V.B. Powernet Autotransformer is a continuous on a single winding transformer coils act as a primary and secondary voltage. They are linked together or interconnected into one to produce different voltages. It has the usual magnetic core but much lesser in volume. V.B. Powernet Autotransformer is more economical and physical smaller in terms of weight and dimensions than two windings transformer.

It is commonly use for loads like motor compressor, lighting, or other loads not required special transformer and configuration.