Products

Dufew Electric Harmonic Filter is a customized power quality solution designed for VFD systems and nonlinear industrial loads affected by harmonic distortion. Installed at the VFD input side, it uses a tuned LC resonant circuit consisting of reactors, capacitors, and damping resistors to reduce characteristic harmonic currents such as the 5th, 7th, 11th, and 13th orders. As a professional harmonic mitigation solution provider, Dufew helps industrial customers improve power quality, reduce electrical stress, and maintain stable operation of power conversion systems.

Protect your motors with the Dufew Industrial Output Filter. Designed for VFD and servo drive systems, this motor-side solution attenuates dv/dt voltage spikes, PWM noise, and harmonics in long-distance cable applications. Dufew delivers low-leakage, fully customizable power quality filters for heavy-duty industrial compliance.

Dufew Electric Input Filter is designed for VFDs, servo drives, and industrial power systems to improve EMC performance. Installed at the power input side, it reduces conducted interference, suppresses common-mode and differential-mode noise, and protects electrical components from power disturbances. With a three-stage filtering structure, low leakage current design, and customizable specifications, Dufew provides reliable VFD Input Filter solutions for industrial automation and precision applications.

Upgrade drive reliability with the Dufew Industrial VFD DC Link Reactor. Designed for variable frequency drives and high-power conversion systems, it minimizes DC ripple current and thermal stress on capacitors under heavy dynamic loads. Dufew provides low-loss, DC bias-tolerant custom reactor solutions for demanding industrial applications.

Optimize cabinet space with the Dufew Slim Vertical DC Link Reactor. Designed for VFDs, servo drives, and industrial power conversion systems, this space-efficient DC reactor mitigates capacitor ripple stress and enhances drive reliability in compact enclosure setups. Dufew supplies customizable, heavy-duty reactor solutions tailored for elevators, cranes, and OEM drive panels.

Dufew Electric Horizontal DC Link Reactor is specially designed for VFD cabinets and industrial power conversion systems where installation height is limited. Installed in the DC bus circuit between the rectifier and inverter sections, it stabilizes DC current, reduces ripple stress on capacitors, and improves drive system reliability. With a low-profile horizontal magnetic structure, optimized airflow design, and flexible mounting configuration, this DC Bus Reactor provides an effective solution for compact control cabinets, mobile equipment, and space-restricted electrical systems.