1–16 PQM POWER QUALITY METER – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: OVERVIEW
OVERVOLTAGE MONITORING
PICKUP: 1.01 to 1.25 in steps of 0.01 × VT
DROPOUT: 97% of pickup
TIME DELAY: 0.5 to 600.0 in steps of 0.5 sec.
PHASES: Any 1 / Any 2 / All 3 (programmable) must be ≥ pickup to
operate
ACCURACY: Per voltage input
TIMING ACCURACY: –0.5 / +1 sec.
UNDERFREQUENCY MONITORING
REQ’D VOLTAGE: > 30 V applied in phase A
PICKUP: 20.00 to 70.00 in steps of 0.01 Hz
DROPOUT: Pickup + 0.03 Hz
TIME DELAY: 0.1 to 10.0 in steps of 0.1 sec.
ACCURACY: ±0.02 Hz
TIMING ACCURACY: ±100 ms
OVERFREQUENCY MONITORING
REQ’D VOLTAGE: > 30 V applied in phase A
PICKUP: 20.00 to 70.00 in steps of 0.01 Hz
DROPOUT: Pickup – 0.03 Hz
TIME DELAY: 0.0 to 10.0 in steps of 0.1 sec.
ACCURACY: ±0.02 Hz
TIMING ACCURACY: ±100 ms
POWER FACTOR MONITORING
REQ’D VOLTAGE: > 20 V applied in phase A
PICKUP: 0.50 lag to 0.50 lead step 0.01
DROPOUT: 0.50 lag to 0.50 lead step 0.01
TIME DELAY: 0.5 to 600.0 in steps of 0.5 sec.
TIMING ACCURACY: –0.5 / +1 sec.
DEMAND MONITORING
MEASURED VALUES: Phase A/B/C/N Current (A)
3φ Real Power (kW)
3φ Reactive Power (kvar)
3φ Apparent Power (kVA)
MEASUREMENT TYPE:
Thermal Exponential 90% response time
(programmable): 5 to 60 min. step 1
Block interval: (programmable): 5 to 60 min. step 1
Rolling Demand
time interval: (programmable): 5 to 60 min. step 1
PICKUP: A: 10 to 7500 in steps of 1
kW: 1 to 65000 in steps of 1
kvar: 1 to 65000 in steps of 1
kVA: 1 to 65000 in steps of 1
PULSE OUTPUT
PARAMETERS: +kWh, –kWh, +kvarh, –kvarh, kVAh
INTERVAL: 1 to 65000 in steps of 1
PULSE WIDTH: 100 to 2000 ms in steps of 10 ms
MIN. PULSE INTERVAL: 500 ms
ACCURACY: ±10 ms
Courtesy of NationalSwitchgear.com
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