Fuse Switch Combination Panel, SF6 Gas Insulated Switchgear

1. Fuse Switch Combination Panel,Ring Main Unit 2. KEMA type test, IEC standards 3. ISO14000, IS09000 4. Free extensible

Fuse Combination Ring Main Unit Switchgear

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 Technial Data

Description	Unit	12kV	24kV
power frequency withstand voltage(1min)phase to phase	kV	42	50
power frequency withstand voltage(1min)between open contacts	kV	48	64
Impulse withstand voltage(phase to phase/earth)	kV	75	95
Impulse withstand voltage(between open contacts)	kV	85	110
Rated frequency	Hz	50,60	50,60
Rated current	A	≤125A	≤100A
Rated transfer current	A	1800	1400
Mechanical lifetime	Ops	5000	5000
Protection Degree		IP4X	IP4X