RET670

The RET670 IEDs offer both customized and pre-configured protection solutions for all types of transformer and shunt reactor applications. The customized RET670 allows you to tailor functionality entirely to your specific needs, while the pre-configured RET670 variants simplify handling by including essential functionalities pre-configured. If necessary, additional functions can be integrated into the pre-configured RET670 IEDs to meet the unique requirements of your transformer or shunt reactor.

With an exceptionally fast differential protection function featuring automatic CT ratio matching and vector group compensation, the RET670 is ideal for the most demanding applications. Additionally, a single RET670 IED can be expanded to include two differential protection functions, accommodating the protection of advanced system configurations. Designed to operate accurately over a wide frequency range, this transformer protection IED handles power system frequency variations during disturbances, as well as generator start-up and shut-down. It also imposes minimal requirements on the main CTs, eliminating the need for interposing CTs.

The RET670 is equipped with multiple functions for local and remote apparatus control on all sides of the transformer. Secure bay and station-wide interlocking prevent dangerous or damaging switchgear operations, ensuring personnel safety.

Relion – Complete Confidence

The RET670/RET650 IEDs are part of the Relion protection and control product family. Relion offers the most comprehensive range of products for the protection, control, measurement, and supervision of power systems. Designed with the core values of the IEC 61850 standard, Relion products ensure interoperable and future-proof solutions. With Hitachi Energy’s cutting-edge technology, extensive application knowledge, and experienced support network, you can be confident that your system will perform reliably in any situation.