绝缘材料
絕緣材料
절연재료
INSULATING MATERIALS
2014年
1期
97-100
,共4页
刘胜军%赵云涛%郭会永%刘山%冯正军
劉勝軍%趙雲濤%郭會永%劉山%馮正軍
류성군%조운도%곽회영%류산%풍정군
变压器%高压套管%设计缺陷%密封不严
變壓器%高壓套管%設計缺陷%密封不嚴
변압기%고압투관%설계결함%밀봉불엄
transformer%high voltage bushing%design defect%sealing leakage
介绍了一起110 kV变压器故障情况,并对其损坏原因进行了详细分析。结果表明:由于高压套管顶部连接帽不严,外部潮气进入变压器本体内部,引起调压线圈上部油纸绝缘受潮,导致油纸绝缘击穿放电而造成该变压器损坏。为避免类似事故的发生,应在优化变压器组件的产品设计和制造工艺两方面采取措施。
介紹瞭一起110 kV變壓器故障情況,併對其損壞原因進行瞭詳細分析。結果錶明:由于高壓套管頂部連接帽不嚴,外部潮氣進入變壓器本體內部,引起調壓線圈上部油紙絕緣受潮,導緻油紙絕緣擊穿放電而造成該變壓器損壞。為避免類似事故的髮生,應在優化變壓器組件的產品設計和製造工藝兩方麵採取措施。
개소료일기110 kV변압기고장정황,병대기손배원인진행료상세분석。결과표명:유우고압투관정부련접모불엄,외부조기진입변압기본체내부,인기조압선권상부유지절연수조,도치유지절연격천방전이조성해변압기손배。위피면유사사고적발생,응재우화변압기조건적산품설계화제조공예량방면채취조시。
An accident condition of 110 kV transformer was introduced, and the damage reason was analyzed in detail. The results show that because the top connection cap of high voltage bushing is not sealed tight, external moisture get into the transformer body, causing the top oil-paper insulation of the voltage coil damp, and leading to the breakdown discharge of oil-paper insulation and the damage of transformer. In order to avoid the occurrence of similar accident, measures should be taken in optimizing the product design and manufacturing process.