| 信息系统防雷工程中降低N-PE电压的常用方法 |
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| 引用本文： | 刘国臻,龚家军.信息系统防雷工程中降低N-PE电压的常用方法[J].气象科技,2007,35(1):130-132. |
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| 作者姓名： | 刘国臻 龚家军 |
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| 作者单位： | 湖北省十堰市气象局,十堰,442000 |
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| 摘 要： | 针对信息系统防雷工作中经常出现电源N-PE(中性线与保护地)电压过大而影响设备正常工作的情况,分析了N-PE电压产生的机理,它们是纯电阻引起的N-PE电压、地电路环路引起的N-PE电压和公共阻抗干扰引起的N-PE电压;分讨论了引起N-PE电压的常见原因以及降低N-PE电压的常用方法。
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| 关 键 词： | N-PE电压 地电路环路 公共阻抗 |
| 收稿时间： | 1/5/2006 12:00:00 AM |
| 修稿时间： | 2006年1月5日 |
Common Methods for Reducing N PE Voltage for Lightning Protection Engineering of Information Systems |
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| Liu Guozhen and Gong Jiajun.Common Methods for Reducing N PE Voltage for Lightning Protection Engineering of Information Systems[J].Meteorological Science and Technology,2007,35(1):130-132. |
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| Authors: | Liu Guozhen and Gong Jiajun |
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| Institution: | Shiyan Meteorological Bureau, Hubei Province, Shiyan 442000;Shiyan Meteorological Bureau, Hubei Province, Shiyan 442000 |
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| Abstract: | An analysis is made of the mechanisms of high N-PE voltage formation,which are induced by pure resistance,earth circuit loop,and common impedance,in connection with the common faults resulted from high N-PE(neutral and protected earth conductor) voltage encountered in the operational lightning protection for the information system.The common causes for high N-PE voltage and the methods for reducing N-PE voltage are also discussed. |
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| Keywords: | N-PE voltage earth circuit loop common impedance |
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