ABB REL300 Instruction Manual
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ABB REL300 Instruction Manual

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Instruction Manual V2.71
40-385.7A
REL300
Relay System
ABB Network Partner
ABB Power T&D Company Inc.
Relay Division
4300 Coral Ridge Drive
Coral Springs, FL 33065
April 1996
954 752-6700
800 523-2620

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  • Page 1 Instruction Manual V2.71 40-385.7A REL300 Relay System ABB Network Partner ABB Power T&D Company Inc. Relay Division 4300 Coral Ridge Drive Coral Springs, FL 33065 April 1996 954 752-6700 800 523-2620...
  • Page 2 MDAR REVISION NOTICE DATE REV LEVEL PAGES REMOVED PAGES INSERTED 4/96 Released CHANGE SUMMARY: A CHANGE BAR ( | ) LOCATED IN THE MARGIN REPRESENTS A TECHNICAL CHANGE TO THE PRODUCT.
  • Page 3 Failure to do so may result in injury to personnel or damage to the equip- ment, and may affect the equipment warranty. If the REL300 relay system is mounted in a cabinet, the cabinet must be bolted to the floor, or otherwise secured before REL300 installation, to prevent the system from tipping over.
  • Page 4 Setting Nomenclature Appliques If this I.L. is included as part of the shipment of an REL300 Relay system, the I.L. will contain setting nomencla- ture appliques which can be placed in a convenient location, e.g., inside the two FT-14 covers. The appliques provide a convenient (and complete) set of REL300 “settings”...
  • Page 5 I.L. 40-385.7 Features Included in Version V2.71 The following features are standard for the Non-Pilot REL300 V2.71: • 3-Zone phase and ground distance relay, with re- • Programmable Reclose initiation and reclose versible Zone 3 phase and ground; 4 impedance block (RB) outputs;...
  • Page 6 – POTT or Simplified Unblocking Weakfeed • Weakfeed Trip Features Included in Version V2.71 The following features are optional for the Non-Pilot and the Pilot REL300 V2.71 • Choice of rear communications port options: • Built-in FT-14 test switches RS232C W/IRIG B PORT/PONI •...
  • Page 7 I.L. 40-385.7 Significant Changes to Version V2.70 (from V2.10) (For customers who are familiar with Version 2.00 and beyond) Please refer to system drawing 2865F41 Sub 2, in I.L. 40-385.4 and drawing 2693F60 in I.L. 40-385.6 for the following changes. 1.
  • Page 8 The minimum setting of FDGT should be 3 cycles unless for some special application. c) Refer to section 3.4.7 for the setting of CIF if two REL300 relays control a single breaker and share a common 52b output.

  • Page 9: Table Of Contents

    REL300 MODULES - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 10 Zone 1 Extension - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-5 REL300 NON-PILOT FEATURES - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-5 3.4.1...
  • Page 11 I.L. 40-385.7 Current or Voltage Change Fault Detector (∆I, ∆V) and GS - - - - - - - - - - - - - - 3-10 3.4.10 3.4.11 Selectable Ground Directional Unit (ZSEQ/NSEQ/DUAL) - - - - - - - - - - - - - - - 3-11 3.4.12 Instantaneous Forward Directional Overcurrent Unit (FDOG) and Phase Unit (FDOP) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-11...
  • Page 12 EXTERNAL WIRING - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-2 REL300 FRONT PANEL DISPLAY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-3 4.4.1...
  • Page 13 Timer Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-7 SELECTION OF REL300 SETTINGS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-7 5.2.1...
  • Page 14 The STYP (system type) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-9 5.2.16 For the pilot REL300 only - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-10 5.2.17 For permissive pilot REL300 only - - - - - - - - - - - - - - - - - - - - - - - - - - 5-10 5.2.18...
  • Page 15 Simplified Block Diagram of REL300 Relay - - - - - - - - - - - - - - - - - 1-4 - - - - - - - - - - - - 1-12 REL300 Relay Program Functions - - - - - - - - - - - - - - - - - - - - - 1-5 - - - - - - - - - - - - 1-13...
  • Page 16 REL300 Block Diagram - - - - - - - - - - - - - - - - - - - - - - - - - - SD-1 - - - - - - - - - -...
  • Page 17 ONSTANTS FOR URVES REL300 - - - - - - - - - - - - - - - - - - - - A-3 - - - - - - - - - - - - - A-28 AULT...

  • Page 18: Section 1: Product Description

    Self-checking and line monitoring techniques are included. REL300 is primarily recommended for application on non-series compensated lines. The non-pilot REL300 relay system is standard (see Section 3); an optional pilot REL300 relay system is also available (in Section 3).

  • Page 19: Rel300 Modules

    Backplane module. 1.3.2 Interconnect Module The Interconnect module (see Appendix B) becomes the floor of the REL300 inner chassis; it provides electrical connections from and to all other modules: from the Backplane (at the rear), to the Filter and Power Supply modules (at left and right, respectively), and to the Microproces- sor and Display modules at the front of the inner chassis.

  • Page 20: Option Module/Contact Module

    • RAM - Volatile read-write memory, for working storage. • NOVRAM (EEPROM) - Non-volatile memory for storing settings and fault-data targets when the REL300 relay is deenergized. • A/D Converter - The seven inputs from the filter module are analog-multiplexed to a single sample/hold circuit.

  • Page 21: Display Module

    A display saver software is also built in. The REL300 display will be on only for 5 minutes after turning the dc power on or depressing any one of the front panel push-button or detecting faults on the line.

  • Page 22: Contact Outputs

    The software then waits for the timer to time out. The REL300 relay program functions are included in a flow chart loop (shown in Figure 1-5), which the Microprocessor repeats 8 times per power cycle. Most functions are performed all of the time, in the background mode, as shown.

  • Page 23: Fault Mode And Restricted Fault Tests

    No dc offset compensation is per- formed. High-set instantaneous overcurrent and Zone 1 distance unit tests are executed (see Section 3.2, REL300 Line Measurement). This will speed up tripping by as much as one cycle for high current faults.

