Description
GE SR737-5-5-HI-485
Technical Specifications
- Manufacturer: General Electric (GE)
- Product Type: Motor Protection Relay
- Series: SR737 Series
- Communication: RS-485 Modbus
Functional Features
- Comprehensive Protection: Overload, phase unbalance, ground fault, and under/over voltage protection.
- Motor Monitoring: Real-time monitoring of current, voltage, power, and temperature.
- Communication: RS-485 interface for remote monitoring and control via Modbus protocol.
- High Integrity: “HI” designation indicates enhanced reliability and diagnostic capabilities.
Application Scenarios
- Motor Protection: Protection of critical motors in power generation, oil & gas, and manufacturing.
- SCADA Integration: Remote monitoring and control of motor assets.
Performance Parameters
- Protection Accuracy: High-accuracy current and voltage measurement.
- Communication Speed: Reliable RS-485 communication at standard baud rates.
Material Composition
- Ruggedized enclosure with high-quality current transformers and electronic components.
Structural Characteristics
- Form Factor: Panel-mount relay with LCD display.
- Interface: Local keypad and display for configuration and monitoring.
Working Principle
Continuously samples motor electrical parameters, compares them to configured protection curves, and initiates trip commands when faults are detected while communicating status via RS-485.
Installation Requirements
- Mount in control panel with adequate ventilation.
- Connect CTs, VTs, and RS-485 communication cable per wiring diagram.
Usage Precautions
- Configure protection settings based on motor nameplate and application.
- Use shielded twisted-pair cable for RS-485 communication.
