ABB REJ 521 Operator's Manual
  1. Manuals
  2. Brands
  3. ABB Manuals
  4. Relays
  5. REJ 521
  6. Operator's manual
ABB REJ 521 Operator's Manual

ABB REJ 521 Operator's Manual

Earth-fault relay
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
REJ 521
Earth-Fault Relay
Operator's Manual

Advertisement

Table of Contents
loading

Related Manuals for ABB REJ 521

Summary of Contents for ABB REJ 521

  • Page 1 REJ 521 Earth-Fault Relay Operator’s Manual...

  • Page 3: Table Of Contents

    1MRS 752179-MUM Earth-Fault Relay REJ 521 Issued: 14.09.98 Operator’s Manual Version: C/15.08.02 Checked: A.S. 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 521 Earth-Fault Relay 1MRS 752179-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. General ..................26 5.2.

  • Page 5: Introduction

    The REJ 521 is based on a microprocessor environment. A self-supervision system continuously monitors the operation of the electronics and the software. The HMI includes a Liquid Crystal Display (LCD) which makes the local use of the relay safe and easy.

  • 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 • Multi-language support 1.4. Guarantee Please inquire the guarantee of your nearest ABB representative.

  • Page 7: Safety Information

    Earth-Fault Relay REJ 521 1MRS 752179-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 521 Earth-Fault Relay 1MRS 752179-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

    )LJ  'LVSOD\ WHVW DW SRZHU XS 3.1.2.2. 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. READY START TRIP )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 521 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 521 allows you to choose among several different languages. The default language is English. For selectable languages, see the picture below. Parameter Menu Main Menu Group Menu...

  • Page 12: Main Menu

    REJ 521 Earth-Fault Relay 1MRS 752179-MUM Operator’s Manual 3.1.5. Main menu The main menu contains five main groups: • MEASUREMENTS • RECORDED DATA • SETTINGS • CONFIGURATION • INFO READY START TRIP MEASUREMENTS )LJ  7KH GLVSOD\ VKRZLQJ WKH ILUVW PDLQ PHQX JURXS ↑...

  • Page 13: Passwords

    Earth-Fault Relay REJ 521 1MRS 752179-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 521 Earth-Fault Relay 1MRS 752179-MUM Operator’s Manual READY START TRIP SETTINGS PASSWORD )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

    Earth-Fault Relay REJ 521 1MRS 752179-MUM Operator’s Manual Parameter Menu Main Menu Group Menu MEASUREMENTS MEASUREMENTS MEASUREMENTS In:x.xx A:x.xx Cancel RECORDED DATA SETTINGS CONFIGURATION INFO )LJ  0HDVXUHPHQWV To access measured values by activating the monitoring state: ← 1. Press the [E] and [ ] buttons simultaneously to view the measured value of I 2.

  • Page 16: Info

    REJ 521 Earth-Fault Relay 1MRS 752179-MUM Operator’s Manual Parameter Menu Main Menu Group Menu MEASUREMENTS RECORDED DATA RECORDED DATA RECORDED DATA 1. EVENT 1. I0 In:x.xx 2. EVENT 1. t0> %:xxx Cancel 3. EVENT 1. t0>> %:xxx SETTINGS 1. xx-xx-xx 4.

  • Page 17: How To Change Settings

    Earth-Fault Relay REJ 521 1MRS 752179-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 521 Earth-Fault Relay 1MRS 752179-MUM Operator’s Manual Parameter Menus Main Menu Group Menu MEASUREMENTS RECORDED DATA Edit/Confirm SETTINGS SETTINGS SETTINGS SETTINGS PROTECT. STAGES I0> In:x.xx * GRP 1 I>:x.xx Cancel t0> :x.xx GRP 2 I>:x.xx I0>> In:x.xx CONFIGURATION t0>>...