  • Page 24: Unique Remote Communication (Wrelcom®) Program

    Special software, RCP is provided for obtaining fault, metering and current settings data as well as sending data to REL300. RCP can best be described as a user friendly way of using a per- sonal computer (PC) to communicate with ABB protective relays by way of pull-down menus.
  • Page 25 I.L. 40-385.7 ABB BULLETIN BOARD NOW ON LINE To obtain the latest RCP communication software, please call the ABB Power T&D Company Inc., Relay Division bulletin board system via modem at: (800) 338-0581 (954) 755-3250 Using configuration settings 300 - 14,400 bits/second, 8 data bits, 1 stop bit, no parity, and full duplex.
  • Page 27 I.L. 40-385.7 PONI BACKPLANE BD. TRANSFORMERS OPTION or CONTACT BD. INTERCONNECT BD. PROCESSOR BD. DISPLAY BD. esk00305 Figure 1-2 Layout of REL300 Modules Within Inner and Outer Chassis 1-10...
  • Page 29 Sub 6 9651A07 Figure 1-4 Simplified Block Diagram of REL300 Relay...
  • Page 30 – Contact Inputs NO Zone 1 – Single-Pole-Trip – Trip Logic or Pilot Fault & MODE = – Reclosing Background V & I Stable? – Data Communications Data Bank – Target Data Collection Control Figure 1-5 REL300 Relay Program Functions 1-13...

  • Page 31: Section 2: Specifications

    I.L. 40-385.7 Section 2. SPECIFICATIONS TECHNICAL Operating Speed (from fault detection 12-14 ms (minimum) to trip contact close 22 ms (typical) -60 Hz) ac Voltage (VLN) at 60 Hz Vrms (VLN) at 50 Hz 63.5 Vrms ac Current (In) 1 or 5 A Rated Frequency 50 or 60 Hz Maximum Permissible ac Voltage...

  • Page 32: Contact Data

    I.L. 40-385.7 CONTACT DATA Trip Contacts - make & carry 30 A for 1 second, 10 A continuous capability, break 50 watts re- sistive or 25 watts with L/R =.045 seconds • Non-Trip Contacts 1A Continuous 0.1A Resistive Interrupt Capability Supports 1000 Vac rms across open contacts Contacts also meet IEC - 255-6A, IEC - 255-12, IEC -255-16, BS142-1982.

  • Page 33: Setting Ranges

    I.L. 40-385.7 SETTING RANGES Phase and Ground Distance (Zone 1, 2, 3): • 0.01-50 ohms in 0.01 ohm steps for 5 A (ct) • 0.05-250 ohms in 0.05 ohm steps for 1 A (ct) Zone Timers - Separate timers for phase and ground: •...

  • Page 34: Optional Single-Pole-Trip Logic And Outputs

    I.L. 40-385.7 OPTIONAL SINGLE-POLE-TRIP LOGIC AND OUTPUTS (Without Programmable Contact Option) • SPT/RI1 on first φGF fault and 3PT on other types of faults • 3PT/RB if reclosing on a permanent fault • 3PT/RB if second phase(s) fault during single phasing •...

  • Page 35: Selectable Phase Sequence Abc Or Acb Rotation

    I.L. 40-385.7 • OSB Inner Blinder (RT) 1.0-15.0 ohms in 0.1 ohm steps NOTE: The RT is a standard setting; for load restriction. • OSB Outer Blinder (RU) 3.0-15.0 ohms in 0.1 ohm steps 2.11 SELECTABLE PHASE SEQUENCE ABC OR ACB ROTATION A jumper #3 on Microprocessor module is used for phase rotation selection.
  • Page 43 Sub 2 2403F38 Figure 2-8 REL300 Outline Drawing...

  • Page 44: Rel300 Backplane

    Figure 2-9. REL300 Backplane (Rear View) Sub 11 2420F01...

  • Page 45: Section 3: Applications And Ordering Information

    ABC rotation. Refer to Section 1.8 for ACB system. NON-PILOT SYSTEM The REL300 non-pilot relay system detects faults in three zones of distance, phase and ground. Zones 1 and 2 are forward set; Zone 3 can be set to forward or reverse. There is also a separate optional pilot zone (see Section 3.5).

  • Page 46: Single-Phase-To-Ground

    Reference quantity in phase angle. The Operate quantity is essentially iden- tical to that in REL300 Version 2.2 and earlier relays. The Reference quantity is changed from earlier versions, in order to produce a fixed mho characteristic which will have better perfor- mance when applied to resistance grounded systems.

  • Page 47: Three-Phase

    “3ZNP”, it will perform the 3-zone non-pilot function. When the REL300 trips, the trip contacts will be sealed-in as long as the trip coil current flow exists. The trip contacts can be delayed dropout (by 50 ms) after the trip current is removed, providing a jumper (JMP4) on the Microprocessor module is connected.

  • Page 48: Zone 2 Trip

    I.L. 40-385.7 satisfy AND-2 and provides a high-speed trip (HST) signal from OR-2 to operate the trip output telephone relay. The trip circuit is monitored by a seal-in reed relay (S), which is in-series with each trip contact in the tripping circuits. The “S” relay will pick up if the trip current is higher than 0.5 Amp.

  • Page 49: Zone 3 Trip

    I.L. 40-385.7 The single-phase ground distance units may respond to a φφG fault. The output of the Z2G unit plus the operation of the φφ selection will trip the Z2P via OR-157, T2P and AND-18. Leading phase blocking is unnecessary for an overreach Zone device. The TDT signal can be connected to the reclosing block logic.

  • Page 50: Zone 1 Extension

    This scheme provides a higher speed operation on end zone faults without the application of a pilot channel. If the REL300 functional display “STYP” is set on Z1E position, the 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 51: Loss Of Potential Supervision (Lop)

    I.L. 40-385.7 function uses the torque control approach, as indicated in Figure 3-9 (page 3-33). The GB func- tion can be disabled by setting the GBCV to the OUT position. The directional unit is determined by the setting of “DIRU” which can be set to zero sequence voltage (ZSEQ), dual (DUAL, zero sequence voltage and/or zero sequence current) or negative sequence (NSEQ, negative sequence voltage and negative sequence current) for polarization (see 3.4.11, Selectable Ground Directional Unit, ZSEQ / NSEQ / DUAL).

  • Page 52: Loss Of Current Monitoring (Loi)

    3.4.5 Overcurrent Supervision For REL300, as shown in Figure 3-13 (page 3-36), the distance units do not require overcurrent supervision; because the relay normally operates in a background mode, they will not start the Zone 1 and pilot impedance computation until a phase current or a phase voltage disturbance is detected.
  • Page 53 I.L. 40-385.7 VALUE MEANING No CIFT or SBP selected Standard CIFT, without timer; No SBP Modified CIFT, with timer; No SBP STUB SBP logic; No CIFT SBP plus standard CIFT SCFT SBP plus modified CIFT The CIFT logic employs low voltage sensing functions LVA, LVB, and LVC, which deliver a log- ic one when the particular phase-ground voltage is below the LV setting, adjustable from 40 to 60 volts in one volt increments.

  • Page 54: Unequal-Pole-Closing Load Pickup Logic

    (e.g., due to low gas pressure), the closing action of the 52b contact, con- nected to REL300, will reset the Z1G trip path AND-3, and ultimately, the BFI contact. This may introduce interruption to the BF scheme if BFI logic does not provide seal-in circuit. The AND- 3C logic in Figure 3-16 will solve this problem.

  • Page 55: Current Or Voltage Change Fault Detector (∆I, ∆V) And Gs

    (IL) and complicated infeed from the third terminal. 3.4.10 Current or Voltage Change Fault Detector ( ∆ I, ∆ V) The REL300 relay normally operates in the Background mode, where it experiences phase cur- rent or voltage disturbances. During background mode, the four input currents (I...

  • Page 56: Instantaneous Reverse Directional Overcurrent Ground

    Initiation logic (as shown in Figure 3-19, page 3-41). The operation of either RI1, RI2, or RB must be confirmed by the signal of TRSL, which is the trip output of REL300 operation. The External Pilot Enable Switch (see Figure 4-1, TB-5 terminals 9 and 10), is used for enabling the pilot system externally.

  • Page 57: Output Contact And Opto-Input Tests

    36 for detailed procedures.) 3.4.16 Sixteen Fault Data The REL300 system saves the latest sixteen fault records for all zones. The latest two fault records can be accessed either via the front panel or via the communication port. Fault records 3 thru 16 can only be accessed via the communication port.

  • Page 58: Security Logic For Subsequent Out-Of-Step (Os) Condition

    I.L. 40-385.7 The following quantities are used for the blinder sensing: Blinder Polarizing Operating Line ° ° -j(V XG + I X R C ∠(PANG–90 ∠(PANG–90 Left ° ° j(V XG - I X R C ∠ (PANG–90 ∠(PANG–90 Right where Phase to ground voltage, V A G or V BG Phase current in φA or φB...

  • Page 59: Pilot System

    3.5.1 Permissive Overreach Transfer Trip (POTT)/Simplified Unblocking If the functional display “STYP” is set at the POTT position, REL300 will perform either the POTT scheme or the Simplified Unblocking scheme, depending on the applied pilot channel. The basic operating concepts of a POTT scheme are: 1) Pilot relays (PLTP/PLTG) are set to overreach the next bus.
  • Page 60 ABB type TCF-10B receiver provides this logic; it provides a 150 ms trip window, then automat- ic lockout after loss-of-channel. Provision for a second high-speed pilot trip is provided, for the situation when a permanent fault causes a permanent loss-of-channel and the breaker closes onto the fault.
  • Page 61 I.L. 40-385.7 AND-35 will operate the reed relay (CARSND), key the local transmitter, shift the transmitting frequency from guard to trip (or from a blocking to an unblocking), to al- low the remote pilot relay system to trip. Echo Keying Since the POTT and the Simplified Unblocking schemes require the receiving of a permissive signal from the remote end, for pilot trip, provision should be made for covering the condition when the remote breaker is opened.

  • Page 62: Permissive Underreach Transfer Trip (Putt)

    I.L. 40-385.7 plication, the Z3FR setting MUST be set to “REV” and Z3P, Z3G should be set to 100% of the line impedance. Channel Simulation The test function selection provides the capability to simulate the “TK” switch function for keying action via OR-18 and AND-35 without the operation of pilot relay units, and to sim- ulate the RS switch function for receiving of a trip or unblocking frequency signal action without the operation from the remote transmitter.
  • Page 63 I.L. 40-385.7 c. Programmable Reclosing Initiation (Figure 3-19, page 3-41) Same as for POTT scheme. d. Carrier Receiving Logic (Figure 3-23, page 3-43) Same as for POTT scheme. e. Channel Indicators (Figure 3-23, page 3-43) Same as for POTT scheme. 3.5.3 Directional Comparison Blocking Scheme (BLK) (See Figure 3-25, page 3-45) The basic operating concept of a Directional Comparison Blocking system (BLK) are:...
  • Page 64 Since the present keying practice on BLK system uses either the contact open (neg- ative or positive removal keying) or contact close (positive keying) approach, a form- C dry contact output for keying is provided in REL300. Signal continuation and TBM logic For a reverse fault, both the local carrier start relay(s) and the remote pilot relay(s) see the fault and operate.

  • Page 65: High Resistance Ground Faults - Pilot Supplement

    The POTT/unblocking scheme will incorrectly trip out of the protected line. REL300 POTT/Unblocking pilot ground unit (PLTG/FDOG) is supervised by the reverse-look- ing ground unit (RDOG). The “Reverse-Block” logic is as shown in Figure 3-32 (page 3-49). At terminal A, the RDOG disables the PLTG/FDOG trip/key functions via OR-9A, AND-45A AND- 45 and AND-30.

  • Page 66: 3-Zone Distance Phase And Ground With

    I.L. 40-385.7 3-ZONE DISTANCE PHASE AND GROUND WITH INDEPENDENT PILOT PHASE AND GROUND There are four impedance units per zone: one phase-to-phase unit and three phase-to-ground units (see also Section 3.3). The following table shows the role of each distance unit per pilot zone scheme.

