Potential and Temperature Distributions on Stress Grading System of Motor Coil under Repetitive Impulses
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- Nakamura Takahiro
- Electrical and Electronic Engineering, University of Tokyo
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- Kumada Akiko
- Electrical and Electronic Engineering, University of Tokyo
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- Ikeda Hisatoshi
- Electrical and Electronic Engineering, University of Tokyo
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- Hidaka Kunihiko
- Electrical and Electronic Engineering, University of Tokyo
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- Boggs Steven A.
- Institute of Materials Science, University of Connecticut
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- Tsuboi Yuichi
- Toshiba Mitsubishi-Electric Industrial Systems Corporation
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- Kisakibaru Tomohito
- Toshiba Mitsubishi-Electric Industrial Systems Corporation
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- Sakurai Takayuki
- Toshiba Mitsubishi-Electric Industrial Systems Corporation
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- Yoshimitsu Tetsuo
- Toshiba Mitsubishi-Electric Industrial Systems Corporation
Bibliographic Information
- Other Title
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- 繰り返しインパルス印加時のモータコイルにおける電界緩和層の電位分布および温度分布
- クリカエシ インパルス インカジ ノ モータコイル ニ オケル デンカイ カンワソウ ノ デンイ ブンプ オヨビ オンド ブンプ
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Abstract
Recently, it has been pointed out that the erosion of stress grading systems of converter-fed rotating machines may occur by partial discharges and heat generation. It is necessary to measure not only temperature distributions but also potential distributions to grasp the erosion process and to design reliable insulation systems even under inverter surges. Therefore, in this study, the potential distributions under repetitive pulses were measured by a Pockels sensor which covers wide frequency up to GHz. Consequently, it was observed that the field concentrates on the Corona Armor Tape (CAT) closer to the stator core under shorter rising impulse voltage. In addition to this, it has been confirmed that the field concentrates on the CAT during the wave-front of impulses and on Stress Grading Tape (SGT) in the wave-tail of impulses.
Journal
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- IEEJ Transactions on Fundamentals and Materials
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IEEJ Transactions on Fundamentals and Materials 135 (2), 100-106, 2015
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
- 1390282679576348032
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- NII Article ID
- 130004869437
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- NII Book ID
- AN10136312
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- ISSN
- 13475533
- 03854205
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- NDL BIB ID
- 026094643
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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