This circuitbreaker which is independently developed by Ziguang,it is a new generation of vacuum circuit-breaker.It is based on vacuum interrupter and adopts stand pole style besides with composite insulation.As a consequence,oil leak and gas leak can be solved and the breaker can be used to replace the SF6 circuit-breaker.The product is widely used in occasions where frequent operations are needed and industries like electrical power,metallurgy,machinery and chemical.

Overall dimensions

Technical parameters

No. Item Unit Value
1 Rated voltage kV 126
2 Rated current A 2000/3150
3 Rated frequency Hz 50
4 1 min power frequency withstand voltage:(wet) (dry)phase to phase, to ground/gap kV 195/230
5 Lightning impulse withstand voltage (peak) phase to phase, to ground/gap kV 550
6 Rated short-circuit breaking current kA 40
7 Rated short-circuit breaking times Times 20
8 Rated peak withstand voltage kA 100
9 Rated short-time withstand current/ duration kA/S 40/4
10 Rated short-circuit making current (peak) kA 100
11 Resistance of main circuit μΩ ≤100
12 Mechanical life Times 10000
13 Ambient temperature -45~+50

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