  • Page 67: Loss-Of-Potential Supervision

    I.L. 40-385.7 LOSS-OF-POTENTIAL SUPERVISION (LOP, See Section 3.4.3) 3.10 LOSS-OF-CURRENT MONITORING (LOI, See Section 3.4.4) 3.11 OVERCURRENT SUPERVISION (See Section 3.4.5) 3.12 INSTANTANEOUS OVERCURRENT TRIP (See Section 3.4.6) 3.13 HIGH-SET INSTANTANEOUS DIRECT TRIP, INCLUDING THREE-PHASE AND ONE GROUND OVERCURRENT UNITS FOR SPT/3PT APPLICATION (See Section 3.4.6) 3.14 CLOSE-INTO-FAULT TRIP AND STUB BUS PROTECTION (See Section 3.4.7) 3.15 UNEQUAL-POLE CLOSING LOAD PICKUP LOGIC (See Section 3.4.8) 3.16 SELECTABLE LOSS-OF-LOAD ACCELERATED TRIP LOGIC (LLT) (See Section 3.4.9)
  • Page 68 I.L. 40-385.7 minals, AND-55 logic can be satisfied, then pilot trip will be performed via the logic in the usual way. 3.20 WEAKFEED TRIP APPLICATION a. Block/Weakfeed The logic for a weakfeed terminal is not required for the BLK system because the BLK sys- tem requires no permissive trip signal from the remote end, even though the remote end is a weakfeed terminal.
  • Page 69 The problem is how to inhibit reclosing on those termi- nals, to limit damage. REL300 solves this problem at the far end terminals by the Reclose Block on Breaker Failure Squelch logic in the RI/RB software. When the breaker fails to trip, the BFI logic squelches the channel to continuous permissive signal, or stops the blocking signal.
  • Page 70 • Self-check function (See Section 1.6, page 1-6 and 4.5.4, page 4-6). 3.25 REL300 Ordering Information The REL300 equipment is identified by the Catalog Number on the REL300 nameplate which can be decoded by using Table 3-1, (page 3-51). 3-26...
  • Page 71 I.L. 40-385.7 Sub 3 9651A57 Figure 3-1 REL300 Characteristics/R-X Diagram. 3-27...
  • Page 72 I.L. 40-385.7 Z2GF Z3GR* Z1GF PANG Z3GF* Z1GR Z2GR * Reverse-Looking Zone Three NOTE: Z3GF = “TRIP DIRECTION’ Reach Z3GR = “NON-TRIP” Reach Figure 3-2 Mho Characteristic for Phase-Ground Faults 3-28...
  • Page 73 I.L. 40-385.7 Sub 1 9654A14 Figure 3-3 Mho Characteristics for Three-Phase Faults (No Load Flow). Sub 1 9654A15 Figure 3-4 Mho Characteristics for Phase-to-Phase and Two Phase-to-Ground Faults (No Load Flow). 3-29...
  • Page 74 Sub 1 9661A16 Figure 3-5 REL300 Zone 1 Trip Logic.
  • Page 75 Sub 2 9658A84 Figure 3-6 REL300 Zone 2 Trip Logic.
  • Page 76 Sub 1 1504B04 Figure 3-7 REL300 Zone 3 Trip Logic.
  • Page 77 I.L. 40-385.7 Sub 1 9654A16 Figure 3-8 REL300 Zone 1 Extension Scheme. Sub 1 9655A81 Figure 3-9 Inverse Time Overcurrent Ground Backup Logic. 3-33...
  • Page 78 Sub 1 9662A61 Figure 3-10 Loss-of-Potential Logic.
  • Page 79 I.L. 40-385.7 Sub 1 9654A18 Figure 3-11 Loss of Potential Logic (System Diagram). LOI Target 10 SEC To Failure Alarm 0.5 SEC LOIB (YES) JMP4 TRIP Sub 1 9662A62 Figure 3-12 AC Current Monitoring Logic. 3-35...
  • Page 80 I.L. 40-385.7 Sub 1 9661A17 Figure 3-13 Overcurrent Supervision. Sub 2 9655A84 Figure 3-14 Instantaneous Overcurrent Highset Trip Logic. 3-36...
  • Page 81 I.L. 40-385.7 Sub 1 9661A18 Figure 3-15a REL300 Close-Into-Fault Trip (CIFT) and Stub Bus Protection Logic. * Sub 2 9661A32 Figure 3-15b Special Application for CIF Logic with LV Time Delay Pickup. 3-37...
  • Page 82 Sub 1 9658A87 Figure 3-16 REL300 Unequal-Pole-Closing Load Pickup Trip Logic.
  • Page 83 Sub 2 9656A33 Figure 3-17 Load Loss Accelerated Trip Logic.
  • Page 84 Sub 1 1504B05 Figure 3-18a Out-of-Step Block Logic. Sub 1 9654A25 Figure 3-18b Out-of-Step Block Logic (Blinder Characteristics).
  • Page 85 Sub 1 1504B45 Figure 3-19 Reclosing Initiation Logic.
  • Page 86 I.L. 40-385.7 Sub 1 9661A19 Figure 3-20 Single Pole Trip Logic. Sub 1 9661A20 Figure 3-21 Pilot Trip Relay. 3-42...
  • Page 87 I.L. 40-385.7 Sub 2 9654A26 Figure 3-22. POTT/Unblocking Pilot Trip Logic. Sub 1 1504B46 Figure 3-23 Carrier Keying/Receiving Logic in POTT/Unblocking Schemes. 3-43...
  • Page 88 Sub 2 9657A62 Figure 3-24 PUTT Keying Logic.
  • Page 89 Sub 1 1504B89 Figure 3-25 Blocking System Logic.
  • Page 90 I.L. 40-385.7 * Sub 2 9655A86 Figure 3-26 PLTG Supplemented by FDOG. Sub 1 9654A17 Figure 3-27 Power Reversed on POTT/Unblocking Schemes. 3-46...

  • Page 91: Unequal Pole Closing On Fault

    I.L. 40-385.7 Sub 1 9654A29 Figure 3-28 Unequal Pole Closing on Fault. Sub 1 9654A30 Figure 3-29 Additional Logic for POTT/Unblocking Schemes on 3-Terminal Line Application. 3-47...

  • Page 92: Additional Logic For Putt Scheme On 3-Terminal Line Application

    Sub 1 9654A31 Figure 3-30 Additional Logic for PUTT Scheme on 3-Terminal Line Application.

  • Page 93: Reversible Zone 3 Phase And Ground (Reverse Block Logic)

