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GE SR489-P5-HI-A20-E
Technical Specifications:
Manufacturer: General Electric (GE)
Series: 489 Generator Management Relay
Model: SR489-P5-HI-A20-E
Phase CT Secondary: 5 A
Control Power (HI): 90-300 VDC and 70-265 VAC (48-62 Hz)
Analog Output: 4 to 20 mA
Display: Enhanced LCD (larger than basic display)
Fuse Current Rating: 2.5 A
Fuse Type: 5x20mm HRC SLO-BLO Littelfuse, Model 215-02.5
Protection Features: Includes trip and alarm protection, metering, breaker failure, flash memory, trip coil supervision, VT fuse failure, etc.
Detailed content
Functional Characteristics:
Monitoring Capabilities: The relay monitors various operating parameters of the generator, such as voltage, current, frequency, and power.
Protection Actions: When parameters exceed safe limits, the relay triggers protection actions like disconnecting power or initiating alarms to prevent generator damage.
Control Functions: It can control generator startup, shutdown, and switching operations based on preset logic or external signals.
Programmability: The relay is programmable, allowing users to set parameters and logic based on specific application requirements.
Communication Capabilities: Supports multiple communication protocols and interfaces like Modbus, Profibus, etc., facilitating data exchange and remote monitoring with other devices or systems.
High Reliability: As a product from GE, a renowned provider of electrical and digital solutions, the relay undergoes rigorous quality control and testing to ensure stable operation in harsh industrial environments.
Application Scenarios:
Power Generation Plants: Used to monitor generator status and protect against overcurrent, overvoltage, loss of power, and other faults.
Industrial Generation: Ensures stable and reliable power supply for factory or industrial equipment.
Marine and Offshore Engineering: Monitors generator systems on ships or offshore platforms, enhancing power system safety and reliability.
Electrical Distribution Systems: Ensures stable generator operation when supplying power to the grid and provides timely protection during faults.
Building and Commercial Applications: Used in backup power systems to ensure reliable power supply during main power failures.
Mining and Oil & Gas Industries: Protects generator systems, ensuring continuous operation of equipment and processes.
Medical Facilities: Part of backup power systems to maintain medical equipment operation during power outages.
Transportation: Monitors and protects power systems in transportation sectors like trains, aircraft, or ships.
