CAJ | 학술논문

在导致变压器损坏或者故障的外部因素中，变压器相间后备保护方面的问题是最主要的因素之一，其对低压侧相间故障的灵敏程度不够，而且动作的时间限制较长是故障的主要原因。文中介绍了变压器的后备保护，分析了变压器相间后备保护中存在的问题，并且提出了针对性的改善措施。
재도치변압기손배혹자고장적외부인소중，변압기상간후비보호방면적문제시최주요적인소지일，기대저압측상간고장적령민정도불구，이차동작적시간한제교장시고장적주요원인。문중개소료변압기적후비보호，분석료변압기상간후비보호중존재적문제，병차제출료침대성적개선조시。
Due to external factors in the transformer damage or failure,one of the main reasons is in phase backup pro-tection for transformer,mainly due to the interphase fault sensitive is not enough on the low voltage side and limitation of its action time is longer.This paper introduced the backup protection of transformer,analyzed the existing problems of transformer phase backup protection problem,and put forward some measures to solve and improve.