For crane travel which of the following motors is normally used ?
A. Synchronous motor
B. D.C. differentially compound motor
C. Ward-Leonard controlled D.C. shunt motor
D. AC. slip ring motor
Answer:D
For crane travel which of the following motors is normally used ?
A. Synchronous motor B. D.C. differentially compound motor C. Ward-Leonard controlled D.C. shunt motor D. AC. slip ring motor