GE 750 Instruction Manual page 227

CHAPTER 5: SETPOINTS

CURRENT
750 FEEDER MANAGEMENT RELAY – INSTRUCTION MANUAL
Current Demand
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PATH: SETPOINTS S6 MONITORING
[]
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
The current demand for each phase is calculated individually, and the demand for each
phase is monitored by comparing to a single current demand pickup value. If the current
demand pickup is equaled or exceeded by any phase, the relay can cause an alarm or
signal an output relay.
For the
THERMAL 90% RESPONSE TIME
current to indicate 90% of the actual value. This setpoint allows the user to approximately
match the response of the relay to analog instruments. This setpoint is visible only if
is "Thermal Exponential".
MEASUREMENT TYPE
For the setpoint, enter the time period over which the current demand
TIME INTERVAL
calculation is to be performed. This setpoint is visible only if
Interval" or "Rolling Demand".
See Common Setpoints on page 5–6 for additional setting details.
 
DEMAND CURRENT
CURRENT DEMAND
FUNCTION: Disabled
MEASUREMENT TYPE:
Thermal Exponential
THERMAL 90% RESPONSE
TIME: 15 min
TIME INTERVAL:
20 min
CURRENT DEMAND
RELAYS (3-7): -----
CURRENT DEMAND
PICKUP: 1000 A
setpoint, enter the time required for a steady state
S6 MONITORING
Range: Disabled, Alarm,
Latched Alarm,
Range: Thermal Exponential,
Block Interval, Rolling
Range: 5 min, 10 min, 15
min, 20 min, 30 min,
Range: 5 min, 10 min, 15
min, 20 min, 30 min,
Range: Any combination of
the 3 to 7 Auxiliary
Range: 10 to 10000 A in
steps of 1
is "Block
MEASUREMENT TYPE
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