A study on the operation characteristics of main circuit breaker for AC EMU

被引：0
|
作者：
Kim S.-H. [2 ]
Kim C.-S. [3 ]
Kim J.-M. [1 ]
机构：
[1] Dept. of Transportation System Engineering, Graduate School of Transportation, Korea National University of Transportation
[2] Dept. of Transportation Policy Transportation System Engineering, Korea National University of Transportation
[3] Dept. of Railway Vehicle System Engineering, Korea National University of Transportation
来源：
Transactions of the Korean Institute of Electrical Engineers | 2019年 / 68卷 / 11期
关键词：
EMU(Electric Multiple Unite); MCB(Main Circuit Breaker); Operation Failure;
D O I：
10.5370/KIEE.2019.68.11.1477
中图分类号：
学科分类号：
摘要：
This paper presents an analysis of the operating characteristics of MCB in the power system of EMU powered by AC 25kV. The MCB is installed on the roof of the EMU vehicle and it performs on and off operations in poor environments conditions depending on the external environment, such as vibration and temperature changes due to operation. In the Shinbundang-Line driverless EMU vehicle system, as MCB’s operation failures occurred at outdoor temperature range of –1℃~ -11℃. It is analyzed the operate characteristic and the hypothesis theory of operation failure was established. It is verified experimentally and an applicable system is proposed that can operate smoothly under service environment condition. Finally, the results of the verification were applied to the train and the results of the proposed system were verified through long-term and follow-up observation. Copyright © The Korean Institute of Electrical Engineers
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收藏
页码：1477 / 1481
页数：4
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