Transformers; three-phase oil immersed type power transformers with off-circuit tap-changer or with on-load tap-changer 12500 to 80000 kVA for 50 Hz and U<(Index)m> up to 123 kV; characteristics— 3 стр.
Transformers; three-phase oil immersed transformers with off-circuit tap-changer or with on-load tap-changer 12500 to 80000 kVA for 50 Hz and U<(Index)m> up to 123 kV; requirements and accessories— 12 стр.
Transformers; three-phase oil immersed transformers with off-circuit tap-changer or with on-load tap-changer, 12500 to 80000 kVA for 50 Hz and U<(Index)m> 123 kV; main dimensions and weights for 25000 to 40000 kVA— 4 стр.