Explanation: E = √2πkpkdfrNΦ, kd is the distribution factor. 10. A polyphase induction motor of the slip ring or wound rotor type can be used ____________
A. for high start-up torque applications
B. as a frequency converter
C. any of the mentioned
D. none of the mentioned
Answer:A
Explanation: E = √2πkpkdfrNΦ, kd is the distribution factor. 10. A polyphase induction motor of the slip ring or wound rotor type can be used ____________
A. for high start-up torque applications B. as a frequency converter C. any of the mentioned D. none of the mentioned
Explanation: A polyphase induction motor can be used as a frequency converter (or changer) for changing the supply frequency f to other frequencies sf and (2-s)f at the slip ring terminals. 11. The equation for slip speed is ____________