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Countermeasures analysis and over-excitation impact for transformers about PT second single-phase grounding
Author(s): 
Pages: 84-87,91
Year: Issue:  23
Journal: Relay

Keyword:  单相接地过激磁额定电压;
Abstract: 就运行中发生的一起PT二次单相接地故障,引起变压器过激磁保护误动事故案例,通过现场模拟PT二次回路单相接地试验,验证其对变压器过激磁保护装置的影响,并对此进行分析,提出相应的解决对策.
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