initiation and re- closing block functions: •...

  • Page 40: Output Contact Test

    I.L. 40-386.4 2.4.15 Output Contact Test A “Push-to-Close” feature is included in order to check all output relay contacts, which include TRIP, BFI, RI2, RB, AL1, AL2, GS, Carrier Send (Pilot), Carrier Stop (Pilot) and each program- mable contact output (if supplied). The relay contact check is supplementary to the self-check because the Microprocessor self-check routine cannot check the output hardware.

  • Page 41: Fault And Oscillographic Data

    I.L. 40-386.4 2.4.17 Fault and Oscillographic Data The following sections explain the mechanisms for data capture and retrieval. As mentioned in Section 1.5, communication port access requires Remote Communications Program (RCP) software. 2.4.17.1 Fault Data REL301/302 systems capture the latest sixteen fault data records in non-volatile memory. That is, all records are saved even if control power is removed from the system.

  • Page 42: Rel302 Pilot System

    I.L. 40-386.4 “Zone-2” – data taken if Zone-2 units pick up or any trip action occurs “Zone-2, Zone-3” – data taken if Zone-2 or Zone-3 units pick up, or any trip action occurs. “dV or dI” – data taken if DI, DV, Zone-2 or Zone-3 units pick up, or any trip action occurs NOTE: See Section 2.4.10 for ∆V ∆...
  • Page 43 I.L. 40-386.4 The basic operating concepts of a Simplified Unblocking scheme are the same as the POTT scheme, except for differences in applied pilot channel equipment. In an unblocking scheme, the pilot channel is a frequency-shift type power line carrier. The transmitter frequency must be dif- ferent at each terminal.
  • Page 44 I.L. 40-386.4 34B (ECHO) which will cause a SEND signal via OR 18. This echo keying will be continue for 150 millisecond or less if any inputs to AND 34B change state (e.g. receive input stops). (3) Signal Continuation This logic includes an input from the TRSL signal and a 0/150 millisecond (ms) timer. The 0/150 ms signal continuation time is required to keep the local transmitter at the trip fre- quency (or unblock frequency) for 150 ms after the local end high speed trips which includes pilot trip, zone-1 trip, and high-set overcurrent trip, in case of sequential trip on the...

  • Page 45: Permissive Underreach Transfer Trip

    I.L. 40-386.4 Programmable Reclosing Initiation (Figure 2-18) The basic programmable reclose initiation application is as described in Section 2.4.14. How- ever, on pilot systems, to activate the reclose initiate output RI2, for any high-speed trip, the EXT. PILOT ENABLE SW. (Figure 2-18) must be satisfied, and the setting “FAST RI” should be set to “Pilot/Z1/Inst I”.

  • Page 46: Directional Comparison Blocking

    I.L. 40-386.4 2.5.1.3 Directional Comparison Blocking (Figure 2-24) If a directional comparison blocking (Blocking) system is desired, the system type setting “Syst Type”, is set to “Blocking”. Refer to Section 2.5.1 for other recommended settings for Blocking systems. Basic operating concepts of a Blocking system are: 1) Pilot distance measurement units PLTP and PLTG (“Pilot Ø”...
  • Page 47 I.L. 40-386.4 4) Since the present keying practice on carrier systems use either the contact open (negative or positive removal keying) or contact close (positive keying) approach, a form-C dry con- tact output for SEND is provided in REL302. 5) Signal continuation and TBM logic For a reverse fault, both the local carrier start relay(s) and the remote pilot relay(s) detect the fault and operate.

  • Page 48: Pilot Ground Overcurrent

    I.L. 40-386.4 2.5.2 Pilot Ground Overcurrent Pilot Ground Overcurrent Supplement is added for high resistance faults and improves security on POTT/unblocking schemes on some special power system conditions, such as shown in Fig- ure 2-25. A ØØG fault is on the paralleled line section. Due to the system condition, fault current flowing in the protected line would be I1+I2 from A to B, and Io from B to A.

  • Page 49: 3-Terminal Line Application

    I.L. 40-386.4 2.5.5 3-terminal Line Application For Blocking 3-terminal line applications, since the frequency of the 3 transmitters are the same, any one transmitter starting will block the pilot system from tripping, therefore, logic for the 3-ter- minal pilot system would be the same as that used for the 2-terminal system. However, for POTT/Unblock and PUTT systems, since the transmitter frequencies are different at each ter- minal, logic for the second receiver (RCVR-2) is added to the system when the application in- volves 3-terminal lines.

