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PQMII-T20-C-A is a power quality monitoring device developed by GE, designed to monitor and analyze real-time power quality parameters in electrical grids, including voltage, current, power, harmonics, and more. Below is a detailed overview:
- Voltage Rating: 20-60VDC or 20-48VAC (some models support 230/400VAC input).
- Current Rating: 5A input, with a measurement range up to 1000A.
- Frequency Range: 50/60Hz.
- Power Consumption: 20VA.
- Measurement Accuracy: Class 3 precision.
- Sampling Rate: 5kHz, enabling accurate capture of transient events.
- Harmonic Analysis: Up to 63rd harmonic.
- Communication Protocols: Modbus and DNP 3.0.
- Analog I/O: 1x 4-20mA analog input, 4x analog outputs.
- Digital I/O: 4x switch inputs, 4x relay outputs.

- Dimensions: Approximately 225mm × 165mm × 85mm.
- Weight: Approximately 2kg.
- Protection Class: IP20.
- Mounting Options: Various installation methods available for flexibility.

- Comprehensive Parameter Monitoring: Measures current, voltage, active/reactive power, energy consumption, power cost, power factor, and frequency.
- Event Recording: Stores up to 500 event records for grid stability analysis.
- Status Monitoring & Control: Programmable setpoints and 4 assignable output relays for basic alarms (e.g., over/under current/voltage, imbalance), demand-based load shedding, and capacitor power factor correction control.
- User Interface: Intuitive LCD display for easy operation and monitoring.
Widely used in industrial manufacturing, commercial buildings, data centers, hospitals, schools, and renewable energy projects (e.g., wind and solar power). Ideal for scenarios requiring precise power quality monitoring and management.

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