The GWPR300-TI Transformer Integrated Protection Relay is designed primarily for transformers of 132kV, 66kV, 33kV and 11kV voltage classes with a rated capacity of 10,000 kVA or less.
It incorporates all functions of one GWPR300-TD Transformer Differential Protection Relay plus all functions of one GWPR300-THB Transformer Backup Protection Relay. Integrating main and backup protection into a single device, it delivers the full capabilities of two separate relays in one unit.
- 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.
