ABB REJ 525 Operator's Manual
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ABB REJ 525 Operator's Manual

Combined overcurrent and earth-fault relay
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REJ 525
Combined Overcurrent and
Earth-Fault Relay
Operator's Manual

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Summary of Contents for ABB REJ 525

  • Page 1 REJ 525 Combined Overcurrent and Earth-Fault Relay Operator’s Manual...

  • Page 3: Table Of Contents

    1MRS 752137-MUM Combined Overcurrent and REJ 525 Earth-Fault Relay Issued: 14.09.98 Version: D/05.07.02 Checked: A.S. Operator’s Manual Approved: L.N. We reserve the right to change data without prior notice. Contents 1. Introduction ................5 1.1. About this manual ................5 1.2. The use of the relay ...............5 1.3.
  • Page 4 REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual 3.3.2. Indication messages ............22 3.3.2.1. Alarm indication messages ......... 22 3.3.2.2. Disturbance recorder indication ......23 3.3.2.3. Internal fault ............23 4. Technical description ............. 25 5. Service ..................26 5.1.

  • Page 5: Introduction

    About this manual This manual provides the user with basic information on the combined overcurrent and earth-fault relay REJ 525 and presents detailed instructions on how to use the Human-Machine Interface (HMI) of the relay, also known as the Man-Machine Interface (MMI).

  • Page 6: Guarantee

    (IRF), all protection stages and outputs are blocked. • User-selectable rated frequency 50/60 Hz • User-selectable password protection for the HMI • Display of primary current values • Demand values • Multi-language support 1.4. Guarantee Please inquire the guarantee of your nearest ABB representative.

  • Page 7: Safety Information

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual Safety information Dangerous voltages can occur on the connectors, even though the auxiliary voltage has been disconnected National and local electrical safety regulations must always be followed The device contains components which are sensitive to electrostatic...

  • Page 8: Instructions

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual Instructions 3.1. HMI features 3.1.1. Front panel The front panel of the protection relay includes: • an alphanumeric 2 x 16 characters’ LCD with backlight and contrast control • three indicator LEDs (ready, start, trip) •...

  • Page 9: Display

    Display idle mode When the relay is in the idle mode, the station name will be displayed, which by default is “- ABB -”. To change the station name, use SPA parameter M20. )LJ  'LVSOD\ LQ WKH LGOH PRGH 3.1.2.3.

  • Page 10: How To Adjust The Display Contrast

    3.1.2.4. How to adjust the display contrast The display contrast is dependent on the temperature. The REJ 525 automatically adjusts the contrast for optimum readability. The contrast can also be adjusted manually. To adjust the contrast, the display must be in the idle mode.

  • Page 11: How To Select Language

    E and C contacts and memorized values 3.1.4. How to select language The REJ 525 allows you to choose among several different languages. The default language is English. For selectable languages, see the picture below. )LJ  6HOHFWLRQ RI ODQJXDJH 1.

  • Page 12: Main Menu

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual 3.1.5. Main menu The main menu contains five main groups: • MEASUREMENTS • RECORDED DATA • SETTINGS • CONFIGURATION • INFO )LJ  7KH GLVSOD\ VKRZLQJ WKH ILUVW PDLQ PHQX JURXS ↑...

  • Page 13: Passwords

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual 1. Select “COMMUNICATION” under the main menu group “CONFIGURATION”. 2. Move the cursor to the currently used setting (“REAR CONNECTION/FRONT CONNECTION”) and press the [E] button. The lower line will start to flash.

  • Page 14: Hmi Operation Levels

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual )LJ  3DVVZRUG UHTXHVW IRU HGLWLQJ VHWWLQJ SDUDPHWHUV 3.2. HMI operation levels 3.2.1. Main level The main level of the HMI consists of a user and a technical level. The user level is used for measuring and monitoring whereas the technical level is used for advanced protection relay setting and can be configured to demand a password.

  • Page 15: How To Monitor Recorded Data

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual )LJ  0HDVXUHPHQWV To access measured values by activating the monitoring state: ← 1. Press the [E] and [ ] buttons simultaneously to view the measured line currents on phases L1, L2 and L3 and the measured value of I 2.

  • Page 16: Info

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual )LJ  5HFRUGHG GDWD 3.2.2.4. INFO The main menu group “INFO” contains information about the relay, such as type, software, article and serial numbers. Use this data when you need to order service, for instance.

  • Page 17: How To Change Settings

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual 3.2.3.2. How to change settings The actual settings are found in the first submenu and are not editable. These in turn consist of the settings of either group 1 or 2, depending on which one has been selected to be active.

  • Page 18: Configuration

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual )LJ  6HWWLQJV 3.2.3.3. Configuration In general, the parameters found under “CONFIGURATION” are usually set only once by the customer, i.e. during commissioning of the relay. These parameters are not related to the protection functions.

