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.

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There is no downtime in the power business

For the first time, we’re offering an in-depth look at how Hitachi Energy’s extensive line of Generator Circuit-breakers (GCBs) are moving the industry forward, and how we can help optimize power plant performance and increase plant availability by up to 0.8%. We invite you to sign up to watch our webinars and enjoy all the available entertaining assets.

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Hitachi Energy's generator circuit-breaker works behind the scene to protect power plants

For over 60 years, our generator circuit-breakers (GCBs) have been protecting all types of power plants around the globe. As the global leader in GCB technology, we are continuously driving innovation to provide solutions to increase power plant availability and reliability.

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Strategic spare parts service solution for GCBs at Purulia Pump Storage Plant

Through the strategic spare parts solution , high-voltage service from Hitachi Energy is ensuring uninterrupted power supply to more than 1.8 million Indian homes from Purulia Pumped Storage power plant in eastern India. Watch how the maintenance of GCBs was carried out in just 3 days instead of the standard 10, enabling cost savings of around USD 300,000 per shutdown.

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There is no downtime in the power business
Hitachi Energy's generator circuit-breaker works behind the scene to protect power plants
Strategic spare parts service solution for GCBs at Purulia Pump Storage Plant

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 nominal 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 offers 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.

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Enhancing power plant availability

Generator circuit-breakers Portfolio

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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.

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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!

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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!

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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.

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