Rotor emf and Equivalent Circuit
Let the rotor e.m.f. at standstill be E2 . When the rotor speed is 0.4 ns, the slip is 0.6 and the relative speed between rotating field and rotor conductors is 0.6ns. Hence, the induced e.m.f. , per phase, in the rotor is
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(12) |
In general, for any value of slip s, the per phase induced e.m.f in the rotor conductors is equal to sE2 . The other quantities of the rotor are given as
 |
(13a) (13b) (13c) (13d) |
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(13e) (13f) |
Based on equation 13f the equivalent circuit of the rotor is shown in Figure 5 .
