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5-124
L60 Line Phase Comparison System
GE Multilin
5.5 GROUPED ELEMENTS
5 SETTINGS
5
•
BRK 2 AUX CONTACT
: If supervision of two breakers is required, this setting is used to assign a FlexLogic™ operand
to control open/close state of the Breaker #2 with either 52a or 52b type contact to create logic “1” when the breaker is
open.
•
BRK 2 CONT SUPV
: Selects a supervising element such as a test/normal switch usually used in breaker 2 control
schemes or any other elements. If no element is required, the default value “Off” should be used.
•
OPEN BREAKER KEYING PKP DELAY
: Delays the operation of open breaker keying to override disagreement
between main and auxiliary contacts of the breaker or any other operating conditions.
•
OPEN BREAKER KEYING RST DELAY
: Delays the reset of open breaker keying to override disagreement between
main and auxiliary contacts of the breaker or any other operating conditions.
•
WEAK-INFEED KEYING
: This setting assigns a sensitive phase-current element for weak-infeed keying control. It
should be normally picked up with a minimum line load current. An instantaneous overcurrent element or a group of
overcurrent elements are suitable for this purpose.
•
WEAK-INFEED SUPV
: This setting selects a weak-infeed supervising element from FlexLogic™ operands. An under-
voltage element, auxiliary contacts of breakers indicating close position, or other elements can be useful for no-current
supervision.
•
WEAK-INFEED PICKUP DELAY
: This setting delays operation of weak-infeed keying during some transient condi-
tions (such as breaker reclosure, etc.).
•
WEAK-INFEED RESET DELAY
: The weak-infeed keying function incorporates a default 35 ms reset delay to assure
reset coordination with the FDH trip-level fault detector at the remote terminal during fault clearing. The default reset
time can be changed according to local conditions.
Figure 5–53: OPEN BREAKER ECHO SCHEME LOGIC
SETTING
SETTING
SETTING
SETTING
SETTING
SETTING
SETTING
SETTING
FLEXLOGIC OPERAND
OPEN BREAKER KEYING:
BRK 1 CONTACT SUPV:
BRK 2 CONTACT SUPV:
OPEN BRK KEYING PKP
DELAY: 00.000S
WEEK-INFEED
PICKUP DELAY:
OPEN BRK KEYING RST
DELAY: 00.000S
WEEK-INFEED
RESET DELAY:
WEAK-INFEED
KEYING:
WEAK - INFEED
SUPV:
BRK 1
AUX CONTACT :
Off=0
SETTING
Off=0
Enabled=1
Off=0
Disabled=0
Off=0
Off=0
Off=0
OR
AND
AND
AND
AND
AND
827075A9.CDR
87PC BKR ECHO PKP
BRK 2
AUX CONTACT:
t
PKP
t
RST=35ms
t
PKP
t
RST
Summary of Contents for UR series
Page 2: ......
Page 4: ......
Page 12: ...xii L60 Line Phase Comparison System GE Multilin TABLE OF CONTENTS ...
Page 32: ...1 20 L60 Line Phase Comparison System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 54: ...2 22 L60 Line Phase Comparison System GE Multilin 2 2 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Page 438: ...7 8 L60 Line Phase Comparison System GE Multilin 7 2 TARGETS 7 COMMANDS AND TARGETS 7 ...
Page 478: ...8 40 L60 Line Phase Comparison System GE Multilin 8 3 FAULT LOCATOR 8 THEORY OF OPERATION 8 ...
Page 502: ...A 10 L60 Line Phase Comparison System GE Multilin A 1 PARAMETER LIST APPENDIXA A ...
Page 584: ...B 82 L60 Line Phase Comparison System GE Multilin B 4 MEMORY MAPPING APPENDIXB B ...
Page 622: ...D 10 L60 Line Phase Comparison System GE Multilin D 1 PROTOCOL APPENDIXD D ...
Page 634: ...E 12 L60 Line Phase Comparison System GE Multilin E 2 DNP POINT LISTS APPENDIXE E ...
Page 642: ...F 8 L60 Line Phase Comparison System GE Multilin F 3 WARRANTY APPENDIXF F ...