Autotransformers, due to their small dimensions and resin finishing technology, are usually used to start large squirrel-cage motors for ship’s tubular rudder systems, amongst others.An autotransformer, during the activation of a squirrel-cage motor, lowers the voltage and the starting current, and also the starting torque, which results in a gentle start-up and lower losses in the motor circuit. The use of an autotransformer increases the mechanical durability of the driving mechanism and facilitates the selection of protective measures. The autotransformer start-up may be fully automatic through the use of appropriate connecting devices.
Core– grain-oriented electrical steel sheets
assembled into core using the “Step-Lap” method
Winding – electrolytic aluminium or copper wire or foil
Optional enclosure IP20, IP21,IP23,IP31,IP33,IP54