Switchgear engineering firm NOJA Power has introduced the world’s first Solid Dielectric insulated Substation Circuit Breaker, dubbed the NOJA Power EcoBreaker.

Built on a scaled-up architecture from their install base of almost 100,000 outdoor medium voltage reclosers, the EcoBreaker offers utility engineers an alternative to polluting SF6 and bulk oil circuit breakers.

The NOJA Power EcoBreaker is rated up to 40.5kV, with 2,500A continuous current and 31.5kA interruption capacity. With reliability as the top priority, the EcoBreaker contains two entirely independent electrical trip coils per phase. The breaker can be triggered from separate sources, offering full parallel redundancy for critical power applications.

Current Transformer provisions are available on all six bushings of the breaker, providing design flexibility. These CTs can be fitted at the factory, or installed on-site.

Suitable for both green and brownfield installations, the NOJA Power EcoBreaker offers an environmentally friendly alternative to legacy switchgear.

“We are proud to release the world’s first solid dielectric insulated vacuum interrupt substation circuit breaker,” NOJA Power Group managing director Neil O’Sullivan says.

“As the world heads towards net carbon zero by 2050 the use of SF6 gas in substation circuit breakers will be eliminated and this is a safe field-proven architecture that will provide a reliable alternative.”

The EcoBreaker order book is scheduled to open in Q4 of 2023, as the company finalises industrialisation of the product.