| 35kV环网电缆单相短路故障分析 |
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| 引用本文： | 宋大治,汪理.35kV环网电缆单相短路故障分析[J].都市快轨交通,2009,22(6):90--93. |
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| 作者姓名： | 宋大治 汪理 |
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| 作者单位： | 南京地下铁道有限责任公司,南京,210008 |
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| 摘 要： | 介绍一起地铁供电系统电缆单相短路故障，通过对保护动作、短路电流、电流测量、接地系统的全面分析，逐一明确保护拒动、保护误动、短路电流突变等故障原因，使存在的问题得以及时解决。
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| 关 键 词： | 地铁供电系统 35 kV环网 短路 保护 电流互感器 接地小电阻 |
| 修稿时间： | 2013/12/12 0:00:00 |
Analysis of A Single-phase Short-circuit Fault of Ring Network 35 kV Cables |
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| Song Dazhi Wang Li.Analysis of A Single-phase Short-circuit Fault of Ring Network 35 kV Cables[J].Urban Rapid Rail Transit,2009,22(6):90--93. |
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| Authors: | Song Dazhi Wang Li |
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| Institution: | Song Dazhi Wang Li(Nanjing Metro Co.,Ltd.,Nanjing 210008) |
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| Abstract: | A single-phase cable fault of ring network 35 kV cables occurred in subway power supply system. Through a comprehensive analysis for protection of action,short-circuit current,current measurement and grounding system,the reasons for the fault of protection refusal-to-move,protection maloperation and short-circuit current mutation were revealed one after another,so that problems were solved in time. |
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| Keywords: | subway power supply system 35 kV ring network short circuit protection current transformer low resistance grounding |
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