  • Page 50: Weakfeed System Application

    I.L. 40-386.4 permission is received from the weak terminal. The pilot trip relay(s) at the weak terminal cannot operate since there is insufficient fault energy, and does not perform the normal key- ing function. With one weakfeed condition, when the weak end receives a permissive (or unblocking) signal, the output from the receiver operates the echo key logic via AND 65A, providing both pilot relay (from OR 40) and reverse logic (from REVERSE BLOCK LOGIC) have not operated and if system disturbance is detected (∆V or∆I).

  • Page 51: Mho Characteristic For Phase-To-Ground Faults

    I.L. 40-386.4 Sub 3 9651A57 Figure 2-1. REL301/302 Characteristics/R-X Diagram Sub 2 9654A13 Figure 2-2. Mho Characteristic for Phase-to-Ground Faults 2-23...

  • Page 52: Mho Characteristics For Three-Phase Faults

    I.L. 40-386.4 Sub 1 9654A14 Figure 2-3. Mho Characteristics for Three-Phase Faults (No Load Flow) Sub 1 9654A15 Figure 2-4. Mho Characteristics for Phase-to-Phase and Two Phase-to-Ground Faults (No Load Flow) 2-24...

  • Page 53: Logic Drawing Symbols

    I.L. 40-386.4 INPUTS OUTPUT ELECTROMECHANICAL  CONTACT EQUIVALENT  INPUTS OUTPUT  SIGNAL ON ALL INPUTS REQUIRED TO PROVIDE AN OUTPUT Notes: I – Active state of a signal (may be defined as positive or negative voltage or current) 0 – Inactive state of a signal (reference) –...
  • Page 54 I.L. 40-386.4 * Sub 2 9657A49 Figure 2-5. Zone-1 Trip Logic *Sub 2 9657A50 Figure 2-6. Zone-2 Trip Logic Denotes Change 2-26...
  • Page 55 I.L. 40-386.4 * Sub 2 1503B49 Figure 2-7. Zone-3 Trip Logic *Sub 1 9662A64 igure 2-8. Zone-1 Extension Scheme 2-27...

  • Page 56: Inverse Time Overcurrent Ground Backup Logic

    I.L. 40-386.4 * Sub 1 9657A61 Figure 2-9. Inverse Time Overcurrent Ground Backup Logic * Sub 1 Figure 2-10. Loss-of-Potential Logic 9662A65 2-28...

  • Page 57: Loss-Of-Potential Logic (System Diagram)

    I.L. 40-386.4 Sub 1 9654A18 Figure 2-11. Loss-of-Potential Logic (System Diagram) * Sub 2 9657A54 Figure 2-12. Loss of Current Monitoring Logic 2-29...

  • Page 58: Overcurrent Supervision

    I.L. 40-386.4 * Sub 1 9662A66 Figure 2-13. Overcurrent Supervision Sub 1 9657A58 Figure 2-14. Instantaneous Overcurrent Highset Trip Logic 2-30...

  • Page 59: Rel301/302 Close-Into- Fault Trip (Cift) Logic

    I.L. 40-386.4 Sub 2 9657A55 Figure 2-15a. REL301/302 Close-Into-Fault Trip (CIFT) Logic * Sub 2 9661A32 Figure 2-15b. Special Application for CIF Logic with Time Delay Pickup * Sub 2 9657A56 igure 2-16. Unequal-Pole-Closing/Load Pickup Trip Logic & Reverse Block (TBM) Logic 2-31...

  • Page 60: Load Loss Accelerated Trip Logic

    I.L. 40-386.4 * Sub 2 9657A59 Figure 2-17. Load Loss Accelerated Trip Logic * Sub 3 Figure 2-18. Reclosing Initiation Logic 1503B51 * Sub 2 Figure 2-19a. Out-of-Step Block Logic 1503B50 2-32...

  • Page 61: Out-Of-Step Block Logic (Blinder Characteristics)

    I.L. 40-386.4 Sub 1 9654A25 Figure 2-18b. Out-of-Step Block Logic (Blinder Characteristics) * Sub 2 9657A63 Figure 2-20. REL302 POTT/Unblocking, PUTT and Blocking Pilot Relay 2-33...

