Abb Vd4 Circuit Breaker

Iec indoor vacuum circuit breaker vd4 af safe and relentless steel furnace operation and protection vd4 af is the unique solution based on vacuum technology and an innovative actuation systems to provide a high quality reliable and efficient solution for arc furnace application.

Abb vd4 circuit breaker.

1 1 general vacuum circuit breakers of type vd4 are intended for indoor installation in air insulated switchgear. Fully interchangeable both for overall dimensions and electrical diagrams with abb vd4 medium voltage gas circuit breaker only one common actuator for up to 40 5 kv with a wide range of accessories safety locks and interlocks. Vd4 af circuit breaker for safe and relentless steel furnace operation and protection up to 38kv 2500a 31 5ka english pdf catalogue. The vd4 medium voltage circuit breakers use vacuum interrupters embedded in resin poles.

The vd4 are a synthesis of the renowned technology in designing and constructing vacuum interrupters embedded in resin poles and of excellency in design engineering and production of medium voltage circuit breakers. Fully interchangeable both for overall dimension and electrical diagram with abb vd4 medium voltage gas circuit breaker only one common plug and play actuator el type from 12 kv to 36 kv with a wide range of accessories safety locks and interlocks and with same family feeling of abb low voltage series emax. Embedding the interrupter in resin makes the circuit breaker poles particularly sturdy and protects the interrupter against shocks accumulation of dust and humidity. The circuit breakers of column design with a rated voltage of 36 kv and 40 5 kv were developed both for fixed installation and for installation on a withdrawable assembly.

The circuit breakers for fixed installation also have trucks. Across every market abb s circuit breakers occupy a leading position thanks to their proven reputation for reliability performance and long life. Vd4 r circuit breakers with lateral operating mechanisms can be used in all medium voltage secondary distribution systems and mv lv transformer substations in factories industrial workshops and in the services sector.