Technical data

ManualsBrandsABB ManualsAdapterSPA-ZC 400

Feeder Terminal

Buyer’s Guide

REF 541,

REF 543,

REF 545.

Summary of content (76 pages)

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Feeder Terminal Buyer’s Guide REF 541, REF 543, REF 545.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Issued: June 1999 Status: Updated Version: F/06.07.2005 Data subject to change without notice Features • Feeder terminal for protection, control, measurement and supervision of medium voltage networks. • Additional functions including synchrocheck, frequency protection, capacitor bank protection and control. • Voltage and current measurement via conventional measuring transformers or current sensors and voltage dividers.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Application The REF 541, REF 543 and REF 545 feeder terminals are designed to be used for protection, control, measurement and supervision of medium voltage networks. They can be used with different kinds of switchgear including single busbar, double busbar and duplex systems. The protection functions also support different types of networks such as isolated neutral networks, resonant-earthed networks and partially earthed networks..
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG and reactive power and power factor. In addition, other measurement functions are available. As a standard feature the REF 54_ terminal includes pulse counter inputs. The number of pulse inputs varies from 7 (REF 541) to 10 (REF 545) according to the REF variant. Disturbance recorder The transient disturbance recorder is able to record 16 current or voltage waveforms and 16 logic digital signals.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Other functions Low auxiliary voltage indication The REF 54_ feeder terminal is provided with a low auxiliary voltage indication feature. The power supply module issues an internal alarm signal when a drop in the power supply voltage is detected (ACFail, active low). The alarm signal is activated if the power supply voltage falls about 10% below the lowest rated DC input voltage of the power supply module.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG determine the oscillation level and hysteresis for all digital inputs. Event is generated in case oscillation is detected. Attributes of a digital input for feeder terminal configuration For each digital input, the status of the input (value), the time tag for the status change (time) and the validity of the digital input (invalidity) can be issued by the attributes.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG • optically isolated serial communication port • backlight and contrast control • freely programmable button (F) which can be used in the configuration of the feeder terminal • a button for remote/local control HMI has two main levels, the user level and the technical level. The user level is for “everyday” measurements and monitoring whereas the technical level is intended for advanced feeder terminal programming.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Feeder terminal configuration Lon network configuration The Relay Configuration Tool, based on the IEC 61131-3 standard, is used for configuring the basic terminal, protection and logic function blocks, control and measurement functions, timers and other functional elements included in the logic functions category. The LON Network Tool is used for binding network variables between RED 500 terminals.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Profibus is available through the SPA-ZC 302 Gateway and IEC 61850 is available through the SPA-ZC 400 Ethernet Adapter The digital input and output contacts of the feeder terminal are connected to the multipole connectors. The serial interface RS-485 on the rear panel is used for connecting the feeder terminal to the SPA bus or the LON bus.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG + Q1 + + Q2 A Q0 + L3 0 N Q3 n *) + L1 a Q9 X4.1 dn PS1_4_TempAlarm X1.1 27 P1 L1 L3 25 24 S1 22 21 S2 P2 + Mains 1 2 - PS1_4_ACFail da 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 S1 S2 100V Ch 10, VT4 100V Ch 9, VT3 100V Ch 8, VT2 100V Ch 7, VT1 SERIAL BUS 0,2A 1A 1A 5A 1A 5A 1A 5A 1A 5A Ch 2, CT1 DIFF Ch 10, sensor DIFF Ch 9, sensor DIFF Ch 8, sensor X2.3 X2.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG + Q1 + + Q2 A Q0 + L3 0 N Q3 n *) + L1 a Q9 da L1 L3 25 24 S1 22 21 S2 P2 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 S1 S2 Mains 100V Ch 10, VT4 100V Ch 9, VT3 100V Ch 8, VT2 100V Ch 7, VT1 0,2A 1A X2.4 X2.5 X2.6 X2.7 X2.8 X2.9 - - 4 5 6 - 7 8 9 - 10 11 12 1A 5A Ch 4, CT3 1A 5A X3.2 X3.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG X6.1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 SHUNT + - X6.2 DIFF SHUNT + DIFF + - DIFF RTD1_6_AI1 RTD1_6_AO1 + mA- 11 12 RTD1_6_AO2 + mA- 13 14 RTD1_6_AI3 RTD1_6_AO3 + mA- 15 16 RTD1_6_AI4 RTD1_6_AO4 + mA- 17 18 RTD1_6_AI2 SHUNT SHUNT + DIFF + - DIFF SHUNT RTD1_6_AI5 X6.2 1 2 3 4 5 6 7 8 9 10 SHUNT + DIFF + - DIFF RTD1_6_AI6 SHUNT SHUNT + DIFF RTD1_6_AI7 RTD1_6_AI8 A050205 Fig.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Technical data . Table 1: General functions Function Description INDRESET Resetting of operation indicators, latched output signals, registers and waveforms i.e. the disturbance recorder MMIWAKE Activation of HMI backlight SWGRP1 Switchgroup SWGRP1 SWGRP2 Switchgroup SWGRP2 SWGRP3 Switchgroup SWGRP3 ... ...
