RECLOSER CONTROL EVRC2A-N6,NT http://www.entecene.co.kr
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TECHNOLOGY
7.11. Negative Sequence High Current Lockout (46(50)-2)
The EVRC2A has a negative sequence high current lockout element. Negative sequence high
current lockout element in the EVRC2A is set based on CT secondary current as connected to the
current inputs. The negative sequence high current lockout element provides a definite time
delay characteristic versus current.
The negative sequence high current lockout element should be set equal to or faster than the
negative sequence high current trip element. The negative sequence high current lockout element
is enabled in the Primary, Alternate settings and [PROTECTION ENABLED] on user interface
panel.
Negative sequence high current lockout is not affected by the cold load pickup scheme.
The negative sequence high current lockout element in the following five settings should be
enabled for the negative sequence high current lockout.
PRIMARY SETTING / PROTECTION / H/C LOCKOUT-NEQ / Function
Range
OFF, TRIP, TR&AR
Default
OFF
Step
~
If function = OFF, the feature is not operational.
If function = Trip, the feature is operational. When the feature asserts
a TRIP condition, Trip operates.
If function = Trip & AR, the feature is operational. When the feature
asserts a TRIP & AR condition, it trips and alarms.
PRIMARY SETTING / PROTECTION / H/C LOCKOUT-NEQ / Relays(0-8)
Range
OFF, 0 ~ 8
Default
OFF
Step
1
Selects the required relays to operate when the feature generates a Trip.
[ H/C LOCKOUT-NEQ ]
Function: OFF
>Relays(0-8): OFF
Pickup(A): 8000
[ H/C LOCKOUT-NEQ ]
>Function: OFF
Relays(0-8): OFF
Pickup(A): 8000
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