Introduction

We design and manufacture a wide range of variable voltage supplies from 0-11 kV or any desired voltage up to 5000 kVA. These variable voltage supplies are used for special purpose applications as well as testing.

Advantages

• Automatic overload protection.
• Externally adjustable maximum output current
• Special circuits protection for equipment
• Easy current limiting adjustment.

Our A.C. Variable supply equipment cosists of linear (Vertical) type Stepless On Load Rolling Contact Voltage Regulator along with a Series transformer (Double wound Transformer). The main load current passes through the series transformer and the voltage is regulated with the help of ± type voltage regulators, wound with heavy section of copper strip and fitted with carbon rollers.

Our equipments are designed for 100% continuous duty cycle and it can withstand 100% overloading for half and hour and 20 times short circuit current for short duration of time.