The circuit breaker will be installed at a national test station being constructed by India’s central transmission utility, Power Grid Corporation of India (PGCIL).

The circuit breaker is set up along with the disconnector in a tank filled with insulating gas and can result in a space saving of up to 60% compared with conventional designs, said ABB.

The configuration also protects critical components from environmental exposure and brings down the centre-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.

The company said the 1,200kV Bina station will carry out field tests as part of the project’s initiative.

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