GE PQM-C Power Quality Meter

Core Performance & Industrial Application

The GE (Multilin) PQM-C (Mod.519, firmware 65C360C4.000) is a digital three-phase power quality and energy metering device with the control option.

It samples each voltage and current 64 times per cycle for ±0.2% true-RMS metering of V, A, kW, kvar, VA, PF, frequency, energy and demand.

It performs harmonic analysis up to the 32nd order, THD, crest factor, K-factor, waveform capture, data logging and a 40-event recorder.

The C option adds 3 programmable output relays (4 total) and 4 programmable switch inputs for alarm and control.

It communicates over isolated RS485 Modbus RTU (1200-19200 bps) with a front RS232 service port for PC setup.

It is used as spare replacement in low-voltage distribution and power monitoring switchboards.

Technical Specifications

▶ Product type: Power quality / energy meter

▶ Brand: GE (Multilin, GE Vernova)

▶ Model: PQM-C Mod.519; firmware 65C360C4.000

▶ AC current input: 1 A / 5 A CT secondary; 20×CT 1 s, 100×CT 0.2 s; ±0.2% FS

▶ AC voltage input: 20-600 VAC; direct or VT 120-72000:69-240; burden <0.1 VA

▶ Accuracy: Voltage/current ±0.2% FS; kW/kvar ±0.4%; THD ±2.0%; frequency 0.02 Hz

▶ Control power: 90-300 VDC / 70-265 VAC 50/60 Hz; 10 VA nominal, 20 VA max; 100 ms holdup

▶ Communication: RS485 Modbus RTU 2-wire half-duplex; RS232 front port; up to 19.2 kbps

▶ Control option: 4 output relays total; 4 programmable digital switch inputs (24 VDC)

▶ Display: Illuminated 40-char display with keypad

▶ Feature: Harmonic analysis, waveform capture, event recorder, trend logging

▶ Mounting: Panel flush mount

▶ Country of origin: USA

▶ Compliance: CE, UL certification

Industry Applications

Applied in three-phase switchboard power monitoring, harmonic diagnosis, energy cost allocation and PQM-C meter spare replacement.

Note: Confirm option code, CT/VT ratio and control power class against nameplate before ordering