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高铁牵引变电所接地电阻测试及降阻措施分析
Authors
伟 曾
Publication date
25 March 2016
Publisher
Universe Scientific Publishing Pte. Ltd.
Doi
Abstract
<p>由于某高速铁路途径山区地带平地资源稀缺,为少占耕地,某220kV 牵引变电所选址于较缓山坡上。所址区域表层覆盖浅薄,基岩<br />为花岗岩,牵引变电所所址接地条件不理想。所址区域采用四极等距法现场实测土壤电阻率数据为516.2Ω·m 及采用三极夹角法实测接地电阻为<br />1.2Ω。根据《铁路电力牵引供电设计规范》TB10009— 2005 的规定,牵引变电所接地电阻一般不大于0.5Ω。结合现场实际情况对接地网整改,并<br />对几种整改措施的分析。</p></jats:p
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Last time updated on 23/06/2021