GE 750 - Description; Settings

GE Power Management 750/760 Feeder Management Relay 10-
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10 S3 LOGIC INPUTS 10.6 BLOCK FUNCTIONS
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10.6 BLOCK FUNCTIONS 10.6.1 DESCRIPTION
The following logic input functions block various operations within the relay. Protection elements will NOT
detect faults, send messages, or illuminate indicators when blocked.
10.6.2 SETTINGS
■ BLOCK FUNCTIONS
■ [ENTER] for more
The Block Functions setpoints path is:
\ SETPOINTS \ S3 LOGIC INPUTS \ BLOCK FUNCTIONS
BLOCK 1 TRIP RELAY:
Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
Blocks operation of the 1 TRIP relay. Protection features will still detect faults,
display messages, and illuminate indicators.
BLOCK 2 CLOSE RELAY:
Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
A system condition monitor such as ‘synchrocheck’ or ‘closing spring charged’
can be connected for close supervision. If this function is selected, this input
must be de-asserted to permit operation of the 2 CLOSE relay.
BLOCK RESET:
Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
Blocks any attempted reset.
BLOCK UNDERVOLT 1:
Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
Blocks the Undervoltage 1 element from operating. This input can be used
where automatic / manual modes are required.
BLOCK UNDERVOLT 2:
Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
Blocks the Undervoltage 2 element from operating.
BLOCK UNDERVOLT 3:
Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
Blocks the Undervoltage 3 element from operating.
BLOCK UNDERVOLT 4:
Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
Blocks the Undervoltage 4 element from operating.
BLOCK UNDERFREQ 1:
Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
Blocks the Underfrequency 1 element from operating.
BLOCK UNDERFREQ 2:
Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
Blocks the Underfrequency 2 element from operating.
BLOCK FREQUENCY
DECAY: Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
Blocks the Frequency Decay element from operating.
BYPASS SYNCHROCHECK:
Disabled
Range: Disabled, Input 1, Input 2, ..., Input 20
Provides a manual override of the synchrocheck monitor, so an operator can
close the feeder breaker without the programmed synchrocheck condition.