| 三相四线制低压配电系统中零线断线过电压保护 |
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| 引用本文： | 朱雪凌,王云年,周国安. 三相四线制低压配电系统中零线断线过电压保护[J]. 华北水利水电学院学报, 2004, 25(1): 33-35 |
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| 作者姓名： | 朱雪凌 王云年 周国安 |
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| 作者单位： | 华北水利水电学院,河南,郑州,450011;三门峡水利枢纽管理局,河南,三门峡,472000 |
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| 摘 要： | 分析了三相四线制低压配电系统中零线不断开和零线断开引起过电压的原因,通过引入过电压保护电路解决了问题,其原理是不论零线是否存在,只要中性点偏移电压超过允许值,过电压保护装置即动作,从而避免事故的发生.
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| 关 键 词： | 零线 断线 过电压保护 |
| 文章编号： | 1002-5634(2004)01-0033-03 |
| 修稿时间： | 2003-07-10 |
The Protection of Exceeded Voltage for the Ground Wire and the Disconnected Wire in Three-phase,Four-wire Lower Supplies and Distribution System |
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| ZHU Xue-ling,WANG Yun-nian,ZHOU Guo-an. The Protection of Exceeded Voltage for the Ground Wire and the Disconnected Wire in Three-phase,Four-wire Lower Supplies and Distribution System[J]. Journal of North China Institute of Water Conservancy and Hydroelectric Power, 2004, 25(1): 33-35 |
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| Authors: | ZHU Xue-ling WANG Yun-nian ZHOU Guo-an |
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| Affiliation: | ZHU Xue-ling~1,WANG Yun-nian~2,ZHOU Guo-an~1 |
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| Abstract: | By analyzing the reason of exceeded voltage of the ground wire connecting or disconnecting in 3-phase,4-wire lower supplies and distribution system,the means of solving the problem is obtained,that is,adopting protective circuit of exceeded voltage.The principle is that the exceeded voltage device operates when the neutrality's deviation voltage exceeds its allowed voltage,whether the ground wire exists or not,so it can prevent the trouble. |
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| Keywords: | ground wire disconnected wire protection of exceeded voltage |
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