摘要
目前干式空芯电抗器匝间短路故障的检测手段过于复杂，且灵敏度不足，使得保护装置并不能及时准确地针对电抗器故障进行动作，为电网安全运行留下了安全隐患。因此，文章分析了干式空芯电抗器匝间短路故障的发生过程，结合磁场探测法原理，探讨了实现匝间短路故障在线监测的关键技术，为解决电抗器无保护运行的问题提供理论依据。
Abstract
At present, testing methods of the dry hollow reactor’s turn-to-turn short circuit are too complex and lacking in sensitivity. It makes the protective device can not operate timely and accurately when reactors go wrong, which leaving potential safety hazards to the safe operation of the power grids. Therefore, the process of dry hollow reactor’s turn-to-turn short circuit was analyzed. In addition, the key technology to realize on-line monitoring for turn-to-turn short circuit combining magnetic ifeld detection method was discussed in order to provide a theoretical basis for solving the problems that reactors operate without protection.
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