ABB to develop 1,200 kilovolt ultra high-voltage circuit breaker

17 Apr 2012 Evaluate

ABB, the leading power and automation technology group, will develop, design and manufacture a 1,200 kilovolt (kV) circuit breaker, the highest AC voltage level in the world. The innovative circuit breaker will be deployed at a national test station being constructed by Power Grid Corporation of India (PGCIL), India’s central transmission utility, at Bina in the central Indian state of Madhya Pradesh.

The innovative circuit breaker will being jointly developed by ABB engineers in Switzerland and India, with the support of PGCIL, and will be manufactured at ABB’s production facility in Vadodara, India.

ABB’s 1,200 kV circuit breaker is safely housed along with the disconnector in a tank filled with insulating gas. This unique design can result in a space saving of up to 60 percent compared with conventional designs.

Besides, the configuration also protects critical components from environmental exposure and brings down the center-of-gravity, thereby increasing its ability to withstand seismic events. Other design features include modular ring type current transformers, partial discharge sensors and composite bushings.

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