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ABB RET 541 Product Manual

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Transformer Terminal
Product Guide
RET 541,
RET 543,
RET 545

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Summary of Contents for ABB RET 541

  • Page 1 Transformer Terminal RET 541, RET 543, Product Guide RET 545...
  • Page 3 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Issued: February 2005 Status: Updated Version: E/26.10.2010 Data subject to change without notice Features • Transformer terminal for protection, control, • Optional automatic on-load tap-changer measurement and supervision of two-wind- control function for single or parallel trans-...
  • Page 4 The RTD1 card, available as an option to the elimination, which prevents unwanted trips at RET 541 and RET 543 terminals, provides earth faults occurring outside the protected versatile analog inputs enabling e.g. tap posi- area.
  • Page 5 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Design The transformer terminals RET 541, RET The control function blocks are documented 543 and RET 545 differ from each other on the CD-ROM “Technical Descriptions of regarding the number of digital inputs and Functions”...
  • Page 6 Both the amplitude and the phase angle are RTD/analog inputs calculated for the virtual channels. The RET 541 and RET 543 transformer ter- minals equipped with an RTD/analog module Note! When sensitive earth-fault protection is (RTD1) have eight general purpose analog needed, core balance transformers are not inputs for DC measurement.

  • Page 7: Analog Outputs

    The alarm channels include time tagging for detected alarms. The time tagging principle Analog outputs The RET 541 and RET 543 transformer ter- used depends on the operation mode. minals equipped with an RTD/analog module have four general purpose 0...20 mA analog Interlocking LED indicator current outputs.

  • Page 8: Self-Supervision

    Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 IEC_103 protocols. RS-485 interface module Self-supervision The transformer terminal RET 54_ is pro- RER 133 is used to connect the transformer vided with an extensive self-supervision sys- terminal to the RS-485 communication bus tem.
  • Page 9 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Transformer ter- The parameters of the transformer terminal External parameterization minal parameter- units can be set either locally over the HMI or The Relay Setting Tool is used for parameter- externally via the serial communication using...

  • Page 10: Terminal Diagrams

    Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Terminal diagrams CD541 Fig. 2 Sample connection diagram of RET 541...
  • Page 11 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 CD543 Fig. 3 Sample connection diagram of RET 543...
  • Page 12 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 CD545_b Fig. 4 Sample connection diagram of RET 545...

