Input reactors connected between the power supply and the inverter can limit voltage surges and overvoltage spikes in the power grid, effectively protecting the inverter and improving its power factor. They also suppress harmonic currents entering the power grid from the inverter, featuring reduced motor noise and eddy current losses.
Product Overview:
Input reactors reduce high-order harmonics, used for smoothing filters to decrease transient voltages and prolong motor life. They protect the power switch devices within the variable frequency inverter, which is suitable for power supplies that have a significant interference (interference, overvoltage) on other equipment. The voltage unbalance between phases of the power supply is less than 1.8% of the rated voltage, and the impedance of the lines is very low (the power transformer is over 10 times the rated value of the inverter).
Application Purpose:
Inverter drives and speed controllers often suffer from surges in current and voltage during operation, which can severely damage their performance and lifespan. Therefore, an input reactor should be installed in front of them to suppress surge voltages and currents, protect the drives and controllers, and extend their lifespan while preventing harmonic interference. Since inverter drives and speed controllers use variable frequency tuning, they often generate higher-order harmonics and waveform distortions during tuning, which can affect the normal operation of the equipment. To address this, an incoming line reactor should be installed at the input to improve the power factor of the inverter and suppress harmonic currents, filter out harmonic voltages and currents, and enhance the quality of the power grid.
Product Features:
1. Power sources cause significant interference to other devices (interference, overvoltage).
2. Phase-to-phase voltage imbalance exceeds 1.8% of the rated voltage.
3. Low-impedance lines (power transformers exceeding 10 times the rated value of the inverter)
A large number of variable-frequency drives installed on a single line to reduce the line current.
5. Utilize inductive reactors for capacitive or power factor correction units using the power factor (cosφ) correction.