  • Page 62: Rel302 Channel Sending/Receiving Logic In Pott/Unblocking Scheme

    I.L. 40-386.4 * Sub 1 9662A67 Figure 2-21. REL302 POTT/Unblocking and PUTT Pilot Trip Logic * Sub 2 1503B52 Figure 2-22. REL302 Channel Sending/Receiving Logic in POTT/Unblocking Schemes 2-34...

  • Page 63: Rel302 Blocking System Logic

    I.L. 40-386.4 * Sub 2 9657A62 Figure 2-23. REL302 Channel Sending /Receiving Logic in PUTT Scheme * Sub 2 1503B53 Figure 2-24. REL302 Blocking System Logic 2-35...

  • Page 64: Unequal Pole Closing On Fault

    I.L. 40-386.4 Sub 1 9654A17 Figure 2-25. Power Reversal on POTT/Unblocking Schemes Sub 1 9654A29 Figure 2-26. Unequal Pole Closing on Fault 2-36...

  • Page 65: Rel302 Pilot Ground Trip Supplemented By Fdog

    I.L. 40-386.4 * Sub 3 9657A65 Figure 2-27. REL302 Pilot Ground Trip Supplemented by FDOG * Sub 1 9662A68 Figure 2-28. REL302 Additional Logic for POTT/Unblocking Schemes on 3-Terminal Line Application 2-37...
  • Page 66 I.L. 40-386.4 *Sub 1 9662A69 Figure 2-29. REL302 Additional Logic for PUTT Scheme on 3-Terminal Line Application * Sub 2 1503B54 Figure 2-30. REL302 Weakfeed Application 2-38...
  • Page 67 * Sub 2 1503B55 Figure 2-31. REL302 Reversible Zone-3 Phase and Ground (Reverse Block Logic)

  • Page 75: Measurement Units And Setting Ranges

    I.L. 40-386.4 Section 3. SETTING CALCULATIONS 3.1. MEASUREMENT UNITS AND SETTING RANGES DISTANCE MEASUREMENTS • Three variable mho phase-to-ground units and one variable mho phase-to-phase impedance unit per zone. Three Zones Phase and Ground Distance (Zone-1, 2, 3): 0.01 - 50 ohms in 0.01 ohm steps for 5 A (ct type) 0.05 - 250 ohms in 0.05 ohm steps for 1 A (ct type) Any Zone (phase or ground distance) can be disabled •...

  • Page 76: Calculation Of Rel301/302 Settings

    3.0 - 15.0 Ohms in 0.1 Ohm steps 3.2. CALCULATION OF REL 301/302 SETTINGS The following REL 301/302 setting calculations correspond to the setting categories in the In- stallation Section (4). Assume that the protected line has the following data: • 18.27 miles •...

  • Page 77: Ratio Of Zero And Positive Sequence Impedances (Zr)

    Ratio of Zero and Positive Sequence Impedances (ZR) = 20/6 = 3.33 Then REL 301/302 will automatically calculate the zero sequence current compensation factor ) by using the value of “Z 0L /Z 1L ”, “Ang Pos.”, “Ang Zero” and reference to equation 1 in Section 2.2.1 i.e.,...

  • Page 78: Zone-2 Distance Settings

    I.L. 40-386.4 If the calculated Zone-1 impedance is 0.5 ohms (secondary) or less the line percentage, used for the calculation, should be 70-75%. If the Source Impedance Ratio or SIR, (ratio of positive sequence source impedance to positive sequence line impedance) is in the range of 3-5 the line percentage, used for the calculation, should be no more than 75%.

  • Page 79: Out-Of-Step Block (Os Block) Blinder Settings (Os Inner And Os Outer)

    I.L. 40-386.4 NOTE: It should be set above the maximum tapped load current if applicable. Assume that the line charging current is negligible for this line section and the minimum load current is 2.0 Amps secondary, then the low set phase overcurrent unit setting should “Low IØ”...
  • Page 80 I.L. 40-386.4 • Inner blinder should not operate on severe stable swings • Outer blinder must have adequate separation from inner blinder for fastest out-of-step swing to be acknowledged as an out-of-step condition • Outer blinder must not operate on load Setting the Inner Blinder If the out of step blocking (OSB) is used to supervise tripping of the 3Ø...

  • Page 81: Timer Settings (Definite Time Setting)

    I.L. 40-386.4 For slow out-of-step swings, a reasonably close placement of outer to inner blinder charac- teristic is possible. The separation must, however, be based on the fastest out-of-step swing expected. A 50 ms interval is inherent in the out-of-step sensing logic, and the outer blinder must operate 50 ms or more ahead of the inner blinder.

