ABB REL 301 User manual

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I.L. 40-386.12
It is recommended that the user of REL 301/302 equipment become acquainted with the information in this in-
struction leaflet and in I.L. 40-386.1 before energizing the system. Failure to do so may result in injury to per-
sonnel or damage to the equipment, and may affect the equipment warranty. If the REL 301/302 relay system
is mounted in a cabinet, the cabinet must be bolted to the floor, or otherwise secured before REL 301/302 in-
stallation, to prevent the system from tipping over.
All integrated circuits used on the modules are sensitive to and can be damaged by the discharge of static elec-
tricity. Electrostatic discharge precautions should be observed when handling modules or individual
components.
ABB does not assume liability arising out of the application or use of any product or circuit described herein.
ABB reserves the right to make changes to any products herein to improve reliability, function or design. Spec-
ifications and information herein are subject to change without notice. All possible contingencies which may
arise during installation, operation, or maintenance, and all details and variations of this equipment do not pur-
port to be covered by these instructions. If further information is desired by purchaser regarding a particular in-
stallation, operation or maintenance of equipment, the local ABB representative should be contacted.
Copyright ©ASEA BROWN BOVERI, ABB Power T&D Company Inc. 1993, 1994, 1995, 1996, 1997
This document contains information that is protected by copyright. All rights are reserved. Reproduction, adaptation, or
translation without prior written permission is prohibited, except as allowed under the copyright laws.
ABB does not convey any license under its patent rights nor the rights of others.
Trademarks
All terms mentioned in this book that are known to be trademarks or service marks are listed below. In addition,
terms suspected of being trademarks or service marks have been appropriately capitalized. ABB Power T&D
Company Inc. cannot attest to the accuracy of this information. Use of a term in this book should not be regarded
as affecting the validity of any trademark or service mark.
IBM and PC are registered trademarks of the International Business Machines Corporation
WRELCOM is the registered trademark of the ABB Power T&D Company Inc.
INCOM is the registered trademark of the Westinghouse Electric Corporation
!CAUTION

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I.L. 40-386.12
PREFACE
Scope
This manual describes the functions and features of the REL 301(Non-pilot Relay System) and REL 302 (Pilot
Relay System) Reclosing/Synchronism check option. It is intended primarily for use by engineers and techni-
cians involved in the installation, testing, operation and maintenance of the REL 301/302 Reclosing Option.
Equipment Identification
The REL 301/302 equipment is identified by the Catalog Number on the REL 301/302 chassis nameplate. The
Catalog Number can be decoded by using Catalog Number Table in Section 1.6 which is included for reference
only.
Production Changes
When engineering and production changes are made to the REL 301/302 equipment, a revision notation
(SUB #) is reflected on the appropriate schematic diagram, and associated parts information.
Equipment Repair
Repair work is done most satisfactorily at the factory. When returning equipment, contact your field sales rep-
resentative for RMR authorization. All equipment should be returned in the original packing containers if possi-
ble. Any damage due to improperly packed items will be charged to the customer.
Document Overview
Section 1 provides the Product Description. Section 2 presents the installation and test of the reclosing option.
Contents of Relay System
The REL 301/302 Relay System includes the style numbers, listed below, for each module.
Module Style Number
FT-10 Surge Protection 1502B35
Backplane Surge Protection 1612C53
Option (Reclosing/synch-check) 1614C19
Filter (Input Module) 1612C34
Microprocessor 1613C55
Display (Optional) 1613C69
Power Supply/Relay Outputs 1612C68
VT 1612C80
CT 1612C79
RS 232 Communication Interface 1614C94

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I.L. 40-386.12
TABLE OF CONTENTS
Section Number Page Number
SECTION 1PRODUCT DESCRIPTION
1.1 INTRODUCTION......................................................1-1
1.2 STANDARD FEATURES FOR RECLOSING OPTION .............................1-2
1.3 OPTIONAL FEATURES FOR RECLOSING OPTION .............................1-3
1.4 RECLOSE/SYNCHRONISM CHECK SOFTWARE................................1-3
1.5 SELF-CHECKING SOFTWARE ............................................1-3
1.6 UNIQUE REMOTE COMMUNICATIONS PROGRAM..............................1-3
1.6.1 ABB BULLETIN BOARD................................................1-4
1.7 SYNCHRONISM CHECK OPTION..........................................1-4
1.7.1 APPLICATION (120 VOLT SYNCHRONISM INPUT)..............................1-4
1.8 REL 301/302 CATALOG NUMBERS.......................................1-6
SECTION 2INSTALLATION AND TESTING OFRECLOSING/SYNCH CHECK OPTION
2.1 INSTALLING THE RECLOSING AND SYNCH-CHECK OPTION ......................2-1
2.2 TEST PLUGS AND FT SWITCHES ........................................2-1
2.3 EXTERNAL WIRING...................................................2-1
2.4 RECLOSING/SYNC-CHECK DESCRIPTION ...................................2-2
2.4.1 DISPLAY MODULE (MMI) ..............................................2-2
2.4.2 LED INDICATORS ....................................................2-2
2.4.3 LEDS AND DISPLAY RESET ............................................2-2
2.5 FRONT PANEL OPERATION .............................................2-4
2.5.1 READY MODE ......................................................2-4
2.5.2 SETTINGS MODE (SET)................................................2-4
2.5.3 TARGETS MODE.....................................................2-5
2.5.4 STATISTICS MODE ...................................................2-5
2.5.5 TEST MODE........................................................2-6
2.5.6 LOCKOUT MODE.....................................................2-7
2.5.7 DISABLING THE RECLOSER.............................................2-7
2.6 RECLOSING/SYNC-CHECK OPERATION.....................................2-7
2.7 TIMING DIAGRAM FOR ATYPICAL RECLOSING SYNC-CHECK SEQUENCE ...........2-8
2.8 ACCEPTANCE TEST .................................................2-13
2.9 DETAILED EVALUATION TESTS WITH BREAKER EMULATION ....................2-15
2.10 SYNCHRONISM/VOLTAGE CHECK OPTION ACCEPTANCE TEST ..................2-18
2.11 DETAILED EVALUATION TESTS SYNCHRONISM/VOLTAGE CHECK OPTION ..........2-19
2.12 FUNCTIONS DESCRIPTION.............................................2-21

