Is is possible that the newer inverter welders do not create as much magnetic field as a transformer welder ? I have a Miller Multimatic 215, that weighs 36 lbs. Compared to my Hobart Beta MiG or my Lincoln Tig welder, which are very heavy
That is a really relevant and interesting question.
In a transformer welder the primary frequency is 60 hz. There are harmonics (multiples of the frequency) that are lower in strength, but they fall of quickly as the frequency rises.
In an inverter welder the 60 hz is still there, but now you have the inverter frequency (often around about 20,000 Hz).
I would think the electric and magnetic fields would be much different. Not smart enough to determine the real differences.
