I want to know the technology of Transformers?

Question

losses of copper and Iron losses

Answer 1

Copper losses are purely resistive. P=I^2 x R gives you the copper losses when current I (rms) flows through resistance R.

The iron losses are more complex.  They arise from three effects:

1) Eddy currents induced into the core circulate and as the core is effectively a shorted turn, they cause heating and hence losses which can be modeled as further resistive losses.  This effect is minimised by laminating the cores and impregnating with varnish to reduce the shorted-turn effect.

2) Magnetic saturation. At high currents, the core if fully magnetically saturated and so any further current produces no further magnetic flux, it just produces more copper losses.

3) Dipole mobility.  With high frequencies, the atomic dipoles have more inertia and so they can't store and release energy.  Thus, the core saturates at high frequencies more easily than low frequencies.  For this reason, RF transformers use air or ceramic in the core, not iron.

Answer 2

It's not real. There are no "transformers". See: Science Fiction.

Answer 3

They run on Windows Vista Ultimate!