ABB REJ 523 Technical Reference Manual
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ABB REJ 523 Technical Reference Manual

Overcurrent relay
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1MRS750940-MUM
Issued:
14.09.98
Version:
A/14.09.99
Checked: H.S.
Approved: L.N.
__________________________________________________________________________________________________
ABB Substation Automation Products and Systems
Data subject to change without notice
Overcurrent Relay
Technical Reference Manual
REJ 523

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Summary of Contents for ABB REJ 523

  • Page 1 1MRS750940-MUM REJ 523 Issued: 14.09.98 Overcurrent Relay Version: A/14.09.99 Checked: H.S. Technical Reference Manual Approved: L.N. Data subject to change without notice __________________________________________________________________________________________________ ABB Substation Automation Products and Systems...

  • Page 2: Table Of Contents

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Contents 1 Introduction ....................4 About this manual ................4 The use of the relay ................4 Features.....................4 Guarantee..................5 2 Safety information ..................6 3 Instructions ....................7 Application ..................7 Requirements ..................7 Configuration ..................8 4 Technical description ..................9...
  • Page 3 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 4.1.7.2 Recorder data ............... 32 4.1.7.3 Control and indication of recorder status ....... 32 4.1.7.4 Triggering ..............33 4.1.7.5 Settings and unloading..........33 4.1.7.6 Event code ..............34 4.1.8 Recorded data................

  • Page 4: Introduction

    About this manual This manual is intended to provide the user with thorough information on the relay REJ 523 and its applications. The focus in the manual is on technical description of the relay. Instructions for using the MMI are found in a separate “Operator’s Manual” and for installation in “Installation Manual”.

  • Page 5: Guarantee

    • Continuous self-supervision of hardware and software. At a permanent fault all stages and outputs are blocked. • Rated frequency user-selectable 50/60 Hz. • User-selectable password protection for MMI. • Display of primary current values. Guarantee Please inquire the guarantee of your nearest ABB representative. 1MRS750940-MUM...

  • Page 6: Safety Information

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Safety information Dangerous voltages can occur on the connectors, even though the auxiliary voltage is disconnected. National and local electrical safety regulations must always be followed. The frame of the protection relay has to be carefully earthed.

  • Page 7: Instructions

    Instructions Application The overcurrent relay REJ 523 is a secondary relay that is connected to the current transformers of an object to be protected. The three-phase overcurrent unit continuously measures the phase currents of the object. On detection of a fault the relay starts, trips the circuit breaker, provides alarms, records fault data etc., in...

  • Page 8: Configuration

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Configuration Setting and connection examples The appropriate configuration of the output contact matrix enables using the start signals of the overcurrent unit as contact functions. The start signals can be used for blocking co-operating protection relays, for signalling and for initiating autoreclosing.

  • Page 9: Technical Description

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Technical description Functional description 4.1.1 Product functions 4.1.1.1 Schema of product functions THREE PHASE DEFINITE TIME OR INVERSE TIME LOW-SET OVERCURRENT PROTECTION THREE PHASE INSTANTANEOUS OR DEFINITE TIME HIGH-SET...

  • Page 10: Overcurrent

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems 4.1.1.2 Overcurrent Refer to section 4.1.3.1 Overcurrent unit. 4.1.1.3 Inputs The relay includes three energizing inputs for phase currents and one external binary input controlled by an external voltage. The function of the binary input is determined with selector switches of the protection relay.

  • Page 11: Mmi Module

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 4.1.1.7 MMI module The MMI of the relay is equipped with six push-buttons and an alphanumeric LCD for 2 x 16 characters. The push-buttons are used for navigating in the menu structure and for adjusting set values.

  • Page 12: Configuration

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems 4.1.2 Configuration The figure below illustrates how the start, trip and binary input signals can be configured so that the required protection functions are obtained. X2.1 17 18 13 14 15...

  • Page 13: Protection

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 4.1.3 Protection Block diagram 40/80 ms SGR1/x 55 ms IL 1 I> t> , k IL 2 40/80 ms SGR2/x IL 3 SGB1/5 SGF3/1...6 SGF1/3 SGF1/2 I>> SGR3/x 30 ms...

  • Page 14: Time/Current Characteristics

    Six time/current curve groups are available. Four of these comply with the standards BS 142 and IEC 60255 and two curve groups, RI and RD, are special type curve groups according to ABB praxis. Characteristics according to IEC 60255 and BS 142 The relay module incorporates four internationally standardized time/current curve groups called "extremely inverse", "very inverse", "normal inverse"...
  • Page 15 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems β × t[s] = α     −   > where t = operate time k = time multiplier I = phase current value I> = set current value.
  • Page 16 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems RI-type characteristic The RI-type characteristic is a special characteristic that is principally used for obtaining time grading with mechanical relays. The characteristic can be expressed mathematically: t [s] = >...
  • Page 17 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 0.05 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 7 8 9 10 20 I/I> Figure 4.1.3.2-1 Normal inverse time characteristics 1MRS750940-MUM...
  • Page 18 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems 0.09 0.08 0.07 0.06 0.05 0.05 0.04 0.03 0.02 6 7 8 9 10 20 I/I> Figure 4.1.3.2-2 Very inverse time characteristics MRS750940-MUM...
  • Page 19 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 0.09 0.08 0.07 0.06 0.05 0.04 0.05 0.03 0.02 6 7 8 9 10 20 I/I> Figure 4.1.3.2-3 Extremely inverse time characteristics 1MRS750940-MUM...
  • Page 20 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems 0.05 I/I> 7 8 9 Figure 4.1.3.2-4 Long-time inverse characteristics MRS750940-MUM...
  • Page 21 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 0.05 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 6 7 8 9 10 20 I/I> Figure 4.1.3.2-5 RI-type inverse-time characteristics 1MRS750940-MUM...
  • Page 22 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems 0.09 0.08 0.07 0.06 0.05 0.04 0.4 0.5 0.05 0.03 0.02 I/I> 7 8 9 10 Figure 4.1.3.2-6 RD-type inverse-time characteristics MRS750940-MUM...

  • Page 23: Settings

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 4.1.3.3 Settings Two alternative setting groups, 1 and 2, are available for the relay. Either of these setting groups can be used as the actual settings, one group at a time. Both the groups have their related registers.
  • Page 24 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems The stage can be set out of operation with SGF switches. This state is indicated by “---” on the LCD and by the reading “999” when parameters are read via the SPA bus.
  • Page 25 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems SGF1...SGF3 Switchgroups SGF1...SGF3 are used for configuring the desired function as follows: Table 4.1.3.3-2 SGF1 Switch Function Default setting SGF1/1 Selection of the latching feature for output PO1. SGF1/2 Selection of the latching feature for output PO2.
  • Page 26 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Table 4.1.3.3-3 SGF2 Switch Function Default setting SGF2/1 Automatic doubling of the start current of stage I>>. When the switch is in position 1, the set value for the stage is automatically doubled at start-up.
  • Page 27 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Table 4.1.3.3-4 SGF3 SGF3/1 SGF3/2 SGF3/3 SGF3/4 SGF3/5 SGF3/6 SGF3/7 SGF3/8 Operation Definite-time Extremely inverse Very inverse Normal inverse Long-time inverse RI-type characteristic RD-type characteristic Default setting Note! Only one type of characteristic can be selected at a time! If more than one switch is set active, the characteristic with the lowest weighting factor of the selected switches will be activated.
  • Page 28 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems SGB1 Table 4.1.3.3-5 SGB1 Resetting / blocking with BI Switch Function Default setting SGB1/1 SGB1/1 = 0: indicators are not reset by the binary input signal. SGB1/1 = 1: indicators are reset by the binary input signal.
  • Page 29 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems SGR1...SGR4 The start and operate signals of the protection stages are connected to the output contacts with switches SGR1...SGR4. The matrix below can be used for help in making the desired selections. The start and operate signals of the different protection stages are combined with the output contacts by encircling the desired intersection point.

  • Page 30: Technical Data Of Protection Functions

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems 4.1.3.4 Technical data of protection functions Table 4.1.3.4-1 Stages I> and I>> Feature Stage I> Stage I>> Start current • at definite-time characteristic and ∞ 0.30...5.00 x I 0.30...35.0 x I •...

  • Page 31: Monitoring

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 4.1.4 Monitoring The function of the relay can be monitored with the help of three indicators on the relay front panel: a green READY LED, a yellow START LED and a red TRIP LED.