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LIST OF FIGURES
Figure Number Page Number
FIGURE 1-1 REL 301/302 RECLOSE/SYNCHRONISM CHECKOPTION MODULE .................1-1
FIGURE 2-1 REAR VIEW OF REL 301/302 WITH RECLOSER/SYNCH-CHECK OPTION INSTALLED....2-3
FIGURE 2-2 REL 301/302 SYSTEMS EXTERNAL CONNECTION (SHEET 1)...................2-26
FIGURE 2-3 REL 301/302 SYSTEMS EXTERNAL CONNECTION (SHEET 2)...................2-27
FIGURE 2-4 CONNECTION DIAGRAM FOR A-PHASE TOGROUND SYNC POTENTIAL ............2-28
FIGURE 2-5 CONNECTION DIAGRAM FOR PHASE TOPHASE SYNC POTENTIAL................2-29

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I.L. 40-386.12
REL301/302 RECLOSING SOFTWARE VERSION 1.20
FEATURES ADDED AND IMPROVEMENTS MADE
TO RECLOSING SOFTWARE VERSION 1.10
1. Improved the application flexibility by Adding a setting of “Sync Volt” with a selection of “Line/Bus” to cor-
rectlyindicatetheconnectionofsynchronisminputvoltageonlineorbusside.Previouslythe‘bus’reference
was fixed as the protection source and ‘line’ reference was fixed as the synchronism source. This improve-
ment causes LED indication, metering and targeting of ‘line’ and ‘bus’ to accurately reflect the connection
(e.g. HLDB, HBDL).
2. Additional functionality was added to the 52a input. To accommodate both existing logic and the new man-
ual close logic, the setting for the input 52a was changed from “52a?” to “52a/Mancls”. “52a/Mancls” has the
following setting options:
a) “Yes, 52a” for the 52b NOT 52a (pole disagreement) logic application. Previously, the setting for this logic
was “52a? = Yes”.
b) “Man Close” configures 52a input for use with manual close logic.
c) “No, Disabled” 52a input is not used by the reclosing logic functions.
3. Added a manual close function with the following settings. Manual close allows the operation of the REL
301/302 close contacts by energizing the 52a input. Manual close is available with the basic reclosing func-
tion and is enhanced when used with the optional voltage/synchronism check logic. The voltage/synchro-
nism check settings will be displayed only when the manual close function is enabled (“Man Close” = “Yes”)
and the optional voltage/synchronism check logic is present:
a) “Man Close” = “Yes/No” - Enable/disable manual close function
b) “Man HLDB” = “Yes/No” - Manual close with Hot Line Dead Bus voltage check.
b) “Man HBDL” = “Yes/No” - Manual close with Hot Bus Dead Line voltage check.
c) “Man SYNC”= “Yes/No” - Manual close with synchronism check.
d) “Max Wait” = “0-990 sec” or “No Time Limit”. Maximum time allowed to wait for voltage check and/or
sync check before reclosing logic goes to lockout state. If No Time Limit is chosen then
logic waits indefinitely for voltage or sync check.
4. Corrected metering and targeting error for 120 volt synchronism input voltage option. Previously, when us-
ing the 120 volt version of the reclosing logic, the voltage would be displayed as 70 volts instead of the cor-
rect value of 120 volts. In Version 1.20, of the firmware, the correct voltage value is displayed and targeted.
As stated in paragraph 1 above, this also allows the user to set the synchronism voltage reference for either
line side or bus side, maintain the reference (protection) voltage at 70 Vrms and display the correct voltage
level from the 120 volt synchronism voltage input.
5. Corrected the setting range of “Live” voltage from 30-70 Vrms to 50-120 Vrms and the “Dead” voltage from
0-30 Vrms to 0-50 Vrms for the 120 volt synchronism check option. Previously the voltage ranges were dis-
played as the 70 volt ranges even when the 120 volt synchronism check option had been supplied.

