Servo controlled voltage regulation is most widely used method in voltage regulation. We manufacture more than 70 standart models from 1 kVA to 250 kVA single-phase , from 3 kVA to 750 kVA three-phase .

The voltage stabiliser basically consist of  a variable transformer a servo motor which controls variable transformer  through  a gear drive mechanism , a buck-boost transformer, electronic circuit  and sheet iron box  includes all. Servo controlled voltage regulator‘s operation is based on a feedback and comparison processes. Any voltage fluctuation in network can be easily stabilized with the help of high response capability and dc motor mechanism whichhave high start up torque, even if the variation is very little. Precision micro-switches are used as end limits for cut off the energy of motor when input voltage exceeds the regulation range. Output is sinewave  with no distortion, beside there is no distortion or interference in network frequency during operation.