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Research on PT neutral line failure
Author(s): 
Pages: 73-76,81
Year: Issue:  5
Journal: Relay

Abstract: 对PT中性线断线产生的三次谐波电压及基波零序电压进行了理论分析和实验验证,并提出了实用判据.简述了对PT中性线断线研究的现状,从基本的磁滞回线入手,根据励磁电流、磁通、磁势之间的关系,对PT中性线断线时的三次谐波产生的机理进行了理论分析,对由不对称负载造成的零序基波电压进行了理论推导,又通过大量的实验进行验证,提出简单实用的判据,并分析了可能受到影响的保护.对PT中性线断线的判据研究提供了理论依据...
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