The operation of electric equipment of any type is not as simple as transferring power from a source to the equipment. In fact, there are many different design features that are added to electric devices to ensure they continue to operate effectively and efficiently.
The Basics of Harmonic Problems
One problem that can occur in any type of appliance or electric device is the change of the voltage or current during the operation of the equipment. This occurs when the equipment draws the current in a non-linear load or when the draw on the electrical system is in short bursts or pulses. When this happens, harmonics occur, which are currents or voltages that have different frequencies.
Harmonics in an electric motor or other types of devices, including semiconductors, result in damage to the system components. In some devices, it can also lead to interference and problems in operating systems, particularly computers, networks, and communication devices and systems.
Adding Electrical Harmonics Filters
There are different designs for electrical harmonics filters, but they generally include capacitors, resistors, and inductors that remove or stop specific frequencies from moving through the filter. The result is a better quality power that flows from the output of the filter.
Depending on the specific requirements for a home, commercial, or industrial building, the electrical harmonics filters can be passive or active in design and function. A hybrid option is also typically used when highly sensitive or industrial types of equipment need to be protected.
