ABB REX 521 Manuale utente
Protection Relay
REX 521
Operator’s Manual
3
REX 521
Issued: 29.11.2001
Version: E/04.06.2004
We reserve the right to change data without prior notice.
Protection Relay
Operator’s Manual
Contents
1. About this manual .....................................................................5
1.1. Copyrights .....................................................................................5
1.2. Trademarks ...................................................................................5
1.3. General .........................................................................................5
1.4. Abbrevitations ...............................................................................6
1.5. Related documents .......................................................................6
1.6. Document revisions .......................................................................7
2. Safety information .....................................................................7
3. Introduction ...............................................................................8
3.1. REX 521 protection relay ..............................................................8
4. Instructions ................................................................................9
4.1. HMI features ..................................................................................9
4.1.1. Push-button functions ......................................................11
4.1.2. Selecting language ..........................................................12
4.1.3. Passwords .......................................................................13
4.1.4. Display backlight ..............................................................13
4.1.5. Display contrast ...............................................................13
4.1.6. Display test ......................................................................14
4.1.7. Selecting primary values ..................................................14
4.1.8. Optically isolated serial communication port ....................14
4.2. Menu chart ..................................................................................15
4.2.1. Measurement menu .........................................................16
4.2.2. Event menu ......................................................................17
4.2.3. Manual control .................................................................18
4.2.3.1. Local/Remote position selection ........................18
4.2.3.2. Controlling breaker .............................................19
4.2.4. Setting parameters ...........................................................21
4.2.5. Setting bit masks ..............................................................21
4.3. Indication messages ...................................................................22
4.3.1. Protection indications .......................................................22
4.3.2. Self-supervision ...............................................................23
4.3.3. Condition monitoring indication ........................................24
4.4. LED indicators .............................................................................25
4.4.1. Green indication LED (READY) .......................................25
4.4.2. Yellow indication LED (START) .......................................25
4.4.3. Red indication LED (TRIP) ...............................................25
4.5. Alarm LEDs .................................................................................26
4.5.1. Alarm LED 1-8 .................................................................26
1MRS 751107-MUM
4
1MRS 751107-MUM
Protection Relay
Operator’s Manual
REX 521
5. Test mode ............................................................................... 27
5.1. I/O test ........................................................................................27
5.2. IRF test .......................................................................................27
5.3. Function block test ......................................................................28
6. Index ........................................................................................ 29
1MRS 751107-MUM Protection Relay
Operator’s Manual
REX 521
5
1. About this manual
1.1. Copyrights
The information in this document is subject to change without notice and should not
be construed as a commitment by ABB Oy. ABB Oy assumes no responsibility for
any errors that may appear in this document.
In no event shall ABB Oy be liable for direct, indirect, special, incidental or
consequential damages of any nature or kind arising from the use of this document,
nor shall ABB Oy be liable for incidental or consequential damages arising from
use of any software or hardware described in this document.
This document and parts thereof must not be reproduced or copied without written
permission from ABB Oy, and the contents thereof must not be imparted to a third
party nor used for any unauthorized purpose.
The software or hardware described in this document is furnished under a license
and may be used, copied, or disclosed only in accordance with the terms of such
license.
Copyright © 2004 ABB Oy
All rights reserved.
1.2. Trademarks
Brand and product names mentioned in this document are trademarks or registered
trademarks of their respective companies.
1.3. General
The purpose of this manual is to provide the user with basic information on the
protection relay REX 521 Revision E, and to especially focus on explaining the use
of the human-machine interface (HMI).
For information about the new features of the relay, refer to REX 521 Technical
Reference Manual, General (see “Related documents” on page 6).
