1. SF6 insulated Vacuum circuit breaker panel 2. KEMA type test, IEC standards 3. Free extensible, free maintenance

SF6 insulated vacuum circuit breaker panel

With the laser cutting and puching machines imported from TRUMPF(Germany), the accuracy of re-location can be 0.02mm; the cutting deviation can be less than 0.05mm, which ensures that before welding the gaps between plates of gas tank are smaller than 0.1mmThe three-dimension and five-axis laser welding system, also from TRUMPF, with welding laser beam of 0.1mm and under protection of Helium gas, welds the stainless steel plates, the welding quality equals to bended steel plates, which ensure the gas tightness and uniformity of all gas tanks.The fully automatic and integral helium leak detection system, made by SEILER Vakuumtechnik GmbH, through detecting of Helium leakage, brings gas leakage rate per year down to less than 0.02%, ensuring the life span of gas tank of over 30 years.

Main Technical data

Description	Unit
Rated Voltage	kV	12	24
power frequency withstand voltage(1min)phase to phase	kV	42	50
power frequency withstand voltage(1min)between open contacts	kV	48	64
Rated frequecy	Hz	50,60	50,60
Rated current	A	630	630
Rated short circuit breaking current	kA	20	20
Mechnical lifetime	Ops.	10000	10000
Protection degree		IP4X	IP4X