GE SR489-P5-LO-A20-E Generator Protection Relay – Industrial Control Solution

GE SR489-P5-LO-A20-E Generator Protection Relay – Industrial Control Solution

    The GE SR489-P5-LO-A20-E Generator Protection Relay is designed to safeguard generators from potential faults and ensure optimal performance. It offers comprehensive protection features and advanced monitoring capabilities, making it ideal for industrial applications.

Communication Ports:None, Odd, Even

Harsh Environment Coating:Not available on this model

High-Set Phase Overcurrent Elements Trip:IRIG-B Amplitude Modulated 2.5 to 6.0 Vpk-pk at 3:1 signal ratio

Low Forward Power Time Delay:0.2 to 120.0 s in steps of 0.1

Phase Overcurrent Voltage Restraint:Programmable fixed characteristic

Pollution Degree:II

Pulse Output Pulse Width:200 to 1000 ms in steps of 1

Tachometer Configurable:Assignable to digital inputs 4 to 7

Weight:Approximately 10 lbs

Analog Current Output Isolation:36 Vpk (isolated with RTDs and analog inputs)

Case Drawout:Fully drawout (automatic CT shorts)

Digital Inputs:489

Sensor Supply:24 V DC at 20 mA max impedance

Impedance Time Delay:0.1 to 100.0 s in steps of 0.1

Negative Sequence Overcurrent Pickup Level:3 to 100% FLA in steps of 1

Phase Distance Characteristics:Offset mho RTD inputs

Sequential Trip Configurable:Assignable to digital inputs 1 to 7

Shipping Weight:7.7 kg or 17 lbs

Thermal Model Curve Biasing:Phase unbalance, hot/cold curve ratio, stator

    The GE SR489-P5-LO-A20-E is a high-performance industrial relay module engineered for precision and durability in generator management systems. Designed for seamless integration into complex industrial automation setups, this module delivers advanced protection, monitoring, and control capabilities for reliable operation in critical environments.

    This module is part of the GE Multilin SR489 series, known for its robust design and advanced control features. It supports low voltage control power supplies (24-60 VDC / 20-48 VAC), ensuring compatibility with a wide range of industrial systems. Its 4-20 mA analog output enables precise signal transmission, making it ideal for process control and monitoring applications.

    The SR489-P5-LO-A20-E is equipped with six Form-C relay outputs and four isolated analog inputs and outputs, allowing for flexible configuration to meet specific application needs. It also features 12 programmable RTD inputs for accurate temperature monitoring, essential for maintaining optimal operating conditions in generators and motors.

    With dual RS485 communication ports and an RS232 interface, this module supports Modbus RTU and DNP 3.0 protocols for seamless integration with SCADA systems and PLC networks. The intuitive front panel display and navigation controls allow for easy setup and diagnostics without the need for external software, reducing downtime and maintenance costs.

    Built to withstand industrial environments, the SR489-P5-LO-A20-E offers protection against electrical interference and harsh conditions. Whether used in power generation plants, manufacturing facilities, or energy management systems, this module ensures stable, efficient, and secure operation, making it an essential component for modern automation infrastructures.