Electrical Machines In speed control of DC shunt motor by varying field flux, what may be the value of field regulator? 0.2 ohm 10 ohm 100 ohm 2 ohm. 0.2 ohm 10 ohm 100 ohm 2 ohm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a cumulatively compound DC motor can be controlled by varying Armature voltage control. Any of above. Armature resistance control. Shunt field resistance control. Armature voltage control. Any of above. Armature resistance control. Shunt field resistance control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The air gap between the yoke and armature is dc machine is kept very small All of these to achieve a stronger magnetic field. to avoid over heating. to avoid locking of the armature. All of these to achieve a stronger magnetic field. to avoid over heating. to avoid locking of the armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 100 KVA transformer is operating at 60 Hz, 240 V supply. The same transformer is operating at 50 Hz, 200 V supply. The new rating is 123.3 KVA 50 KVA 83.33 KVA 100 KVA 123.3 KVA 50 KVA 83.33 KVA 100 KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole generator with 16 coil has a two layer lap winding. The pole pitch is 32. 8. 16. 4. 32. 8. 16. 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used. Ward Leonard control. any of above method. none of above. rheostatic control. Ward Leonard control. any of above method. none of above. rheostatic control. ANSWER DOWNLOAD EXAMIANS APP