roller type servo voltage stabilizer
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Roller Type Servo Voltage Stabilizer

Roller type servo voltage stabilizers are auto wound transformers having single layer helical-coil mounted on a conventional laminated core. The transformer assembly used consists of self lubricating carbon rollers assembled on bakelite carrier boards that traverse the length of the coil track. The roller mechanism is driven by the servo motor which receives its signal from a voltage monitoring IC card on the output side of the servo stabilizer. In our regulator, we use heavy section of electrolytic rectangular copper strip instead of copper wire to minimize the losses and increase the efficiency of the equipment. Self lubricating carbon roller assemblies are used instead of ordinary carbon brushes which offers more reliability and trouble free performance of the equi.

nput Voltage Variation % Reduction in Breakdown Possible Approx. Power Saving Possible
Motor Load Below 30 HP. Lighting Load Motor Load Below 30 HP. Lighting Load
380-400 volts Nil Nil Nil Nil & Servo Stabilizer Required
380-420 volts 5% 10% 3% 5%
380-440 volts 10% 20% 5% 10%
360-460 volts 40% 40% 7% 20%
360-480 volts 60% 60% 10% 30%
320-500 volts 80% 80% 15% 37%


  • Superior insulation and windings
  • Suitable for indoor and outdoor installation
  • Motor draws 15 - 20% lesser current
  • Motor inside the controller can withstand the high current
  • Equipped with contractors, relays and switch gears
  • Reduction in unwanted loss of energy
  • 5 Years Guarantee
  • Protection of Electrical equipment
  • Improve power factor in situation of high voltage
  • First-rate efficiency with reduced MDI

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Rolling Contact Type Voltage controllers are catered to the below mentioned industries:

  • Distilleries & Beverages
  • Cement Plant
  • Cold Storage
  • Food processing Units
  • Pharmaceutical Units
  • Flour Mills Engineering Units
  • Rolling Mills
  • High Buildings Hospitals & Nursing Home etc
  • Paper Mills
  • Textile Mills
  • Rubber Industries