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GE Multilin
L60 Line Phase Comparison Relay
5-47
5 SETTINGS
5.3 SYSTEM SETUP
5
Figure 5–12: DISTURBANCE DETECTOR LOGIC DIAGRAM
The disturbance detector responds to the change in currents of twice the current cut-off level. The default cut-off threshold
is 0.02 pu; thus by default the disturbance detector responds to a change of 0.04 pu. The metering sensitivity setting (
PROD-
UCT SETUP
DISPLAY PROPERTIES
CURRENT CUT-OFF LEVEL
) controls the sensitivity of the disturbance detector
accordingly.
827092A3.CDR
SOURCE 1
CURRENT PHASOR
PRODUCT SETUP/DISPLAY
PROPERTIES/CURRENT
CUT-OFF LEVEL
PRODUCT SETUP/DISPLAY
PROPERTIES/CURRENT
CUT-OFF LEVEL
PRODUCT SETUP/DISPLAY
PROPERTIES/CURRENT
CUT-OFF LEVEL
SOURCE 2
CURRENT PHASOR
SOURCE 6
CURRENT PHASOR
ACTUAL
SETTING
SETTING
SETTING
ACTUAL
ACTUAL
FLEXLOGIC OPERAND
FLEXLOGIC OPERAND
FLEXLOGIC OPERAND
I
_1
I
_1
I
_1
SRC 1 50DD OP
SRC 2 50DD OP
SRC 6 50DD OP
I
_2
I
_2
I
_2
I
_0
I
_0
I
_0
OR
OR
OR
Where ’ is 2 cycles old
I
Where ’ is 2 cycles old
I
Where ’ is 2 cycles old
I
I
I
_1 - _1’ >2*CUT-OFF
I
I
_1 - _1’ >2*CUT-OFF
I
I
_1 - _1’ >2*CUT-OFF
I
I
_2 - _2’ >2*CUT-OFF
I
I
_2 - _2’ >2*CUT-OFF
I
I
_2 - _2’ >2*CUT-OFF
I
I
_0 - _0’ >2*CUT-OFF
I
I
_0 - _0’ >2*CUT-OFF
I
I
_0 - _0’ >2*CUT-OFF
Summary of Contents for L60
Page 2: ......
Page 4: ......
Page 24: ...1 14 L60 Line Phase Comparison Relay GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1...
Page 42: ...2 18 L60 Line Phase Comparison Relay GE Multilin 2 2 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2...
Page 470: ...D 10 L60 Line Phase Comparison Relay GE Multilin D 1 PROTOCOL APPENDIXD D...
Page 482: ...E 12 L60 Line Phase Comparison Relay GE Multilin E 2 DNP POINT LISTS APPENDIXE E...
Page 498: ...x L60 Line Phase Comparison Relay GE Multilin INDEX Z ZERO SEQUENCE CORE BALANCE 3 9...