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GE UR Series Instruction Manual Page 217

Line differential relay.
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5 SETTINGS
5.6 CONTROL ELEMENTS
AR 1 RESET LOCKOUT ON MANUAL CLOSE:
This setting allows the autoreclose scheme to reset from Lockout when the breaker is manually closed regardless if the
breaker remains closed or not. This setting overrides the previous setting (
).
AR1 RESET LOCKOUT IF BREAKER CLOSED
AR1 BLK TIME UPON MNL CLS:
The autoreclose scheme can be disabled for a programmable time delay after the associated circuit breaker is manually
closed. This prevents reclosing onto a fault after a manual close. This delay must be longer than the slowest expected trip
from any protection not blocked after manual closing. If no overcurrent trips occur after a manual close and this time
expires, the autoreclose scheme is enabled.
AR1 DEAD TIME 1:
This is the intentional delay before first breaker automatic reclosure (1st shot) and should be set longer than the estimated
deionizing time following a three pole trip.
AR1 DEAD TIME 2:
This is the intentional delay before second breaker automatic reclosure (2nd shot) and should be set longer than the esti-
mated deionizing time following a three pole trip.
AR1 DEAD TIME 3:
This is the intentional delay before third breaker automatic reclosure (3rd shot) and should be set longer than the estimated
deionizing time following a three pole trip.
AR1 DEAD TIME 4:
This is the intentional delay before fourth breaker automatic reclosure (4th shot) and should be set longer than the esti-
mated deionizing time following a three pole trip.
5
AR1 ADD DELAY 1:
This setting selects the FlexLogic™ operand that introduces an additional delay (DELAY 1) to the initial set Dead Time (1 to
4). When this setting is "Off", DELAY 1 is by-passed.
AR1 DELAY 1:
This setting establishes the extent of the additional dead time DELAY 1.
AR1 ADD DELAY 2:
This setting selects the FlexLogic™ operand that introduces an additional delay (DELAY 2) to the initial set Dead Time (1 to
4). When this setting is "Off", DELAY 2 is by-passed.
AR1 DELAY 2:
This setting establishes the extent of the additional dead time DELAY 2.
AR1 RESET LOCKOUT DELAY:
This setting establishes how long the breaker should stay closed after a manual close command, in order for the autore-
closer to reset from Lockout.
AR1 RESET TIME:
A reset timer output resets the recloser following a successful reclosure sequence. The setting is based on the breaker
"reclaim time" which is the minimum time required between successive reclose sequences.
AR1 INCOMPLETE SEQ TIME:
This timer is used to set the maximum time interval allowed for a single reclose shot. It is started whenever a reclosure is
initiated and is active when the scheme is in the "RECLOSE IN PROGRESS" state. If all conditions allowing a breaker clo-
sure are not satisfied when this time expires, the scheme goes to "Lockout".
This timer must be set to a delay less than the reset timer.
NOTE
GE Power Management
L90 Line Differential Relay
5-133

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