tap changing transformer трансформаторно-ключова виконавча структура 6 transformer-and-switches executive 3 transformer-and-switches executive structure 3 voltage stabilizer 3 секціонована обвитка 3 AC voltage converter 2 discrete smart transformer 2 multivariate 2 sectionalized winding 2 smart transformer 2 багатоваріантність 2 багаторівневий випрямляч 2 перетворювач напруги змінного струму 2 tap changing transformer AC voltage stabilizers 1 converting field 1 decomposition 1 discrete smart transformer transformer-and-switches executive 1 discrete-time control 1 efficiency of use of switch elements 1 installed power of the transformer 1 level control 1 multi-level rectifier 1 multilevel rectifier, 1 partitioned winding 1 range of voltage stabilization 1 reconfiguration 1 regulator 1 thermal processes 1