  • Page 13: Technical Data

    Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Technical data Table 1: General functions available for the RET 54_ Function Description INDRESET Resetting of operation indicators, latched output signals, registers and waveforms i.e. the disturbance recorder MMIWAKE Activation of HMI backlight...
  • Page 14 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 2: Standard functions available for the RET 54_ Function Description Extensible multiplier Extensible multiplexer NAT2INT Type conversion from natural binary coded input to SINT (Tap changer) Comparison to greater or less...
  • Page 15 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 4: Control functions available for the RET 54_ Function Description CO3DC1 Three-state disconnector 1 with indication CO3DC2 Three-state disconnector 2 with indication COCB1 Circuit breaker 1 control with indication COCB2...
  • Page 16 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 5: On-load tap changer controller function block On load tap changer control function (voltage regulator), COLTC Reference voltage 0.000 ... 2.000 xUn Delay time for the 1st control pulse 1.0 ... 300.0 s Delay time for the 2nd control pulse 1.0 ...
  • Page 17 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Three-phase current measurement, MECU3A and MECU3B 0.0…20000.0 A 0.0…20000.0 A 0.0…20000.0 A 0.0…1000.0% In 0.0…1000.0% In 0.0…1000.0% In IL1 demand 0.0…20000.0 A IL2 demand 0.0…20000.0 A IL3 demand 0.0…20000.0 A IL1 demand 0.0…1000.0% In...
  • Page 18 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Three-phase power and energy measurement, MEPE7 P3 (kW) -999999…999999 kW Q3 (kvar) -999999…999999 kvar Power factor DPF -1.00…1.00 Power factor PF -1.00…1.00 P3 demand (kW) -999999…999999 kW Q3 demand (kvar) -999999…999999 kvar Energy kWh 0…999999999 kWh...
  • Page 19 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 7: Protection function blocks Three-phase non-directional overcurrent protection, low-set stages, NOC3Low, 3I>, NOC3LowB,3I> Start current 0.10…5.00 x In Operate time at DT mode 0.05…300.00 s Time multiplier at IDMT mode 0.05…1.00...
  • Page 20 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Three-phase directional overcurrent function, low-set stage, DOC6Low, I> Operation mode Not in use Definite time Extremely inverse Very inverse Normal inverse Long-time inverse RI-type inverse RD-type inverse Start current 0.05…40.00 x In Operate time 0.05…300.00 s...
  • Page 21 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Note! The values below apply when f/fn = 0.95...1.05 Operation accuracy 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...
  • Page 22 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Non-directional earth-fault protection, low-set stage, NEF1Low, I > Start current 1.0…100.0% of In Operate time at DT mode 0.05…300.00 s Time multiplier at IDMT mode 0.05…1.00 Operation mode Not in use...
  • Page 23 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Directional earth-fault protection, low-set stage, DEF2Low, I > Start current 1.0…25.0% of In Start voltage 2.0…100.0% of Un Operate time at DT mode 0.1…300.0 s Time multiplier at IDMT mode 0.05…1.00...
  • Page 24 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Directional earth-fault protection, high-set stage, DEF2High, I >> and instantaneous stage, DEF2Inst, I >>> Start current 1.0…200.0% of In Start voltage 2.0…100.0% of Un Operate time 0.1…300.0 s Operation mode Not in use...
  • Page 25 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Stabilized restricted earth-fault protection, REF4A, I > and REF4B, I > Basic setting 0.5...50% Operate time 0.04...300.00 s Ratio I2f/I1f> 10...50 % 2nd harmonic blocking Not in use / In use Note! The values below apply when f/fn = 0.95...1.05...
  • Page 26 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Residual overvoltage protection, high-set stage, ROV1High, U >>, and instantaneous stage, ROV1Inst, U >>> Start voltage 2.0…80.0% of Un Operate time 0.05…300.00 s Operation mode Not in use Definite time Measuring mode...
  • Page 27 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Three-phase thermal overload protection for motors, generators and transformers, TOL3Dev, 3 BASIC SETTINGS: Starting current of the motor 0.10...10.00 x In Max. starting time permitted for the motor 0.1...120.0 s Number of starts allowed from cold state 1...3...
  • Page 28 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Negative phase-sequence protection, low-set stage, NPS3Low, I >, and high-set stage, NPS3High, I >> Operation mode Not in use Definite time Inverse time Start value of negative-sequence current I2 0.01...0.50 x In Operate time 0.1..120.0 s...
  • Page 29 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Three-phase overvoltage protection, high-set stage, OV3High, 3U>> Start voltage 0.10…1.60 x Un Operate time 0.05…300.0 s Operation mode Not in use Definite time Measuring mode Phase-to-phase voltages; peak-to-peak measurement Phase-to-phase voltages; fundamental freq. measurement Phase-to-earth voltages;...
  • Page 30 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Three-phase undervoltage protection, high-set stage, UV3High, 3U<< Start voltage 0.10…1.20 x Un Operate time 0.1…300.0 s Operation mode Not in use Definite time Measuring mode Phase-to-phase voltages; peak-to-peak measurement Phase-to-phase voltages; fundamental freq. measurement Phase-to-earth voltages;...
