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Output AC reactor: Used for smoothing and filtering, reducing transient voltage dv/dt, extending motor life, lowering motor noise, minimizing eddy current losses, decreasing leakage currents caused by output higher-order harmonics, and protecting the power switching devices inside the inverter.
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Input AC reactor: a current-limiting device installed on the input side of the drive, protecting the AC drive from transient overvoltages. It reduces inrush and peak currents, suppresses grid harmonics, and improves the input current waveform.
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Sine wave filters are primarily used to address harmonic issues at the output of variable-frequency drives. They convert the PWM waveform generated by the drive into a sinusoidal waveform, thereby reducing the voltage spikes associated with PWM pulses, minimizing traveling-wave reflections at the motor terminals, and preventing insulation breakdown that could lead to cable rupture. Additionally, they enable long-distance transmission of the drive’s output.
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Equipment‑level filters are specialized products developed by Guangda Electric to mitigate harmonics at the input of power electronic equipment. They ensure that harmonic currents generated by three‑phase rectifier circuits comply with national standards and enhance the equipment’s immunity to surge disturbances. These filters are an ideal complementary solution for variable frequency drives, UPS systems, various types of power supplies, medium‑frequency furnaces, and other power electronic devices. With a long service life and low losses, they currently rank among the industry leaders in China.
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Guangdong Guangda Electric Co. Ltd.
Tel：18028173868
E-mail：gdgddq@126.com
Web：www.gd96.com
Add ：Building 3, No. 613, Xingtan Shuixiang Avenue, Gaozan Village, Xingtan Town, Shunde District, Foshan City, Guangdong Province