Pornirea Reostatica
Dupa ce se face graficul pornirii se scriu ecuatiile:
Pct. A)UAN=(RA+RP123)ipmax
Pct B) UAN=(RA+RP123)ipmin+(kØe)Ω1
Pct C) UAN=(RA+RP12)ipmax+(kØe)Ω1
Pct D) UAN=(RA+RP12)ipmin+(kØe)Ω1
Pct E) UAN=(RA+RP1)ipmax+(kØe)Ω1
UAN RA+RP123)ipmax
B-C: (RA+RP123)ipmin=(RA+RP12)ipmax
D-E: (RA+RP12)ipmin=(RA+RP1)ipmax
F-G: (RA+RP1)ipmin=RAipmax
UANi3pmin=RAi4pmax-->d3=UA/RAipma
notatie d=ipmax/ipmin
F-G:RA+Rp1=RA*d Rp1=RA(d-1)
RA+Rp1+Rp2 RA+Rp1)d
pentru a evita regimul de current interrupt se pune o bobina mai mare.descarcarea sa fie mai lunga/
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