  • Page 31 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Underfrequency or overfrequency protection, 5 stages, Freq1St1… Freq1St5, f</f>, df/dt Operation mode Not in use f</f> 1 timer f</f> 2 timers f</f> OR df/dt> f</f> AND df/dt> f</f> OR df/dt< f</f> AND df/dt<...
  • Page 32 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Three-phase transformer inrush and motor start-up current detector Inrush3, 3I > Ratio I > 5…50% Start current 0.10…5.00 x In Operation mode Not in use Inrush mode Start-up mode Note! The values below apply when f/fn = 0.95...1.05...
  • Page 33 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 10: Digital inputs Power supply version PS1/240 V (High) PS1/240 V (Medium), PS1/48 V (Low), PS2/240 V PS2/48V Input voltage, dc 220 V 110/125/220 V 24/48/60/110/125/ 220 V Nominal treshold voltage, dc...
  • Page 34 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 14: Power outputs Max system voltage 250 V ac/dc Continuous carry Make and carry for 0.5 s 30 A Make and carry for 3 s 15 A Breaking capacity when control circuit time constant 5 A/3 A/1 A L/R <40 ms, at 48/110/220 V dc...
  • Page 35 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 17: Electromagnetic compatibility tests Fast transient disturbance test power supply 4 kV (IEC 60255-22-4 and I/O ports 2 kV IEC 61000-4-4) Surge immunity test power supply 4 kV, common mode...
  • Page 36 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 18: Data communication Modbus RTU/ASCII bit rates 300, 600, 1200, 2400, 4800, 9600, 19200 bps data bits 5, 6, 7, 8 stop bits 1, 2 parity none, odd, even Table 19: General...
  • Page 37 English-Portuguese English-Polish English-Russian English-Spanish English-Czech Number of digital inputs/outputs The RET 541, RET 543 and RET 545 trans- the number of digital inputs and outputs as former terminals differ from each other as to follows: Number of inputs/outputs RET 541...
  • Page 38 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Self-supervision outputs Functionality levels The functionality level determines the extent ed information on the separate function of the selection of function blocks available blocks included in each selection, please con- for the transformer terminal. For more detail- sult your relay supplier.
  • Page 39 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 20: Transformer terminal functionality levels...
  • Page 40 1MRS755543 Transformer Terminals functionality levels, cont. RET54_ Functionality2.xls Hardware versions of RET 541, RET 543 and RET 545 For the number of digital inputs and outputs of RET 54_. Moreover, RET 541 and RET of RET 54_ transformer terminals, refer to 543 can be supplied with an RTD/analog section “Order number”...
  • Page 41 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 21: Hardware versions of RET 541, 6I/3U transformers HW modules Order number Analog interface Current rafo 1/5 A Voltage trafo 100 V Main processor boards CPU module Power supply boards PS1: 80...265 VDC/AC (High)
  • Page 42 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 22: Hardware versions of RET 541, 7I/2U transformers HW modules Order number Analog interface Current trafo 1/5 A Voltage trafo 100 V Main processor boards CPU module Power supply boards PS1: 80...265 VDC/AC (High)
  • Page 43 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 23: Hardware versions of RET 541, 8I/1U transformers HW modules Order number Analog interface Current rafo 1/5 A Voltage trafo 100 V Main processor boards CPU module Power supply boards PS1: 80...265 VDC/AC (High)
  • Page 44 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 24: Hardware versions of RET 543, 6I/3U transformers HW modules Order number Analog interface Current trafo 1/5 A Voltage trafo 100 V Main processor boards CPU module Power supply boards PS1: 80...265 VDC/AC (High)
  • Page 45 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 25: Hardware versions of RET 543, 7I/2U transformers HW modules Order number Analog interface Current trafo 1/5 A Voltage trafo 100 V Main processor boards CPU module Power supply boards PS1: 80...265 VDC/AC (High)
  • Page 46 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 26: Hardware versions of RET 543, 8I/1U transformers HW modules Order number Analog interface Current trafo 1/5 A Voltage trafo 100 V Main processor boards CPU module Power supply boards PS1: 80...265 VDC/AC (High)
  • Page 47 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 27: Hardware versions of RET 545, 6I/3U transformers HW modules Order number Analog interface Current trafo 1/5 A Voltage trafo 100 V Main processor boards CPU module Power supply boards PS1: 80...265 VDC/AC (High)
  • Page 48 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 28: Hardware versions of RET 545, 7I/2U transformers HW modules Order number Analog interface Current trafo 1/5 A Voltage trafo 100 V Main processor boards CPU module Power supply boards PS1: 80...265 VDC/AC (High)
  • Page 49 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 29: Hardware versions of RET 545, 8I/1U transformers HW modules Order number Analog interface Current trafo 1/5 A Voltage trafo 100 V Main processor boards CPU module Power supply boards PS1: 80...265 VDC/AC (High)

