GE PQMII-T20 Power quality monitoring instrument

Product Description

GE Vernova PQMII-T20 is a three-phase power quality meter in the Multilin PQMII family. The T20 stands for transducer option with 4 isolated analog outputs, one 4–20 mA analog input and a second RS485 communication port. This meter integrates electrical metering, harmonic analysis, waveform capture, disturbance recording, event logging and programmable control functions. It is equipped with local keypad and backlit display, supports Modbus RTU and DNP3.0 protocols, and can connect to SCADA and DCS systems. It is widely used for power monitoring, energy statistics and power quality diagnosis on MV/LV distribution circuits, and serves as a common spare part for industrial distribution and substation feeders.

Specifications

• Model: PQMII-T20
• Brand: GE Vernova (Former GE Multilin)
• Type: 3-Phase Power Quality Meter
• Option Code: T20 = Transducer Option
• Analog Output: 4 isolated 0–20 mA / 4–20 mA, fully assignable
• Analog Input: 1 channel 4–20 mA
• Communication: Front RS232, dual rear RS485; Modbus RTU, DNP3.0
• Harmonic: Up to 63rd harmonic, THD & TIF
• Recording: VDR voltage disturbance recorder, waveform capture, up to 150 events, 98,000 data log entries
• Power Supply: 20–60 VDC / 20–48 VAC, 50/60 Hz
• Power Consumption: 20 VA
• HMI: 40-character backlit display + keypad
• Metering Accuracy: Class 0.5
• Mounting: Panel mount
• Optional Accessory: MultiNet Ethernet module
• Operating Temperature: -20℃ ~ +60℃
• Certifications: CE, UL

Application

1. Industrial Distribution: MV/LV switchgear, MCC feeder monitoring, energy consumption and power quality tracking
2. Power Utilities: Metering for transformers, generators, capacitor banks and busbars
3. Oil & Gas, Metallurgy & Mining: Harmonic monitoring, power factor regulation, demand load shedding interlock for critical loads
4. Commercial Buildings & Data Centers: Sub-metering, voltage sag/swell fault tracing
5. Water & Pulp Plants: Power data uploading to SCADA / DCS for remote distribution supervision
6. Retrofit & Maintenance: Replacement for legacy PQM, MPM, MTM Plus meters, spare stock for existing installations

Peer Series Models (PQMII Family)

1. PQMII Basic: Basic metering, 1×RS485 + 1×RS232
2. PQMII-T1: T1 transducer option, 4 isolated 0–1 mA analog outputs
3. PQMII-T20: This model, 4 isolated 0–20 mA analog outputs
4. PQMII-C: Control option, additional programmable relays & digital inputs
5. PQMII-A: Power analysis option, harmonics, waveform & disturbance recording
6. PQMII-T20-C: T20 transducer + C control
7. PQMII-T20-C-A: T20 + C + A full power quality package (popular full version)
8. PQM: Older generation predecessor of PQMII