We offer a wide range of Servo Voltage Stabilizer, that uses an advanced electronic servo-motor concept to control a motorized variable transformer. Because of the motorization, there is a small delay in voltage correction. These are not affected unduly by power factor or frequency variation. This type of technology tends to large three phase applications. They are also able to withstand large inrush currents, normally experienced with inductive loads. However due to the mechanics of this type of stabilizer, periodic maintenance is required.There are many variations of the Servo Voltage Stablizer that can be used in many applications. The standard servo voltage stablizer is very powerful and has a variety of uses. This device works by converting AC voltage into DC voltage. The high amperage system is used in some areas where there is a lot of electric power use and other areas where there is a need for lower amperage use. The low amperage system can be used where there is a need for very low amperage or where very low amperage is not an option.
Another type of model is the Constant Current Stablizer which has a design that allows it to handle more amps but at the same time has a very low round trip efficiency. In a three phase or single-phase system, this device has an effect on an energy converter so that the efficiency can be increased. There are also devices that have been designed that allows the increase in efficiency that can also be used with these devices.
The three-phase device works by using one input supply and using that to supply the alternating current to the three-phase converter and then to the output load. This allows a lower efficiency and thus reduces the cost of the device. The three-phase stabilizer is an example of a device that is one of the best values for this application. It is one of the most popular types of volt converters that are used in many applications and is a very strong model that can handle a lot of amperage that is needed


  • Maintain accuracy
  • Line to line/neutral balance
  • Input voltage balance
  • Load balance at any power factor

Technical Specifications :

  • Input voltage : 207 V to 480 V
  • Output voltage : 415 V +/- 1 %
  • Output voltage accuracy : ± 1%
  • Output voltage ( settable limits) : 220V – 240V
  • Input voltage changes up to : ± 50%
  • Input Voltage Range : 90,100,110,140,170,160 – 270(275V – 465V)
  • Input Frequency : 47 Hz – 53 Hz
  • Correction Rate : 35 V / Sec
  • Insulation : Class “F”
  • Efficiency : 98%
  • Effect of the load power factor : Nil
  • Capacity : As customer's requred KVA
  • Ambient Temperature : 0 – 55 Dg/C Controls
  • Made: Nelson
servo stabilizers

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