Electric Machines Mega Quiz 8

(a) rotary converter

(b) mercury are rectifier

(c) induction motor D.C. generator set

(d) synchronous motor D.C. generator set

(a) to reduce the reluctance of the magnetic path

(b) to spread out the flux to achieve uniform flux density

(c) to support the field coil

(d) to discharge all the above functions

(a) multiplication of front and back pitches

(b) division of front pitch by back pitch

(c) sum of front and back pitches

(d) difference of front and back pitches

(a) lap winding

(b) wave moving

(c) duplex winding

(d) any of the above

(a) Compensating winding in a D.C. machine helps in commutation

(b) In a D. C. generator interpoles winding is connected in series with the armature winding

(c) Back pitch and front pitch are both odd and approximately equal to the pole pitch

(d) Equilizing bus bars are used with parallel running of D.C. shunt generators