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Analysis and Discussion of the Effect of the Exciation Surge on the Transformer Differential Protection
Author(s): 
Pages: 15-17
Year: Issue:  5
Journal: Electric Switcher

Keyword:  励磁涌流谐波差动保护高压试验;
Abstract: 通过对变压器励磁涌流波形特点的分析,探讨了其差动保护可靠性及其与高压试验之间的关系.以一起大型变压器(电压等级为500kV)的差动保护误动的实际案例进行分析,对其现场第一手数据和试验波形进行研究和分析,发现为避免励磁涌流引发了变压器差动保护的误动作,现场技术人员在进行差动保护整定计算的过程中,不仅要使所用参数、数据符合相关的规程和标准,熟悉差动保护的特性,同时也必须要了解高压试验对变压器励磁涌流特...
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