CAJ | 학술논문

介绍了110kV系统接地运行和全绝缘变压器的使用情况,分析了110kV变压器中性点的过电压水平,通过研究相关规范资料,结合以往设计经验,对110 kV全绝缘变压器中性点的过电压保护提出解决办法,其中性点采用二次继电保护和避雷器作为过电压保护措施,避雷器的参数选择,应根据其过电压水平确定.
개소료110kV계통접지운행화전절연변압기적사용정황,분석료110kV변압기중성점적과전압수평,통과연구상관규범자료,결합이왕설계경험,대110 kV전절연변압기중성점적과전압보호제출해결판법,기중성점채용이차계전보호화피뢰기작위과전압보호조시,피뢰기적삼수선택,응근거기과전압수평학정.
Introduction was made to the 110kV system grounding operation and the service condition of all-insulating transformers. This paper analyzed the overvoltage level of 110kV transformer neutral point. By researching the relevant standard information and combining formerly design experience, this paper proposed the solution to solve the problem of 110kV transformer neutral point overvoltage protection. The neutral point took the secondary relaying protection and arrester as overvoltage protection measures and the arrester parameters selection should be determined by the overvoltage level.