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I.L. 40-386.12
REL301 AND REL302 RECLOSING SOFTWARE VERSION 1.10
FEATURES ADDED AND IMPROVEMENTS MADE
TO RECLOSING SOFTWARE VERSION 1.01
1. Disabled contact test if recloser is in “remote only” settings mode or if recloser is disabled by setting
choice.
2. Added capability to test front panel reclosing LEDs and output contacts, via the Man-Machine Interface or
communications ports.
3. Added time stamping of reclosing targets. Time stamp data is only available through one of the communi-
cation ports.
4. Improved reclosing module communications by replacing “Recloser OFF” text with “Recloser Disabled”
when reclosure is disabled by setting choice.
5. Improved recloser flexibility by changing action taken by logic when maximum number of reclosures set-
ting (Cum.Recl) is reached. Now, instead of the recloser locking out the alarm (AL1) is set.
6. Improved function of RECLOSING IN SERVICE LED to reflect loss of dc, reclosing module failure, reclos-
ing being disabled by setting choice, and/or Man Machine Interface not in “Ready” or “Lockout” mode.
7. Improved recloser flexibility by adding programming capability to the In-Progress and Failed-Close con-
tacts. Now these contacts can be used to reflect various sync-check status output.
8. Added security for setting changes by preventing the disabling of local setting function from a communica-
tion port when front display is in value change mode.

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1. 2. Standard Features for Reclosing Option
• Multi-Shot Reclosing with up to four reclosures.
• Reclosure dead Time:
0.01- 250 seconds.
• Selectable signal to initiate a reclosure:
52b only
RI only (internal from protection or external contact input)
52b or RI (internal from protection or external contact input)
52b and RI (internal from protection or external contact input)
• External reclose initiate input (EXT RI) to allow operation of reclosing function independent
of protection function
• Drive to lockout (DR LOCK) input for manual trips and breaker failure or bus lockout relay
input.
• Hold input (HOLD) to freeze reclose cycle at point input applied. Cycle resumes when input
removed.
• Manual close input (user selectable use of 52a input) for initiating close either directly or
through optional Voltage/Synchronism check logic.
• Two electrically separate close contacts (CLOSE-1, 2) for breaker closing
• Contact closure duration:
0.01 - 2 seconds.
• Failed Reclose function
Failed Reclose time: 1 - 250 seconds.
• Max cycle function
Max cycle time: 1 - 990 seconds.
• Follow breaker function.
• Breaker operation and maintenance control:
Programmable maximum reclosures before alarm, reset duration and recovery time.
• Reclosing event record:
Reclosure number, result, time and synchronism information are recorded as target.
Two most recent reclosing sequences target data are available through front panel LCD
display. Sixteen recent targets are available with remote communication.
• Statistic data for reclosures and LOCKOUTs.
• Test function for output contacts, LEDs and inputs.
• Real time clock to time stamp reclosing events and current time.
• Alarms for:
Relay Failure
Reclosure Failure
Reclosure LOCKOUT
Reclosing in progress

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• Capability to disable Reclosing and Synchronism function from front panel setting.
1. 3. Optional Features for Reclosing Option
• Selectable voltage check and synchronism check
Hot Line Dead Bus (HLDB) or Hot Bus Dead Line (HBDL) voltage supervision selection for
each reclosure and Manual Close.
Selectable live and dead voltage levels,
Synchronism angle and synchronism time
Wait time:
0 - 990 seconds or infinite.
Synchronism condition time:
0.01 - 20 seconds.
Switched synchronism settings allow HLDB,HBDL and /or SYNC within any reclose se-
quence and Manual Close.
• 120 Volt phase to phase synchronism source input
1.4 RECLOSE/SYNCHRONISM CHECK
SOFTWARE
The reclose/synchronism check software includes the following functions:
a. All the reclose and synchronism check functions.
b. All the MMI functions.
c. Selectable output function.
d. Reclosing event recording.
e. Test functions
1.5 SELF-CHECKING SOFTWARE
Self-checking software includes the following functions:
a. Program Memory Check Sum
Immediately upon power-up, the relay does a complete EPROM checksum of program
memory. Afterwards, the Reclosing Relay continually verifies the program memory check-
sum.
b. Power Up RAM Check:
Immediately upon power-up, the relay does a complete test of the RAM data memory.
c. EEPROM Check:
Settings are stored in EEPROM in three identical arrays. These arrays are continuously
checked by the program. If any of the three array entrees disagree, a EEPROM failure is
detected.
1. 6. Unique Remote Communications Program(RCP)
Special remote communications software, RCP is provided for obtaining fault, metering and cur-
rent settings data as well as sending data to the REL301/302. RCP can best be described as a
user friendly way of using a personal computer (PC) to communicate with ABB protective relays
by way of pull-downs menus. By coupling a computer with the appropriate communications