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Magnetni krogi I Magnetni krogi I Magnetni krogi I - LES

Magnetni krogi I Magnetni krogi I Magnetni krogi I - LES

Magnetni krogi I Magnetni krogi I Magnetni krogi I - LES

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Na grafu odčitamo vzbujalni<br />

tok, ki je na novi karakteristiki<br />

potreben za inducirano<br />

napetost 135 V.<br />

Vidimo, da potrebujemo<br />

2,44iA vzbujalnega toka.<br />

Vzbujalna veja mora imeti<br />

takšno upornost, da bo pri<br />

135 V, znašal vzbujalni tok<br />

2,44 A.<br />

I<br />

v<br />

( Rvc<br />

+ Rx<br />

) = U0<br />

U0<br />

R<br />

vc<br />

+ Rx<br />

=<br />

I<br />

v<br />

Kolektorski stroj<br />

Vrednost upora R x znaša:<br />

R<br />

U<br />

135<br />

Kolektorski stroj<br />

0<br />

x<br />

= − Rvc<br />

= − 45 = 10, 3<br />

I<br />

v<br />

2,44<br />

Ω<br />

57

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