GE 339

6–174 339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
S6 MONITORING CHAPTER 6: SETPOINTS
Figure 6-83: Real Power Demand logic diagram
Reactive Power The Reactive Power Demand is monitored by comparing to a Pickup value. If the Reactive
Power Demand Pickup is ever equalled or exceeded, the relay can be configured to cause
an alarm or signal an output relay.
LED: PICKUP
Real Power Inputs
AN D
SETPOINTS
REAL PWR DEMAND FUNCTION : Disabled Alarm Latched Alarm
OR
SETPOINTS
REAL PWR DEMAND MEASUREMENT TYPE : Calculate Real Power Demand
SETPOINTS
REAL PWR DEMAND REAL POWER PICKUP : |P Demand | ≥PICKUP RUN
RealPwr Dmd PKP
AND AN D
Command
RESET
OR
LED: ALARM
REAL PWR DEMAND THERMAL 90% RESPONSE TIME : REAL PWR DEMAND TIME INTERVAL :
Three-Phase
Real Power (P)
FlexLogic Operands
S
LATCH
Set-
Dominant
R
SETPOINT
Do Not Operate, Operate
OUTPUT RELAY X
SETPOINTS
BLOCK 1: Off = 0 BLOCK 2: Off = 0 BLOCK 3: Off = 0
OR
898847A1.CDR