提高10 kV环保型环网柜接地开关短路关合能力的措施

Measures to Improve the Short-circuit Making Ability of the Earthing Switch of the 10 kV Environmentally Friendly Ring Main Unit

针对10 kV环保型环网柜(以下简称“环保柜”)接地开关短路关合能力不足的问题,结合环保柜设计和试验情况,从降低预击穿电弧影响和提高触头耐烧损等方面,详细介绍了提高环保柜接地关合能力的措施。这些措施易于实现,效果明显,对10 kV环保型环网柜设计具有重要的参考价值和指导意义。

Aiming at the problem of insufficient short-circuit making capacity of earthing switch of 10 kV environmentally friendly Ring Main Unit(hereinafter referred to as environmentally friendly Unit),combined with the design and test of environmentally friendly Unit,the measures to improve the short-circuit making capacity of environmentally friendly Unit are introduced in detail from the aspects of reducing the influence of pre-strike arc and improving the burn resistance of contacts.These measures are easy to achieve and have obvious effects,which have important reference value and guiding significance for the design of 10 kV environmentally friendly Ring Main Unit.