The transformation ratio of the original current transformer (CT) on the transformer HV side was so large that a parameter for the differential protection software exceeded its settable scope.
因变压器高压侧的电流互感器选择变比过大，以致超出差动保护软件的参数设置的范围。
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Conclusions: To gain more benefit and expense ratio, medical use and society benefit, hospital of CT examination more than 100 people per day shou...