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HECPS-3S, Avče GCB (Sideview)

Generator Circuit-breakers (GCB)

Generator circuit-breakers protect important assets in power plants by clearing potential harmful short-circuit faults in tens of milliseconds, preventing severe damages and enhancing power plant availability. 

Increase operational availability, safety and flexibility in all types of power plants around the globe

Hitachi Energy is the leader in design and manufacturing of GCBs since 1954 with more than 8,000 deliveries in over 100 countries. We offer the widest and most modern portfolio of GCBs in SF6 technology across a range of short circuit ratings from 63 kA to 300 kA and continuous currents from 6,300 A to over 50,000 A to meet the demand of all types of power plants around the globe as well as synchronous compensator applications.

GCBs increase protection of key equipment like generators and power transformers, ensure power plant availability, simplify operational procedures and reduce costs. Our GCBs are manufactured in Switzerland. We offer unique features like lean manufacturing for the shortest delivery time and the ability to participate in Factory Acceptance Test (FAT) personally or remotely using Remote Factory Acceptance Test (RFAT) from any place with access to internet connection.

Our Offering

HECPS-3S, Avče GCB (Topview)

Enhancing power plant availability

Generator circuit-breakers Portfolio

Enhancing power plants' availability and reliability with Generator Circuit breakers

Take a deep dive into the advantages of using a Generator Circuit-breaker with real examples of benefits in power plants.


Digital GCB: One step ahead towards digitalization of the grid

Discover how to enable simplified and efficient lifetime management and how to optimize the use of GCBs in power plants.

Join our webinar to discover how to enable your digital future!


Selecting the right Generator Circuit-breaker for your power plant

Stringent technical requirements are imposed on the Generator Circuit-breakers. All those technical parameters need to be evaluated and respected for the right selection of GCBs.

Join our webinar to discover how to perform the proper selection of the GCB for your power plants!

Generator circuit-breaker (GCB) solutions to support grid reliability

The webinar addresses the challenges associated with the energy transition, introduce our GCB solution, and provide guidelines for the proper selection of GCB in these types of applications.

Generator Circuit-breakers News

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