GE 750 Instruction Manual page 245

CHAPTER 5: SETPOINTS
Note
NOTE

VT FAILURE
750 FEEDER MANAGEMENT RELAY – INSTRUCTION MANUAL
Coil Monitor 1 and 2 are programmed in this subgroup. They are two identical elements
that may be used to monitor trip or close coils. The operation of this feature is described in
Trip/Close Coil Supervision on page 3–15.
Detection of a failed circuit regardless of the breaker state (i.e. detection of a failed trip
circuit when the breaker is open) requires
this selection will require a wiring modification of the breaker, as detailed in Trip/Close Coil
Supervision on page 3–15.
Upon detection of failure in the Trip/Close coil circuit the "Trip/Close Coil Monitor" output is
latched when set for the Alarm function. Operator intervention is required for the reset.
FIGURE 5–54: Coil Monitor Logic
VT Failure

PATH: SETPOINTS S6 MONITORING
[]
MESSAGE
MESSAGE
BRKR STATE BYPASS
 
EQUIPMENT
VT FAILURE
FUNCTION: Disabled
VT FAILURE
RELAYS (3-7): -----
VT FAILURE
DELAY: 10 s
S6 MONITORING
to be "Enabled". Generally,
VT FAILURE
Range: Disabled, Alarm,
Latched Alarm,
Range: Any combination of 3
to 7 Auxiliary relays
Range: 0 to 60000 s in steps
of 1
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