一起涌流引起的主变跳闸事故仿真分析及其改进措施
Journal of Henan Science and Technology(2014)
Abstract
以某220kV变电站两台主变投运时多次跳闸为例,分析研究了变压器励磁涌流与和应涌流对主变投运跳闸的影响.在此基础上,根据该变电站实际参数搭建了基于EMTP的仿真模型,验证了是励磁涌流与和应涌流引起的过电流导致主变跳闸,并从保护定值整定、主变压器选型及投运方案等角度提出了避免因励磁涌流、和应涌流引发跳闸的措施,对工程实际有一定的指导意义.
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