Discrimination for Multiplespot Grounding Fault of Transformer Core

Liu Qingning

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Discrimination for Multiplespot Grounding Fault of Transformer Core

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- Discrimination for Multiplespot Grounding Fault of Transformer Core
- Issue 3, (1998)
- 作者机构：
  
  宝珠寺发电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM41
- Published：1998
- 稿件说明：
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[1]刘庆宁.变压器铁芯多点接地故障判断[J].四川电力技术,1998(03):27-29.

Liu Qingning. Discrimination for Multiplespot Grounding Fault of Transformer Core[J]. 1998, (3).
[1]刘庆宁.变压器铁芯多点接地故障判断[J].四川电力技术,1998(03):27-29. DOI：

Liu Qingning. Discrimination for Multiplespot Grounding Fault of Transformer Core[J]. 1998, (3). DOI：

摘要

以龚嘴水力发电总厂三台变压器为例，介绍用绝缘油气相色谱分析法，铁芯外引接地电流测量法和空载试验法来判断变压器铁芯是否产生多点接地故障。气相色谱分析法对于监测故障点产气速率灵敏、准确。监测变压器铁芯外引接地电流可在线诊断铁芯多点接地故障。变压器空载试验可发现铁芯内表面接地故障比较灵敏。

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