Three Phase Auto Transformer and Single Phase Auto Transformer

SINGLE PHASE AND THREE PHASE AUTO TRANSFORMER

Auto Transformer can only be used where there is a need to reduce or raise the voltage, in cases where no isolation is required.

Auto transformers are smaller in size and lighter than isolated transformers. It is cheaper than auto transformers because of this feature.

It is produced as monophase or triphase according to need. Three-phase auto transformer is usually used in star / star connection group. However, it is sometimes used as a triangle / triangle..

In applications where the difference between the input voltage and the output voltage is more than 50%, there is no price advantage of the auto transformer. In this case it is much more advantageous to use isolated transformers.

Copper winding, CCA wire winding or Aluminum wire windings can be made. The production process is the same as for isolated transformers.

Auto Transformers are also more efficient then isolated transformer.The efficiency of the isolated transformer of the same power is 96%, while the efficiency of the auto transformer is around 98%.