Partial Discharge Measurement in Cast Resin Transformer under Impulse Voltage Application

カテゴリ: 部門大会

論文No: 9-D-a1-3

グループ名: 【A】令和5年電気学会基礎・材料・共通部門大会

発行日: 2023/08/24

著者名: Yuanhang Yao(Kyushu Institute of Technology)，Mizuki Miyagawa(Kyushu Institute of Technology)，Ryota Koresawa(Kyushu Institute of Technology)，Masahiro Kozako(Kyushu Institute of Technology)，Masayuki Hikita(Kyushu Institute of Technology)，Katsutoshi Takei(TE

キーワード: Transformer|Partial dischargeImpulse voltage

要約(日本語): To study partial discharge (PD) amplitude in an actual transformer winding subjected to lightning impulses, bipolar impulse voltages were applied to the two high voltage windings of a cast resin transformer (CRTr). A differential current transformer (CT) method was developed to detect impulse PD signals in the high voltage winding. After denoising, the PD charge at impulse voltage was calculated by using the current integration method in this work. As a result, PDs with a magnitude of μC that can damage the winding insulation property.

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