  • Page 32: I/O Test

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems 4.1.6 I/O test The state of the binary input can be monitored and the five logical outputs can be activated and tested one by one. The test mode is entered via “Function test/BI” in MMI menu.

  • Page 33: Triggering

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Writing the value 0 to the parameter clears the recorder memory, restarts storing of new data into the memory and enables triggering of the recorder. Writing the value 2 to the parameter restarts the unloading process in the recorder by setting the time stamp and first data ready to be read.

  • Page 34: Event Code

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Used for designating the disturbance recorder the name of the station where the relay is located. The maximum length of a name is 15 characters. M80…82 Used for designating analogue channels the conversion factor and unit.

  • Page 35: Recorded Data

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 4.1.8 Recorded data On detection of a fault the recorder starts and records fault data. The latest five events are saved. The submenu “Number of starts” under “Recorded data” indicates how many times a protection function has started, range: 0...255.
  • Page 36 The front connector is standardized for ABB relay products and requires a specific opto-cable (ABB art. no 1MKC950001-1). The cable is connected to the serial RS-232C port of the PC. The optical stage of the cable is powered by RS-232C control signals.

  • Page 37: Event Codes

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 4.1.9.2 Event codes Special codes have been determined to represent certain events, such as start and operation of protection stages and different states of output signals. The event codes can be transferred to higher system levels via the rear connector.
  • Page 38 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Table 4.1.9.2-3 Event codes E9…E16 Code Event Weighting factor Default value PO1 activated PO1 reset PO2 activated PO2 reset SO1 activated SO1 reset SO2 activated SO2 reset Default value of event mask V156 Table 4.9.1.2-4 Event code E31...

  • Page 39: Remote Transfer Data

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 4.1.9.3 Remote transfer data In some cases, altering parameter values via serial communication requires the use of the SPA password. The password is a number within the range 1...999. The default value for the SPA password is 1.
  • Page 40 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Settings Table 4.1.9.3-1 Settings Variable Actual Group 1 Group 2 Setting settings (R, W, P) (R, W, P) range Start current of stage I> 0.30...5.00 x I Operate time or time 0.05 ...300 s /...
  • Page 41 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Table 4.1.9.3-2 Parameters V1…V4 Recorded data Para- Value meter Number of starts of 0...255 stage I> Number of starts of 0...255 stage I>> Stage/phase that caused > operation >...
  • Page 42 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Disturbance recorder Table 4.1.9.3-4 M parameters for disturbance recorder Description Parameter Value/Note Analogue channels in use 7 (=00000111B) Digital channels in use 31 (=00011111B) Sampling rate 800 or 960 Hz Station identification/ 0…9999...
  • Page 43 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Table 4.1.9.3-5 V parameters for disturbance recorder Description Parameter Value Internal trigger signals’ V241 0...15, checksum see table 4.1.9.3-6 Internal trigger signal’s V242 0...15, edge 0=rising, 1=falling External trigger signal...
  • Page 44 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Table 4.1.9.3-6 Disturbance recorder internal triggering Event Weighting Default value Default value factor of triggering of triggering mask, V241 edge, V242 Starting of stage I> Tripping of stage I>...
  • Page 45 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Control parameters Table 4.1.9.3-8 Control parameters Description Para- Value meter Resetting of output V101 1=reset contacts with the latching feature Resetting of registers and V102 1=reset output contacts with the...
  • Page 46 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Description Para- Value meter Internal fault code V169 0...255 SPA address of the relay V200 R, W 1...254 Data transfer rate, kbps V201 R, W 4.8 or 9.6 Rear communication...
  • Page 47 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Input and output signals The measured currents and the status of the binary input signal can be read (R) with parameters I1...I4. When the value of parameter I4 is 1, the binary input is energized.

  • Page 48: Relay Parameterization

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems 4.1.10 Relay parameterization Local parameterization The parameters of the relay can be set either locally via the MMI or externally via serial communication with the Relay Setting Tool. When the parameters are set locally the setting parameters can be chosen from the hierarchical menu structure.
  • Page 49 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Output contacts PO1 and PO2 are heavy-duty trip contacts, capable of controlling most circuit breakers. The operate signals of different protection stages are routed to the contacts with switches 1 and 2 of switchgroups SGR1...SGR4. On delivery from factory the trip signals of all the protection stages are routed to both the PO1 and PO2 contacts.
  • Page 50 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Table 4.2.1-1 Inputs for phase current Terminal Function X1.1-1 IL1 Common X1.1-2 IL1 5 A X1.1-3 IL1 1 A X1.1-4 IL2 Common X1.1-5 IL2 5 A X1.1-6 IL2 1 A X1.1-7...

