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What will be the direction of rotation of a Alternator in case
it goes in motoring action when connected with grid ?
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Answer Posted / arvind kumar
IT WILL NOT ROTATE,BECAUSE FOR LARGE MACHINE ARMATURE
WINDING IS PLACED on STATOR AND FIELD WINDING ON ROTOR,the
field winding is exited by dc.THE OUT PUT IS DRAWN FROM
STATOR,IN CASE ARMATURE WINDING WHEN CONECTED WITH GRID THEN
DUE TO INVERSE OF FARADAY LAW ELECTROMAGNETIC INDUCTION THE
ARMATURE WINDING WHICH IS PLACED ON STATOR EXPRIENCES TORQUE
under the influence of flux priduced by field winding,but
this is not possible to rotate the stator.for motoring
action is possible in small ac machine in which armature
winding is placed on rotor and field winding on stator
...read p.s bhimra page 239
ph7376722798
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