Каталог стандартов

+7 (495) 223-46-76 +7 (812) 309-78-59

BS 7821-4:1995

Заменен

Three phase oil-immersed distribution transformers, 50 Hz, from 50 to 2500 kVA with highest voltage for equipment not exceeding 36 kV, Determination of the power rating of a transformer loaded with non-sinusoidal currents — 8 стр.

Описание Изменения Ссылки Версии