SR489-P1-HI-A20-E-H Generator Management Relay

SR489-P1-HI-A20-E-H Generator Management Relay

Product Details Introduction

The SR489-P1-HI-A20-E-H generator management relay is a multi line generator management relay system manufactured by GE Multilin and designed for the 489 series. It has a series of unique characteristics and functions, making it a key equipment for generator management and protection.

This relay has a 5 A phase CT secondary coil and controls a wide range of power, including 90 to 300 volts DC and 70 to 265 volts AC, with frequencies ranging from 48 to 62 hertz. Its analog output is 4 to 20 milliamperes, providing precise electrical signal output to meet various application needs.

The SR489-P1-HI-A20-E-H relay has an enhanced display screen, and the LCD is larger than the basic display screen, which helps operators to view relevant information more conveniently.

This relay provides multiple protection functions, including trip and alarm protection. The trip protection function includes two types of neutral line overvoltage and undervoltage, respectively for standard voltage type and neutral voltage type. This protection function helps to ensure that the generator can operate safely and reliably under abnormal voltage conditions.

In terms of input types, this relay has three types, namely analog, voltage, and digital inputs, which are crucial for the operation of the equipment. Among them, there are nine digital inputs that can only be used together with dry contacts. In addition, there is a transistor output labeled NPN that can be transmitted as a tachometer or counter to a specified digital input.

In addition, the SR489-P1-HI-A20-E-H relay can also function properly in applications where temperature drops to negative values, but if the temperature is below 20 degrees Celsius at any time, the LCD contrast on the relay may be affected.

Overall, the SR489-P1-HI-A20-E-H generator management relay is a powerful and stable device suitable for various situations that require precise generator management and protection. It ensures safe and efficient operation of the generator under various working conditions by providing comprehensive protection functions, a wide range of input types, and precise analog outputs.

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