  • Page 82: Timer Settings (Torque Control Overcurrent)

    (“T2Ø Type” and “T2G Type” set to “Torque Control”) pro- vides access to seven sets of overcurrent curves which are similar to ABB CO curves. Three settings “T2Ø CV”, “T2Ø PkUp” and “T2Ø TC” must be determined to apply phase torque controlled overcurrent protection.
  • Page 83 22 milliseconds, add 22 milliseconds to the times calculated for total trip time. REL 301/302 offers two reset characteristics for the torque control overcurrent functions, instan- taneous or time delayed. Instantaneous reset, as the name implies, means reset with no inten- tional time delay.

  • Page 84: Required Settings Application

    I.L. 40-386.4 3.3. REQUIRED SETTINGS APPLICATION The following settings are determined by the application. They do not require calculation. 3.3.1 Oscillographic Data (“OSC Data”) Capture Setting The OSC setting is for selecting one of the 4 choices, “TRIP”, “Z2TR”, “Z2Z3” or “∆I∆V”, to initiate the oscillographic data taken, where: “TRIP”...

  • Page 85: Read Primary Setting (Read Out)

    I.L. 40-386.4 For this example, set “CT Type” = 5 since a 5 amp current transformer is used. The setting of “CT Type” affects all the distance unit and overcurrent unit setting ranges. The ranges will be automatically changed as listed in Table 3-1. 3.3.7 Read Primary Setting (“Read Out”) The “Read Out”...

  • Page 86: System Type Selection (Systtype)

    “Pilot Ø”, “Pilot G”, “Zone-1 Ø”, “Zone-1 G”, “Zone-2 Ø”, “Zone-2 G”, “Zone-3 Ø”, “Zone-3 G”, “Inst. Ø”, “Inst. G” and “GB Type”. Procedure to disable the unit: Switch REL 301/302 to the setting mode (see Section 4.4.2), scrolling the function field to the desired function. Then set the unit to “Disabled”. 3.3.17 Step Distance Timers “T1 Timer”...

  • Page 87: Positive Sequence Impedance Line Angle ("Ang Pos.")

    I.L. 40-386.4 3.3.19 Positive Sequence Impedance Line Angle (“Ang Pos.”) Set the Positive Sequence Line Impedance Angle setting “Ang Pos.”, to the value of the posi- tive sequence line impedance angle. From the example data (Section 3.2), the setting would be “Ang Pos.”...
  • Page 88 “GBT Curve” should be set to “24”. Set “GB Type” to “C0-8” and set “GB Dir” to “YES” if directional control is required. REL 301/302 offers two reset characteristics for the ground backup overcurrent function, instantaneous or time delayed. Instantaneous reset, as the name implies, means reset with no intentional time delay.

  • Page 89: Close-Into-Fault Trip Setting (Cif Trip)

    Set the “Rem. Set” to “Remote Allowed” if remote setting, via communications port, is re- quired. 3.3.31 Real-Time Clock Setting With REL 301/302 in the “setting” mode, scroll the function field to “Set Time”, and change the value to “Yes”. Depress function push-button R to display Year, Month, Day, Weekday, AISE Hour, and Minute, and set the corresponding number via the value field.

  • Page 90: Section 3 Trip Time Constants For Curves

    I.L. 40-386.4 TABLE 3-1. T RIP TIME CONSTANTS FOR CURVES CURVE # 111.99 735.00 0.675 8196.67 13768.94 1.13 22705 784.52 671.01 1.19 1475 524.84 3120.56 2491 477.84 4122.08 1.27 9200 310.01 2756.06 1.35 9342 C011 17640.00 8875 TABLE 3-2 . RECLOSING INITIATION MODE PROGRAMMING “RI Type”...

  • Page 92: Installation And Operation

    4. 3. EXTERNAL WIRING All electrical inputs/outputs are made through the back of the REL 301/302. Figure 4-1 illus- trates where the different input/output signals are located. The vertical REL 301/302 is used as a reference in the location column of the Connection Specification Chart (similarly for the hori- zontal REL 301/302).
  • Page 93 I.L. 40-386.4 CONNECTION SPECIFICATION CHART Location Notes ANALOG INPUTS See Figure 4-2 Voltages and Currents SIGNAL INPUTS Non-Pilot Connection Terminals TB4-3 (+), TB4-4 (-) 52a required for some reclosing applications or programma- ble logic. Terminals TB4-5 (+), TB4-6 (-) 52b contact required for some logic functions. EXT RESET Terminals TB4-7 (+), TB4-8 (-) External Reset - resets LEDs and erases protection targets.

