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Phone: +86 16626708626Description
The GE PQMII-T20-C is predominantly used in industrial and utility electrical power management applications where continuous and precise monitoring of power quality is critical. It is applied in environments such as substations, switchgear panels, industrial plants, and commercial facilities to ensure reliable electricity delivery and to detect power quality issues that can affect sensitive equipment. This meter helps engineers and facility managers identify disturbances such as voltage sags, swells, harmonic distortions, and frequency variations, which can compromise operational efficiency and equipment lifespan. The GE PQMII-T20-C is ideal for applications requiring detailed power quality analysis and energy management, contributing to optimized energy consumption and proactive maintenance.
Product Introduction and Positioning
The GE PQMII-T20-C is a robust power quality meter designed to monitor single or three-phase electrical systems, providing comprehensive real-time data on electrical parameters including voltage, current, real and reactive power, energy consumption, power factor, frequency, and harmonic distortion. It is a panel-mounted instrumentation device featuring a user-friendly interface with an illuminated 40-character display for straightforward local monitoring and configuration.
Within electrical management systems, the GE PQMII-T20-C facilitates power quality analysis, event logging, and waveform capture, assisting operators and engineers in diagnosing and correcting power system anomalies. Its programmable setpoints and multiple assignable output relays make it versatile for automated control functions such as load shedding and power factor correction. Designed for integration with SCADA and DCS networks, the meter supports standard communication protocols including Modbus and DNP 3.0 for seamless data sharing and system automation.
Key Technical Features and Functional Benefits
The GE PQMII-T20-C excels in comprehensive metering and power quality monitoring. It measures a wide range of electrical parameters with high accuracy (true RMS, ±0.2–0.5%), including voltage (20-60 VDC/20-48 VAC), current (0-5A), harmonics up to the 63rd order, and power factors. Its capability to record events and capture waveforms enables detailed transient analysis, crucial for preventive maintenance.
Equipped with multiple communication ports—an RS232 front port and two RS485 rear ports—the meter allows for flexible integration with control systems. Optional Ethernet connectivity via MultiNet enhances networking capabilities further. Programmable relays and analog outputs support custom control strategies, improving operational efficiency and protection mechanisms.
- PQMII-T20-C
The unit’s durable design with a compact 144mm x 144mm x 52mm panel mount form factor optimizes installation and visibility. Advanced software tools like EnerVista facilitate setup, monitoring, and historical data analysis, empowering maintenance teams to proactively manage power quality and prevent downtime.
Detailed Technical Specifications
| Parameter | Value |
|---|---|
| Model | GE PQMII-T20-C |
| Brand | General Electric (GE) |
| Product Type | Power Quality Meter |
| Voltage Measurement Range | 20–60 VDC / 20–48 VAC, 50/60 Hz |
| Current Measurement Range | 0–5 A, 50/60 Hz |
| Power Measurement | Real, reactive, and apparent power |
| Energy Measurement | Wh, varh, VAh, and energy cost |
| Power Factor Range | True power factor, displacement power factor |
| Frequency Range | 20–70 Hz |
| Harmonic Measurement | Up to 63rd order harmonics, THD, TIF |
| Communication Interfaces | RS232 front, two RS485 rear ports; Ethernet via MultiNet option |
| Display | Illuminated 40-character panel display |
| Outputs | 4 programmable output relays; 4 analog outputs (0–20 mA) |
| Dimensions | 144 mm x 144 mm x 52 mm |
| Weight | Approximately 1.5 kg |
| Operating Temperature Range | Industrial range (-10°C to +55°C typical) |
Related Modules or Compatible Units
IS210AEBIH1BAB – I/O board commonly paired with the PQM system for comprehensive control and monitoring.
IS220UCSAH1A-C – Analog I/O interface compatible with GE monitoring platforms.
IS210AEPSG1AFC – Power supply module supporting stable system operation.
IS220PDOAH1A – Digital output module for alarm and control interface.
IC693PWR330 – Power supply unit used in industrial automation cabinets.
Installation Notes and Maintenance Best Practices
During installation of the GE PQMII-T20-C, ensure that the panel cutout and mounting comply with manufacturer specifications, allowing proper ventilation and visibility of the display for operators. Cabling should follow grounding and shielding standards to minimize electrical noise and maintain measurement accuracy. Confirm power supply parameters and verify communication wiring before commissioning.
Maintenance involves regular cleaning of the device face and terminals to prevent dust accumulation. Periodic calibration and firmware updates are recommended to sustain accuracy and take advantage of new features. Monitoring event logs and waveform captures will enable early detection of power anomalies, aiding in preventive maintenance and reducing unexpected outages.
