エステル系絶縁油中部分放電ならびにアーク放電で生成される分解ガス特性について

Translated title of the contribution: Characteristics of gas generation by partial and arc discharges in ester-based insulating oils

Masamichi Kato, Nobuyuki Oota, Tomoya Kageyama, Khairiah Binti Mohamad Radzi, Satoshi Matsumoto

Research output: Contribution to journalArticlepeer-review

Abstract

To apply dissolved gas analysis (DGA) for ester insulating oils, the gas generation characteristics of various ester insulating oils were studied under the partial discharges (PDs) and arc discharges. The test vessel was made for qualification of dissolved gas, and both PD and arc energy measuring devices were developed to estimate the discharge energy. The oil samples containing the dissolved gases were sampled and compared with before and after the discharge test, namely, these samples were analyzed by gas chromatograph. The analysis revealed the type and amount of dissolved gases caused by the discharges. In the paper, new diagnosis methods based on DGA are proposed to find abnormal conditions such as PDs and arc discharges in ester oil filled transformers.

Translated title of the contributionCharacteristics of gas generation by partial and arc discharges in ester-based insulating oils
Original languageJapanese
Pages (from-to)185-196
Number of pages12
JournalIEEJ Transactions on Fundamentals and Materials
Volume141
Issue number3
DOIs
Publication statusPublished - 2021 Mar 1

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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