Three phase voltage stabilizer.

Three phase voltage stabilizer.
Three phase voltage stabilizer. 4

3 phase voltage stabilizers.

You can classify voltage stabilizers based on their operating phase as well. Hence, there are single-phase voltage stabilizers and three phase voltage stabilizers. Both these are automatic voltage regulators. However, you should pick the right one out of them, depending on the application.

Let’s learn more about three phase stabilizers and what they are capable of delivering. 3 phase servo stabilizers are often used in industrial applications. In contrast, static 3 phase regulators are preferred for the IT, telecom, and broadcast industry.

Significance of three phase stabilizers.

There are no differences between the two when it comes to purpose. The objective of both devices is to offer contact voltage at its output. However, the distinguishing factor is the method of achieving The main functionality of a three phase voltage regulator is to regulate AC voltage. Many industrial loads need a 3 phase power supply. It can function in automatic mode and stabilize AC voltage throughout. When there are changes in the supply network voltage, you will be able to overcome the adverse effects caused by those fluctuations by using this kind of 3 phase voltage stabilizer.

These units are available with servo motor controlled and IGBT static control mechanisms. Three phase servo voltage stabilizers should have separate control for each phase. It will make fast voltage correction. As an option, based on the requirement, we need to opt for phase reverse correction and surge protector.

Benefits of a three phase voltage regulators.

When you compare a single phase with a three phase voltage stabilizer, you can expect to receive numerous prominent benefits. For example, three voltage stabilizers are in a position to deliver a high efficiency to you. On top of that, a three phase regulator will be highly effective when managing a larger capacity.

They don’t provide a negative experience to you with waveform distortion. Moreover, they can deliver a stable voltage regulation to you at all times. Upon adding a load, you can expect the voltage stabilizers to withstand instant overload as well.

Three phase voltage regulators.
Three phase voltage stabilizer. 5

The 3 phase voltage regulators are ideal for long-term work as they can function continuously and deliver intended results to you. They are also having an automatic manual switch, which you can trigger based on your requirements. One of the most impressive facts about these voltage regulators is the over-voltage protection they deliver. Hence, you can expect to receive automatic protection against mechanical faults and phase sequences.

The three phase servo voltage stabilizers are small in size. They have a lightweight design. You can go ahead and install the voltage regulator at your industrial facility without going through any challenges. Upon completing the installation, you can expect the voltage stabilizer to deliver a reliable operation to you.

How does a three phase voltage stabilizer work?

A three phase voltage stabilizer is the combination of three single-phase systems. Every phase has its servo motor, controller, buck and boost transformer, and variac. Hence, an independent phase-controlled unit has a 1 phase servo stabilizer mechanism in each phase.

When you start the unit, the corresponding phase controller will measure the input voltage and operate a servo motor to change the number of turns of the variac coil. As a result, it will add or subtracts the voltage to keep the output voltage of that phase stable.

How 3 phase servo voltage stabilizers works
Three phase voltage stabilizer. 6

Thus, when all phases work similarly, we get a regulated voltage at the output of the three-phase voltage regulator. The voltage regulator comprises several components, including a voltage regulating circuit, a control circuit, and a servo motor. When the input voltage or load changes, the control circuit samples, compares, and amplifies the data before driving the servo motor to spin, changing the location of the regulator’s carbon brush, and automatically adjusting the coil turn ratio to maintain the output voltage stability. The voltage regulator also uses voltage compensation with a greater capacity.

Why do we need a 3 phase servo voltage stabilizer?

For commercial use, utility companies offer three-phase supply to balance load and improve power factor. Also, almost all industrial machines like high capacity motors, CNC machines, generators are designed with an 3 phase supply. Commercial sites prefer to place three-phase voltage stabilizer at the utility supply point to ensure stable power for the whole facility.

A three-phase voltage stabilizer is a power supply circuit or piece of power supply equipment that automatically regulates the output voltage. Its purpose is to stabilize the power supply voltage, which varies considerably and cannot satisfy the needs of electrical equipment within its specified value range. All types of circuits and electrical equipment may generally operate within the rated operating voltage.

The pulsing of the relay stabilized the voltage in the original power regulators. The power regulator’s automatic correction circuit is engaged when the grid voltage varies, prompting the internal relay to work. This circuit has the benefit of being simple. Still, it has the disadvantage of poor voltage stability precision, and every – second relay jump shift, the power supply will experience – second instantaneous interruption and spark interference.

This is a significant interference to computer equipment reading and writing operations, and it is easy to produce computer error signals and catastrophic hard disk damage. The small voltage regulator is of excellent quality, most of which utilize the motor drag carbon brush technique to stabilize the voltage, the voltage regulator on the electrical equipment created minimal interference and has a reasonably high voltage stabilization accuracy.

Applications of three phase voltage stabilizer.

You can discover multiple applications behind a three phase voltage stabilizer. Some of the most common applications associated with these voltage stabilizers include telecommunications, transportation, CNC machine tool, injection molding, and electric motor protection in industrial environments. When it comes to industrial applications, you will not survive with a single phase voltage stabilizer. Hence, it is a must for you to proceed with using a three phase voltage regulator.

It is even possible to see three phase servo stabilizers in hospitals. That’s because these systems can deliver the protection required by medical equipment such as CT machines. Moreover, these voltage stabilizers are ideal for different types of elevators, which are supporting special motors.

It would help if you kept a few things in mind when getting a three phase servo voltage regulator for industrial applications. Because the regulator must resist the surge impact of the power and the inductive load of the beginning shock, it is suggested that you acquire at least three times the actual power of the stabilizer. You will also need to get the help of an expert to proceed with the installation process.

Engineers and technicians and factory professional electricians use the following power algorithm in professional water and electricity installations: –

  • The sizing of three phase voltage stabilizer needs to be done.
  • It should be position in a dry room that does not have direct sunlight.
  • Three phase voltage regulator should be placed in a dust-free environment with low humidity.
  • At the input of the unit, an isolator should be install.

Ctrltech regulator footer logo

CtrlTech is a Leading voltage stabilizer manufacture with a client base all across the Middle Eastern countries. Cutting edge servo and static voltage regulators for every application. Contact us for a free site study.




World Voltage Map




Control Technologies (FZE)

PO Box 122271, SAIF Zone,
Sharjah, UAE.

T: +971 6 5489626
M: +971 50 1537113