| 高压接地开关短时耐受电流问题技术分析及计算 |
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| 引用本文： | 袁德刚.高压接地开关短时耐受电流问题技术分析及计算[J].电力机车与城轨车辆,2011,34(1):41-43. |
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| 作者姓名： | 袁德刚 |
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| 作者单位： | 南车株洲电力机车有限公司; |
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| 摘 要： | 高压接地开关是将牵引机车上的主断路器两侧的电路接地以确保机车检验和维修时人身安全的装置,短时耐受电流参数用于考核该产品的热稳定性.根据客户需求提高高压接地开关的短时耐受电流能力,可以通过增大单个导流部件导流截面积,同时增大闸刀转动角度以减小导流部件接触电阻实现.
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| 关 键 词： | 机车 高压接地开关 短时耐受电流 计算 改进 |
Technical analysis and calculation about short-time current-withstand of high voltage earthing switch |
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| YUAN De-gang.Technical analysis and calculation about short-time current-withstand of high voltage earthing switch[J].Electric Locomotives & Mass Transit Vehicles,2011,34(1):41-43. |
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| Authors: | YUAN De-gang |
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| Institution: | YUAN De-gang(CSR Zhuzhou Electric Locomotive Co.,Ltd.,Zhuzhou 412001,China) |
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| Abstract: | The high voltage earthing switch is designed to ground the circuits on both sides of the circuit breaker to ensure safety when inspecting and maintaining.The technical data of short-time current-withstand is to check the thermal stability of the switch.To meet the client's requirement of improving the thermal stability of the earthing switch,we augment the conducting section of a single conducting part.In addition,we increase the turning angle of the knives to decrease the contacting resistance of the condu... |
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| Keywords: | locomotive earthing switch short-time current-withstand calculation improvement |
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