Q. What is the value of Yf for a lap winding with a 4-pole, 12-slot armature with two coil sides/slot? (Assume single-turns coils – progressive winding)

View solution

Q. Equalizer rings are needed in lap winding.

View solution

Q. What is the symmetry requirement of lap winding?

View solution

Q. What is the relation between number of parallel paths(A) and number of poles(P)?

View solution

Q. Current flowing through the armature conductors Ic is related to total current Ia by_______

View solution

Q. Value of commutator pitch in lap winding is_____

View solution

Q. What is the value of Yf for a lap winding with a 4-pole, 12 commutator segments, with two coil sides/slot.?

(Assume single-turns coils -retrogressive winding).

View solution

Q. What will be the value of “Yf + Yb” for a wave winding?

View solution

Q. For a progressive wave winding Yc = ______

View solution

Q. Number of parallel paths in wave winding are ______

View solution

Q. What is the spacing between the brushes for a wave winding when a machine is 6-pole DC armature with 16 slots having 2-coil sides per slot and single-turn coils.

View solution

Q. What is the relation between conductor current and armature current in wave winding?

View solution

Q. For a conductor current equal to 4 mA, Current carried by a particular brush in a 2-pole machine will be _____

View solution

Q. Equalizer rings are needed in the wave winding.

View solution

Q. For a wave winding when a machine is 6-pole DC armature with 16 slots having 2-coil sides per slot and single-turn coil, Yf value is ____

View solution

Q. Wave winding machines are used in ______ currents applications.

View solution

Q. For a wave wounded machine number of brushes for small, large machines respectively is ________ _________

View solution