    I.L. 40-385.7 Sub 3 1501B91 Figure 3-31 Weakfeed Application. Sub 6 1501B84 Figure 3-32 Reversible Zone 3 Phase and Ground (Reverse Block Logic). 3-49...
  • Page 94 Sub 2 1504B08 Figure 3-33. Composite Signal For Programmable Output Contacts...
  • Page 95 I.L. 40-385.7 TABLE 3-1 REL300 CATALOG NUMBERS Typical Catalog Number REL300 DIGITAL RELAY SYSTEM (50/60 HZ) TRIP Three Pole Trip Single Pole Trip (consult factory) – Three Pole Trip w/Programmable Contacts * 8 CURRENT INPUT BATTERY SUPPLY VOLTAGE 48/60 Vdc...
  • Page 96 I.L. 40-385.7 TABLE 3-2 REL300 ACCESSORIES 1. FT-14 TEST PLUG • Right-Side 1355D32G01 • Left-Side 1355D32G02 2. TEST FIXTURE AND EXTENDER BOARD • Inner Chassis Test Fixture (5 Amp) 2409F39G01 • Inner Chassis Test Fixture (1 Amp) 2409F39G02 • External Board Assembly...
  • Page 97 I.L. 40-385.7 TABLE 3-4 REL300 PROGRAMMABLE OUTPUT CONTACTS Description Value Z1P trip output Z1G trip output Z2P trip output Z2G trip output Z3P trip output Z3G trip output PLTP trip output PLTP PLTG trip output PLTG High set phase trip output...
  • Page 98 Unscrew the front panel screw. b. If the REL300 does not have FT-14 switches, but has a power switch on the front panel, turn “OFF” the power switch before sliding out the inner chassis.
  • Page 99 All external electrical connections pass through the Backplate (Figure 2-9, page 2-14) on the outer chassis. If the REL300 is used without the FT-14 switch, six 14-terminal connectors on the Backplate (TB1 through TB6) are used. If the FT-14 switch (option) is included, using the two peripheral areas of the REL300 cabinet, then only four of the 14-terminal connectors (TB2 through TB5) are used.
  • Page 100 13mm in size). A software display saver is built in. The REL300 display will be on only for 5 minutes after turn- ing on the dc power supply or depressing any one of the front panel pushbuttons or detecting any fault on the line.
  • Page 101 4.5.1 Settings Mode In order to determine the REL300 settings that have been entered into the system, continually depress the “DISPLAY SELECT” pushbutton until the “SETTINGS” LED is illuminated. Then depress the “FUNCTION RAISE” or “FUNCTION LOWER” pushbutton, in order to scroll through the REL300 SETTINGS functions (see Table 4-1, page 4-16).
  • Page 102 4.5.3 Target (Last and Previous Fault) Mode The REL300 system saves the latest 16 faults records. The “LAST FAULT” information is of the most recent fault, the “PREVIOUS FAULT” information is of the fault prior to the “LAST FAULT”. These displays contain the target information along with the “frozen” data at the time of trip.
  • Page 103 RS1 (Carrier Receiver #1), RS2 (Carrier Receiver #2), RS1, 2 (Carrier Re- ceiver #1 and #2), and “TK” (Carrier Send) for the use of REL300 functional test. Refer to the Non-Pilot Performance Tests (Section 1.1.1, page A-1) for more detailed information. If jumper (JP5) on the microprocessor module is IN, the following ten functions will be shown: •...
  • Page 104 I.L. 40-385.7 For the opto-input hardware check, apply a rated dc voltage to any opto-input terminals. When OPTI in function field is selected on the test mode, a non-zero HEX value will be shown in the value field and is identified as follows: Bit 0 Channel receive contact closure input #1, RX1 Bit 1...
  • Page 105 If a user loses his assigned password, a new password can be in- stalled by turning the REL300 relay’s dc power supply “OFF” and then “ON”. REL300 allows a change of password within the next 15 minutes, by using a default “PASSWORD”.
  • Page 106 4.7.2 Communication Port Options REL300 is supplied with a rear communications port. If the network interface is not specified, a RS-232C (hardware standard) communications port is supplied. Network interface comm. port option allows the connection of the relay with many other devices to a 2-wire network. A detailed discussion of networking capabilities can be found in AD 40-600, Substation Control and Communications Application Guide.
  • Page 107 B & B Electronics Type 232MFNM. SIXTEEN FAULT TARGET DATA The REL300 saves the latest 16 fault records, but only the latest two fault records can be ac- cessed from the front panel. For complete 16 fault data, one of the communication interface devices are necessary.
  • Page 108 Press ENTER again to accept the desired time delay. 4.11 ROUTINE VISUAL INSPECTION With the exception of Routine Visual Inspection, the REL300 relay assembly should be main- tenance-free for one year. A program of Routine Visual Inspection should include: •...
  • Page 109 Remove the Microprocessor module, by loosening six mounting screws, and unplugging the module from the Interconnect module. e. Remove the Option (module), if the option module is part of the REL300 system, by un- screwing 2 mounting screws from the center support bar, and unplugging the Option module from the Interconnect module.
  • Page 110 Sub 8 1354D22 Sheet 4 of 5 Figure 4-1 REL300 Backplate.

  • Page 111: Rel300 Backplane Pc Board Terminal

    Sub 1 1611C78 Figure 4-2 REL300 Backplane PC Board Terminals...
  • Page 112 Sub 3 1502B21 Figure 4-3 REL300 Systems External Connection.
  • Page 113 I.L. 40-385.7 TABLE 4-1. SETTING DISPLAY (SHEET 1 OF 3) Displayed at Function Field Value Field Information/Settings (using 5 A ct and 60 Hz) (SEE NOTE ON SHEET 3) Software version VERS numerical (0,1) Oscillographic data initiation OSC * TRIP/Z2TR/Z2Z3/∆V∆I Fault data initiation FDAT TRIP/Z2TR/Z2Z3...
  • Page 114 I.L. 40-385.7 TABLE 4-1. SETTING DISPLAY (SHEET 2 OF 3) Displayed at Function Field Value Field Information/Settings (using 5 A ct and 60 Hz) (SEE NOTE ON SHEET 3) OUT, 0.01-50.00 in 0.01 Ω steps Zone 1 phase unit OUT, 0.01-50.00 in 0.01 Ω steps Zone 1 ground forward setting Z1GF 0.01 - 50.00 in 0.01 Ω...
  • Page 115 I.L. 40-385.7 TABLE 4-1. SETTING DISPLAY (SHEET 3 OF 3) Displayed at Function Field Value Field Information/Settings (using 5 A ct and 60 Hz) (SEE NOTE) CIF trip/stub bus protection OUT/CF/CFT/STUB/SCF/SCFT LLT trip YES/FDOG/NO LOP block LOPB NO/DIST/ALL LOI Block LOIB YES/NO Alarm 2 (Trip) Seal-In...
  • Page 116 I.L. 40-385.7 TABLE 4-2. METERING DISPLAY Displayed at Information Function Field Value Field Phase A current (mag.) numerical, A (X.X) ∠  Phase A current (ang.) deg. (X.X) Phase A voltage (mag.) numerical, v (XX.X) ∠  Phase A voltage (ang.) deg.
  • Page 117 I.L. 40-385.7 TABLE 4-3. TARGET (FAULT DATA) DISPLAY (SHEET 1 OF 2) Displayed at Function Value Information Field Field Month / Day DATE XX.XX Year YEAR XXXX Hour / Minute TIME XX.XX Second XX.XX Fault type FTYP AG/BG/CG/AB/BC/CA/ ABG/BCG/CAG/ABC BKR.#1 φA tripped BK1A YES/NO BKR.#1 φB tripped...
  • Page 118 I.L. 40-385.7 TABLE 4-3. TARGET (FAULT DATA) DISPLAY (SHEET 2 OF 2) Displayed at Function Value Information Field Field Fault type FTYP AG/BG/CB/AB/BC/CA ABG/BCG/CAG/ABC Fault voltage VA (mag.) numerical, V ∠VPA (ang.) numerical deg. Fault voltage VB (mag.) numerical V ∠VPB (ang.) numerical deg.
  • Page 119 For the rated input dc voltage JMP 7 & 9 For Stub Bus Protection JMP 8 & 10 For the trip alarm (AL2-2) JMP 11 & 12 For REL300 with FT switches only MICROPROCESSOR Module JUMPER POSITION FUNCTION JMP 1...
  • Page 120 F2: Toggle Logic Inputs: – Logic True (T) or Logic Negation (F). Alt + D - Devices Alt + P - Pri/Sec 10/22/92 COM1 = 1200 Sub: Beaver Valley Substation REL300 NOTE: Refer to Table 3-4 for Description of Function. 4-23...
  • Page 121 See Table 4-7 For settings To Modem: 25 pin DTE * A communications cable kit (item identification number 1504B78G01) will accommodate most connection combinations, in Table 4-6, is available through your local ABB representative. TABLE 4-7. DIP SWITCH SETTING CHART Dip Switch Pole...
  • Page 122 ABC or ACB. Remove jumper #3 for system ABC rotation. Con- nect Jumper #3 for ACB system. CALCULATION OF REL300 SETTINGS The following REL300 setting calculations correspond to the setting categories in the Installa- tion Section (4). Assume that the protected line has the following data: • 18.27 miles •...
  • Page 123 I.L. 40-385.7 then REL300 will automatically calculate the zero sequence current compensation factor (k by using the value of ZR, PANG, GANG and equation (1) in section 3.2.1 (page 3-2), i.e., = ZR ∠(GANG-PANG)-1 = (Z 5.1.2 Zone 1 Distance Unit Settings...
  • Page 124 I.L. 40-385.7 Assume that the line charging current is negligible for this line section, and the minimum load current is 2.0 A secondary, then the low set phase overcurrent unit setting should be: IL = 1 b. The medium set phase overcurrent unit is used for supervising the OSB function and all the phase distance units.
  • Page 125 I.L. 40-385.7 a. Setting the Inner Blinder (21BI) If the OSB is used to supervise tripping of the 3φ unit on heavy load current, the inner blind- er 21BI must be set sufficiently far apart to accommodate the maximum fault arc resistance. A reasonable approximation of arc resistance at fault inception is 400 volts per foot.
  • Page 126 I.L. 40-385.7 b. Setting the Outer Blinder (21BO) For slow out-of-step swings, a reasonably close placement of outer to inner blinder char- acteristic 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 127 I.L. 40-385.7 For better sensitivity, GBPU should be set at 0.5 amperes, this would be adequate for most of the application. c. GTC is the time delay setting of the GB unit. As shown in Figures 2-1 thru 2-7, it has 63 setting selections, from 1 to 63 in 1.0 steps.
  • Page 128 Its range is 400 to 4000 ms, in 16 ms steps. For example, set REL300 OSOT = 500 if OSB override time of 500 ms is required. d. For single-pole trip application only, the single phasing limit timer setting (62T) is for pre-...
  • Page 129 I.L. 40-385.7 SELECTION OF REL300 SETTINGS The following settings are determined by the application. They do not require calculation. 5.2.1 The OSC setting For selecting one of the 4 ways (TRIP/Z2TR/Z2Z3/∆I∆V) to initiate the oscillographic data tak- en, where: TRIP —...
  • Page 130 5.2.15 The STYP (system type) selects the desired relaying system for the application. It has two selections: 3ZNP (3 zone non-pilot) and Z1E (Zone 1 extension) in the non-pilot REL300. There are five selections: 3ZNP, Z1E, POTT (permissive overreach transfer trip or unblocking), PUTT (per-...
  • Page 131 5.2.27 The LV units are used in CIFT, SPT and weakfeed logic in the REL300. They should normally be set to 40 volts unless a higher setting is required for more sensitive applications. Refer to Section 5.2.11 for the SPT application.
  • Page 132 5.2.35 Set the SETR to YES if remote setting is required. 5.2.36 Procedure to set the real-time clock: With REL300 in the “setting” mode, scroll the function field to TIME, and set the value to YES. Depress function pushbutton RAISE to display YEAR, MNTH (month, DAY, WDAY (week day), HOUR, and MIN (minute), and set the corresponding number via the value field.
  • Page 133 OC8 provide timers for delay pickup and/or delay dropout. The ranges of timers are 0 to 5 seconds in 0.01 second steps. TABLE 5-1 . CURRENT TRANSFORMER SETTINGS REL300 UNITS At CTYP = 5 At CTYP = 1 Z1P/Z1G/Z2P/Z2G 0.01-50.00,...
  • Page 134 I.L. 40-385.7 TABLE 5-2 . RECLOSING INITIATION MODE PROGRAMMING TTYP TYPE OF FAULT RECLOSING MODE no reclosing φG RI2 contact closes; Other Faults no reclosing φG, φφ RI2 contact closes; 3φ no reclosing RI2 contact closes Phase-to-ground RI1 contact closes; Other Faults no reclosing SR3R...
  • Page 135 I.L. 40-385.7 Appendix A. FULL PERFORMANCE TESTS (V2.71) The following kinds and quantities of test equipment are used for the REL300 Acceptance Tests: • Voltmeter (1) • Ammeter (1) • Phase Angle Meter (1) • Load Bank (2) • Variac (3) •...
  • Page 136 I.L. 40-385.7 1.1.1 Non-Pilot Performance Tests To prepare the REL300 relay assembly for Non-Pilot Acceptance Tests, connect the REL300 per Figure B-1, Configuration 1(page B-6). 1.1.1.1 Front Panel Check Step 1. Turn on rated battery voltage. Check the FREQ setting to match the line frequency and ct type CTYP.
  • Page 137 • Voltage ( ∆Van, ∆Vbn, or ∆Vcn ) >7V and 12.5% change with a current change of ∆I>0.5 A When one of the above is true, REL300 starts fault processing. In order to perform the above, apply a certain value of current suddenly. If REL300 does not trip, turn the current off, readjust to a higher value, and then suddenly reapply current.
  • Page 138 I.L. 40-385.7 Repeat AG fault and measure the trip time, which should be < 2 cycles. Change the setting of T1 from 0 to 2. Repeat the test; the trip time should extend for an additional 2 cycles. Reset T1 to zero.
  • Page 139 I.L. 40-385.7 ----------------------------------------------- - 6.96 57.76 x – Step 10 (b). Repeat Step 10 (a) except apply the fault angle of 30° and the trip current should be I = 5.65∠−30°. The distance should be 3.18 ohms (± 5%). Step 10 (c). Repeat Step 10 (a) and 10 (b) except for the setting of Z1GR = 4.5 and the trip currents should be Ia = 4.0∠−75°, Ia = 4.0 ∠−30°...
  • Page 140 I.L. 40-385.7 a. Using T-connection (with Doble or Multi-Amp Test Unit; refer to B-3 for external terminal connection and configuration 1. • V = 1/2 V @ 0° • V = 1/2 V @ 180° • V = 3/2 (70) = 105V @ 90° lead Using V = 30V •...
  • Page 141 I.L. 40-385.7 ------------------------------------------------------- - PANG X – From Table A-1: = 4.5 Ω • Z • PANG = 75 ° For Y-connection only, current (IA) required to trip = 3.33A ±5%, with an angle of -45°, because Ian has already lagged V ) by 30°.
  • Page 142 I.L. 40-385.7 • Z2RI “YES” (Zone 2 reclosing) • TTYP “3PR” (Reclosing mode) Step 16. Perform Steps 10 thru 14 (above) for Zone 2 only, using delayed trip times accord- ing to the zone 2 phase timer (T2P), and the Zone 2 ground timer (T2G). Toleranc- es for T2P and T2G are 5% for an input current that is 10% above the calculated value.
  • Page 143 I.L. 40-385.7 Repeat Step 10 again. The RI2 contacts 1 and 2 should be open and the RB contacts 1 and 2 should be closed. Step 19. Set Z3FR = REV, then repeat Step 10 (c), except apply AG reversed fault. The re- lay should trip, at I = 4.2A, for the angles of -110°, -190°...
  • Page 144 I.L. 40-385.7 ZIGF Z2GF Z3GF 75 ο PANG GANG Z1GR = Z2GR = Z3GR 0.01 a. Single-Phase-to-Ground Fault Use the equation in Step 10, and the following input voltages: ∠ 45 0° ∠ – 120° ∠ 70 120° The single-phase trip currents for Zone 1, Zone 2, and Zone 3 at the maximum torque angle ∠...
  • Page 145 Using Figure B-3, to connect currents and voltages, apply AB fault as shown in Step 1.1.5. The REL300 should trip at Iab = 10 Amps ±5%, with a target of ITP - AB. Apply a 15A reversed fault current (i.e., I leads V by 135°...
  • Page 146 , K, C, P and R are constants, and are shown in Table A-2. Step 24. For a Zero Sequence Directional unit (DIRU = ZSEQ), the tripping direction of REL300 is: the angle of 3I leads 3V between +75° and +255°. Change the setting of GDIR to “YES”.
  • Page 147 I.L. 40-385.7 • +165° (± 87°) • -108° For a Negative Sequence Directional Unit (DIRU = NSEQ), the tripping direction of REL300 is: leads V by a value between +8° and +188°. The relay should trip at the following angles: •...
  • Page 148 I.L. 40-385.7 Trip (CIF) and Stub-Bus Protection (SBP) Logic), for the application of CFT setting. Reset CIF = CF. Step 27. LV setting test. Set LV = 60 and with I = 4A, apply AG fault as shown in Step 10. <60 Vrms ±...
  • Page 149 • a 3Vo (> 7Vrms) is detected with 3Io <Ios • Apply V and V rated voltage to REL300. Scroll the LED to metering mode; the display shows LOPB = NO. Reduce VAN to 62 Vrms (e.g., 3V = 8V).
  • Page 150 I.L. 40-385.7 of 1.1A to I . After approximately 10 seconds, the “Relay In Service” LED will be turned off, and the (GS) contact will be closed. Step 34. Increase I to 1.5A. Depress the DISPLAY SELECT pushbutton and change to the metering (VOLTS/AMPS/ANGLE) mode.
  • Page 151 1.1.2 PILOT PERFORMANCE TESTS To prepare the REL300 relay assembly for Pilot Acceptance Tests, connect the REL300 per Figure B-1, Configuration 1 (Page B-6) sub 13 or higher, three Reed relays are used to replace the mercury relays for GS, Carrier STOP and SEND. Check jumpers JMP1 (STOP) and JMP2 (SEND) for NO or NC output contact selection.
  • Page 152 I.L. 40-385.7 1.1.2.2 Blocking (BLK) Scheme Step 3. Change the STYP setting to BLK. Apply a rated dc voltage to RCVR #1 terminals TB5/7(+) and TB5/8(-). Check the metering mode for RX1 = YES. Apply an AG fault as shown in Step 10 of the Non-Pilot Acceptance Test (i.e., V = 30 volts and I 4 Amps).
  • Page 153 I.L. 40-385.7 1.1.2.3 PUTT or POTT Schemes Step 10. Change the setting to STYP = PUTT (for underreach scheme) or STYP = POTT (for overreach scheme). In order to determine setting accuracy (6 ohms), the for- ward directional ground unit must be disabled. Set FDGT = BLK. Apply a rated volt- age to RCVR #1 terminals TB5/7(+) and TB5/8(-), and apply an AG fault as shown in Step 10 of the Non-Pilot Acceptance Test.
  • Page 154 The fault current should be 20% greater than the calculated values for the tests in these steps. The “fault types” applied to the REL300 relay are shown in Table A-3 (column 2). TTYP settings are shown in column 1, whereas the results of RI, Trip, and BFI contacts are shown in columns 3, 4, and 5, respectively.
  • Page 155 I.L. 40-385.7 1.1.4.1 Condition OSB = NO Step 1. Set the relay per Table A-1(page A-27), except for the following settings: • Z1P = 10 • Z2GF = 20 • Z1GF = 10 • Z2GR = 0.01 • Z1GR = 0.01 •...
  • Page 156 Z1P = ABC. The trip time should be <2 cycles. ACCEPTANCE/MAINTENANCE TESTS Maintenance qualification tests will determine if a particular REL300 unit is working correctly. Refer to the WARNING note on page A-1 before energizing the relay.
  • Page 157 I.L. 40-385.7 30 ∠0° 70 ∠-120° 70 ∠120° ∠-75° suddenly. The relay should trip for I Apply forward fault current I 4A ± 5%. The display should show “Z1G AG”. Repeat for B and C phases per the following table: Phase B Phase C 70 ∠120°...
  • Page 158 I.L. 40-385.7 1.2.1.4 OPTO-Input Check Step 7. Before applying the input voltages, check the jumper positions on the Inter-connect module for the rated voltage selections and check JMP7 and JMP9 for the STUB (SBP) input test. On the Microprocessor module, remove JMP12 (spare) and place it in the JMP5 position.
  • Page 159 • OC 1 to OC8 (Optional) Remove JMP 5 and place it in JMP12. 1.2.2 Pilot Maintenance Test Connect the REL300 per Figure B-1, Configuration 1. 1.2.2.1 Basic Function Test Step 1. Repeat Step 1 thru 8 in the Acceptance Maintenance Test (page A-22, 1.2.1.1 thru 1.2.1.5).
  • Page 160 I.L. 40-385.7 Step 3. Receivers 1 and 2 Apply a dc voltage to PLT ENA terminals TB 5/9(+) and TB5/10(-). a. Block Systems Only Change the STYP setting to BLK. Apply a forward fault as shown in the Non-Pilot Mainte- nance test, Step 5.
  • Page 161 1.50 NOTE: This REL300 settings table is for 60 Hz and 5A ct systems. For 1A ct, change PLT, PLG, Z1P, Z1G, Z2P, Z2G, Z3P, Z3G, RT, RU by multiplying a factor of 5, and all current val- ues mentioned in the text should be multiplied by a factor of 0.02.
  • Page 162 I.L. 40-385.7 Table A-3. Fault Types Applied To REL300 OUTPUT CONTACTS SETTING FAULT TYPE TTYP APPLIED TRIP A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C...
  • Page 163 I.L. 40-385.7 Appendix B. ACCEPTANCE/MAINTENANCE TESTS Maintenance qualification tests will determine if a particular REL300 unit is working correctly. Refer to the WARNING note in Appendix A (page A-1) before energizing the relay. Non-Pilot Maintenance Tests It is recommended that either Doble or Multi-Amp test equipment should be used for this test.
  • Page 164 I.L. 40-385.7 ∠-75° suddenly. The relay should trip for I Apply forward fault current I 4A ± 5%. The display should show “Z1G AG”. Repeat for B and C phases per the following table: Phase B Phase C 70 ∠120° 70 ∠-120°...
  • Page 165 I.L. 40-385.7 Change the LED mode to “TEST” and select the function field to OPTI. Apply a rat- ed voltage to TB5 appropriate terminals and a non-zero HEX value should be shown on the right-hand side display as follows: Term Function Value (TB5)
  • Page 166 I.L. 40-385.7 Pilot Maintenance Test Connect the REL300 per Figure B-1, Configuration 1. 1.2.1 Basic Function Test Step 1. Repeat Step 1 thru 8 in the Non-Pilot Maintenance Test, page B-1 (1.1.1 thru 1.1.5). 1.2.2 Input Opto-Coupler Check The following test steps 2 and 3 are optional since the OPTO inputs PLT-ENA, RCVR-1 and RCVR-2 have been checked in Section 1.1.4 (page B-11).
  • Page 167 I.L. 40-385.7 Apply a rated dc voltage to RCVR #1 terminals TB 5/7 (+) and TB 5/8(-). Repeat the test. The relay should not trip. Move the dc voltage from RCVR #1 to RCVR #2 terminals TB 5/ 11(+) and TB 5/12(-), and repeat this test for RCVR #2. b.

