高压电容器极间绝缘耐潮湿性能的试验研究  

Test Study on Moisture Resistance Performance Between Poles of High Voltage Capacitor

作　　者：姜胜宝 倪学锋 林浩 罗天鸣 谢光良 张政成 JIANG Shengbao;NI Xuefeng;LIN Hao;LUO Tianming;XIE Guangliang;ZHANG Zhengcheng(China Electric Power Research Institute,Wuhan 430074,China;Wuhan Electric Power Technical College,Wuhan 430079,China)

机构地区：[1]中国电力科学研究院有限公司,武汉430074 [2]武汉电力职业技术学院,武汉430079

出　　处：《电力电容器与无功补偿》2019年第1期46-48,58,共4页Power Capacitor & Reactive Power Compensation

摘　　要：高压电力电容器极间固体绝缘广泛采用聚丙烯薄膜,液体绝缘广泛采用苄基甲苯,由此电力电容器的性能得到了很大提高。然而电力电容器在电力系统中运行数量巨大,难免会有漏油受潮故障发生,在这种条件下电容器必须不会发生扩大性故障。因此,极间绝缘在受潮条件下的绝缘性能对电力电容器的运行安全性至关重要。本文通过将电力电容器自然受潮的方式,获得电容器元件受潮条件下的绝缘强度,并用此数据评判高压电容器极间绝缘的耐受性能,为电力电容器的制造及运行提供参考。Polypropylene film is used widely solid insulation and monobenzyltoluene as liquid insulation between the poles of high voltage power capacitor and performance of the power capacitor is therefore improved greatly. However, such faults as oil leakage and moisture are inevitably occurred due to a large number of capacitors in operation. The capacitor, in this case, must not have expansion failure. Therefore, the insulation performance of the insulation between poles under the moisture condition is of great importance for safe operation of power capacitor. In this paper, the insulation strength of natural damped capacitor element is obtained by way of natural moisture of the power capacitor, the withstanding performance of the insulation between poles of high voltage capacitor is judged by such data so to provide reference for the manufacture and operation of powercapacitor.

关 键 词：极间绝缘 受潮 苄基甲苯 击穿场强 聚丙烯薄膜 串段 

分 类 号：TM53[电气工程—电器]