The GWPR300-M Motor Protection Relay is primarily used for the protection and control of large asynchronous motors with rated voltage classes of 33kV, 11kV, 6.6kV, and below. It is widely deployed in the power, petrochemical, metallurgical, coal, water conservancy, and mining industries.
- Interfaces: 2 × Ethernet, 2 × RS485 (the second RS485 port is shared with the time sync port, selectable via configuration).
- Protocols: IEC 103, IEC 104, Modbus RTU; IEC 61850 (optional).
- Time Synchronization: SNTP, IRIG-B, and message-based time sync.
- Printing: Supports serial dot-matrix printers for output of setting parameters, event logs, and fault waveform records.