  • Page 94: Front Panel Man-Machine Interface (Mmi)

    4.4.1 LED Indicators The REL 301/302 comes with LEDs on the front panel. “IN SERVICE” LED should be on, all other indicators are off in normal conditions, but after a trip, the ones related to the trip blink. If a second trip occurs, the LEDs related to the latest fault double blink. See Section 5.1.1 for more details.

  • Page 95: Front Panel Operation

    I.L. 40-386.4 4.4.2.1 Front Panel Operation There are five different modes, described below: MODE As Displayed SETTINGS [SET] METERING [METER] LAST-FAULT [L-FLT] PREVIOUS-FAULT [P-FLT] TEST [TEST] By keeping the SELECT push-button depressed, the list of modes is scrolled in the sequence shown above, at a one second rate.
  • Page 96 Test Mode is selected by the SELECT push-button. • Relay Self-Check Status The REL 301/302 continuously performs self-checking. The results of the self-check are rep- resented by a hex value in the VALUE FIELD of the Status Function: The results of the system self-check routines are accessible using the following procedure: a.

  • Page 97: Jumper Controls

    I.L. 40-386.4 Relay Output Test All relay outputs can be tested using the procedure described below (1) Open the red FT switches, of the breaker trip circuits, making sure that the following FT switch is not opened: FT-5 BFI/Reclose Enable (2) Move the spare blue jumper to position JP5 on the Microprocessor module (refer to Table 5-3).

  • Page 98: Communication Port(S) Use

    Personal Computer Requirements Communication with the relay requires the use of Remote Communication Program (RCP) re- gardless of the comm. port option. RCP is supplied by ABB Relay Division and is run on a per- sonal computer (PC). To run the program requires an IBM AT, PC/2 PC or true compatible with a minimum of 640 kilobytes of RAM, 1 hard disk drive, a RS-232C comm.

  • Page 99: Setting Change Permission And Relay Password

    Although the RS-232C standard does not specify a connector shape, the most commonly used is the “D” shape connector. As stated in Section 4.6.2 above, all ABB relay communication con- nectors are of the “D” shape (such as DB-25S).

  • Page 100: Front Rs-232C Communications Port

    Password: When the REL 301/302 is received from the factory of if the user loses the relay password, a new password can be assigned with the following procedure:...

  • Page 101: Troubleshooting

    4. 8. SIXTEEN FAULT TARGET DATA The REL 301/302 saves the latest 16 fault records, but only the latest two fault records can be accessed from the front panel. For complete 16 fault data, one of the communication interface devices are necessary. The activation of fault data storage is controlled by setting FDAT. Refer to Section 2.4.17.1 for detailed information.

