10 kV出线速断保护短延时对变压器的影响分析

Guangxi Electric Power(2019)

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Abstract
为提高配网供电可靠性,分析了10 kV出线速断保护增加短时延对变压器的影响.分析结果表明,在变压器允许耐受短路电流的冲击下,短时延的增加对绕组热稳定、动稳定影响不大,但短路冲击累积效应会使变压器铜绕组、垫块等产生微小的残余形变,应当引起重视.
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