HB3-C system without enclosure up to 110 kA
Bolt-on solutions with rated nominal current up to
Unique horizontal and vertical installation capabilities
Common or individual supporting frame design
With optional integrated line and earth disconnecting switches
Save up to 75% of your OPEX by selecting vacuum technology
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July 13. - July 14. 2021
The most versatile solution for your retrofit application and new projectsWith its HB3-Compact Siemens provides an unique generator circuit breaker solution to the most challenging constraints. It offers one of the highest level of customization: The HB3-C can be mounted either vertically or horizontally, its phase-to phase spacing and phase height axis can be adjusted to match perfectly the existing busbar connection points. Optionally, the circuit-breaker can be fitted with integrated line disconnecting switch and earth disconnecting switch on generator side and/or on transformer side.
A compact design that meets all requirements:
- Common or individual supporting frame design
- Vertical or horizontal installation
- Maintenance free vacuum technology with up to 10,000 operating cycles at full nominal rated current
- Features full-spring operating mechanism stated to be the most reliable* way to operate a GCB with lifespan up to 20,000 operation
- Equipped with sealed-for-lifetime** vacuum interrupter
- Simplified footprint without dynamic forces during switching operations that facilitates designing and sizing of the GCB supporting structure
- Effortless on-site erection thanks to forklift-ready design or retractable wheels
- Can be delivered with integrated line disconnecting switch and earth disconnecting switch on generator side and / or transformer side
* Most reliable operating mechanism as per final report number A3-00 from the CIGRE 2012 General Report SC A3.
** R. Renz, D. Gentsch, P. Slade, H. Fink, M. Schlaug, "Vacuum Interrupters – Sealed for Life", 19th Int. Conf. on Electr. Distr. (CIRED), Paper 0156, 21-24 May 2007