  • Page 168: Test Connection For Single-Phase-To-Ground Faults (Sheet 1

    Sub 1 1502B51 Figure B-1 Test Connection for Single-Phase-to-Ground Faults (Sheet 1 of 4)

  • Page 169: Test Connection For Three-Phase Faults (Sheet 2

    Sub 1 1502B51 (Sheet 2 of 4) Figure B-2 Test Connection for Three-Phase Faults...

  • Page 170: Test Connection For Phase-To-Phase Faults (Sheet 3

    Sub 1 1502B51 Figure B-3 Test Connection for Phase-to-Phase Faults (Sheet 3 of 4)

  • Page 171: Test Connection For Dual Polarizing Ground Directional Unit (Sheet 4

    Sub 1 1502B51 Dual Figure B-4 Test Connection for Polarizing Ground Directional Unit (Sheet 4 of 4)

  • Page 172: Rel300 With Out-Of-Step Block Option

    INPUTS: Va = 40 ∠0˚, Vb = 40 ∠-120˚, Vc = 40 ∠120˚ SETTINGS: PANG = 75˚, GANG = 75˚, ZR = 3 Sub 1 9651A71 ABC FAULT WITH FAULT ANGLE OF 45˚ Figure B-5 REL300 with Out-of-Step Block Option B-10...
  • Page 173 1.50 NOTE: This REL300 settings table is for 60 Hz and 5A ct systems. For 1A ct, change PLT, PLG, Z1P, Z1G, Z2P, Z2G, Z3P, Z3G, RT, RU by multiplying a factor of 5, and all current val- ues mentioned in the text should be multiplied by a factor of 0.02.
  • Page 174 I.L. 40-385.7 Table B-3. Fault Types Applied To REL300 SETTING FAULT TYPE OUT CONTACTS TTYP APPLIED TRIP A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C A,B,C...
  • Page 175 I.L. 40-385.7 INDEX TO NOMENCLATURE Numerics ....Section Number 3-Pole trip, reclosing on single-phase-to-ground faults ..3.4.14, Table 3-3, 5.2.10 21BI Inner Blinder for out-of-step application .
  • Page 176 Frequency setting selected (50Hz or 60Hz) ....FTYP REL300 fault type ......GANG Zero sequence line impedance angle setting .
  • Page 177 I.L. 40-385.7 Pre-fault load angle ......Low voltage pickup setting for CIF and weakfeed application..3.4.7, 3.20 NOVRAM Non-volatile read-write memory .
  • Page 178 I.L. 40-385.7 Enable readouts in primary values ....4.5.2, 5.2.7 Test function for simulating receipt of receiver 1 input ..3.5.1f, A (1.2.2) RS1.2 Test function for simulating receipt of receiver 1 and 2 inputs .
  • Page 179 I.L. 40-385.7 WFEN Weakfeed Enable ......3.8.3, 3.20 Weakfeed Trip ......3.8.3, 3.20 XPUD Primary Reactance ohms per unit distance .
  • Page 180 REL300 Block Diagram - - - - - - - - - - - - - (sheet 1 of 4) - - - - - - - - - - - - - - - - - - - -...

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