A three- phase, three-stack variable reluctance stepper motor has 20 poles on each rotor and stator stack. The step angle of this motor is (GATE-EE-2007)
A. 3
B. 6
C. 9
D. 18
EXPLANATORY ANSWER:
Step angle= 360/ m*Nr
where
Nr=no.of rotor poles
m=no.of phases
therefore step angle=360/3*20
step angle=6
A. 3
B. 6
C. 9
D. 18
EXPLANATORY ANSWER:
Step angle= 360/ m*Nr
where
Nr=no.of rotor poles
m=no.of phases
therefore step angle=360/3*20
step angle=6
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