DC or AC motor drivers, UPS, overall power transistors using systems before connection point create conciderably harmonic distortions, noices, DC motor's units causes motor side  distortionary signals such as high rate ripple.

All this stiuations effect drivers and other controll equipments negatively, in order to eleminate this distortionary signal's negative effects inputs and outputs reactors must be installed. It is depiced below that transition of wave form for reactor installed and uninstalled situations. Negative situations caused by harmonics are;

-Electronic board damages
-Motor problems
-Decrasing lifespan for electrical equipments

In order to eleminate negative effects of harmonics driver reactor must be used for;

- Reduce harmonics
- Prevent notches, ripples and noices occured on wave form
- Protect driver from high voltage by providing voltage drop
- Prolong system lifespan