3 phase voltage stabilizer: how voltage stabilizer works

Principle of voltage stabilizer

 

 

With the continuous improvement of living conditions, more electricity is used at home now, and I am afraid that it will not be able to withstand frequent trips, so every home needs to install a voltage stabilizer. This will not cause damage to home appliances, so what is the working principle of the voltage stabilizer? I think everyone does not understand this, how should we choose a suitable voltage stabilizer? Now let's take a look.

 

 

A voltage stabilizer is a device that stabilizes the output voltage. The voltage stabilizer is composed of a voltage regulating circuit, a control circuit, and a servo motor. When the input voltage or load changes, the control circuit performs sampling, comparison and amplification, and then drives the servo motor to rotate, so that the position of the carbon brush of the voltage regulator changes, and the coil turns ratio is automatically adjusted to maintain the stability of the output voltage.

 

 

How the voltage stabilizer works

 

 

Since some electrical appliances contain coil components, eddy currents that hinder the current will be generated at the initial stage of power-on. The generation of eddy currents will not only weaken the instantaneous voltage when the electrical appliances are started, resulting in slow startup, but also strengthen the instantaneous voltage generated after the circuit is broken, which may cause spark damage. circuit. At this point, a voltage stabilizer is needed to protect the normal operation of the circuit.

 

 

 

 

 

The voltage stabilizer is composed of a voltage regulator circuit, a control circuit, and a servo motor. When the input voltage or load changes, the control circuit performs sampling, comparison, and amplification, and then drives the servo motor to rotate, so that the position of the voltage regulator carbon brush changes. The coil turns ratio is automatically adjusted to keep the output voltage stable. The voltage stabilizer with larger capacity also works on the principle of voltage compensation.

 

 

The role of voltage stabilizer

 

 

1. Protecting precision instruments with high voltage requirements;

 

 

2. The experimental equipment (assay equipment) j of the laboratory (laboratory) with a higher standard is equipped with a voltage stabilizer to ensure the precision level (accuracy) of the experimental (assay) data; v

 

3. Key equipment in hospitals, national defense, factories, schools, finance and other departments are equipped with voltage stabilizers to ensure the stability and safety of equipment operation. In short, key departments in various industries apply voltage stabilizers to their key electrical equipment.

 

 

Safety precautions for voltage stabilizer

 

 

⒈ When the regulated power supply is powered on, please do not disassemble the regulated power supply or pull the input and output wiring of the regulated power supply at will to prevent electric shock or other electrical safety accidents.

 

 

 

⒉ The input and output wiring of the regulated power supply must be arranged reasonably to prevent the trampling and abrasion, resulting in leakage accidents.

 

 

3. The regulated power supply must be grounded reliably. The user is responsible for the electric shock or personal injury caused by the operation of the ungrounded wire.

 

 

⒋The ground wire of the regulated power supply cannot be connected to public facilities such as heating pipes, water supply pipes, gas pipes, etc., so as not to infringe the rights of third parties or cause harm.

 

 

⒌The input and output wiring of the regulated power supply should be checked regularly to avoid loosening or falling off, thus affecting the normal use of the regulated power supply and the safety of electricity consumption.

 

 

⒍The selection of the cable of the voltage stabilizer must meet the requirements of the cable that can carry enough current capacity.

 

 

⒎. The voltage stabilizer should be handled with care and avoid violent vibration during work.

 

 

⒏. Ensure that the carbon brush spring of the voltage stabilizer has enough pressure to avoid flashover between the carbon brush and the coil contact surface.

 

 

⒐. Non-professionals, please do not disassemble the regulated power supply or repair the regulated power supply.

 

 

How to choose a voltage stabilizer

 

 

1. It can stabilize the voltage of low voltage 125V-165V or high voltage 250V-270V between 200-230V, so that household appliances can work normally;

 

 

2. When the input voltage is higher than 255-275V or lower than 125-160V, the power supply can be automatically cut off;

 

 

3. When there is a sudden call after a power failure, the output power can be started after a delay of 5-8 minutes to avoid damage to the electrical appliance due to excessive voltage. When purchasing a home voltage stabilizer, you must pay attention to whether the above three basic functions are complete or not.