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Feeder Terminal REF 541, REF 543, REF 545.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG . Table 4: Control functions Function ANSI IEC symbol device no.
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Feeder Terminal REF 541, REF 543, REF 545.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Table 5: Measurement functions Function ANSI IEC device no.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Analogue output on RTD/analogue module, MEAO1...4 (AO1...AO4) The analogue output function blocks handle the scaling of any internal REAL type IEC 61131-3 based signal to fit a selectable 0…20 mA or 4…20 mA range for use with the outputs on the RTD/analogue module. General REAL type input -10000.00000...10000.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Table 6: Protection functions Function ANSI IEC device no.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Settings of protection functions Three-phase non-directional overcurrent protection, low-set stage, NOC3Low, 3I> (51-1) Start current Operate time at DT mode Time multiplier at IDMT mode Operation mode Measuring mode Drop-off time of the operate time counter Operation accuracy Start time Reset time Reset ratio, typically Retardation time Operate time accuracy at DT mode Accuracy class index E at IDMT mode 0.10…5.00 x In 0.05…300.00 s 0.05…1.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Three-phase directional O/C function, low-set stage, DOC6Low, 3I>→ (67-1) Operation mode Start current Operate time Time multiplier Basic angle ϕb Operation direction Earth-fault protection Measuring mode Drop-off time of the operate time counter Operation accuracy Start time Reset time Reset ratio, typically Retardation time Operate time accuracy at DT mode Accuracy class index E at IDMT mode Not in use; Definite time Extremely inv.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Operation accuracy Start time Reset time Reset ratio, typically Retardation time Operate time accuracy at DT mode Note! The values below apply when f/fn = 0.95...1.05 0.1...10 x In: ±2.5% of set value or ±0.01 x In 10...40 x In: ±5.0% of set value ±2.5% of measured voltage or ±0.01 x Un ±2° Injected currents > 2.0 x start current: internal time < 42 ms total time < 50 ms 40...
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Operation accuracy Start time Reset time Reset ratio, typically Retardation time Operate time accuracy at DT mode Note! The values below apply when f/fn = 0.95...1.05 ±2.5% of set value or + 0.01 x In Injected currents > 2.0 x start current: internal time < 32 ms total time < 40 ms 40...1000 ms (depends on the minimum pulse width set for the trip output) 0.
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Feeder Terminal REF 541, REF 543, REF 545.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Residual overvoltage protection, high-set stage, ROV1High, Uo>> (59N-2), and instantaneous stage, ROV1Inst, Uo>>> (59N-3) Start voltage Operate time Operation mode Measuring mode Operation accuracy Start time Reset time Reset ratio, typically Retardation time Operate time accuracy at DT mode 2.0…100.0% of Un 0.05…300.00 s Not in use Definite time Peak-to-peak Fundamental frequency Note! The values below apply when f/fn = 0.95...1.05 ±2.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Three-phase thermal overload protection for motors, generators and transformers, TOL3Dev, 3Ithdev> (49M/G/T) BASIC SETTINGS Starting current of the motor Max.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Three-phase overvoltage protection, low-set stage, OV3Low, 3U> (59-1) Start voltage Operate time Time multiplier Operation mode Measuring mode Operation hysteresis Operation accuracy Start time Reset time Reset ratio Retardation time Operate time accuracy at DT mode Accuracy class index E at IDMT mode, typically 0.10…1.60 x Un 0.05…300.00 s 0.05…1.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Operation accuracy Start time Reset time Reset ratio Retardation time Operate time accuracy at DT mode Accuracy class index E at IDMT mode, typically Note! The values below apply when f/fn = 0.95...1.05 ±35 ms Injected voltages < 0.5 x start voltage: internal time < 32 ms total time < 40 ms 40...1000 ms (depends on the minimum pulse width set for the trip output) 1.04 (range 1.01...1.05) < 60 ms ±2.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Operation accuracy Trip time Reset time Reset ratio, typically Retardation time Operate time accuracy Note! The values below apply when f/fn = 0.95...1.05 ± 2.5% of set value or ± 0.01 x Un U2> operation: Injected negative-seq. voltage = 1.1 x start value: internal time < 42 ms total time < 50 ms U1< operation: Injected positive-seq. voltage = 0.50 x start value: internal time < 32 ms total time < 40 ms U1> operation: Injected positive-seq.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Start-up supervision for motors, MotStart, Is2t n< (48) Start current (for motor) Start time (for motor) Time-based restart inhibit limit Countdown rate of the time counter Stalling time permitted for rotor Operation mode 1.0...10.0 x In 0.3...250.0 s 1.0...500.0 s 2.0...250.0 s/h 2.0...120.0 s Not in use I2 t I2t & Stall Start counter (Read-only parameter) 0...99999 Time to restart enable (Read-only parameter) 0...
