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KOGD output reactor


Output AC reactor: Used for smoothing filtering, reducing transient voltage dv/dt, extending motor life, reducing motor noise, reducing eddy current losses, reducing leakage current caused by high-order harmonics in the output, and protecting the power switching devices inside the frequency converter.
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KIGD input reactor


Input AC reactor: It is a current-limiting device used on the input side of the drive to protect the AC drive from transient overvoltage. It has the functions of reducing surge and peak current, suppressing power grid harmonics, and improving the input current waveform.
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Sine wave filter


Sine wave filters are primarily used to address harmonic issues at the output end of a variable frequency drive (VFD). They convert the PWM wave output from the VFD into a sine wave, reducing the impact of the PWM pulse voltage, minimizing traveling wave reflections at the motor end, preventing motor insulation breakdown and cable rupture. Simultaneously, they enable long-distance transmission from the VFD.
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THDi filter


Device-level filters are products specially designed by lidar electric for power electronic equipment to reduce harmonics. They ensure that the harmonic currents generated by three-phase rectifier circuits meet national standards and improve the equipment's surge interference resistance. They are ideal for variable frequency drives, UPS, various power supplies, medium-frequency furnaces, and other power electronic equipment. The products themselves have a long service life and low losses, and are currently a domestic industry leader.
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