Siemens manufactures EHV SF6 Outdoor Breakers at their modern factory in Aurangabad (Maharashtra). The design of these Breakers is exactly same as the design of the Circuit Breakers currently being manufactured at Siemens AG’s factory in Germany for the global market. We also confirm that our manufacturing processes and setup is in line with Siemens AG’s recommendations.
Siemens has one of the largest research and development facilities in the world. Their expertise and technical know-how is now available to Indian customers through the Aurangabad works of Siemens Ltd.
The Breaker types 3AP are available up to 800 kV and they have an extremely simple and totally maintenance free spring energy stored mechanism.
This Circuit Breaker utilizes interrupters based on self-compression principle, requiring extremely small drive energy. Siemens patented the interrupters based on self-compression principle in 1970’s. The benefit of these interrupters gets translated into a reliable and simple drive mechanism and substantially reduced stress on links and other mechanical parts of the Breaker.
These Breakers therefore are many times more reliable as the forces developed during operation (Closing / Tripping) are far less adding to the reliability and simplicity.
The advantages of 3AP SF6 breaker can be summarized as follows: