2017年12月12日
Fundamental study on re-ignition process for CO2-blast arcs in a model circuit breaker using synthetic tests highly controlled by power semiconductors
ICEPE-ST 2017 - 4th International Conference on Electric Power Equipment- Switching Technology
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- 巻
- 2017-
- 号
- 開始ページ
- 263
- 終了ページ
- 267
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1109/ICEPE-ST.2017.8188842
- 出版者・発行元
- Institute of Electrical and Electronics Engineers Inc.
This paper reports fundamental measurement results on re-ignition process in synthetic tests for CO2 arcs in a gas blast nozzle. The synthetic test system used comprises a DC current source for an arc ignition, a half cycle AC current source, a DC current source for artificial current zero point and an impulse-like voltage source for application of quasi-transient recovery voltage (quasi-TRV). The electric current and voltage were switched by power-semiconductor-switches to guarantee high time-accuracy of the arc current injection and voltage application. After current zero point, quasi-TRV with a peak of 7.5 kV was applied between the electrodes with a precise specified delay time td to judge arc re-ignition. The results indicated that td = 25 μs involves 60% probability of arc re-ignition. The re-ignition was inferred to originate in thermal mode from joule heating by a small current injection to the residual arc during the quasi-TRV application.
- リンク情報
- ID情報
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- DOI : 10.1109/ICEPE-ST.2017.8188842
- SCOPUS ID : 85046941398