Inverter

The out put current varies with the sizes of the machine. Any where's for 6amp's to 750
amps. There are two types of welding power source's. transformer and inverter machines. The transformer machine converts primary line voltage and current (at 60 hrz) to weld voltage and current. Because of various losses in the transformer at 60 hrz, they have a higher power draw on primary line. The inverter takes the primary line voltage/current and converts it to dc voltege/current. Then charges a capacitor bank. It discharges this bank through the primary of a transformer at a higher frequency ( at 8 to 12 khrz ). This results in lower power losses in the transformer. This enables the inverter to operate with the same out put but draw a lower current form the primary line power. Usually approximately 1/2 the current draw for the same current out put.

Dear Guest, very nice answer, but please be so kind as to check your spelling etc before saving as there are many people reading these postings who do not have English as a first language.

If you are also one of these who do not have English as a first language, then please be so kind as to use the spelling checker built into CR4, thank you. (English is my first language and I still use it anyway....!)

By the way, Hertz or Frequency should be written in the short form as "Hz"....

Following these suggestions means that more people around the world can read your otherwise excellent explanation, and fully understand it.

By the way, please also be so kind as to join CR4 and become a proper name, as guest can be good, bad (or Ugly??) or indifferent!!

We cannot tell them apart and also therefore give them much less credence........!!