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VS1 Indoor high voltage vacuum circuit breaker
Release time:2015-06-05 22:15 Read:Time

●Main purpose
VS1-12 high voltage vacuum circuit breaker is the indoor high voltage switch equipment, which applicable to 12KV rated voltage, frequency 50 HZ in the three-phase power system to protect and control the operator. As a power grid equipment industrial , mining enterprises of power equipment protection and control unit. Being well applied to frequent operation of rated current or the place of many times the breaking short circuit current .

It uses the design of the operation mechanism and circuit breaker ontology unibody, It can be a fixed installation unit, It is equipped with special feed mechanism and form a handcart unit too.

Operating environment
a、Ambient air temperature: -15℃ to +40℃
b、Altitude: ≤1000m    Increasing the rated insulation level according to the higher altitude
c、Amplitude : seismic intensity is not more than 8 degrees
d、Average daily levels of relative air humidity isn’t more than95% , monthly average levels of it isn’t more than90%
e、No fire, no explosive , No serious pollution, No chemical corrosion and no violent vibration .

●The data as follow:
No. Name Name Data
1 Rated voltage KV 12
2 Rated frequency Hz 50
3 Rating insulation level Power frequency withstand voltage(1min) KA On the ground / White 42/48
to earth/ between phases
Lightning impulse withstand voltage (peak) On the ground / White 75/85
to earth/ between phases
4 Rated short circuit breaking current KA 20 25 31.5 40
5 Rated current A 630 630 1250 1600 1250 1600
1250 1250 2000 2500 2000 2500
6 Rated tolerance current (Effective value) KA 20 25 31.5 40
7 Rated peak withstand current (peak) 50 63 80 100
8 Rated peak with stand current(peak)   50 63 80 100
9 Duration of rated short circuit current S 4
10 Mechanical life 20000
11 Secondary back power frequency withstand voltage (1min) V 2000
12 额定操作顺序Rated operating sequence   Open-t-close&open-t1-close&open
Remarks:20KA, 25KA, 31.5KA, t=0.3s t1=180s; 40kA t=180s t1=180s

●  Outline Mounting Dimension

Last one:VS1-24Indoor high voltage vacuum circuit breaker
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