Description
GE PQMII-T20 Technical Specifications:
- System Compatibility: Designed for three-phase AC networks.
- Communication: ModBus RTU over RS485.
- Analog Outputs: Multiple isolated analog outputs.
- Digital Inputs/Outputs: Programmable digital inputs and relay outputs.
Functional Features:
- Comprehensive Metering: Measures voltage, current, power, power factor, and frequency.
- Harmonic Analysis: Up to 63rd-order harmonic analysis and THD measurement.
- Event Recording: Captures and stores power quality events and waveforms.
- Programmable Control: Configurable setpoints for alarming and control.
Application Scenarios:
- Power quality monitoring in industrial plants.
- Harmonic analysis for VFD and non-linear load troubleshooting.
- Energy management and cost allocation.
Performance Parameters:
- Accuracy: High-precision true RMS measurements.
- Sampling Rate: High-speed sampling for transient capture.
- Data Logging: Extensive event and waveform storage.
Material Composition & Structural Characteristics:
- Enclosure: Ruggedized industrial housing.
- Display: Front-panel alphanumeric display with keypad.
- Connectors: Heavy-duty screw terminals for CT/PT and communication.
Working Principle: The meter samples voltage and current signals, digitizes them, and applies DSP algorithms to calculate power parameters and harmonic spectra. Data is displayed locally, transmitted via communication, or used to trigger relay outputs based on programmable setpoints.
Installation Requirements:
- CT/PT Wiring: Ensure correct polarity and ratio configuration.
- Communication: Use shielded twisted-pair cables for RS485.
- Grounding: Proper grounding to minimize noise.
Usage Precautions:
- Configuration: Use setup software for efficient parameter configuration.
- Safety: De-energize CT secondaries before modifying wiring.
- Maintenance: Periodically verify accuracy and inspect connections.
