Elucidation of a Peculiar Phenomenon of Voltage Measuring at a Substation
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- Takafuji Kouya
- Chubu Electric Power Co., Inc.
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- Satou Takashi
- Chubu Electric Power Co., Inc.
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- Itou Hisanori
- Chubu Electric Power Co., Inc.
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- Kouda Isao
- Chuden CTI CO., LTD
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- Haba Toshiaki
- Chuden CTI CO., LTD
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- Satake Atushi
- Chuden CTI CO., LTD
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- Haginomori Eiichi
- Chuo University
Bibliographic Information
- Other Title
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- 変電所における計測電圧特異現象の解明
- ヘンデンショ ニ オケル ケイソク デンアツ トクイ ゲンショウ ノ カイメイ
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Description
An automatic fault-recorder installed in a substation of Chubu Electric Power Company detected a peculiar phenomenon that bus-bar voltage fell to around 20-30% of the nominal value for a short time (about 8-10 cycles) though electric current didn't change during the period. The phenominon was recorded several times.<br>In this paper, we analyzed the origin of this phenomenon and conducted simulations by EMTP. As a result, we estimated that this phenomenon occurred by the saturation of VT (voltage transformer), and this saturation caused by lightning strokes to the transmission line with line arresters, which have been increasingly installed in recent years. Moreover, we evaluated the influence of the phenomenon to protection relays.
Journal
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- IEEJ Transactions on Power and Energy
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IEEJ Transactions on Power and Energy 130 (2), 158-164, 2010
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390282679578324352
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- NII Article ID
- 10026226428
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- NII Book ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL BIB ID
- 10567861
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed