ZW20 Ratings 50 kA 12kv Outdoor evolis electrical Vacuum abb vcb Circuit Breakers

ZW20 Ratings 50 kA 12kv Outdoor evolis electrical Vacuum abb vcb Circuit Breakers

Technical?Parameter

Summary

ZW20 series circuit breaker is a new product which is inventively produced by

As a kind of maintenance-free outdoor vacuum switch,

it has the features of three-phase non-segregated longitudinal magnetic field vacuum quenching of arc,?

SF6 as the insulation and the insulation of silicone rubber/solid epoxy resin.

ZW20 series circuit breaker use three-phase non-segregated structure and has the features of stable

and reliable breaking performance,? no combustion and explosion danger,? maintenance-free,

light weight (two-thirds of similar products ),? high cycle life (mechanical operating life is 10000 times) and so on.

New designed spring operating mechanism is exposed in SF6 to effectively avoid traditional spring operation

mechanism’s

design defects,? such as stagnation and rustiness,? making a significant improvement in reliability.

Scope of Application

ZW20 series circuit breaker is mainly used to break and close load current,? overload current and short-circuit current in the electric power system. It is used to protect and control the power distribution system in transformer

substation,? industrial and mining enterprises,? and it is especially suitable for the transformation of the power

network in rural and city. This circuit breaker can be used with FTU/dividing switch controller,? so as to automatically detect,

isolate and alarm the faults in main line’s