  • Page 50: Software Configuration

    Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Software configu- Each RET 54_ transformer terminal allows within the scope of the I/O connections and ration various software configurations based on sep- considering the total CPU load of the func- arate functions.

  • Page 51: Application Examples

    Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Application examples Fig. 6 Protection, control and supervision functions of a Yd-connected power transformer, implemented with RET 543 transformer terminal, REF543 feeder terminal and REA 101 arc protection. Position indication of the on-load tap changer is used to increase the sensitivity of the differential function of the transformer.
  • Page 52 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Fig. 7 Protection, control, measurement and supervision functions of an Dyn-connected power trans- former, implemented with RET 543 transformer terminal and an REF 543 feeder terminal. The neutral point of the low-voltage network is earthed via a high impedance. REF 610 is used as a backup relay on the high-voltage side.
  • Page 53 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 3I> 3U> 3I > 3U< I > RET/3I CBFP 62BF REF/3I REF 54_ 3I> 3ΔI> ΔI > 87TN 3I> RET/1I 87TN I > ΔI > REF/1I I > Θ P> Θ...
  • Page 54 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 3I> 3U> 3I > 3U< RET/3I I > REF/3I CBFP 62BF REF 54_ 3ΔI > 87T 3I> RET/1I Θ 87TN 3I> ΔI > REF/1I P> Θ ΔI > 87TN I >...
  • Page 55 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Fig. 10 Protection, control, measurement and supervision functions of an Yyn-connected industrial power transformer, implemented with RET 543 transformer terminals, an REF 543 feeder terminal, an REX 521 protection relay and REA 101 arc protection. The neutral point of the low-voltage network...
  • Page 56 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Fig. 11 Transformer in block connection with a generator. The transformer terminal RET 543 is used for overall differential protection. An earthing resistor is recommended for the generator. The REX 521 protection relay is used for abnormal voltage and frequency supervision and protection of the net- work and the machine.
  • Page 57 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Fig. 12 Transformer in block connection with a generator. The transformer terminal RET 543 is used for overall differential protection. An earthing resistor is recommended for the generator. Generator protection functions are divided for two REM 543 machine terminals (A and B). The current injec-...
  • Page 58 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Fig. 13 Symbol notations, part I...
  • Page 59 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Fig. 14 Symbol notations, part II...
  • Page 60 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Fig. 15 Symbol notations, part III...
  • Page 61 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Application selection tables for RET 541, RET 543 and RET 545 functions Table 30: Protection functions Types of fault IEEE Device No. IEC Symbol Protection function Function block code Differential 3I>, 3I>>...
  • Page 62 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 30: Protection functions Types of fault IEEE Device No. IEC Symbol Protection function Function block code Io> Earth-fault 87TN Stabilized restricted REF4A earth-fault protection Io> 87TN Stabilized restricted REF4B earth-fault protection...
  • Page 63 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 31: Measurement functions Types of measurement IEC Symbol Measurement function Function block code General measurement/ mA/V/C/ General measurement/ MEAI1...8 analog input or analog analog input on output RTD/analog module Analog output on MEAO1...4...
  • Page 64 Transformer Terminal RET 541, RET 543, RET 545 1MRS755543 Table 32: Control functions Types of control Symbol Control function Function block code Other control functions Object indication 1...8 COIND1...COIND8 (2 state inputs) On/off switch 1...4 COSW1...COSW4 (1 output) Logic control position...

  • Page 65: Additional Information

    References Additional information Transformer Terminal RET 54_ Technical Reference 1MRS755225 Manual, General Technical Descriptions of Functions 1MRS750889-MCD (CD-ROM only) Installation Manual 1MR 750526-MUM Operator’s Manual 1MR 750500-MUM Technical Reference Manual RER 103 1MRS750532-MUM Technical Reference Manual RER 123 1MRS751143-MUM Protection & Control Terminals REF 54_, REM 54_, 1MRS750745-MUM RET 54_ and REC 523 Configuration Guideline Bus Connection Module RER 133 Technical...
  • Page 68 ABB Oy Distribution Automation P.O. Box 699 FI-65101 Vaasa, FINLAND Tel +358 10 22 11 Fax +358 10 224 1094 www.abb.com/substationautomation...

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Ret 543Ret 545

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