Partial Discharge under Pulse Voltage with Narrow Pulse Width
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- Obata Koji
- Hitachi Research Lab., Hitachi, Ltd.
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- Takeuchi Ryozo
- Hitachi Research Lab., Hitachi, Ltd.
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- Shimozono Tadahiro
- Hitachi Industrial Equipment Systems Co. Ltd.
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- Kikuchi Hideyuki
- Hitachi Magnet Wire Corp.
Bibliographic Information
- Other Title
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- 幅の狭いパルス電圧下の部分放電特性
- ハバ ノ セマイ パルス デンアツカ ノ ブブン ホウデン トクセイ
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Abstract
When steep-fronted surge voltages are generated and applied to a motor by an inverter drive, higher voltages are distributed at turn-to-turn insulations than those of a motor supplied by line voltage. In addition, the voltage waveforms are quite different, especially pulse widths of them are narrower than those of a motor supplied by line voltage. This paper describes partial discharge and electrical lifetime characteristics of turn-to-turn insulation when pulse voltages are applied. As a result, it is found that partial discharge inception voltage increases, the number of partial discharges decreases and lifetime of insulations increases when pulse widths of applied voltages decrease as narrow as those of turn-to-turn voltages of motors fed by inverter drives. These results can probably improve a present design and a quality assurance of materials and motor insulations for inverter drives in the future.
Journal
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- IEEJ Transactions on Fundamentals and Materials
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IEEJ Transactions on Fundamentals and Materials 128 (4), 298-306, 2008
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
- 1390001204593509632
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- NII Article ID
- 10021129734
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- NII Book ID
- AN10136312
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- ISSN
- 13475533
- 03854205
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- NDL BIB ID
- 9452069
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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