  • Page 51: Serial Communication Connections

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Table 4.2.1-4 Internal Relay Fault contact (IRF) Terminal Function X2.1-13 Internal relay fault, common X2.1-14 Closed; IRF, or U disconnected X2.1-15 Closed; no IRF, and U connected Table 4.2.1-5 Binary input BI...

  • Page 52: Technical Data

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems 4.2.3 Technical data Table 4.2.3-1 Dimensions • Width 111.4 mm • Height, frame 265.9 mm (6U), box 255.8 mm • Depth 235 mm (245.1 mm with a protective rear cover, available as an option) •...
  • Page 53 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Table 4.2.3-5 Binary input • Operating range 18…265 V dc • Rated voltage 24/48/60/110/220 V dc • Current drain ~ 2…25 mA • Power consumption < 0.8 W Table 4.2.3-6 Signal outputs (SO1, SO2) and self-supervision output (IRF) •...
  • Page 54 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Table 4.2.3-10 Electromagnetic tests EMC immunity test level requirements consider the demands in the generic standard EN 50082-2 1 MHz burst disturbance test, class III According to IEC 60255-22-1 •...
  • Page 55 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Table 4.2.3-11 Standard tests Insulation tests Dielectric tests According to IEC 60255-5 • Test voltage 2 kV, 50 Hz, 1 min Impulse voltage test According to IEC 60255-5 • Test voltage 5 kV, unipolar impulses, waveform 1.2/50 µs,...
  • Page 56 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Auxiliary voltage For its operation the relay requires a secured auxiliary voltage supply. The internal power supply of the relay forms the voltages required by the relay electronics. The power supply is a galvanically isolated (flyback-type) DC/DC converter.

  • Page 57: Ordering Information

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Ordering information Order number REJ523A 414-BAA (1MRS090414-BAA) Protective cover for rear connectors 1MRS060132 Flush mounting kit 1MRS050209 Semi-flush mounting kit 1MRS050253 Wall mounting kit 1MRS050240 Side-by-side mounting kit 1MRS050241 19”...

  • Page 58: References

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems References Other available manuals: • Operator’s Manual, 1MRS750144-MUM • Installation Manual 1MRS750526-MUM MRS750940-MUM...

  • Page 59: Index/Glossary

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Index/Glossary Auxiliary voltage, 56 CBFP, see Circuit-breaker failure protection, 10 Checksum calculation, 24 Control parameters, 45 Error codes, see Fault codes, 11 External parameterization, 48 Fault codes, 11, 31...

  • Page 60: Check Lists

    REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Check lists Setting group 1 Variable Group 1 Setting Default Customer’s (R, W, P) range setting setting Start current of stage I> 0.30...5.00 x I 0.30 x I Operate time or time 0.05...300 s...
  • Page 61 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Setting group 2 Variable Group 2 Setting Default Customer’s (R, W, P) range setting setting Start current of stage I> 0.30...5.00 x I 0.30 x I Operate time or time 0.05...300 s...
  • Page 62 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems Parameters for disturbance recorder Information Parameter Setting range Default Customer’s setting setting Event mask for disturbance V157 0 / 1 recorder Internal trigger signals’ V241 0...15 checksum Internal trigger signal’s edge V242 0...15...

  • Page 63: Customer Feedback

    Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems Customer feedback Date: _____________________ To fax: +358 10 224 1094 Category: _ Comment _ Query _ Complaint In case of feedback related to a specific product, please state the name of the product.
  • Page 64 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems MRS750940-MUM...
  • Page 65 Technical Reference Manual REJ 523 ABB Substation Automation Products and Systems 1MRS750940-MUM...
  • Page 66 REJ 523 Technical Reference Manual ABB Substation Automation Products and Systems MRS750940-MUM...
  • Page 68 ABB Substation Automation Oy P.O. Box 699 FIN-65101 VAASA Finland Tel. +358 10 224 000 Fax. +358 10 224 1094 www.abb.fi...

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