Permanent magnet indoor high voltage vacuum circuit breaker

VSm-12

1.General  Description

VSm-12 series of indoor high voltage vacuum circuit breaker is adopted front and rare construction for their permanent

magnetics and vacuum inlerrupters.The main conducting circuit is with floor-standing type. the upper and lower outlet

terminal and vacuum interrupters are installed in one insulation house.The insulation house is casted with epoxy resin

material by APG technology.which can protect the surface of the vacuum interrupters against dust accumulation and

impact.lt also has good insulation property under humid, hot and pollution ambient condition.

The vacuum circuit breaker with permanent mechanism is air-insulated,used for indoor installation for different kind

of power load,it is suitable for electrical net construction and reconstruction project in municipal net,rural net,mineral

and railway system. especially used in that fields which require frequently switching and have some requirement

for short circuit operation cycles.This product was introduced by some international advance technique and

processing technology with characteristics of intelligence. high reliability.long endurance and free maintenance etc.

2.Applying  conditions:

Ambient temperature;-10℃----+40℃

Relative humidity:daily average ≤95%,monthly average ≤90%

Seismic intensity ：≤8

Saturated vapor pressure：daily average ≤2.2kPa，monthly average≤1.8kPa；

Altitude：≤1000m；（Not including special requirement）

Service environment：should be avoided fire, explosion risk, serious pollution, chemical corrosion and violent vibration

3.Technical specification

4. Overall drawing

5. Secondary connection diagram