  • Page 19: How To Acknowledge And Reset Indications, Output Contacts And Memorized Values

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual To alter a parameter, proceed as follows: 1. Select the main menu group “CONFIGURATION” and enter the desired parameter using the arrow buttons. 2. Enter the setting mode by pressing the [E] button. If the default password has been replaced, the text “PASSWORD”...

  • Page 20: Menu Chart

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual 3.2.4. Menu chart )LJ  0HQX VWUXFWXUH...

  • Page 21: Protection Relay Indications

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual 3.3. Protection relay indications The operation of the relay can be monitored by means of two different kinds of indications on the HMI: • LED indications: Start, Trip and Ready •...

  • Page 22: Red Indicator Led

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual • Lit indicator: A protection stage has started. The start indication can be selected to be latching or non-latching with the SGF switches. A non-latching indication will automatically be cleared when the fault has disappeared and the protection stage has been reset whereas a latching indication will remain lit until manually cleared.

  • Page 23: Disturbance Recorder Indication

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual READY START TRIP ALARM I>> L1/L2/L3 )LJ  $ODUP A latching alarm indication message will remain on the display until manually cleared or until replaced by a message of higher priority. However, if the fault is stable and has not disappeared, the LED(s) will not be cleared.
  • Page 24 REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual )LJ  ,QWHUQDO IDXOW The fault codes are listed in the following table. Table 3.3.2.3-1 Fault codes Fault code Type of fault No response on the output contact test, PO1...

  • Page 25: Technical Description

    It can also be used for protection of generators, motors and transformers. The whole function software used in the relay is preloaded into the program memory at the production stage. The operation and the features of the REJ 525 are explained in detail in the Technical Reference Manual.

  • Page 26: Service

    Please contact the manufacturer or the nearest representative for further information about checking, overhaul and recalibration of the relay. When contacting ABB for ordering service, please give a description of the fault and state the possible fault code. 1RWH...

  • Page 27: Binary Input Test

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual The table below shows the activation order and the corresponding digit flashing when a signal is being tested. Table 5.2.1-1 Function test Number Function I> t> I>> t>> >...
  • Page 28 REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual The secondary testing described in this manual is based on the relay’s setting values during normal operation. (If necessary, the secondary testing can be extended by testing the protection stages throughout their setting ranges.) All setting values to be altered during the test procedure have to be read and stored prior to the tests.

  • Page 29: Testing Of The Overcurrent Measuring Transformers

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual REJ525B 415BAA: 2 = 5 A 3 = 1 A REJ525B 412BAA: 2 = 1 A 3 = 0.2 A )LJ  6HFRQGDU\ LQMHFWLRQ WHVW FLUFXLWU\ When the test circuit has been completed and the switchgroups have been set, the auxiliary voltage may be connected to the relay.

  • Page 30: Low-Set Stage I

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual 5.3.2.1. Low-set stage I> Starting Close switch S1 and slowly increase the test current until the relay starts and indicator L3 is lit. Read the start current value from the ammeter.

  • Page 31: Testing Of The Earth-Fault Stages

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual 5.3.4. Testing of the earth-fault stages 5.3.4.1. Low-set stage I > Starting Close switch S1 and slowly increase the test current until the relay starts and indicator L3 is lit. Read the start current value from the ammeter.

  • Page 32: Ordering Information

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual Ordering information Refer to the Technical Reference Manual.

  • Page 33: References

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual References Other available manuals: • Technical Reference Manual 1MRS750941-MUM • Installation Manual 1MRS750526-MUM...

  • Page 34: Index

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual Index Abbreviations ..................... 36 Binary input test ..................27 Commissioning testing................26 Configuration ..................... 18 Connectors....................12 Display backlight ..................9 Display contrast ..................10 Display idle mode ..................9 Display test....................
  • Page 35 Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual Recorded data ..................... 15 Safety information ..................7 Secondary injection testing .................27 Service ......................26 Setting groups ..................... 17 Settings .......................17 Submenu .....................12...

  • Page 36: Abbreviations

    REJ 525 Combined Overcurrent and Earth-Fault Relay 1MRS 752137-MUM Operator’s Manual Abbreviations CBFP Circuit-breaker failure protection Central processing unit IDMT Inverse definite minimum time characteristic Internal relay fault Liquid Crystal Display Light-emitting diode Human-Machine Interface Switchgroup for binary input Switchgroup for functions...

  • Page 37: Customer Feedback

    Combined Overcurrent and Earth-Fault Relay REJ 525 1MRS 752137-MUM Operator’s Manual Customer feedback Date: To fax: +358 10 224 1080 Category: Comment Query Complaint In case of feedback related to a specific product, please state the name of the product.
  • Page 40 ABB Oy Substation Automation P.O. Box 699 FIN-65101 VAASA Finland Tel. +358 10 22 11 Fax. +358 10 224 1094 www.abb.com/substationautomation...

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