We undertake the fabrication of a large assortment of variable auto transformers -open type utilizing premium grade material, components, and technology. The variable transformers impart an adjustable output voltage where constant regulation of AC Voltages with load is required. These transformers’ range vary from 2 amps to 300 amps in single coil and above 300 amps with ganged coil,  and we also develop auto transformer upto 60 amps both in oil cooled and air cooled models and above 60 amps in oil cooled type only. The normal output range is 0 to 270 volt in single phase and 0 to 470 volt in two and three phases. 

We supply higher output voltage transformers in single, two or phase according to customer’s requirements with properties like motorization, ammeter, etc. The entire range of variable auto transformers are tested as per IS 5142. Our large array of variable auto transformer -open type is ideal for educational institutions with all terminations setup outside. We make these variable auto transformers – open type available at industry-competitive rates for the customers. 

We fabricate and supply all types of variable auto transformer –box type along with powder coated metal enclosure. These types of transformers are suitable for testing labs and educational institutions with entire terminations to be outside. Our box type transformers are manufactured from 2 amps to 300 amps in single coil and above 300 amps with ganged coil. We even develop upto 60 amps in oil air cooled and air cooled models and above 60 amps are only manufactured in oil cooled models. The normal output range comprises of 0 to 270 volt single phase auto transformer and 0 to 470 volt two and three phase auto transformers. 

Furthermore, we have the facility of supplying higher output voltage transformers according to customer’s needs such as Ammeter, Voltmeter, Motorization and Enclosure. 

We manufacture and supply variable motorized auto transformers. These transformers provide different sweep time for controlling speed through gears. Developed for heavy duty trouble free operations, entire components of auto transformersare fabricated for giving maximum life to the unit functioning under intense operating conditions. When repeated over loading occurs, immense care has to be taken for ensuring that adequate off time is imparted for reducing the buildup temperature. As voltage in between turns is smaller and as the brush arm is in continuous contact with more than one turn, the harmful sparking is prevented and output voltage can easily be set to fraction of a volt from zero onwards by rotation of the knob or the synchronized motor. Best copper, core selections and finest design assures user of low watt loss, in a comparison to other manufacturers. Motorized auto transformer provides an output voltage wave which is faithful to the voltage wave forms.

Furthermore, we even impart higher output voltage transformer with several features like voltmeter, motorization, ammeter, and enclosure according to client’s specifications and requisites.