Linear Type Voltage Regulator

We are manufacturing, exporting, distributing and supplying of Linear Type Voltage Regulator in Ludhiana, Punjab, India.
The voltage regulator is a continuously tapped auto transformer with core and coils similar to those of an orthodox transformer. A mainframe supporting the completely insulated coils and is housed in an oil cooled sheet steel tank.
Carbon Rollers move on both sides of the winding, in opposite direction, to increase or decrease the incoming voltage. The effect is to produce a variable voltage of either negative or positive polarity, which is injected into the buck boost double wound transformer.
The contact carrier is driven by a fractional horse power high torque motor which is coupled to the chain drive. Limit Switches operated by the carrier are fitted, to prevent overrun.