Servo stabilizer

Production process about relay type of automatic voltage regulator

Company Profile

Our factory was established in 1988 and has rich industry experience. It mainly develops, produces and sells voltage stabilizers (relay type voltage stabilizers, servo type voltage stabilizers, including single phase voltage stabilizers, three phase servo type 380v voltage stabilizers and compensation Power stabilizer), specially developed for the mechanical equipment of printing, machine tool, medical, laser, textile, processing center and other industries, power strips (socket types cover Europe, America, UK, and Asian markets), conversion Socket (professional for the European market).

Automatic voltage regulator

WLE Series of voltage stabilizer

Relay type of AVR


What is relay control voltage stabilizer?​

The line control voltage regulator adjusts the voltage circuit to balance the output voltage by closing the relay.

voltage stabilizer


What is servo control voltage stabilizer?

The servo voltage regulator is a power supply device that uses the voltage or current signal sampled by the servo motor control circuit to drive the micro motor.

What is the name of servo voltage stabilizer?

It stands for Servo control voltage stabilizer, referred to as servo stabilizer. It is a machine that relies on the control of a servo motor to stabilize the voltage. It converts the input unstable voltage to output a stable voltage for use by electrical appliances.

What is servo control voltage stabilizer?

Servo control voltage stabilizer is a product that can control a certain range of input voltage and convert it to a stable voltage. Its working principle is: the servo motor drives the carbon brush head to rotate on the pressure regulating package, adjust the position to change the turns ratio of the transformer coil, so as to adjust the voltage and stabilize the voltage output.

Which one is best?

Regarding which one is the best, it depends on the power of your equipment and the scene you use. If you need a voltage stabilizer in your home, office, etc., a relay-type voltage stabilizer is enough for you to use. If it is an industrial or medical scene, you must select the servo type.

Is servo voltage stabilizer is used for?

It can convert the input unstable voltage to output a stable voltage for electrical appliances such as refrigerators, air conditioners, TVs and so on. If the electrical appliance is working under unstable voltage for a long time, it will be difficult to work normally for a long time, and the hardware may be damaged.Servo voltage stabilizer can make the electrical appliances work stably and protect the electrical appliances to a certain extent.

How to install a voltage stabilizer?


Connect the input of the voltage stabilizer to the power distribution board, and install a fuse that meets the power guarantee rate of the instrument on the user power distribution board to ensure the safety of electricity use.


Connect the power supply of the electrical equipment to the output terminal of the instrument. Note that the rated input voltage of the electrical equipment should be consistent with the output of the voltage stabilizer, and do not connect it wrongly.


Turn on the power switch of the voltage stabilizer first, and the working indicator light is on. Observe whether the indicated value of the voltmeter is normal. When the output voltage is normal, turn on the power switch of the electrical equipment, and the voltage stabilizer can automatically adjust the voltage and supply power normally.


When the electrical equipment is not used for a long time, please turn off the power switch of the electrical equipment to reduce power consumption and prolong the service life of the voltage stabilizer.


The voltage stabilizer shall not be overloaded. When the mains voltage is low, the output capacity is reduced, and the load of the voltage regulator should be reduced accordingly.


When choosing electrical appliances such as refrigerators, air conditioners, water pumps and other equipment with motor running, a voltage stabilizer with a capacity of more than 3 times should be selected.

In order to avoid the equipment starting current exceeding the voltage stabilizer fuse current or the overcurrent protection circuit breaker current, the voltage stabilizer fuse is blown or the circuit breaker is tripped or the voltage drop is too large to work.


The wire connected to the voltage stabilizer should have enough surface to prevent heat generation and reduce voltage drop. Voltage stabilizers with a capacity of more than 2KVA are connected by terminals. A single copper wire should be used, and the terminal screws should be tightened as much as possible to prevent the connection from heating.


Whether it is a single-phase or three-phase voltage stabilizer, after all the input and output lines are connected, the power switch of the load should be turned off first, then the voltage stabilizer should be turned on, and the power switch of the load should be turned on after checking that the output voltage is normal.

Notes on using the voltage stabilizer:

1. Do not use excessive load;

2. Please use enough wires;

3. Please be careful to connect the input voltage and the output of the equipment;

4. The output voltage of the equipment and the voltage stabilizer should be unified;

5. Please select the input voltage switch and power supply voltage as well;

6. If the fuse is burned out, please check the load equipment;

7. Use a fuse with the same rating, and cannot use a non-rated fuse or wire;

8. Install in a dry and ventilated place.

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