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GE PQMII-T20

Technical Specifications

 

  • Voltage Measurement
    • Range: 100 V to 600 V phase-to-phase (direct connection); up to 34.5 kV with current transformers (CTs) and voltage transformers (VTs)
    • Accuracy: ±0.1% of reading (for voltage, current, power)
  • Current Measurement
    • Range: Up to 5 A (direct connection); scalable with CTs (up to 10,000 A)
    • Accuracy: ±0.1% of reading
  • Power Measurement
    • Active Power: ±0.1% of reading
    • Reactive Power: ±0.2% of reading
    • Apparent Power: ±0.1% of reading
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Detailed content

  • Frequency Measurement
    • Range: 45 Hz to 65 Hz
    • Accuracy: ±0.001 Hz
  • Harmonics Analysis
    • Measures up to 63rd harmonic for voltage and current
    • Total Harmonic Distortion (THD) calculation for voltage and current
  • Data Logging & Storage
    • Internal memory: Stores up to 1 year of trending data (at 1-minute intervals)
    • Supports external storage via USB
  • Communication Interfaces
    • Ethernet (TCP/IP, Modbus TCP)
    • RS-485 (Modbus RTU)
    • USB port (for configuration and data export)
  • Power Supply
    • Voltage: 85 V to 265 V AC/DC
  • Environmental Ratings
    • Operating Temperature: -25°C to +70°C
    • Humidity: 5% to 95% (non-condensing)
    • Protection Class: IP20 (panel-mounted)
Functional Characteristics
  • Comprehensive Monitoring: Tracks voltage, current, power (active, reactive, apparent), energy usage, frequency, harmonics, and power factor in real time.
  • Power Quality Analysis: Detects and records voltage sags, swells, transients, interruptions, and harmonic distortions, with timestamped event logs.
  • Advanced Data Visualization: Equipped with a backlit LCD display showing real-time metrics, trends, and event summaries.
  • Flexible Integration: Compatible with SCADA systems, building management systems (BMS), and energy management software via standard communication protocols.
  • User-Friendly Configuration: Configurable via front-panel buttons, USB, or web interface, allowing customization of measurement parameters, alarms, and data logging intervals.
  • Alarm Capabilities: Programmable alarms for over/under voltage, overcurrent, high THD, and other user-defined thresholds, with relay outputs for external alerts.
Application Scenarios
  • Industrial Facilities: Monitors power quality in manufacturing plants, ensuring stable operation of machinery and preventing downtime from electrical disturbances.
  • Commercial Buildings: Tracks energy consumption and power quality in office complexes, data centers, and hospitals, optimizing energy usage and reducing costs.
  • Utility Substations: Provides grid operators with detailed data on power flow, harmonics, and voltage stability, supporting grid management and maintenance.
  • Renewable Energy Systems: Integrates with solar, wind, or battery storage systems to monitor power output, grid integration, and compliance with utility standards.
  • Critical Infrastructure: Used in airports, seaports, and transportation hubs to ensure uninterrupted power supply and protect sensitive equipment from power quality issues.

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