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。
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.
参考文献
| [1] | 陈名铭,韦国,刘君,赵赢峰,周利军,吴广宁,朱毅刚,张云.温度和水分对变压器油纸绝缘系统频域介电谱特性的影响[J].绝缘材料,2012(01):57-61. |
| [2] | 隋彬,李延涛,吴广宁,李先浪,卢剑,李伟.水分和氧气对油纸绝缘老化的影响[J].绝缘材料,2013(04):43-47. |
| [3] | 阎春雨.采用油中溶解气体分析法判断变压器故障应注意的事项[J].变压器,2006(09):38-41. |
| [4] | DL/T 393-2010.输变电设备状态检修试验规程[S]. |
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