Digital guide
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Woodward 8272-287
Product Name: Real Power Sensor for Load Sharing Systems
Product Introduction: A high-precision three-phase power sensing module engineered for generator load sharing and power monitoring applications. It accurately measures real power (kW) in three-phase AC circuits and outputs a standardized 4–20 mA signal proportional to power flow, supporting both imported and exported power measurement. Integrated load bridge and load-sharing line terminals enable direct integration into isochronous parallel control systems.
Detailed content
Technical Specifications:
- Power Supply: 24 VDC (18–32 VDC range)
- Input: 3-phase voltage (120/480 VAC) and current (5 A CT secondary)
- Output: 4–20 mA DC (isolated, proportional to real power)
- Measurement Range: Adjustable via internal DIP switches
- Accuracy: ±0.2% full scale
- Response Time: ≤100 ms
- Operating Temperature: -40 °C to +70 °C
- Mounting: DIN rail or panel mount
Functional Features:
- Precise true-RMS real power calculation for balanced/unbalanced loads
- Galvanic isolation between input, output, and power supply
- Configurable power direction (import/export) via wiring
- Built-in load sharing network interface for multi-generator parallel systems
- Low temperature drift and high noise immunity for industrial environments
- Compact, rugged enclosure for cabinet installation
Application Scenarios:
- Multi-generator isochronous parallel power stations
- Marine integrated power distribution systems
- Island and micro-grid independent power systems
- Industrial plant power monitoring and load management
- Utility interconnection power flow measurement
