GE PQMII, Instruction Manual

Page: 94 / 216

5–10 PQMII POWER QUALITY METER – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
5.2.7 Calculation Parameters
PATH: SETPOINTS
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S1 PQMII SETUP
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CALCULATION PARAMETERS
The PQMII can be programmed to calculate metering quantities and demand by various
methods.
•
EXTRACT FUNDAMENTAL : The PQMII can be programmed to calculate all metering
quantities using true RMS values or the fundamental component of the sampled data.
When this setpoint is set to “Disable”, the PQMII will include all harmonic content, up to
the 32nd harmonic, when making metering calculations. When this setpoint is set to
“Enable”, the PQMII will extract the fundamental contribution of the sampled data only
and use this contribution to calculate all metering quantities. Many utilities base their
metering upon fundamental, or displacement, values. Using the fundamental
contribution allows one to compare the quantities measured by the PQMII with the
local utility meter.
• CURRENT DEMAND TYPE : Three current demand calculation methods are available:
thermal exponential, block interval, and rolling interval (see the
Demand Calculation
Methods
table below). The current demand for each phase and neutral is calculated
individually.
• CURRENT DEMAND TIME INTERVAL : Enter the time period over which the current
demand calculation is to be performed.
„
CALCULATION [
Z
]
PARAMETERS
EXTRACT FUNDAMENTAL:
DISABLE
Range: Disable, Enable
MESSAGE
CURRENT DEMAND TYPE:
THERMAL EXPONENTIAL
Range: Thermal Exponential, Rolling
Interval, Block Interval
MESSAGE
CURRENT DEMAND TIME
INTERVAL: 30 min.
Range: 5 to 180 min. in steps of 1
MESSAGE
POWER DEMAND TYPE:
THERMAL EXPONENTIAL
Range: Thermal Exponential, Rolling
Interval, Block Interval
MESSAGE
POWER DEMAND TIME
INTERVAL: 30 min.
Range: 5 to 180 min. in steps of 1
MESSAGE
ENERGY COST PER kWh
10.00 cents
Range: 0.01 to 500.00 cents in steps of
0.01
MESSAGE
TARIFF PERIOD 1
START TIME: 0 min.
Range: 0 to 1439 min. in steps of 1
MESSAGE
TARIFF PERIOD 1 COST
PER kWh: 10.00 cents
Range: 0.01 to 500.00 cents in steps of
0.01
MESSAGE
TARIFF PERIOD 2
START TIME: 0 min.
Range: 0 to 1439 min. in steps of 1
MESSAGE
TARIFF PERIOD 2 COST
PER kWh: 10.00 cents
Range: 0.01 to 500.00 cents in steps of
0.01
MESSAGE
TARIFF PERIOD 3
START TIME: 0 min.
Range: 0 to 1439 min. in steps of 1
MESSAGE
TARIFF PERIOD 3 COST
PER kWh: 10.00 cents
Range: 0.01 to 500.00 cents in steps of
0.01