Analysis of Abnormal Detection Data of Dissolved Gases in 500kV Transformer Oil

Transformers may experience various faults during operation. In order to analyze the cause of the fault or even predict it, electrical and chemical methods need to be used for monitoring to ensure the safe and stable operation of the transformer. This article analyzes the phenomenon of acetylene and...

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Main Authors: Dai Jun, Chen Bin, Wu Zhiding
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/22/e3sconf_isesce2023_02015.pdf
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author Dai Jun
Chen Bin
Wu Zhiding
author_facet Dai Jun
Chen Bin
Wu Zhiding
author_sort Dai Jun
collection DOAJ
description Transformers may experience various faults during operation. In order to analyze the cause of the fault or even predict it, electrical and chemical methods need to be used for monitoring to ensure the safe and stable operation of the transformer. This article analyzes the phenomenon of acetylene and excessive gas content detected in the insulation oil of a 500kV transformer in a certain power plant. It is preliminarily judged that acetylene is generated by intermittent arcing inside the transformer. The excessive gas content is caused by poor sealing and leakage, incomplete degassing and exhaust before the transformer is put into operation, and residual gas gradually entering the transformer oil after the transformer is put into operation. Based on the analyzed cause of the fault, preventive measures such as strengthening daily inspections, investigating potential hazards, and conducting mass spectrometry detection are proposed.
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spelling doaj.art-0ac28e651ced4458a2411cc33e181a912023-05-11T09:09:12ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013850201510.1051/e3sconf/202338502015e3sconf_isesce2023_02015Analysis of Abnormal Detection Data of Dissolved Gases in 500kV Transformer OilDai Jun0Chen Bin1Wu Zhiding2Datang Hydropower Science & Technology Research Institute Co, LtdDatang Hydropower Science & Technology Research Institute Co, LtdDatang Hydropower Science & Technology Research Institute Co, LtdTransformers may experience various faults during operation. In order to analyze the cause of the fault or even predict it, electrical and chemical methods need to be used for monitoring to ensure the safe and stable operation of the transformer. This article analyzes the phenomenon of acetylene and excessive gas content detected in the insulation oil of a 500kV transformer in a certain power plant. It is preliminarily judged that acetylene is generated by intermittent arcing inside the transformer. The excessive gas content is caused by poor sealing and leakage, incomplete degassing and exhaust before the transformer is put into operation, and residual gas gradually entering the transformer oil after the transformer is put into operation. Based on the analyzed cause of the fault, preventive measures such as strengthening daily inspections, investigating potential hazards, and conducting mass spectrometry detection are proposed.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/22/e3sconf_isesce2023_02015.pdf
spellingShingle Dai Jun
Chen Bin
Wu Zhiding
Analysis of Abnormal Detection Data of Dissolved Gases in 500kV Transformer Oil
E3S Web of Conferences
title Analysis of Abnormal Detection Data of Dissolved Gases in 500kV Transformer Oil
title_full Analysis of Abnormal Detection Data of Dissolved Gases in 500kV Transformer Oil
title_fullStr Analysis of Abnormal Detection Data of Dissolved Gases in 500kV Transformer Oil
title_full_unstemmed Analysis of Abnormal Detection Data of Dissolved Gases in 500kV Transformer Oil
title_short Analysis of Abnormal Detection Data of Dissolved Gases in 500kV Transformer Oil
title_sort analysis of abnormal detection data of dissolved gases in 500kv transformer oil
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/22/e3sconf_isesce2023_02015.pdf
work_keys_str_mv AT daijun analysisofabnormaldetectiondataofdissolvedgasesin500kvtransformeroil
AT chenbin analysisofabnormaldetectiondataofdissolvedgasesin500kvtransformeroil
AT wuzhiding analysisofabnormaldetectiondataofdissolvedgasesin500kvtransformeroil