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- 脇本 聖
- (株)明電舎
書誌事項
- タイトル別名
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- An Overcurrent Tripping Phenomenon of Capacitors with 6% Series Reactor upon Energization of Parallel Connected Transformer (Sympathetic Inrush)
- ヘイレツ ヘンアツキ トウニュウジ ノ 6%チョクレツ リアクトル ツキ コンデンサ ノ カデンリュウ トリップ ゲンショウ
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This paper discusses the harmonic distortion occurring at capacitors with 6% series reactor upon energization of parallel connected 3-winding transformer. The harmonic order of resonance between the capacitor and the 6% series reactor is 4.1th harmonic, which is fairly close to the 4th harmonic. Energizing a transformer on the power system can cause sympathetic magnetizing inrush currents to flow in an already energized parallel transformer. Energizing the second transformer causes a voltage drop across the resistance of the source line feeding the transformers. This voltage drop may cause a saturation of the already energized transformer in the negative direction. This saturation causes magnetizing inrush current to supply the flux. This sympathetic inrush current through inductive reactance associated with the source line and leakage reactance of the already energized transformer causes voltage distortion at the load side (capacitor circuit). As the 4th harmonic of the voltage becomes larger, the 4.1th harmonic resonance between the power capacitor and the 6% series reactor occurs, and huge current instantaneously flows. EMTP (Electro Magnetic Transients Program) simulation of the energization of parallel connected transformer (sympathetic inrush) was carried out. As a result, the waveforms simulated by EMTP reproduced the measured waveforms.
収録刊行物
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- 電気学会論文誌B(電力・エネルギー部門誌)
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電気学会論文誌B(電力・エネルギー部門誌) 135 (12), 693-703, 2015
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390282679579483136
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- NII論文ID
- 130005112588
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- NII書誌ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL書誌ID
- 026987080
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
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- 使用不可