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Current unbalance protection for shunt capacitor banks, CUB1Cap, dI>C (51NC-1) Operation mode Not in use; Definite time; Extremely inv.; Very inv.; Normal inv.; Long-time inv.; RI-type inv.; RD-type inv. Alarm mode Normal mode; Element counter Start current of the tripping stage 1.0...100.0%dIn Operate time of the tripping stage in DT mode 1.0...300 s Time multiplier k for the tripping stage in 0.05...2.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Three-phase current unbalance protection for H-bridge connected shunt capacitor banks, CUB3Cap, 3dI>C (51NC-2) Operation mode Not in use; Definite time; Extremely inv.; Very inv.; Normal inv.; Long-time inv.; RI-type inv.; RD-type inv. Start current of the tripping stage 1.0...100.0% dIn Operate time of the tripping stage in DT mode 1.0...300 s Time multiplier k for the tripping stage in 0.05...2.0 IDMT mode Start current of the alarm stage 1.0...
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Phase discontinuity protection, CUB3Low, Iub> (46) Start unbalance Operate time Operation mode 10.0…95.0% 1.0…300.0 s Not in use Definite time Operation accuracy Start time Reset time Reset ratio, typically Retardation time Operate time accuracy at DT mode Note! The values below apply when f/fn = 0.95...1.05 ±2.5% of set value or ±1% unit internal time < 95 ms total time < 100 ms 40...
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Settings of power quality functions Current waveform distortion measurement, PQCU3H, PQ 3inf (PQ 3inf) The current waveform distortion measurement PQCU3H is used for measurement and statistical analysis of current waveform distortion. The standards concerning voltage distortion measurement are applied to current distortion measurement in PQCU3H. Data collection and analysis is done according to EN 50160.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Monitored values THD (3 sec and 10 min mean values) 0.0 ... 120.0% Harmonic components from 1st to 13th (3 sec mean values) 0.0 ... 120.0% Un Harmonic components from 2nd to 13th (10 min mean values) 0.0 ... 120.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Table 8: Energizing inputs Voltage inputs Sensor inputs, max 9 rated voltage 100 V/110 V/115 V/120 V (parameterization) voltage withstand, continuously 2 x Un (240 V) burden at rated voltage <0.5 VA AC voltage range 9.4 V RMS DC voltage range ±13.3 V input impedance > 4.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Table 10: Digital inputs Power supply version PS1/240 V (High) PS1/240 V (Medium), PS2/240 V PS1/48 V (Low), PS2/48V Input voltage, dc 220 V 110/125/220 V 24/48/60/110/125/ 220 V Operating range, dc 155…265 V 80...265 V 18...265 V Current drain ~2…25 mA Power consumption/input <0.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Table 13: Power outputs Max system voltage 250 V ac/dc Continuous carry 5A Make and carry for 0.5 s 30 A Make and carry for 3 s 15 A Breaking capacity when control circuit time constant L/R <40 ms, at 48/110/220 V dc 5 A/3 A/1 A Minimum contact load 100 mA, 24 V ac/dc (2.4 VA) TCS (Trip Circuit Supervision) Control voltage range 20…265 V ac/dc Current drain through the approx. 1.5 mA (0.99…1.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Table 17: Electromagnetic compatibility tests The EMC immunity test level fulfills the requirements listed below 1 MHz burst disturbance test, class III, IEC 60255-22-1 common mode 2.5 kV differential mode 1.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Table 18: Data communication Rear interface, connector X3.1 not used, reserved for future purposes Rear interface, connector X3.2 RS-232 connection RER 123 fibre-optic Bus Connection Module protocols SPA, IEC_103, DNP 3.01), Modbus1) RER 133 RS-485 Bus Connection Module protocols DNP 3.0 2), Modbus 2) data transfer rates DNP 3.0 and Modbus: 300 bps...19.
