What is a single phase automatic voltage switcher (AVS)

AVS stands for automatic voltage switcher, an automatic voltage switching protector for single-phase power systems. Its main function is to protect single-phase electrical equipment from damage caused by voltage fluctuations (such as too high, too low, or unstable).

Working principle of automatic voltage switcher:

＞＞ Voltage monitoring: 

The AVS protector continuously monitors the voltage entering the device to ensure that it is within the specified safety range.

＞＞ Over/under voltage protection: 

When the voltage exceeds the safe working range, the AVS protector automatically disconnects the power supply to prevent the abnormal voltage from damaging the electrical appliance.

＞＞ Automatic recovery: 

When the voltage returns to the normal range, the AVS protector will automatically reconnect the power supply to ensure that the equipment continues to operate normally.

＞＞ Delay function: 

Many AVS protectors have a delayed start function to avoid unnecessary switching actions caused by frequent voltage fluctuations. After the voltage returns to normal, there will be a certain time delay before the power is turned on.

Main functions of Automatic Voltage Switching:

＞＞ Overvoltage protection: 

When the voltage exceeds the set maximum value, the protector will cut off the power supply to prevent electrical equipment from burning out due to excessive voltage.

＞＞ Undervoltage protection: 

When the voltage is lower than the set minimum value, the protector will automatically cut off the power to prevent the appliance from being damaged due to low-voltage operation.

＞＞ Delayed start: 

The protector usually has a delayed start function, that is, after the voltage returns to normal, it will delay for a while before re-supplying the power to prevent the voltage from fluctuating repeatedly in a short period.

＞＞ Automatic connection after voltage recovery: 

When the voltage returns to a safe range, the AVS protector will automatically connect the power supply and the device will resume operation.

Automatic Voltage Switches Application scenarios:

＞＞ Home appliance protection: 

such as air conditioners, refrigerators, TVs, washing machines, and other home appliances.

＞＞ Office equipment protection: 

computers, printers, and other equipment, especially precision electronic equipment.

Automatic Voltage Switches Advantages:

＞＞Extend equipment life: 

By protecting the equipment from abnormal voltage, the AVS protector can effectively extend the service life of the appliance.

＞＞Prevent equipment damage: 

It can avoid damage to the internal components of the appliance caused by excessively high or low voltage.

＞＞High reliability: 

For areas with large voltage fluctuations, the AVS protector is an essential tool to ensure the normal operation of the equipment.

Automatic Voltage Switches Common application examples:

＞＞ Home air conditioning system:

In places with large voltage fluctuations, installing an AVS protector can effectively prevent the air conditioner from being damaged due to abnormal voltage.

＞＞ Areas with unstable power supply:

For areas where voltage fluctuates frequently, AVS protectors can provide effective voltage stability protection.

Automatic Voltage Switches Summary:

Single Phase AVS Protector is a voltage protection device designed for single-phase electrical equipment. It can effectively protect equipment from voltage fluctuations and is particularly suitable for home and industrial equipment. By automatically monitoring and controlling voltage, it ensures that the equipment operates at normal voltage, thereby improving the safety and durability of the equipment.