Average Powerplant to consumer transformer circuit

187

02:25:55

This is an example of how transformers step up and down the voltage to a consumer at home.

published 7 years ago

hurz

7 years ago

Transformer coupling coefficient has to be below 1! The voltage at consumer suppose to be 230Vrms which needs a peak voltage of 325V!

eekee

7 years ago

Indeed. A coefficient of 1 might be excused as an approximation of an extremely efficient transformer, but never 2. They wouldn't be over 1 unless the cores of these mains distribution transformers were literally what my physicist friend metaphorically describes them as: fairy dust. :) I really don't know why EC allows it to go over 1.

eekee

7 years ago

I turned all the coupling coefficients down to 990m (99%), and struggled to get the output over 5V peak! Messing with the inductances helped.

eekee

7 years ago

I ultimately came to the conclusion that transformers are annoying. :) I'm sure specialist knowledge is required. http://everycircuit.com/circuit/4902082305064960

hurz

7 years ago

Toroid transformers as big as your fingernail do have coupling coefficient of 0.992 !

eekee

7 years ago

oh! noted.

hurz

7 years ago

@eekee, i had a quick view on your interpretation and i think you are going the wrong way with unrealistic ultra high impedances. 400H × 34^2 = 462400 Henry for secondary !! This is an impedance of 174 MegaOhm at 60Hz!!

eekee

7 years ago

@hurz: yeah, but if i make it less, the source just seems to short-circuit through the transformer. Not sure what i'm doing wrong.

eekee

7 years ago

bear in mind 174MΩ applies to 400kV

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