The Design of Induction Motors; With Special Reference to Magnetic Leakage

651IEl, the primary impressed e.m.f., E11, that part of E1 required to balance the e.m.f.induced by the mutual flux, E20= B11, the secondary induced e.m.f.divided by the slip, s, 2, the equivalent secondary resistance, S IT-= 12 Cos 02, the torque current, * On some accounts it would be more convenient to use J1 (corresponding to Ii), but on the whole J seems to be more satisfactory.IT is so nearly equal to 12 in a reasonably good motor that the difference (about one per cent.) may be neglected.11 is from 7% to 15% larger than IT.