Autometers alliance ltd, an iso 9001 certified company is engaged in designing, manufacturing, supplying, installing & servicing various measuring, switchgear and power conversion equipments for railways and uninterruptible power supply [ups] for industrial applications. The vacuum circuit breaker is a power switch gear for the transportation sector used mainly in rail road applications. Vacuum circuit breaker [vcba type] is built in accordance with iec 60077. The following are its salient features:
1. single pole ac circuit breaker
2. equipped with vacuum interrupter
3. pneumatic closing and holding with opening through spring induced force
4. earthing switch can be engaged directly on vcba
5. constructed for roof mounting
6. requires less space for installation
7. requires minimum maintenance
8. provides protection against fault currents
9. isolates the traction vehicle through earthed section from the overhead catenary wire
The vcba type circuit breaker is used as a line circuit breaker to close and open the power circuit of the vehicle from the overhead catenary & to interrupt the power circuit current under overload, short circuit or any other defined conditions.
