The GE PQMII-T20-C is a high-precision power quality meter, belonging to GE Multilin PQM II product series. As a core component for electrical system monitoring, it is specifically designed for continuous real-time monitoring and analysis of three-phase electrical systems. It accurately measures key power quality parameters, conducts harmonic analysis, and records power disturbances, widely applied in industrial plants, utilities, commercial facilities and low-to-medium voltage power systems. With its reliable performance and user-friendly design, it helps protect electrical assets, optimize system efficiency and ensure stable operation of power networks.
Technical Parameters & Specifications
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Item
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Specifications
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Product Model
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PQMII-T20-C
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Product Type
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Power Quality Meter, GE Multilin PQM II Series
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Manufacturer
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General Electric (GE), GE Multilin
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Power Supply
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20–60 VDC / 20–48 VAC, 50/60 Hz; Power consumption: 20 VA
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Measuring Input
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Voltage: 0–690 VAC (PT input); Current: 0–5 A (CT input), 50/60 Hz
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Measurement Accuracy
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Active power: ±0.5% reading; Voltage/Current: ±0.2% reading; Frequency: ±0.01 Hz
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Harmonic Analysis
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Up to 63rd order, with THD (Total Harmonic Distortion) and TIF (Telephone Interference Factor) analysis
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Sampling Capability
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128 samples/cycle; High-speed sampling for transient capture and waveform recording
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Input/Output
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1×4–20 mA analog input; 4×isolated analog outputs; 4×relay outputs (250 VAC/8 A resistive); 4×programmable switch inputs
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Communication Interfaces
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Front RS232, 2×rear RS485; Supports Modbus RTU, DNP 3.0 protocols; Optional Ethernet via MultiNet converter
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Data Logging
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Supports time-based and event-based logging; Up to 98,000 events; 500 voltage sag/swell events (VDR function)
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Operating Temperature
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-40°C to +60°C (-40°F to +140°F), adaptable to harsh industrial working environments
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Storage Temperature
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-40°C to +85°C (-40°F to +185°F), ensuring stable storage in extreme temperature conditions
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Relative Humidity
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5% – 95% (non-condensing), preventing moisture damage to internal components
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Protection Rating
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IP30 (front panel, IEC 60529), suitable for indoor industrial control panel installation
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Mounting Type
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Panel mount (96×96 standard size), easy to install in industrial control panels
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Dimensions (L×W×H)
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Approx. 144mm × 144mm × 52mm, compact design for space-saving installation
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Net Weight
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Approx. 1.5kg (3.3lbs), lightweight design facilitating installation and transportation
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Certifications
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CE, ANSI C12.20, IEC 61010 compliant, meeting international power quality monitoring standards
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Additional Features
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Field-upgradable firmware; Large backlit LCD display; Programmable alarm thresholds; Silent operation (natural air cooling)
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Product Features
The GE PQMII-T20-C integrates high precision, comprehensive monitoring and flexible integration, perfectly meeting the core needs of power quality management in industrial and commercial scenarios:
1. High-Precision Measurement: Equipped with advanced measurement technology, it provides accurate readings of voltage, current, power, power factor and frequency, ensuring reliable power quality analysis and data support for system optimization.
2. Comprehensive Harmonic & Disturbance Monitoring: Supports up to 63rd harmonic analysis and high-speed transient capture, records voltage sags, swells and other power disturbances, helping identify potential system faults in a timely manner.
3. Flexible I/O & Communication: Configurable analog and relay outputs, combined with multiple communication protocols, enable seamless integration with SCADA systems, PLCs and HMIs, facilitating remote monitoring and control.
4. Reliable & Durable: Adopts industrial-grade components and rugged construction, with strong anti-electromagnetic interference capability, ensuring long-term stable operation in harsh industrial electrical environments.
5. User-Friendly & Convenient: Large backlit LCD display for clear data viewing; field-upgradable firmware and programmable alarms simplify operation and maintenance, reducing management costs.
Other GE Similar Models
In addition to the GE PQMII-T20-C, GE provides a series of high-quality power quality meters and monitoring devices to adapt to different application scenarios:
1. GE PQMII-T20-C-A: An enhanced version of PQMII-T20-C, with extended communication options and enhanced data logging capacity, suitable for large-scale power monitoring systems.
2. GE EPM4000: A high-performance power quality meter, with advanced energy management functions, suitable for commercial and industrial energy monitoring scenarios.
3. GE PQM-Legacy: A legacy power quality meter (discontinued), replaced by the PQM II series, suitable for upgrading existing legacy monitoring systems.
4. GE EPM6000: A high-end power quality analyzer, supporting advanced waveform analysis and multi-channel monitoring, ideal for critical power systems in utilities and heavy industry.
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