Abstract：Based on the analysis of a main transformer overexcitation protection maloperation, the existing problems in the setting calculation of the main transformer overexcitation protection on site are exposed. Through the investigation of the logic of the main transformer overexcitation protection of different mainstream protection manufacturers, the precautions and preventive measures in the setting calculation of the main transformer overexcitation protection of different protection manufacturers are given. For the setting calculation of the overexcitation protection, equipment Safe and reliable operation has certain reference value.
2020, Vol. 21 
