The GE SR489-P5-LO-A20-E 489 Generator Management Relay is a multifunctional protection and control device designed for generator systems.
1. Key Functions
Generator Protection:
Provides comprehensive protection against overload, short-circuit, under/over-voltage, phase imbalance, reverse power, and ground faults.
Supports thermal overload protection via RTD inputs for temperature monitoring (e.g., windings, bearings).
Control & Monitoring:
Features 4–20 mA analog outputs for real-time data transmission to SCADA/PLC systems.
Includes a 40-character LCD display with diagnostic messages and adjustable setpoints.
Communication & Integration:
Supports Modbus RTU, DNP 3.0, and IEC 61850 protocols for seamless integration with industrial networks.
Equipped with RS485 ports and Ethernet (RJ45) for remote configuration and data logging.
2. Adaptability
Operates on 20–60 VDC or 20–48 VAC power, suitable for diverse industrial environments.
IP65-rated for dust/water resistance in harsh conditions.
3. Typical Applications
Industrial generators (e.g., manufacturing, oil/gas).
Marine and utility power systems.
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