  • Page 102: Programmable Contact Outputs Applications

    A Breaker Failure Scheme Using REL 301/302 programmable outputs and internally derived overcurrent signals is described in the following. The REL 301/302's programmable logic capa- bilities permit its use in this application. The scheme can be simple, two contacts with time de- lays BF1 and BF2, or more complex using the two contacts mentioned plus one contact (OC1) as a Retrip and another contact, with time delay, as the control timer function.
  • Page 103 Section 4.10. When the contact programming is complete the contact program- ming choices screen should appear as in REL 301/302 PROGRAMMABLE CONTACT SET- TINGS (Breaker Failure) table, at the end of this section, with time delays filled in for each of...
  • Page 104 I.L. 40-386.4 REL 301/302 PROGRAMMABLE CONTACT SETTINGS (Breaker Failure) Contact P P 3 S A I Z Z Z Z L L I E O R I C C V I Z Z C L W T 5 I Output...
  • Page 105 I.L. 40-386.4 Communications Port Connector Output Output Use Mounting Stud For Case Grounding Dtp drawing Figure 4-1. REL 301/302 Terminals 4-14...
  • Page 106 X – CLOSE A UX. Y – ANTI-PUMP 86BF – BREAKER FAILURE LOCKOUT 101 – BREAKER CONTROL SWITCH *Sub 2 C – CLOSE CONTACT 1613C80 T – TRIP CONTACT Sheet 1 of 2 Figure 4-2. REL 301/302 Systems External Connection 4-15...
  • Page 107 SEE SHEET 1 FOR DETAILS OF FT SWITCH1 CONNECTIONS Sub 3 1613C80 Sheet 2 of 2 Figure 4-3. REL 301/302 Systems External Connection Denotes Change...
  • Page 108 + DC Supply Voltage BFIA-1 Other FT-6 TRIP A1 TB1-3 FT-8 TB4-3 TB4-4 TB1-2 TB3-17 TB3-18 TB3-12 BF TIME 1 BREAKER FAILURE TRIP TB3-11 TB3-19 BF TIME 2 TB3-20 86 BF - DC Supply Voltage Figure 4-4. REL 301/302 Breaker Failure DC Schematic...
  • Page 109 I.L. 40-386.4 Table 4-1 Setting Display (3 Pages) Function Field Value Field Setting Front Front Panel Panel Software Version Version VERSION Numerical NUMERICAL Oscillographic Data TRIP/Z2TR/Z2Z3/ Osc Data Trip/Zone2/Zone2, Zone3/dV or dI Initiation dVdI Fault Data Initiation Flt Data FDAT Trip/Zone2/Zone2, Zone 3 TRIP/Z2TR/Z2Z3 CT Ratio...
  • Page 110 I.L. 40-386.4 Function Field Value Field Setting Front Front Panel Panel Zone1 Delay Trip Timer T1 Timer 0 - 15 cycles 0 - 15 CYCL OUT/0.01-50.00 Zone2 Phase Unit Zone2 Ø Disabled/0.01 - 50.00 OHMS OHMS Zone2 Phase Timer – Timer Type T2Ø...
  • Page 111 I.L. 40-386.4 Function Field Value Field Setting Front Front Panel Panel OSB Inner Blinder OS Inner 1.00 - 15.00 OHMS 1.0 - 15.0 OHMS OSB Outer Blinder OS Outer 3.00 - 15.00 OHMS 3.00 - 15.00 OHMS Zero Sequence ZSEQ Directional Overcurrent Dir Type DIRU...

  • Page 112: Metering Display

    I.L. 40-386.4 Table 4-2 Metering Display Front Panel METER Function Value Field Field Phase A Current (Magnitude & Angle) Magnitude (A) and Angle (°) Phase A Voltage (Magnitude & Angle) VAG: Magnitude (V) and Angle (°) Phase B Current (Magnitude & Angle) Magnitude (A) and Angle (°) Phase B Voltage (Magnitude &...
  • Page 113 I.L. 40-386.4 Table 4-3 Target (Fault Data) Display (2 Pages) Function Value L-FLT Front Information Front Panel Panel AG/BG/CG/AB/BC/CA/ABG/ AG/BG/CG/AB/BC/CA/ BCG/CAG/ABC/Blank if ABG/BCG/CAG/ABC/ Fault Type Flt type FTYP other/Test Blank if other/TEST Breaker 1 Tripped Breaker 1 Yes/No YES/NO Breaker 2 Tripped Breaker 2 Yes/No YES/NO...
  • Page 114 I.L. 40-386.4 Function Value L-FLT Front Information Front Panel Panel 3V0 Fault Voltage 3V0 Flt 3V0 MAG Magnitude Volts VOLTS Angle (°) DEG. rent IA Flt IPAMAG Magnitude Volts VOLTS Phase A Fault Cur Angle (°) DEG. e B Fault Current IB Flt IPB MAG Magnitude Volts...

  • Page 115: Programmable Contact Outputs

    I.L. 40-386.4 Table 4-4 Programmable Contact Outputs List of the 30 functions to choose from for the programmable contact outputs. Function Description Logic OR when several functions are combined Logic AND when several functions are combined CIFT Close into fault trip Zone2 phase pickup Zone2 ground pickup Zone3 phase pickup...

  • Page 116: Communications Cable Requirements

    See Table 4-6 For set- modem To Modem: 25 pin DTE tings * Note: A communications cable kit (item identification number 1504B78G01) that will accommodate most connection combinations (* in Table 4-5), is available through your local ABB represen- tative. 4-25...

