Cause analysis and countermeasures of excessive gas content in transformer oil

CAO Songyan; YANG Jun; KE Yujin

doi:10.19666/j.rlfd.201710158

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Cause analysis and countermeasures of excessive gas content in transformer oil

更新时间：2025-09-28

- Cause analysis and countermeasures of excessive gas content in transformer oil
- Thermal Power Generation Vol. 47, Issue 8, Pages: 138-142(2018)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201710158
  CLC： TM855
- Published Online：02 August 2018，
  
  Published：2018
- 稿件说明：
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CAO Songyan, YANG Jun, KE Yujin. Cause analysis and countermeasures of excessive gas content in transformer oil[J]. Thermal power generation, 2018, 47(8): 138-142.
DOI：

CAO Songyan, YANG Jun, KE Yujin. Cause analysis and countermeasures of excessive gas content in transformer oil[J]. Thermal power generation, 2018, 47(8): 138-142. DOI： 10.19666/j.rlfd.201710158.

摘要

变压器油中含气量是保证变送电装备安全运行的重要指标

超高压大容量变压器油中含气量超标时

会加速油品和绝缘材料的老化

严重时导致击穿

影响设备安全运行。本文在研究油中溶解气体组分和特性的基础上

参照国内外相关标准和厂家规定

对某集团发电企业330 kV及以上等级的336台变压器运行油中含气量进行调研

分析含气量超标原因

提出对应措施

并指出油中含气量指标对保证变压器绝缘性能和设备密封及防止油品老化的重要性。

Abstract

The gas content in transformer oil is an important indicator to ensure the safe operation of transmission equipment. When the content of the ultra-high voltage and large-capacity transformer oil exceeds the standard value

it can accelerate the aging of the oil and insulation materials. In severe cases

it can cause breakdown and affect the safe operation of the equipment. In this study

based on the study of dissolved gas components and characteristics in the oil

with reference to relevant domestic and foreign standards and manufacturer's regulations

the gas content of 336 sets of transformers in 330 kV and above grades of a certain group power generation enterprises is investigated. The reasons of excessive gas content are analyzed and the corresponding measures are put forward. And the significance of the gas content indicator in the oil to ensure the insulation performance of the transformer

the sealing of the equipment

and preventing oil aging is emphasized.

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Related Author

ZHANG Hongjun1 1.Xi'an Thermal Power Research Institute Co.Ltd.

TANG Liying1

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NIE Ming2

YU Zaisong1

ZHANG Sheng-hanNorth China Electric Power University

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