CAJ | 학술논문

针对110kV主变中性点局部不接地的系统，在分析避雷器和放电间隙作用基础上，对无间隙氧化锌避雷器并联放电间隙+间隙电流、过电压保护方案的配置原则，提出了新的想法。本文思想对于非有效接地情况下的220kV分级绝缘变压器具有一定参考价值。
침대110kV주변중성점국부불접지적계통，재분석피뢰기화방전간극작용기출상，대무간극양화자피뢰기병련방전간극+간극전류、과전압보호방안적배치원칙，제출료신적상법。본문사상대우비유효접지정황하적220kV분급절연변압기구유일정삼고개치。
In this paper, it focuses on the protection of non-earthing system at the neutral point of 110kV main transformer, and puts forward a new method for the protection scheme of parallel discharge gap of voidless flower of zinc lightning arrester through the function analysis of lightning arrester and discharge gap. The principle philosophy can also apply to the protection of 220kV grade insulation main transformer with non-earthing.