Secondary resistance of a Lincoln Buzz box ?

lalatheman · Sep 20, 2005

What would be the norml secondary resistance of a lincoln 225 amp standard AC buzz box, measured in ohms , with the power off of course. How much variation for the different output ranges?

Dave Lawrence

chucki · Sep 29, 2005

Hi lalatheman,
I don''t have a Lincoln, but the general principles hold. Suppose on the lowest current range , say 50Amps, with the maximum power input being ,say 3 Kw. This gives us, amps x amps x resistance( of the LOAD) i.e 50 x50 xR = 3000. divide each side by 2500 gives, R = 3000/2500 = 1.2 ohms, this is the resistance of the arc. the transformer resistance should be about 1/10 of this, i.e.= .12 Ohms, at higher current ranges the resistance will be correspondingly less, roughly at 200 A it should be .12 / 16 = .075 Ohms, good luck measuring this! ( the 16 comes from 200/50 squared)

Search

Largest Manufacturing Technology Community on the Web

Search

Secondary resistance of a Lincoln Buzz box ?

lalatheman

Hot Rolled

chucki

Aluminum

Similar threads