HB1 Generator Switchgear up to 72 kA

Why HB1?

The 3-phase enclosed switchgear is compact, comprehensive and benefits from 30 years experience in vacuum technology. It incorporates the HB1-C generator circuit-breaker module as its central component.

The HB1 is an advanced generator switchgear designed to protect generators and power transformers. It increases power plant reliability, simplifies operation, and lower costs. It handles currents up to 6,700 A and has a short-circuit rating of up to 72 kA.

This system features an air-insulated, metal-enclosed design, integrating a vacuum generator circuit-breaker, main-disconnector, earthing switch, current and voltage transformers, surge arresters, and capacitors.

Key benefits

Enjoy high reliability

The spring-operated mechanism was stated to be the most reliable way to operate a GCB, as per the final report number A3-00 from the CIGRE 2012 General Report SC A3.

Reduce long-term costs

Cut up to 75% of your OPEX costs thanks to vacuum technology. No maintenance needed for up to 10,000 operating cycles at rated continuous current.

Prioritize safety

All components and functions are type-tested and routine-tested. Equipped with a sealed-for-life vacuum interrupter.

Featured capabilities

Connection options

Built-in flexibility allows for various types of connections, including Insulated Phase Busduct (IPB), Non-Segregated Phase Busduct (NSPB), Segregated Phase Busduct (SPB) and cables.

Capacity

The HB1 is rated for applications with a rated current of up to 5,500 A, a breaking capacity of up to 72 kA, and IAC A FLR 63 kA/0.5 s.

Versatility

The air-insulated, metal-enclosed design allows for indoor or outdoor use without performance issues.

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Generator Circuit-Breaker Switchgear Type HB1