  • Page 117: Dip Switch Setting Chart

    I.L. 40-386.4 Table 4-6 Dip Switch Setting Chart Port Data Dip Switch Pole Rate (bps) 1200 2400 Logic 1 is towards Printed Circuit Board 4800 9600 Dip Switch poles 4 & 5 are not used 19200 1200 1200 Table 4-7 RS-PONI (9-Pin) Communications Speed Setting DIP Switch 1200 2400...
  • Page 118 Evaluation Test Manual is recommended for that purpose. The manual is intended to aid the user in understanding the software design and/or decide if the REL 301 or REL 302 is suit- able for a specific application. For further details see Engineering Evaluation Test Manual, TM 40-386.
  • Page 119 IN (Jumper Present) Trip Dropout Delay OUT (No Jumper) Enable Output Test OUT (No Jumper) A/D Calibration OUT (No Jumper) *To verify or change jumper positions on the microprocessor module it is necessary to remove the front panel of the REL 301/302.

  • Page 120: Non-Pilot Acceptance Tests For Rel301/302

    NON-PILOT ACCEPTANCE TESTS FOR REL 301/302 5.1.1 Front Panel Man-Machine-Interface (MMI) Test REL 301/302 front panels consists of 9 Light Emitting Diodes ( LED s) push-button and ESET the Man-Machine-Interface (MMI) which includes a 2 line (16 character per line) Liquid Crystal Display (LCD) with 4 push-buttons.

  • Page 121: Input Quantities Verification And Metering Display

    I.L. 40-386.1 Press the S push-button and scroll to the “TEST” display. The display should read “STA- ELECT TUS” “0” indicating the self-checking/startup/initialization routine was completed successfully and the system is continuously passing the self-checking routine. STEP 2 Press the S push-button until you reach the “SET”...

  • Page 122: Test Mode

    VALUE FIELD of the “Status” function. A normal status, (relay system passing the self-check routine) is “STATUS” “0”. If REL 301/302 fails the self-check routine another hex value is displayed, which can be interpreted to provide failure mode information.
  • Page 123 I.L. 40-386.1 Using the following table, failure mode can be determined by equating bit numbers (from above) to failure description. A bit set to “1” indicates the corresponding failure has been detected. RELAY STATUS FAILURE MODE FAILURE DESCRIPTION BIT NUMBER RAM Failure EEPROM* Warning** EPROM Checksum Fail ***...

  • Page 124: Zone-1 Impedance Accuracy Check

    In order to perform all tests, voltages will be applied first then the designated value of current has to be suddenly applied. If REL 301 or REL 302 does not trip, adjust the current to a higher value, and then suddenly reapply current. Unlike conventional electromechanical relays, slowly ramping up the current will not cause Zone 1tripping.
  • Page 125 I.L. 40-386.1 using: X = 75° (lagging) = Fault voltage chosen for faulted phase, in this example 30 volts The current required to trip = 4.00A +/- 5 % for fault current lagging fault voltage by 75°. This is the maximum torque angle test. For other points on the MHO circle, change X to a value be- tween 0°...

  • Page 126: Input Opto-Coupler Check (Also See Step 12)

    I.L. 40-386.1 STEP 7 Using the test connections shown in Figures 5-5 and 5-6, repeat Step 6 above for B phase-to- ground (BG) and C phase-to-ground (CG) faults respectively. The test voltages are shown be- low: For BG fault test, make connections as shown in Figure 5-5 and adjust the voltages as follows: = 70 ang 0°...

  • Page 127: Input Transformer (Ip) Check

    I.L. 40-386.1 Again apply an AG fault. Again the Zone 1 and AG LEDs will light and begin flashing. The LCD display will switch to the “L-FLT” mode and fault distance will be displayed. Apply rated dc volt- age to terminals TB4-7(+) and TB4-8(-). The LCD will display “FLT Type”, all fault data will be erased and the LED’s will stop flashing.

  • Page 128: Output Contact And Input Circuit Verification Test

    I.L. 40-386.1 The significant quantities to review are: Fault Type – “FLT Type” “AG” Targets – “GB Trip” “Yes” Fault Voltages (VA, VB, VC, 3V0) and Currents (IA, IB, IC, IP) Using the same test connection, as above, the system should not trip at any of the following an- gles of I •...

  • Page 129: Pilot Acceptance Tests (For Rel302 Only)

    5.2.1 Non-Pilot Acceptance Tests for REL 301/302 Perform the acceptance test procedures in Section 5.1 if not previously completed. These tests are valid tests of hardware and firmware performance for either REL 301 or REL 302. 5.2.2 Input Opto-Coupler Check...
  • Page 130 I.L. 40-386.1 The significant quantities to review are: Fault Type — “FLT Type” “AG” Targets — “Pilot G” “YES” Fault Voltages (VA, VB, VC, 3V0) and Currents (IA, IB, IC, 3I0) Pressing the front panel R push-button will cause the LCD display to switch to the ESET “METER”...