6
1MRS 751107-MUM
Protection Relay
Operator’s Manual
REX 521
1.4. Abbrevitations
1.5. Related documents
Manuals for the REX 521
Parameter and event lists for the REX 521
Tool-specific manuals
CBFP Circuit-breaker failure protection
CT Current transformer
HMI Human-machine interface
HSPO High-speed power output
IRF Internal relay fault
LCD Liquid chrystal display
PO Power output
RS Rogowski sensor
SO Signalling output
VD Voltage divider
VT Voltage transformer
• Technical Reference Manual, Standard Configurations 1MRS 751802-MUM
• Technical Reference Manual, General 1MRS 751108-MUM
• Installation Manual 1MRS 750526-MUM
• Technical Descriptions of Functions (CD-ROM) 1MRS 750889-MCD
• Modbus Remote Communication Protocol for REX 521,
Technical Description 1MRS 755017
• DNP 3.0 Remote Communication Protocol for REF 54_
and REX 521, Technical Description 1MRS 755260
• Parameter List for REX 521 1MRS 751999-RTI
• Event List for REX 521 1MRS 752000-RTI
• General Parameters for REX 521 1MRS 752156-RTI
• Interoperability List for REX 521 1MRS 752157-RTI
• CAP505 Installation and Commissioning Manual 1MRS 751273-MEN
• CAP505 Operator’s Manual 1MRS 751709-MEN
• CAP505 Protocol Mapping Tool, Operator’s Manual 1MRS 755277
• Tools for Relays and Terminals, User’s Guide 1MRS 752008-MUM
• CAP 501 Installation and Commissioning Manual 1MRS 751270-MEN
• CAP 501 Operator’s Manual 1MRS 751271-MUM
1MRS 751107-MUM Protection Relay
Operator’s Manual
REX 521
7
1.6. Document revisions
1.7. Safety information
Version Revision number Date History
D25.03.2004 Document layout changed
E04.06.2004 Pictures updated in tables, chapter 3.2.1.
Changes in tables, chapters 3.4.1. and 3.5.1.
Warning text added, chapter 4.1.
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
discharge. Unnecessary touching of electronic components must
therefore be avoided.
The frame of the device has to be carefully earthed.
Only a competent electrician is allowed to carry out the electrical
installation.
Non-observance can result in death, personal injury or substantial
property damage.
Breaking the sealing tape on the upper handle of the device will result
in loss of warranty and proper operation will no longer be guaranteed.
When the plug-in unit has been detached from the case, do not touch
the inside of the case. The relay case internals may contain high
voltage potential and touching these may cause personal injury.
!
8
1MRS 751107-MUM
Protection Relay
Operator’s Manual
REX 521
2. Introduction
2.1. REX 521 protection relay
The protection relay REX 521 is designed for protection, control, measuring and
supervisioninmediumvoltagenetworks.Typicalapplications includeincomingand
outgoing feeders as well as substation protection. The protection relay is provided
with energizing inputs for conventional current and voltage transformers. Also a
hardware version with inputs for current and voltage sensors is available.
The protection relay is based on a multiprocessor environment. The HMI including
an LCD (liquid chrystal display) with different views makes the local use easy and
informs the user via indication messages. Modern technology is applied both in
hardware and software solutions.
The REX 521 is part of the substation automation concept for distribution
automation and extends the functionality and flexibility of the concept.
1MRS 751107-MUM Protection Relay
Operator’s Manual
REX 521
9
3. Instructions
3.1. HMI features
• Push-buttons for navigating, [C] Clear/Cancel and [E] Enter
• Language selection
• Setting values are protected by passwords
• Display backlight
• Display contrast
• Display test
• Selection of primary values
• Optically isolated serial communication port
• Three LED indicators
• Eight programmable alarm LEDs
10
1MRS 751107-MUM
Protection Relay
Operator’s Manual
REX 521
Fig. 3.1.-1 HMI front view
1. Alarm LEDs
2. LED indicator: Trip, CBFP
3. LED indicator: Start, Block
4. LED indicator: Ready, IRF, Test mode
5. LCD
6. Optical PC connector
7. Navigation buttons
8. Clear/Cancel
9. Enter
REX 521_face_a
REX 521
READY START
1
2
3
4
5
6
7
8
9
TRIP
E
C
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6
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