| 土壤湿度变化对线路接地电阻的影响研究 |
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| 引用本文： | 刘靖国.土壤湿度变化对线路接地电阻的影响研究[J].华北电力技术,2009(3):14-17. |
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| 作者姓名： | 刘靖国 |
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| 作者单位： | 华北电网有限公司大同超高压供电公司,山西,大同,037008 |
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| 摘 要： | 铁塔的接地电阻与其所处土壤的电阻率有关，而土壤电阻率又与土壤的湿度相关。针对大同超高压供电公司管理的500kV输电线路，从2007年8月到2008年5月，对78基典型区域铁塔的接地电阻和土壤湿度定期选行了监州，获得了研究土壤湿度和接地电阻关系的第一手资料。由铁塔的接地电阻和铁塔接地装置参数获得了铁塔所在地的电阻率。研究了各种土壤下土壤电阻率和湿度的关系，并总结了不同季节土壤湿度的变化规律及其对于接地电阻的影响。
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| 关 键 词： | 接地电阻 土壤电阻率 土壤含水率 季节变化 |
Influence of Soil Moisture Variation on Line Grounding Resistance |
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| Liu Jing-guo.Influence of Soil Moisture Variation on Line Grounding Resistance[J].North China Electric Power,2009(3):14-17. |
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| Authors: | Liu Jing-guo |
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| Affiliation: | Datong EHV Power Transmission Company of NCGC;Datong 037008;China |
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| Abstract: | The grounding resistance of transmission tower is correlated to the resistivity of the soil,soil resistivity is related to soil moisture.we periodically monitored the grounding resistance and soil moisture content of 78 typical transmission towers among the 500 kV transmission lines of Datong EHV Power Transmission Company,from August 2007 to May 2008,and obtained a first hand data on the relationship between soil moisture content and grounding resistance.Thus the soil resistivity where the transmission tow... |
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| Keywords: | grounding resistance soil resistivity soil moisture content seasonal change |
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