Core Features
Comprehensive protection function: covering stator differential, 100% stator grounding, demagnetization/overexcitation, reverse power, overcurrent/undercurrent, overvoltage/undervoltage, frequency abnormality, etc. The microprocessor drives rapid tripping (about 10ms) to ensure the safety of the generator.
Enhanced human-computer interaction: 40 character LCD large screen+LED indicator lights+numeric keypad, supporting local fault diagnosis, parameter setting, and event recording traceability, with a pull-out handle to prevent misoperation.
Adaptation to harsh environments: The H code represents conformal coating, which can resist corrosion, hydrogen sulfide, and high humidity, and is suitable for harsh working conditions such as offshore platforms and chemical industries.
Data monitoring and diagnosis: Real time monitoring of parameters such as current, voltage, power, frequency, temperature, etc., supporting waveform recording, trend analysis, and pre fault data tracing for easy maintenance and analysis.
Flexible integration and expansion: 8 analog outputs for easy access to DCS/PLC, 6 programmable relays adapted to unit control logic, communication interface supporting remote monitoring and data upload.
Application scenarios
Main or backup protection for small and medium-sized synchronous/asynchronous generators, such as cogeneration, self owned power plants, and distributed generation systems.
Comprehensive protection of generator stator, rotor, and electrical circuit, suitable for power generation equipment in industries such as petrochemicals, metallurgy, and mining.
Generator systems that require high reliability and resistance to harsh environments, such as protection of power generation equipment in offshore platforms and chemical corrosion areas.

GE SR489-P1-HI-A20-E-H｜Motor Management Relay｜