De-energized Linear Tap Changer
This tap-changer is suitable for three-phase or single-phase oil-immersed power transformer with frequency of 50Hz,60Hz, rated voltage 35kV(highest voltage for equipment 40.5 kV) and below rated current from 20 to 300A. It can be equipped directly on transformer tank cover or tank wall, they must be working under non-energized.Type of tap change and installation size chart | ||||
Type of tap-changer | Rated current (A) | Highest voltage forequipment (kV) | NO.of phases | Regulating position |
WDT II 63/12-4 ×3 | 63 | 12 | 1 | Middle Part |
WDTII125/12-4×3 | 125 | |||
WDT II 250/12-4×3 | 250 | |||
WDT II 63/12-6×51 | 63 | |||
WDT II 125/12-6×51 | 125 | |||
WDT II 250/12-6×51 | 250 | |||
WDT II 125/12-6×51 | 125 |














