00624naa#a2200169#i#450# EN\\bibl\55103 20241218091631.3 2073-1574 20221117b2022####ek#y0engy0150####ca RU Selecting power transformers with different short circuit voltages for parallel operation Journal article Astrakhan Astrakhan State Technical University 2022 7 с. Journal article local Преобразование переменного тока в переменный.. 621.314.2 Plotnikov Igor' Igorevich vestnik.astu.org