Block Functions - GE 750 Instruction Manual

750/760
Feeder Management Relay

Block Functions

BLOCK
FUNCTIONS
5–24
PATH: SETPOINTS S3 LOGIC INPUTS
[ ] BLOCK 1 TRIP RELAY:
Disabled
BLOCK 2 CLOSE RELAY:
MESSAGE
Disabled
BLOCK RESET:
MESSAGE
Disabled
BLOCK UNDERVOLT 1:
MESSAGE
Disabled
BLOCK UNDERVOLT 2:
MESSAGE
Disabled
BLOCK UNDERVOLT 3:
MESSAGE
Disabled
BLOCK UNDERVOLT 4:
MESSAGE
Disabled
BLOCK UNDERFREQ 1:
MESSAGE
Disabled
BLOCK UNDERFREQ 2:
MESSAGE
Disabled
BLOCK FREQ
MESSAGE
DECAY: Disabled
BYPASS SYNCHROCHECK:
MESSAGE
Disabled
BLOCK BREAKER
MESSAGE
STATISTICS: Disabled
BLOCK NEG SEQ
MESSAGE
VOLTAGE: Disabled
BLCK NTR DISPLACEMNT:
MESSAGE
Disabled
BLOCK RESTORATION:
MESSAGE
Disabled
BLOCK REV POWER:
MESSAGE
Disabled
The logic input functions shown above block various operations within the relay.
Protection elements will not detect faults, send messages, or illuminate indicators
when blocked, except for the
A system condition monitor such as Synchrocheck or Closing Spring Charged can be
connected to the relay for close supervision. If
input must be de-asserted to permit operation of the Close Relay.
The
BYPASS SYNCHROCHECK
monitor, so an operator can close the feeder breaker without the programmed
synchrocheck condition.
The
BLOCK BRKR STATISTICS
data found on the
A3 MAINTENANCE
actual values pages. This data includes breaker operation and trip counters
CURRENT
along with breaker arcing current. This input could be used during testing to prevent
maintenance operations from being accumulated.
The setpoint is only visible when Mod 008 is enabled.
BLOCK REV POWER
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BLOCK FUNCTIONS
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
Range: Input 1 to Input 20, Disabled
setpoint.
BLOCK TRIP 1 RELAY
BLOCK CLOSE 2 RELAY
setpoint provides a manual override of the synchrocheck
setpoint blocks the accumulation of breaker statistical
and
TRIP COUNTERS
S3 Logic Inputs
is selected, this
A3 MAINTENANCE ARCING
GE Multilin