Abb Vd4 Circuit Breaker

The vd4 medium voltage circuit breakers use vacuum interrupters embedded in resin poles.

Abb vd4 circuit breaker.

Vd4 af circuit breaker for safe and relentless steel furnace operation and protection up to 38kv 2500a 31 5ka english pdf catalogue. 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. Auxiliary switch for fault annunciation blocking magnet auxiliary switches s2 s6 3 2 3 mounting of the vd4 on trucks from other manufacturers vd4 circuit breakers which are not installed on abb calor emag withdrawable parts must be fitted with one or two additional auxiliary switches which are dependent on the mechanical lock and release device. 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.

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. 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. 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. One breaker full control zero transient noise free power quality by safe and reliable switching and protection of capacitor banks vd4 cs is the unique solution based on new vacuum interrupter technology and an innovative actuation systems up to 38kv 1250a 31 5ka and with superior noise free performances to support your business. The vacuum interrupter houses the contacts and makes up the interrupting chamber.