基于损耗因数的干式串联电抗器匝间绝缘状态监测技术
谢同平1，于洋1，刘兴华1，鲁尧2，咸日常2
（1 国网山东省电力公司淄博供电公司，山东 淄博 255000；
2 山东理工大学 电气与电子工程学院，山东 淄博 255049）
摘 要：无功补偿成套装置中的串联电抗器采用固体绝缘结构，针对其运行中匝间短路故障频发且检测手段不足问题，提出了基于损耗因数的串联电抗器匝间绝缘监测技术。分析了串联电抗器发生匝间短路故障的原因，建立电抗器匝间短路等效电路，针对其故障特征研究了电抗器匝间短路监测的技术方案，并通过有限元仿真软件验证了所提方案的可行性和有效性。
关键词：串联电抗器；匝间绝缘；损耗因数；监测技术
中图分类号：TM47 文献标识码：A 文章编号：1007-3175(2021)01-0047-04
Inter-Turn Insulation State Monitoring Technology of Dry-Type
Series Reactor Based on Loss Factor
XIE Tong-ping1, YU Yang1, LIU Xing-hua1, LU Yao2, XIAN Ri-chang2
（1 Zibo Power Supply Company of State Grid Shandong Electric Power Corporation, Zibo 255000, China;
2 School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255049, China）
Abstract: The series reactor in the complete set of reactive power compensation device adopts a solid insulation structure. Aiming at theproblems of frequent occurrence of inter-turn short-circuit faults of series reactors in reactive power compensation equipment and insufficientdetection methods, this paper proposed a monitoring technique for inter-turn insulation of series reactors based on loss factor. And the causeof the inter-turn short-circuit fault of the series reactor was briefly analyzed; then, the equivalent circuit of the inter-turn short circuit of thereactor was established, and the technical scheme of the inter-turn short circuit monitoring of the reactor was studied according to its faultcharacteristics; Finally, the feasibility and effectiveness of the proposed scheme are verified by finite element simulation software.
Key words: series reactor; inter-turn insulation; loss factor; monitoring technology
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