Third harmonic filter

Third Harmonic Current in Neutral

Third Harmonic Current

Infirmness in Neutral Wire with Third Harmonic Current is a serious Electrical Fire Risk. Its degree determines how soon the electrical fire would ignite. Computer, SMPS power supplies, Single Phase UPS and Electronic devices, and LED lighting create triplen harmonic current, also known as third harmonic or zero sequence harmonic; which unlike the normal current and also the industrial harmonic currents, do not get cancelled at neutral but get added and triple at neutral.