What's the use of steel sheets on both sides of the transformer?
It should be said on E, a EI transformer and I, two E EE transformer, mechanical machine is not platinum on both sides, a strip of silicon steel sheet, the formation of such coils is an open magnetic field, magnetic loss, low efficiency. The E shape is a closed magnetic circuit, which makes full use of magnetic energy.
Under normal circumstances, the magnetic leakage is too large, can not play the function of transformers.If there is an air gap, the transformer will have a steep drop characteristic, not a transformer, and the output has constant current characteristics. The arc welding machine will adjust the welding current with the air gap.
