書誌事項
- タイトル別名
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- A Method for Estimating the Current-Flux Curve of a Three-Phase Transformer for Electromagnetic Transient Simulations of Inrush Currents
- レイジトツニュウ デンリュウ ノ シュンジチ カイセキ オ モクテキ ト シタ サン ソウヘンアツキ ノ デンリュウ-ジソク トクセイ スイテイ シュホウ
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<p>When a transformer of a customer is energized in a distribution system, inrush currents whose magnitudes reach tens of rated currents may occur. The inrush currents may lead to an instantaneous voltage drop and/or an unnecessary operation of an overcurrent relay, and thus they affect power quality in the distribution system. When a new customer is connected to a distribution system, transmission and distribution companies in Japan use current-versus-time data of transformer inrush currents for their studies. However, such studies using current-versus-time data give worst-case or overestimated results. So as to obtain more accurate results, current-versus-flux curves of transformers are required to carry out simulations using an electromagnetic transient analysis program such as XTAP. So far, we have developed a method for estimating the current-versus-flux curve of a single-phase transformer from its current-versus-time data. Considering the fact that most of customer transformers are three-phase ones, this paper proposes a method for estimating the current-versus-flux curve of a three-phase transformer. The proposed method is validated by inrush-current experiments using two different three-phase transformers.</p>
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) 140 (2), 34-41, 2020-02-01
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
- 1390002184871742080
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- NII論文ID
- 130007793614
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- NII書誌ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL書誌ID
- 030244572
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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
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可