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Tunnel Construction ›› 2012, Vol. 32 ›› Issue (增刊1): 28-31.DOI: 10.3973/j.issn.1672-741X.2012.z1.006

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Study on Electric Current Protection of Direct Current Traction System

OU Zhongliang   

  1. (The Electrical Service Engineering Co., Ltd. of China Railway First Group, Shenzhen 518173, Guangdong, China)
  • Received:2012-06-19 Revised:2012-10-15 Online:2012-11-20 Published:2013-02-19

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Abstract:

The ROR delayed protection malfunction of electric current protection of direct current traction system used in Shenzhen Metro and principles and action course of delayed protection of electric current raising rate of DCP106 protection device are analyzed and compared with DPU96 protection device.

Key words: direct current traction system, protection device, electric current raising rate

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