Electrical Machines If the field of a dc shunt motor gets opened while the motor is running, then the motor will attain dangerously high speed motor will become slow. armature current will drop armature will oscillate about original speed as the mean speed motor will attain dangerously high speed motor will become slow. armature current will drop armature will oscillate about original speed as the mean speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a dc machine shunt resistance and armature resistance values are high and high low and high low and low high and low high and high low and high low and low high and low ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dissolve gas analysis of transformer oil is carried out to determine condition of transformer. condition of bushings. condition of bushing stud. condition of transformer oil. condition of transformer. condition of bushings. condition of bushing stud. condition of transformer oil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound 4 pole dc motor has 460 conductors. Find the number of parallel paths between the conductors? 4. data provided is insufficient. 2. 6. 4. data provided is insufficient. 2. 6. 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 59.2%. 88.8%. 57.1%. 48.0%. 59.2%. 88.8%. 57.1%. 48.0%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 2 KVA transformer has iron loss of 150 W and full load copper loss of 250 W. The maximum efficiency of the transformer would occur when the total loss is 500 W 400W 250 W 300 W 500 W 400W 250 W 300 W ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS