40.5KV VCB Vacuum Circuit Breaker indoor type from JUCRO Electric
HVD85-40.5（ZN85-40.5）is suitable for three-phase AC power system of 50Hz and 40.5kV, used to make and break the load current, overload current and fault current in industrial and mining enterprises, power plants and transformer substations, meanwhile, it is suitable for the occasion where the frequent operation is required.
2. Service conditions
2.1The ambient air temperature should be -15℃~40℃, the daily average temperature should not exceed 35℃.
2.2 Daily mean relative humidity should not exceed 95%, and the daily mean vapor pressure should not exceed 2.2kPa; the monthly mean relative humidity should not be higher than 90%, and the monthly mean vapor pressure should not exceed 1.8kPa.
2.3 Altitude: Not exceed 1,000m.
2.4 The ambient air should be free from the dust, smoke, corrosive and flammable gas, steam, salt fog, et…
Main specifications and technical parameters
Lighting impulse withstand voltage
Rated short-time withstand current
Rated peak value withstand current
Rated short-circuit duration
Rated short-circuit breaking current
Rated short-circuit making current
Rated operation sequence
Rated short-circuit current breaking times
Single capacitor bank breaking current
Back-to-Back capacitor bank breaking current
Rated control voltage
Overall and installation dimensions
1. Opening spring
3.Regulating lever of intermediate phase
5. Driving board 2
7.Driving board 3
8.Driving board 4
9.Driving board 1
10. Regulating lever of side phase
11.Rod end bearing