Explanation: The fractional pitch winding results in reduction of copper in overhang and it results in less cost of the machine. kpn=cos(nε)/2 implies reduces harmonics and thereby rendering the output EMF wave almost a sine wave. 10. The pitch factor, in rotating electrical machinery, is defined as the ratio of resultant EMF of a
A. full-pitched coil to that of a chorded coil
B. full-pitched coil to the phase EMF
C. chorded coil to the phase EMF
D. chorded coil to that of a full-pitched coil
Answer:A
Explanation: The fractional pitch winding results in reduction of copper in overhang and it results in less cost of the machine. kpn=cos(nε)/2 implies reduces harmonics and thereby rendering the output EMF wave almost a sine wave. 10. The pitch factor, in rotating electrical machinery, is defined as the ratio of resultant EMF of a
A. full-pitched coil to that of a chorded coil B. full-pitched coil to the phase EMF C. chorded coil to the phase EMF D. chorded coil to that of a full-pitched coil
Explanation: Kp= Resultant EMF of a chorded coil/Resultant EMF of a full pitched coil = cosε/2 Sanfoundry Global Education & Learning Series – Electrical Machines.