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DEFECTE IN MASINI ELECTRICE

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Pentru o masina cu p poli si m faze, solenatia totala pe armatura<br />

Θ<br />

total<br />

( x,<br />

t)<br />

=<br />

Inductia magnetica in intrefier<br />

µ Θ<br />

B(<br />

x,<br />

t)<br />

=<br />

2<br />

N<br />

π<br />

mp<br />

∑<br />

g=<br />

1<br />

( x,<br />

t)<br />

n<br />

b<br />

I<br />

g<br />

µ<br />

∞<br />

∑<br />

ν = 1<br />

1<br />

k<br />

ν<br />

gν<br />

[ sin( α −νβ<br />

) + sin( α + νβ ) ]<br />

1<br />

mp ∞<br />

0 total 0 = N∑<br />

nbI<br />

g∑<br />

kgν<br />

)<br />

2δ<br />

c πδ c g = 1 ν = 1ν<br />

Campul magnetic creat de infasurarile statorice<br />

ΨΨΨΨ<br />

=<br />

∫<br />

Suprafata<br />

B(<br />

x,<br />

t ) dA<br />

Mentenanta sistemelor<br />

industriale - Curs 6<br />

[ sin( α −νβ<br />

) + sin( α + νβ ]<br />

14

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