REX521GHHPSH51G feeder protection relay

Product manual:

Main features:
Power supply protection function:
Provide comprehensive overcurrent protection, ground fault protection, reverse power protection, and negative sequence current protection.
When a fault occurs, it can quickly detect and cut off the faulty part to prevent the fault from spreading.
Multiple protection mechanisms:
Overload protection: prevent equipment damage caused by overloading of the circuit.
Short circuit protection: In the event of a short circuit, promptly cut off the circuit to protect the circuit and equipment.
Ground fault protection: Quickly respond to ground faults to ensure system safety.
Intelligent functions:
Provide automatic reclosing function to automatically restore power supply after the fault is eliminated.
Remote monitoring and fault recording facilitate real-time monitoring and fault analysis by operators.
Communication and Integration:
Supports multiple standard communication protocols such as IEC 61850 and Modbus, making it easy to integrate with power automation systems.
Realize remote control and data transmission to enhance the intelligence level of the system.
Flexible configuration: According to the specific needs of the power supply line, various protection parameters can be flexibly configured to meet different protection requirements.
Application scenarios:
Substation feeder line protection: provides multiple protections for the feeder lines of the substation to ensure the stable operation of the power system.
Industrial power system: used for the protection of critical power equipment and distribution systems in industrial facilities.
Distribution network: In the distribution network, precise protection functions are provided to prevent fault expansion and reduce power outage time.

Product details picture:

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