An analysis for fuse blowing of potential transformers in three-phase connection

摘要

The paper describes the analysis results of the influence about a fuse blowing on high voltage side of potential transformer (PT) in three- phase group, or in two serial connecting PT sets, which may be useful to reduce the cost for protect from it and for some equipments concerned. Besides, it is in favor of reasonable selection of PT set with suitable three-phase connection group.