SR489-P5-HI-A20-E Generator management relay

The generator management relay is a key equipment manufactured by GE for power system protection and control. Its core goal is to ensure that the generator can operate safely and stably under various operating conditions, avoiding damage or shutdown caused by faults or abnormal operations.

This relay has multifunctionality, not only monitoring the operation status of the generator, but also protecting the generator in real-time from various potential threats, such as overcurrent, overvoltage, power loss and other faults. In addition, it also has advanced technical parameters, such as 5 A-phase computed tomography secondary coils, high control power supply of 90-300 V DC and 70265 V AC, and frequency of 48-62 Hz. In addition, the relay also has an analog output function, which can output a current signal of 4 to 20mA, facilitating data exchange and communication with other devices.

This relay also features an enhanced display screen, where E represents a larger LCD display than the basic display screen, allowing users to more intuitively view the relay's operating status and related information. In terms of protection, this relay can monitor various operating parameters of the generator, such as voltage, current, frequency, and power. When these parameters exceed the safety range, the relay will trigger corresponding protective actions, such as disconnecting the power or initiating an alarm, to prevent damage to the generator.

In addition to protection functions, the SR489-P5-HI-A20-E generator management relay also has control functions, which can control the start, stop, and switch of the generator according to preset logic or external signals, ensuring the stable operation of the power system. Meanwhile, it also has programmability, allowing users to set the parameters and logic of relays according to specific application requirements.

In addition, this relay typically supports multiple communication protocols and interfaces, such as Modbus, Profibus, etc., facilitating data exchange and remote monitoring with other devices or systems. In practical applications, it can improve the safety and stability of the power system, reduce the occurrence of faults and accidents, and provide more reliable power protection for industrial production and people's daily life.

When using this relay, users need to be aware that it is unsafe to contact the relay contacts when the relay is energized. Therefore, when performing maintenance or repairs, it is essential to ensure that the equipment is in a power-off state.

Overall, the SR489-P5-HI-A20-E generator management relay is a comprehensive and high-performance relay product suitable for various complex power system environments, providing comprehensive protection and control functions to ensure the stable operation of the generator and the safety of the power system.