answersLogoWhite

0

It is Total Harmonic Distortion, and has to do with how "clean" the output power is.

For those of us in the lighting and electrical world, THD refers to the Harmonic

Distortion present with most electrical equipment, and more specifically now, the

distortion present with electronic ballasts. THD is the measurement of the distortion

created from the equipment's current draw. True resistive loads, such as an

incandescent light bulb, do not have THD. Equipment containing coils and

capacitors, such as motors, drives, fluorescent lighting and HID lighting, have some

measure of THD.

User Avatar

Wiki User

13y ago

What else can I help you with?