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Variable Transformers

These kind of transformers are used for testing applications where variable output is required from 0 to any voltage. These kind of transformers are widely used in transformer / motor / generator manufacturing units to perform various electrical tests.

The construction of these variable transformers is very simple & consists of Buck/Boost Double Wound Transformer and +/- Type linear rolling contact regulator for stepless control. Variable transformers are widely available upto 10 MVA

Variable Auto Transformers