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

    Earth-Fault Relay REJ 521 1MRS 752179-MUM Operator’s Manual password. If the default password “999” is still valid, no password will be required. 3. The text or the first digit of the setting value of the parameter to be edited will ↑...

  • Page 20: Menu Chart

    REJ 521 Earth-Fault Relay 1MRS 752179-MUM Operator’s Manual 3.2.4. Menu chart - “Station name” - Note: ABB is the default MEASUREMENTS MEASUREMENTS MEASUREMENTS A:x.xx In:x.xx RECORDED DATA RECORDED DATA RECORDED DATA 1. EVENT 1. I0 In:x.xx 2. EVENT 1. t0>...

  • Page 21: Protection Relay Indications

    Earth-Fault Relay REJ 521 1MRS 752179-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 • A text message on the LCD The basic protection functions are not affected by fault indications.

  • Page 22: Red Indicator Led

    REJ 521 Earth-Fault Relay 1MRS 752179-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

    Earth-Fault Relay REJ 521 1MRS 752179-MUM Operator’s Manual READY START TRIP ALARM I0>> )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 521 Earth-Fault Relay 1MRS 752179-MUM Operator’s Manual READY START TRIP INTERNAL FAULT FAULT CODE :56 )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 521 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

    Earth-Fault Relay REJ 521 1MRS 752179-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 > > >> >> 5.2.2. Binary input test To monitor the status of the binary input, navigate in the HMI menu as follows: 1.
  • Page 28 REJ 521 Earth-Fault Relay 1MRS 752179-MUM Operator’s Manual To enable secondary testing, the relay has to be disconnected, either by disconnecting the terminal blocks or by fitting a test plug on the relay. Danger! Do not open the secondary circuit of a current transformer during any phase of the testing when the primary circuit is live.

  • Page 29: Testing Of The Earth-Fault Measuring Transformer

    Earth-Fault Relay REJ 521 1MRS 752179-MUM Operator’s Manual 5.3.1. Testing of the earth-fault measuring transformer Select the same rated current as in the application. Before the test is started: • Record the currently used SGR settings for later restoring. • Set the relay switchgroups as follows: Table 5.3.1-1...

  • Page 30: Testing Of The Self-Supervision System (Irf)

    REJ 521 Earth-Fault Relay 1MRS 752179-MUM Operator’s Manual Operate time Set the test current to 2 x the setting value of stage I >>. Switch off S1, clear the indicators and unlatch the output contacts. The clock is started by closing switch S1 and stopped by closing output contact PO2.

  • Page 31: Ordering Information

    Earth-Fault Relay REJ 521 1MRS 752179-MUM Operator’s Manual Ordering information Refer to the Technical Reference Manual.

  • Page 32: References

    REJ 521 Earth-Fault Relay 1MRS 752179-MUM Operator’s Manual References Other available manuals: • Technical Reference Manual 1MRS750939-MUM • Installation Manual 1MRS750526-MUM...

  • Page 33: Index

    Earth-Fault Relay REJ 521 1MRS 752179-MUM Operator’s Manual Index Abbreviations ..................... 35 Binary input test ..................27 Commissioning testing ................26 Configuration ....................18 Connectors ....................12 Display backlight..................9 Display contrast ..................10 Display idle mode..................9 Display test ....................9 Fault code ....................
  • Page 34 REJ 521 Earth-Fault Relay 1MRS 752179-MUM Operator’s Manual Recorded data..................... 15 Safety information ..................7 Secondary injection testing ................ 27 Service......................26 Setting groups ..................... 17 Settings ....................... 17 Submenu ..................... 12...

  • Page 35: Abbreviations

    Earth-Fault Relay REJ 521 1MRS 752179-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 Switchgroups for binary input Switchgroups for functions Switchgroups for output contacts...

  • Page 36: Customer Feedback

    REJ 521 Earth-Fault Relay 1MRS 752179-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. Product: Description: Initiator:...
  • 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...

Table of Contents