GE 489-P5-HI-A1-E SR489 generator protection system series modules

Generator stator differential protection

100% stator ground fault protection

Backup phase distance protection

Sensitive directional power protection

Circuit breaker fault protection

Effectively ensures generator safety.

Monitors voltage, current, frequency, power factor, etc., with overcurrent/undervoltage/overvoltage protection against grid fluctuations.

Supports stator overheat protection (via PT100 sensors) and bearing temperature monitoring to prevent winding damage.

Controls generator start/stop and grid switching, uploading data to SCADA via communication interfaces (e.g., Modbus RTU/TCP) for centralized monitoring.

As transformer backup protection, detects ground faults via zero-sequence current and prevents damage from phase sequence errors.

Provides rapid protection against motor locked rotor, overload, and phase loss to avoid production interruptions (e.g., pressure anomalies from natural gas pipeline compressor shutdown).

Supports temperature monitoring (winding/bearing) in explosion-proof environments to prevent safety accidents from overheating.

Integrates with plant PLC systems for  control of production processes and motor status (e.g., automatic speed adjustment based on process parameters).

Monitors motor parameters under heavy loads, using inverse-time overcurrent protection to prevent long-term overload damage (e.g., impact current protection during rolling mill start/stop).

Connects to industrial IoT platforms via Ethernet for remote parameter adjustment and fault early warning (e.g., predicting bearing wear trends from historical data).

Supports load unbalance protection to prevent rotor overheating from phase loss or uneven loading, ensuring continuous production (e.g., steel continuous casting machine drive motors).

Automatically controls motor start/stop based on water level sensors (e.g., pumps running according to sump , reducing manual intervention.

Uploads operation data to municipal monitoring centers via Modbus TCP for remote maintenance (e.g., automatic alarm SMS for faults).

Provides phase loss and undervoltage protection to prevent pump shutdown from municipal power fluctuations, ensuring continuous water supply/drainage.

Monitors voltage build-up time and frequency stability during generator start-up to ensure seamless backup power switching (e.g.,  control with UPS systems).

Prevents reverse power flow from generators to the mains via reverse power protection, ensuring maintenance safety.

Integrates with data center BMS (Building Management System) to display real-time generator load rate, fuel consumption, etc., for optimized energy management.

Provides ship-specific reverse sequence (phase sequence error) and underfrequency protection (prevents low frequency from diesel governor failures).

Waterproof and dustproof design adapts to marine environments, enabling parallel generator control via CANopen or Modbus communication with ship PMS (Power Management System).

Overload and short-circuit instantaneous trip functions quickly isolate faults to prevent ship power system paralysis and ensure navigation safety.

Frequency deviation protection adjusts generator output in real-time to maintain microgrid frequency within 50/60Hz±0.5Hz (e.g., frequency regulation during wind power fluctuations).

Integrates with EMS (Energy Management System) via communication interfaces to automatically adjust generator output based on renewable energy generation, optimizing energy allocation.

LVRT (Low Voltage Ride Through) protection prevents generator disconnection during grid voltage dips, enhancing microgrid reliability.