3 phase voltage stabilizer

Shuogong Power is a leading 3 phase voltage stabilizer manufacturer and supplier in China. We sell various types of 3 phase voltage regulators. Whether you need single-phase automatic voltage stabilizer, three phase automatic voltage stabilizer, three-phase high-precision automatic voltage stabilizer, we can meet your needs. Our 3 phase voltage stabilizers are available in rated capacities from 3KVA to 2000KVA at affordable prices. Suitable for various industrial and domestic use.

Automatic Voltage Stabilizer

3 phase voltage stabilizer Related Products

3 phase voltage stabilizer Parameters

Type 3 Phase voltage stabilizer
Capacity 3 kVA to 60KVA (The power capacity of voltage stabilizer needs to be 1.5~2 times greater than the load power)
Phase 3 Phase 4-line
Input Voltage Range ±15% tolerance for all standard output voltages above 380V.
±20% tolerance for required 380V output and all standard voltages below.
Output Voltage 3 phase 380V (Optional: 110V/ 120V/ 208V/ 220V/ 230V/ 240V/ 400V/ 415V/ 440V/ 460V/ 480V)
Output Accuracy ±2~4%/ ±1% (Optional)
* In case of output accuracy of +/- 2-4%, the voltage stabilizer will be servomotor based, and in case of output accuracy of +/- 1%, the voltage stabilizer would be SCR based.
Frequency 50Hz/60Hz
Current Type AC
Efficiency ≥95%
Response Time ≤1.5S
Ambient Temperature -15°C~+40°C
Cooling Method Naturally air cooled
Insulation Resistance ≥5MΩ
Electricalintensity Without breakdown and flashover phenomena at power frequency sine voltage 2000V for 1 min
Overload Capacity Overload current (%) Duration (min)
20 ≤60
40 ≤15
60 ≤5
Waveform Distortion Non-lack fidelity waveform
Protection Over-voltage, over-current, feed phases
Protection Grade IP 24
Warranty 24 months
Certificate CE
Model(VA) Size(mm) Weight(kg)
TNS-3KVA 48×34×17 25
TND-4.5KVA 48×34×17 30
TND-6KVA 36×28×68 40
TND-9KVA 38×32×78 50
TND-15KVA 44×36×78 70
TND-20KVA 52×40×86 130
TND-30KVA 49×46×107 145
TND-40KVA 49×46×107 180
TND-50KVA 64×57×118 195
TND-60KVA 64×57×118 215


Why Choose Us?

SHUOGONG is the best manufacturer of transformers and voltage regulators in China, you can choose standard transformer products or custom-made transformers and voltage regulators for special voltages.

Best Industry Leaders

A manufacturer of transformers and voltage regulators with 16 years of production experience.

Be your transformer factory

Accept special customization and OEM service.

Professional Certification

Strict quality management, through CE certification.

3 phase voltage stabilizer Buying Guide



If you want to skyrocket your 3 phase voltage stabilizer business, then this guide is for you.

It covers everything you need to know about a 3-phase voltage stabilizer, from how it works, assortment, price, advantages and more.

You’ll learn everything you need to know in this guide – let’s get started:

1. What is a 3 phase voltage stabilizer

The AC power we use is of single-phase and 3-phase types. Therefore, in practical applications, the voltage stabilizer also distinguishes between single-phase voltage stabilizer and 3-phase voltage stabilizer.

3 phase voltage stabilizer

The 3-phase voltage stabilizer is actually to connect the three voltage stabilizer units together with the “Y” connection method. Then use the control circuit board and the motor drive system to control the voltage stabilizer transformer to achieve the function of stabilizing the output voltage.

2. What are the types of 3 phase voltage stabilizer

At present, Shuogong Power only produces the following types of 3-phase voltage stabilizers:

  • Oil-immersed 3 phase voltage stabilizer
  • 3 phase high-precision automatic voltage stabilizer.

Oil-immersed 3-phase voltage stabilizer is suitable for equipment with infrequent voltage changes.

The high-precision 3-phase voltage stabilizer is suitable for equipment with frequent voltage changes and some high-value equipment, such as medical instruments.

Shuogong Power manufactures 3-phase automatic voltage stabilizers ranging from 3KVA to 2000KVA. Customized services for special requirements are also accepted. Please think of us as your transformer factory.

3. How a 3 phase voltage stabilizer works

The working principle of the 3-phase voltage stabilizer is to use the voltage regulation of the circuit and the control of the incoming current to control the circuit.


Generally, when the voltage input changes, the voltage regulator will conduct sampling comparison through the control circuit, and drive the rotation of the servo motor, thereby changing the position of the carbon brush of the voltage regulator, and automatically adjusting the coil to make the output voltage more stable, so that the electrical appliance can be used normally under the condition of unstable voltage.

4. 3 phase voltage stabilizer application range

A 3-phase regulator is a device that stabilizes the output voltage. Mainly used for 3-phase voltage stabilization and regulation.

A voltage stabilizer is a power supply circuit or power supply equipment that can automatically adjust the output voltage. Its function is to stabilize the power supply voltage that fluctuates greatly and does not meet the requirements of electrical equipment within its set value range, so that various circuits or electrical equipment can be stabilized. It can work normally under the rated working voltage.

Therefore, the use of voltage regulators is essential for electrical equipment, especially high-tech and precision equipment with strict voltage requirements.

5. What are the advantages of 3 phase automatic voltage stabilizer

The original power regulators relied on the beating of relays to stabilize the voltage.

When the grid voltage fluctuates, the automatic correction circuit of the power regulator is activated to make the internal relay operate. Forcing the output voltage to remain near the set value, the advantage of this circuit is that the circuit is simple, but the disadvantage is that the voltage regulation accuracy is not high, and every time the relay jumps and shifts, it will cause an instantaneous interruption of the power supply and spark interference.

The 3-phase voltage stabilizer solves the above problem. Able to keep the voltage within a reasonable range of settings during frequent changes. Protect your device from damage.

6. 3 phase voltage stabilizer price list

Below I have listed the market prices of some commonly used 3-phase voltage stabilizers. for reference only.

This price does not represent the price of Shuogong 3-phase voltage stabilizer. If you want to know the price of our 3-phase voltage stabilizer, you can contact us through the form next to it.

Items Price Input Voltage Output Voltage
8KVA 3 phase voltage stabilizer
$1,844.26 304V-456V 380V
15KVA 3 phase voltage stabilizer
$2,712.31 380V±20% 380V
20KVA 3 phase voltage stabilizer price $3,110.16 304V-456V 380V
30KVA 3 phase voltage stabilizer price $4,963.05 304V-456V 380V
40KVA 3 phase voltage stabilizer price $6,080.49 304V-456V 380V

7. How to choose 3-phase voltage stabilizer manufacturers and suppliers?

We all know that there are many 3-phase vvoltage stabilizer manufacturers and suppliers in the world, so how should we choose?

First of all, you have to consider the technical level of the 3-phase voltage stabilizer manufacturer, whether it has strong research and development capabilities, and whether it can meet your needs, especially some special voltages.

Secondly, the cost of the 3-phase voltage stabilizer should be considered, including the price of the 3-phase voltage stabilizer and the transportation cost of the 3-phase voltage stabilizer.

In addition, the after-sales service of the 3-phase regulator should also be considered. Although the probability of problems with 3-phase regulators is relatively low, we still have to consider this problem. What are the aftermarket capabilities of 3-phase voltage stabilizer manufacturers and suppliers? Can you provide return service? These are very important.

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