This paper proposes a three-terminals soft open point (SOP) operation control mode switching technology under the multi-feeder faults. Firstly. combined with the inner and outer loop structures of control mode of three-terminals SOP. a control mode switching strategy with improved control logic is proposed. https://www.kingarte.com/product-category/food-servicecommercial-kitchen-equipmentfood-preparation-equipmentcommercial-meat-processing-equipmentmeat-mixers/