Unformatted text preview: rotor field Magnetic axis of a /2 for n 1, 3, 5, … [c] Positive magnetic axis of stator phases perpendicular to plane of coil – their orientation is NOT affected by the rotor for a cylindrical rotor machine. I aa’ = 0 at the instant of time indicated, whereas i cc’ = ‐ i bb’ . bb’ is directed at +120 and since I cc’ is negative, cc’ at + 60 , thus the resultant at +90 . + a’ b c + Plane of coil of rotor winding 5. b X a X c x b x a L(x) I x L W x x i W f fld fld fld fld 2 2 2 ' ' * * * 2 * 1 * * * ) ( * 2 1 )] , ( [ I I f ) ( 2 ) , (...
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This note was uploaded on 12/07/2011 for the course ECE 600 taught by Professor Clymer,b during the Fall '08 term at Ohio State.
- Fall '08