  • Page 131: Maintenance Procedures

    5.3.1.1 above. 5.3.1.3 Routine Visual Inspection With the exception of routine visual inspection, the REL 301/302 relay assembly should be maintenance free for one year. A program of routine visual inspection should include: • Condition of cabinet or other housing •...

  • Page 132: Perform The Acceptance Test

    I.L. 40-386.1 • Proper seating of subassemblies • Condition of external wiring • Appearance of printed circuit boards and components • Signs of overheating in equipment 5.3.1.4 Perform the Acceptance Test Performing this test is optional if all other test results are acceptable. 5.

  • Page 133: Real-Time Clock Calibration On Microprocessor Module

    I.L. 40-386.1 Turn “ON” the dc power supply and adjust Pot P15 until the Value display reads 0 or FFFF Hex. 5.4.3 Real-Time Clock Calibration on Microprocessor Module Connect a precision period counter instrument to TP1, on the microprocessor module and TP7 (common) on the input/filter module.
  • Page 134 I.L. 40-386.1 220/250 Sample/Hold Device 15/20 48/125 220/ Test Points fot A/D Calibration Trim Pots fot A/D Calibration RESET PILOT ENABLE RCVR Not Used SYNC CHECK RCVR REFERENCE 220/ Common for clock calibration * Inputs are in Volts dc 5-17...
  • Page 135 I.L. 40-386.1 JMP1 CARRIER STOP NO NC JMP2 CARRIER SEND NO NC JMP5 OC 4 NO NC JMP4 OC 3 NO NC OC 2 JMP3 NO NC AL - 1 JMP6 AL - 2 5-18...

  • Page 136: Microprocessor Module

    I.L. 40-386.1 Clock Battery Variable Capacitor for Clock Calibration *Sub 6 1613C55 Sheet 3 of 3 Figure 5-3. Microprocessor Module 5-19...

  • Page 137: Aø-Ground Test

    Rated dc Voltage (Check Nameplate) REL 301/302 (Front View) Install this jumper if dual polarizing not used Figure 5-4. Test Connection for AØ - Ground Test...

  • Page 138: Bø-Ground Test

    Rated dc Voltage (Check Nameplate) REL 301/302 (Front View) Install this jumper if dual polarizing not used Figure 5-5. Test Connection for BØ-Ground Test...

  • Page 139: Cø-Ground Test

    Rated dc Voltage (Check Nameplate) REL 301/302 (Front View) Install this jumper if dual polarizing not used Figure 5-6. Test Connection for CØ-Ground Test...

  • Page 140: Aø-Ground Test (Dual Polarizing)

    Rated dc Voltage (Check Nameplate) REL 301/302 (Front View) Figure 5-7. Test Connection for AØ-Ground Test (Dual Polarizing)

  • Page 141: Settings (Non-Pilot System)

    Set Time NOTE: This REL 301 settings table is for 60 Hz and 5A ct systems. For 1A ct, change Zone1 Ø, Zone1 G, Zone2 Ø, Zone2 G, Zone3 Ø, Zone3 G, OS Inner, OS Outer by multiplying a factor of 5, and all current values mentioned in the text should be multiplied by a factor of 0.02.

  • Page 142: Settings (Pilot System)

    Set Time NOTE: This REL 301 settings table is for 60 Hz and 5A ct systems. For 1A ct, change Zone1 Ø, Zone1 G, Zone2 Ø, Zone2 G, Zone3 Ø, Zone3 G, OS Inner, OS Outer by multiplying a factor of 5, and all current values mentioned in the text should be multiplied by a factor of 0.02.

  • Page 143: Rel301/302 Reference Drawings

    I.L. 40-386.1 Table 5-6 REL 301/302 Reference Drawings Drawing Name Drawing Number (Sheet Numbers) General Drawing 2678F11 (1,2,3,4) Filter Module Schematic 1612C33 (1,2) Filter Module Assembly 1612C34 (1,2,3) Backplane Module Schematic 1357C85 Backplane Module Assembly 1612C53 (1,2,3) Power Supply Module Schematic...

This manual is also suitable for:

Rel 302

Table of Contents