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5-194
L60 Line Phase Comparison System
GE Multilin
5.5 GROUPED ELEMENTS
5 SETTINGS
5
The undervoltage delay setting defines the family of curves shown below.
(EQ 5.25)
where:
T
= operating time
D
= undervoltage delay setting (
D
= 0.00 operates instantaneously)
V
= secondary voltage applied to the relay
V
pickup
= pickup level
Figure 5–105: INVERSE TIME UNDERVOLTAGE CURVES
At 0% of pickup, the operating time equals the
UNDERVOLTAGE DELAY
setting.
T
D
1
V
V
pickup
------------------
–
⎝
⎠
⎛
⎞
----------------------------------
=
842788A1.CDR
% of voltage pickup
Time
(seconds)
NOTE
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 ...