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Feeder Terminal REF 541, REF 543, REF 545.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Ordering The following is to be specified when ordering REF 54_ terminals: order number, display language combination and quantity of feeder terminals. Each REF 54_ feeder terminal has a specific order number that identifies the feeder termi- nal type as well as the hardware and the software as described below. The order number is labelled on the marking strip on the front panel of the feeder terminal delivered, e.g. Order No: REF543KC127AAAA.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG The REF 541, REF 543 and REF 545 feeder terminals differ from each other as to the number of digital inputs and outputs as follows. Terminals can optionally be ordered with an ANSI front panel.
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Feeder Terminal REF 541, REF 543, REF 545.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Functionality levels, protection functions FUNCTIONALITY LEVELS ANSI Code IEC Symbol Function Code REF541/3/5 CONTROL REF541/3/5 BASIC REF541/3/5 MULTI LOAD SHEDDING AND RESTORATION 81-1 f1 Underfrequency or overfrequency inc. rate of change, stage 1 Freq1St1 X 81-2 f2 Underfrequency or overfrequency incl. rate of change, stage 2 Freq1St2 X 81-3 f3t Underfrequency or overfrequency incl.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Functionality levels, other functions FUNCTIONALITY LEVELS ANSI Code IEC Symbol Function Code REF541/3/ REF541/3/ 5 5 BASIC CONTROL REF541/3/ 5 MULTI 3U_B 3U_B Three-phase voltage, B stage MEVO3B X X X Uo Uo Residual voltage MEVO1A X X X Uo_B Uo_B Residual voltage, B stage MEVO1B X X X MEPE7 X X X MEFR1 X X X MEDREC16 X X X ENERGY / POWER PQE PQE f f Three-phase power and energy (incl.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Functionality levels, other functions FUNCTIONALITY LEVELS ANSI Code IEC Symbol Function CO3DC1 CO3DC2 I<->O 3DC1, 3DC2 Three state disconnector 1, CO3DC1...2 2 (3 state inputs / 4 control outputs) X X X Object indication 1…8 (2 state inputs) COIND1…8 X X X COIND1… I<->O 8 IND1...
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Optional functionality Function Code Ordering number ANSI device no.
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Feeder Terminal REF 541, REF 543, REF 545.
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Feeder Terminal REF 541, REF 543, REF 545.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG REF543K_133BAAA REF543K_133CAAA REF543K_133AABA REF543K_133BABA REF543K_133CABA REF543K_133AAAB REF543K_133BAAB REF543K_133AABB REF543K_133BABB Order number REF543K_133AAAA Hardware modules of REF 545 9 9 9 9 9 Current transformer 1/5 A 4 4 4 4 4 4 4 4 4 4 Current transformer 0.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Parts and assembly descriptions To achieve the best possible operation accuracy, all parts of a REF 54_ product have been calibrated together. Thus, each product forms a whole for which no separate spare parts can be supplied. In the event of malfunction, please consult your feeder terminal supplier.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Application examples MF 3I > 50/51 MCS I0 > 50N/51N TCS * /62 CBCM CBFP q 90V SPAU 341 q 0 I R REF 54_ U 000 U R 000 R 000 p> 3 DI > 87T CBFP * /62 SPAD 346C 50/51 MCS 51B TCS 3U > 59 CBCM CBFP * /62 3I > 3I~harm 3U~harm 000 0 3I > & I REA 101 R P 3I Q 3U MF M Fig.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG 3I > 50/51 MCS I0> 50N/51N TCS * /62 CBCM MF CBFP 90V 3D I > q CBFP p> I U SPAU 341 q 0 R REF 54_ U 000 R 000 R 000 87T * /62 SPAD 346C q 50/51 MCS 51B TCS U0> 59N CBCM 3U > 59 CBFP * /62 3I > 3U~harm 0 3I > & I REA 101 R P 3I~harm MF 000 Q 3I 3U U0 M M REF 54_ I0 E EXINFDR3 Fig.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG M M 50/51 MCS 67N TCS I0-0> 51N CBCM 3I2f > 68 DI> 46 f< 81U 3I > 000 MF I0> 0 I CBFP REF 54_ 0 I R P 3I I0 3U 79 * /62 E EXFDR1 Fig. 9 56 An REF 54_ feeder terminal used for the protection, control, measurement and supervision functions of a utility feeder (main single-line diagram presentation). The neutral point of the supplying network is isolated.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG 3U > 59 MCS 3U < 27 TCS U0> 59N f< 81U 000 R U0 3U > 59 MCS 3U < 27 TCS U0> 59N f< 81U 3U R U0 f REF 54_ 000 3U f REF 54_ EXMEAS1 Fig. 10 REF 54_ feeder terminals used for the protection, control, measurement and supervision functions of a utility/industrial measurement cubicle (main single-line diagram presentation). The neutral point of the supplying network is isolated.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG MF 3I > 50/51 MCS I0> 50N/51N TCS U0 > 59N CBCM CBFP * /62 90V U 3D I > R 000 R 000 87T CBFP p> I U SPAU 341 q 0 R REF 54_ q 000 * /62 SPAD 346C 3I > 3I> MF MF 50/51 MCS 51B TCS 67 CBCM I0> 50N/51N SYNC 25 3U > 59 CBFP * /62 3I~harm 3U~harm 000 0 3I > & I REA 101 R P 3I Q 3U I0 E REF 54_ EXINFDR4 Fig.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG MF 3I> 67 MCS I0> 67N TCS 3 49F CBCM SYNC 25 f< 81U 3U > 59 3U < 27 CBFP * /62 REF 54_ 000 0 I R P 3I Q 3U pf f E EXFDR3 3I > & REA 101 Fig. 12 An REF 54_ feeder terminal and an REA arc monitoring system (main single-line diagram presentation) used for the protection, control, measurement and supervision functions of a utility/industrial ring/meshed network cable feeder.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG 50/51 MCS 50N/51N TCS 3I2f> 68 CBCM DI> 46 CBFP * /62 3I > 000 MF I0> REF 54_ 0 I R P 3I E 3U EXFDR4 Fig. 13 60 An REF 54_ feeder terminal used for the protection, control, measurement and supervision functions of a utility/light industrial cable feeder (main single line diagram presentation). The earthing of the supplying network can be of low or high impedance type.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG MF 3I > 50/51 MCS I0> 50N/51N TCS I02f> 68 CBCM CBFP * /62 0 I R REF 54_ U q q 000 90V U SPAU 341 p> 3D I > 87T DI0> 87N DI0> 87N CBFP * /62 R 000 R 000 SPAD 346C 67 MCS I0 > 50N/51N TCS SEF 51N CBCM 3U > 59 3U < 27 f< 81U CBFP * /62 3I> MF 3I~harm 3U~harm 000 0 3I > & I REA 101 R P 3I pf 3U f E REF 54_ EXINFDR2 Fig.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG 3I > 50/51 MCS I0> 50N/51N TCS SEF 51N CBCM 3I2f> 68 DI> 46 f< 81U 000 MF 0 I CBFP REF 54_ Fig. 15 62 0 I R P 3I E 3U 79 * /62 EXFDR2 An REF 54_ feeder terminal used for the protection, control, measurement and supervision functions of a utility feeder (main single-line diagram presentation). The neutral point of the supplying network is earthed via a low resistance.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG 3U> 59 MCS 3U< 27 TCS U0 f 3I> 50/51 MCS I0 > 51N TCS 3I>3I< 51C,37C, 68C CBCM DI> 51NC CBFP 62BF DI I0 REF 54_ 3I asynmot1REFa REF 54_ Fig.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG 3U> 59 MCS 3U< 27 TCS U1< 27 U2 > 47 U1> 59 U0 f REF 54_ 3I> 50/51 MCS I0 > 51N TCS DI > 46 Is t, n< 3 CBFP M REF 54_ Fig.
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Feeder Terminal REF 541, REF 543, REF 545.
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Feeder Terminal REF 541, REF 543, REF 545.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG = energy counter, forward or reverse active / reactive energy E 3I~harm = current waveform distortion measurement 3U~harm = voltage waveform distortion measurement = annunciating, event generating and value recording functions R = disturbance recorder 000 = digital value indication 000 0 = MMI/MIMIC display I = local and remote control interface = bay-oriented interlocking logic SYMNOT3 Fig.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Application selection tables for REF 541, REF 543 and REF 545 functions . Table 20: Protection functions Function ANSI device no.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Table 21: Measurement functions Function ANSI device IEC symbol no.
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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Table 23: Control functions Function ANSI device IEC symbol no.
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Feeder Terminal REF 541, REF 543, REF 545.
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