Explanation: For a P-pole machine, P/2 cycles of EMF will be generated in one revolution, and thus θelec = P/2 θmech. 2. What is the relation between ‘ω’, angular speed in electrical radians per second and ‘ωm‘, angular speed in mechanical radians per second, for a P-pole machine?
A. ω = 2/Pωm
B. ω = 4/Pωm
C. ωm = P/2ω
D. ω = P/2ωm
Answer:A
Explanation: For a P-pole machine, P/2 cycles of EMF will be generated in one revolution, and thus θelec = P/2 θmech. 2. What is the relation between ‘ω’, angular speed in electrical radians per second and ‘ωm‘, angular speed in mechanical radians per second, for a P-pole machine?
A. ω = 2/Pωm B. ω = 4/Pωm C. ωm = P/2ω D. ω = P/2ωm
Explanation: We know θelec = P/2θmech ⇒ d/dt(θelec) = P/2d/dt(θmech) ⇒ ω = P/2ωm 3. A pole pitch in electrical machine _____________