GE SR489-P5-LO-A20-E: Low Voltage 4-20 mA Analog Output Relay for Generator Protection

In stock

The GE SR489-P5-LO-A20-E is a low voltage 4-20 mA analog output relay designed for generator protection, ideal for both induction and synchronous generators. It ensures efficient management and protection of generators with precise current input handling.

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 an advanced relay specifically engineered for the management and protection of generators. This device is equipped with a robust design that ensures reliable performance under various conditions. With five ampere CT secondaries, it can accurately measure and monitor phase currents. Additionally, the unit supports operation at 25, 50, or 60 Hz, making it versatile for different applications. The 40-character display provides clear and concise information on value messages, diagnostics, and setpoints. The front panel includes a numeric keypad and status indicators for easy operation. Designed with a fully drawout case (automatic CT shorts), it enhances safety and convenience during maintenance. The relay also features configurable tachometer inputs that can be assigned to digital inputs 4 to 7, offering flexibility in configuration. Overall, the GE SR489-P5-LO-A20-E is an indispensable tool for professionals seeking high-quality generator management and protection solutions.

GE SR489-P5-LO-A20-E