Scegli la tua regione e lingua



REQ650 - Breaker protection

Longer life and cost efficiency for your installations

REQ650 provides you with ideal backup protection. The breaker failure protection allows for high-speed back-up tripping of surrounding breakers, and re-tripping of the own breaker. This function is essential in substations that require local back-up protection. Breaker protection REQ650 is also the perfect choice for refurbishment projects where old protection relays need to be replaced.

REQ650 – ease of use from ready-to-use solutions

REQ650 offers an optimum ‘off-the-shelf’, ready-made application solution for the protection and control of circuit breaker-connected objects. The type-tested variant is delivered equipped and configured with complete protection functionality, and with default parameters for easy handling of products – from ordering, engineering, and commissioning to reliable operation.

The 650 series IEDs (Intelligent Electronic Device) have a number of useful features, such as a significantly reduced number of parameter settings and extended IED HMI functionality, including 15 dynamic three-color indication LEDs per page, on up to three pages, and configurable push-button shortcuts for different actions.

In the 650 series IEDs, the most basic parameters are set before delivery from the factory. You only need to set the parameters specific to your application. This allows you to quickly take your IEDs into operation. The application manual includes setting examples to support your protection engineers.

Relion – Complete confidence

Breaker protection REQ650 IEDs belong to the Relion protection and control product family. The Relion product family offers a wide range of products for the protection, control, measurement, and supervision of power systems. To ensure interoperable and future-proof solutions, Relion products have been designed to implement the core values of the IEC 61850 standard. With Hitachi Energy's leading-edge technology, global application knowledge, and experienced support network, you can be completely confident that your system performs reliably – in any situation.

power plant engineer for substation

Contact us

Submit your enquiry and we will contact you