Voltage-time characteristics and reliability evaluation method of oil-filled transformer for non-effectively grounded voltage class (特集 IWHV 2007 (5th International Workshop on High Voltage Engineering))
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概要
- 論文の詳細を見る
The power frequency withstand voltage tests are specified on electric power equipment in JEC-0102 by evaluating the lifetime reliability with a Weibull distribution function. It may be applied on 66-154kV transformer for non-effectively grounded voltage class. The present paper describes the results that measured AC insulation characteristics (Voltage-time characteristics) and Weibull parameters for oil-filled transformer of 66-154kV class. These measurement parameters were compared with the conventional Weibull parameters, which were applied for oil-filled transformer of voltage class above 154kV. Furthermore the non-partial discharge test voltage was evaluated by trial calculations, using the parameters obtained this time or typical parameters.
- 社団法人 電気学会の論文
- 2007-12-01
著者
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OKABE Shigemitsu
Tokyo Electric Power Company
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OKABE Shigemitsu
High Voltage & Insulation Group R&D Center, Engineering R&D Division, the Tokyo Electric Power Compa
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TSUBOI Toshihiro
Tokyo Electric Power Company
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TAKAMI Jun
High Voltage & Insulation Group, R&D Center, TEPCO
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TSUBOI Toshihiro
High Voltage & Insulation Group, R&D Center, TEPCO
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- Voltage-time characteristics and reliability evaluation method of oil-filled transformer for non-effectively grounded voltage class (特集 IWHV 2007 (5th International Workshop on High Voltage Engineering))
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