Electrical Machines The speed of rotating magnetic field of 8 pole 50 Hz induction motor is 750 rpm 1000 rpm 3000 rpm 1500 rpm 750 rpm 1000 rpm 3000 rpm 1500 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Scott connections are used for single phase to three phase transformation. three phase to two phase transformation. any of the above. three phase to single phase transformation. single phase to three phase transformation. three phase to two phase transformation. any of the above. three phase to single phase transformation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an induction motor, air gap power is 10 Kw and mechanically developed power is 8 Kw. What are the rotor ohmic losses? 2KW 0.5Kw 1.5KW 3KW 2KW 0.5Kw 1.5KW 3KW ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The back emf produced in a dc motor depends on Z. P. P and Z. none of these. Z. P. P and Z. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of a permanent magnet dc motor is 0.8 Ohm. At no load, the motor draws 1.5 A from a supply voltage of 25 V and runs at 1500 rpm. The efficiency of the motor while it is operating on load at 1500 rpm drawing a current of 3.5 A from the same source will be 57.1%. 59.2%. 88.8%. 48.0%. 57.1%. 59.2%. 88.8%. 48.0%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dummy coils are used for mechanical balancing. All of these reducing armature reaction. increasing efficiency. mechanical balancing. All of these reducing armature reaction. increasing efficiency. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS