Ac Reactor Function

AC Reactors plays the following main roles in the circuit:

Anti-interference: In some AC circuits with higher working voltage, AC reactors can effectively prevent the high-order harmonics generated by electrical equipment from "polluting" the power grid. It is usually installed at the incoming line of the electrical equipment and achieves this function by winding a three-phase coil on a three-phase core.
Reducing the noise and eddy current loss of the motor: AC reactors can reduce the noise of the motor and the eddy current loss caused by high-order harmonics, thereby improving the operating efficiency and service life of the motor.
Smoothing filtering: It can also be used for smoothing filtering and reducing transient voltage dv/dt, which helps protect other components in the circuit and prolong the life of the motor.
Protecting the power switching devices inside the inverter: When connected to the power input end of the inverter, the AC reactor can protect the power switching devices inside the inverter and improve the reliability of the entire system.
Improving the power factor: AC reactors can also improve the power factor, especially in capacitive reactive power devices such as inverters. This effect is particularly obvious.
‌Reduce main power harmonics, surges and peak currents‌: For the industrial automation industry, the application of AC reactors at the input of the inverter can absorb the surge of the power grid and the operating overvoltage, thereby protecting the equipment behind the inverter and suppressing the inverter power frequency harmonic current‌.
‌Improve low-frequency conduction anti-interference‌: AC reactors can also improve low-frequency conduction anti-interference and ensure the stable operation of circuits in complex electromagnetic environments‌.
‌Prevent tripping caused by voltage spikes of the main power supply‌: It can effectively prevent tripping caused by voltage spikes of the main power supply and improve the stability of the power system4.
In summary, AC reactors have a wide range of applications and important roles in power systems and industrial control industries.