Overview
The GE SR489-P5-LO-A20-E is a Generator Management Relay. It protects and monitors both synchronous and induction generators. GE Multilin designed this model for secure and reliable generator performance. It integrates advanced protection, diagnostics, and communication functions. The relay enhances system visibility and supports flexible control strategies.
Technical Specifications
- Model Number: SR489-P5-LO-A20-E
- Type: Generator Management Relay
- Manufacturer: GE Multilin / GE Grid Solutions
- Current Input Relays: P5 = 5 A phase CT secondaries
- Power Supply Options: LO = DC: 24–60 V; AC: 20–48 V @ 48–62 Hz
- Analog Outputs: A20 = 4–20 mA analog outputs
- Display Type: Enhanced LCD display
- Operating Temperature: -40°C to +70°C
- Humidity: 0–95%, non-condensing
- Dimensions: 21.6 cm x 22.4 cm x 25.2 cm
- Weight: 10 lbs.
- Communication Ports Parity: None, Odd, Even
- Draw Out Case: Included if listed in the quotation
- Harsh Environment Coating: Not available for this model
- High-Set Phase Overcurrent Elements: Provide trip function
- IRIG-B Amplitude Modulated: 2.5–6.0 Vpk-pk at 3:1 signal ratio
- Low Forward Power Time Delay: 0.2 to 120.0 seconds in 0.1-second steps
- Phase Overcurrent Voltage Restraint: Programmable fixed characteristic
- Pulse Output Pulse Width: 200 to 1000 ms in 1 ms steps
- Tachometer Configurable: Assignable to digital inputs 4 to 7
- Pollution Degree: II