About ABB RET650 BIG LONG PROTECTION RELAY (ONLY DISPLAY)

ABB RET650 BIG LONG PROTECTION RELAY (ONLY DISPLAY)

RET650 offers the best possible coverage for power transformer winding turn-to-turn faults and the unique negative sequence internal/external fault discriminator is faster than a conventional stabilized transformer differential protection function.

Advanced Transformer Protection

Engineered as part of the ABB RET650 series, this protection relay focuses on transformer differential, overcurrent, restricted earth fault, and breaker failure protection. It delivers secure, fast, and precise operational reliability with an operate time of less than 20 ms, making it ideal for vital power system applications.


Modern Connectivity and Easy Upgrades

Supporting a range of communication protocols-IEC 61850, Modbus, DNP3, and IEC 60870-5-103-the RET650 ensures smooth integration into SCADA and substation automation systems. Firmware upgrades are hassle-free through the front interface, minimizing system downtime during updates.


Comprehensive Monitoring and Recording

Equipped with integrated event recording (up to 1000 events) and a disturbance recorder (up to 30 seconds), operators have access to crucial post-fault analysis. Its comprehensive self-supervision and diagnostics further enhance operational security, identifying and communicating issues promptly.