HVD1 – 12KV

Vacuum Circuit Breaker

HVD1-12(VS1-12) type indoor AC HV vacuum circuit breaker (hereinafter referred to as circuit breaker) are suitable for 12kV air-insulated indoor switchgears, used as protection and control unit of power equipment of industrial& mining enterprise. Due to the super excellence, it is especially for location where requires the frequent operation of rated working current or multi breaking short circuit current.
The circuit breaker adopts the integrated design of operating mechanism and circuit breaker body, servers as not only fixed installation, but also the handcart unit through equipping with a special propelling mechanism.

1Rated voltageKV12
2Rate voltageHz50
3Rated lightning impulse withstand voltage(1min)KV75
4Rated short-time power frequency withstand voltage (1min)KV42
5Rated short-circuit breaking currentKA202531.540
6Rated currentA630 1000
630 1000
1250 1600
1250 1600
2000 2500
1600 2000
2500 3150
7Rated peak withstand currentKA506380100
8Rated shorted-time withstand currentKA202531.540
9Rated shorted-time making current(peak)KA506380100
10Power frequency withstand voltage of secondary circuit(1min)V2000
11Rated operation sequenceOff-0.3s-On&Off-180s- On& Off
Off -180s- On& Off -180s- On& Off*
12Rated breaking current of capacitor bankA630/400(40kA 800/400)
13Opening time(rated voltage)ms20~50
14Closing time(rated voltage)ms30~70
15Rated short-circuit current breaking timestimes50(40kA 30)
16Mechanical lifetimes30000
17Rated opening/closing voltageVAC110, 220; DC110, 220
18Rated voltage of energy-storage motorVAC110, 220; DC100, 220

3.1 Environment temperature:-15℃~+40℃;
3.2 Environment humidity: Daily average relative humidity:≤95%, monthly average relative humidity:≤90%; Daily average saturated vapor pressure:≤2.2×10-3Mpa,monthly average saturated vapor pressure:≤1.8×10-3Mpa;
3.3 Altitude: Not exceed 1000m;
3.4 Earthquake intensity: Not exceed&degree;
3.5 Service location: No water, flammable or explosive matter, chemical corrosive gas or drastic vibration.