GE 339

CHAPTER 4: ACTUAL VALUES A2 METERING
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–13
Current Demand
The relay measures Current Demand on each phase. These parameters can be monitored
to reduce supplier Demand penalties or for statistical metering purposes. Demand
calculations are based on the measurement type selected under
S6 MONITORING >
DEMAND
. For each quantity, the relay displays the Demand over the most recent Demand
time interval, the maximum Demand since the last maximum Demand reset, and the time
and date stamp of this maximum Demand value. Maximum Demand quantities can be
reset to zero with the
A3 RECORDS > CLEAR RECORDS command.
Path:
A2 METERING > CURRENT DEMAND 1
Path: A2 METERING > CURRENT DEMAND 2
LAST RESET
MM/DD/YY 00:00:00
CUR DEMAND 1 PH A
Range: 0.0 to 30000.0 A
MAX CUR DEMAND 1 PH A
Range: 0.0 to 30000.0 A
CUR DEMAND 1 PH B
Range: 0.0 to 30000.0 A
MAX CUR DEMAND 1 PH B
Range: 0.0 to 30000.0 A
CUR DEMAND 1 PH C
Range: 0.0 to 30000.0 A
MAX CUR DEMAND 1 PH C
Range: 0.0 to 30000.0 A
CUR DEMAND 1 PH A D/T
MM/DD/YY HH:MM:SS
CUR DEMAND 1 PH B D/T
MM/DD/YY HH:MM:SS
CUR DEMAND 1 PH C D/T
MM/DD/YY HH:MM:SS
Power Demand
The relay measures three phase Demand for real, reactive, and apparent power.
Path:
A2 METERING > POWER DEMAND
LAST RESET
MM/DD/YY 00:00:00
REAL PWR DEMAND
Range: 0.0 to 100000.0 kW
MAX REAL PWR DMD
Range: 0.0 to 100000.0 kW
REACTIVE PWR DMD
Range: 0.0 to 100000.0 kVar
MAX REACTIVE PWR DMD
Range: 0.0 to 100000.0 kVar