Interesting Facts to know about various Voltage Stabilizers.

The power supply required for the functioning of all our electronic devices is not always supplied at a constant rate to our houses. Especially in our country, the power supply is a lot of erratic and unstable, and the voltage stabilizers have gained greater importance as they are designed to perform the task to protect our electrical appliances against a wide range of voltage fluctuations. To provide this facility we have a huge number of servo voltage stabilizer manufacturers in India who are engaged in fabricating, supplying, exporting a variety of stabilizers to the users. Thus the voltage stabilizers help in preventing the sudden and undesirable accidents which may cause due to the uneven power supply.

If you are planning to buy a standard voltage stabilizer then the best option to choose from several servo voltage stabilizer manufacturers in India is precious power technologies Pvt Ltd. The precious power facilitates the customers with their peerless power quality management solutions and recognized as the best voltage stabilizer manufacturer in Pune/India. We offer a vast range of various products that help to handle the voltage drops and heavy currents in any situations. We are the looming voltage stabilizer manufacturer in Pune/India, and as well as other products suppliers like transformers, UPS systems, LT panels, power savers and conditioners and etc, who are well-known for their matchless services in solving any kind of power and voltage issues. Let’s see various types of voltage stabilizers and some of their interesting facts.

The voltage stabilizers from the servo voltage stabilizer manufacturers in India regulate the fluctuating input voltage supply which comes from the power suppliers before feeding it to the load. Simply, it balances the voltage levels as per the equipment specifications.  

The voltage stabilizers are broadly classified into three types, and they are:

  • Relay Type voltage stabilizers
  • Servo controlled voltage stabilizers
  • Static voltage stabilizers.

Relay Type voltage stabilizers

In this type, the switching relays are present which are used to connect the secondary transformers in various configurations to carry out the buck and boost that means increase or decrease of voltage levels function.

They enable voltage correction in steps of 20 volts. In this only the air-cooled model is available. They can give up to ±10 % of voltage accuracy.

Servo controlled voltage stabilizers

These type of voltage stabilizers achieve voltage stabilization with the help of servo motor. Since the presence of servo motor in the closed loop systems makes it as servo controlled voltage stabilizers. The voltage stabilization is done by comparing the incoming voltage levels and adjusting as per the equipment necessary voltage to operate at ideal conditions.

The servo controlled voltage stabilizers are divided into two types like air-cooled servo voltage stabilizer and oil-cooled models by considering the type of lubricant used in the stabilizer. And further divided into three types and they are:

  • Single phase servo controlled voltage stabilizers- oil-cooled/air-cooled servo voltage stabilizer
  • Three phase servo controlled voltage stabilizers-balanced type for example servo controlled voltage stabilizer 3 phase oil cooled
  • Three phase servo controlled voltage stabilizers-unbalanced type.

In each type two types are available and they are like single phase air cooled servo voltage stabilizer, servo controlled voltage stabilizer 3 phase oil cooled and etc.

Both the stabilizers work on the same working principle that is adjusting the voltage and regulating the required output. The single phase air cooled servo voltage stabilizer operates on coiling the air as coolant, uses lovers in it, cannot handle heavy loads and can heat up in summer whereas in servo controlled voltage stabilizer 3 phase oil cooled, it uses oil for coiling, and capillaries for rotating the oil around the motor to enable the cooling action. And it can adjust heavy loads in summer also.


Precious Power’s servo motors are uniquely designed to handle a wide range of voltage variations irrespective of power factor. We the servo voltage stabilizer manufacturers in India/Pune have been consistent in delivering the top-quality, durable, high standard voltage stabilizers along with other equipment. Our automatic voltage stabilizers provide uninterrupted power supply by performing the buck (decrease) and boost (increase) functions. Our voltage stabilizer units facilitate quick response and correction speed, and they give optimum electronic overload protection.


Phone: +91 703 018 7187

Email :[email protected]



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