Development of a New System for Detecting Microwave Associated with a Partial Discharge of the Stator Coil in Generator Using Spatial Phase Difference Method
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- Kawada Masatake
- Osaka University
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- Kawasaki Zen-Ichiro
- Osaka University
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- Matsu-ura Kenji
- Osaka University
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- Musashiya Toshio
- Nihon Tsushinki Co., INC.
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- Otoba Katsunori
- The Kansai Electric Power Co., INC.
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- Kuroki Satoru
- The Kansai Electric Power Co., INC.
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- Moriyama Takashi
- The Kansai Electric Power Co., INC.
Bibliographic Information
- Other Title
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- GHz帯電磁波空間位相差法を用いた発電機固定子コイルの非接触部分放電検出システムの開発
- GHzタイ デンジハ クウカン イソウサホウ オ モチイタ ハツデンキ コテイ
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Abstract
This paper presents a new system for detecting electromagnetic waves emitted from a partial discharge (PD) due to a material defect in a high-voltage electric machinery and apparatus. PD is a symptom and/or a direct cause of the deterioration of the insulation used in the high-voltage stator coil. This system can detect PD by using the spatial phase information of the microwave emitted from PD which is very short duration voltage pulse. We describe the properties of this system, which is composed of two double-ridge-guidehorn-antennas, a GHz-2ch-down-converter (originally designed and produced), two A/D converters and a computer, and experimentally show that this system is able to apply to detection of the microwave emitted from PD of the stator coil in this paper. The result of this work is the development of new non-contact PD detection system for the generator which can be performed by station personnel.
Journal
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- IEEJ Transactions on Power and Energy
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IEEJ Transactions on Power and Energy 117 (2), 224-232, 1997
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
- 1390001204605750400
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- NII Article ID
- 130006842119
- 10004223347
- 10009874865
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- NII Book ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL BIB ID
- 4139412
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed