Electrical Machines Which of the following rotor requires damper winding? None of these Cylindrical rotor. Both type rotor. Salient pole rotor. None of these Cylindrical rotor. Both type rotor. Salient pole rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8-pole, DC generator has a simplex wave-wound armature containing 32 coils of 6 turns each. Its flux per pole is 0.06 Wb. The machine is running at 250 rpm. The induced armature voltage is 384 V 96 V 768 V 192 V 384 V 96 V 768 V 192 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements: To control the speed of a dc shunt motor above the base speed over a reasonably wide range, the motor must 1. have compensating winding 2. have interpole winding 3. be started using a 3-point starter 4. be started using a 4-point starter Of these statements 1, 2 and 4 are correct 1, 2 and 3 are correct 1 and 3 are correct 2 and 4 are correct 1, 2 and 4 are correct 1, 2 and 3 are correct 1 and 3 are correct 2 and 4 are correct ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When maximum starting torque is obtained, rotor power is ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor power output of 3-phase induction motor is 15 KW. The rotor copper losses at a slip of 4% will be 650 W 625 W 600 W 700 W 650 W 625 W 600 W 700 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines which of the following type of brush and their application is/are correct copper graphite → low voltage high current density carbon brush → normal ratings electro graphite → large ratings All of these copper graphite → low voltage high current density carbon brush → normal ratings electro graphite → large ratings All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS