Third harmonic filter

Third Harmonic Current in Neutral

Third Harmonic Current

Infirmness, anywhere in the neutral wire, conductor or terminal is a very serious Electrical Fire Risk. The degree of infirmness 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.