Electrical Machines The no load and full load speed of DC motor are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor ? 18.25%. 15.30%. 14.28%. 16.67%. 18.25%. 15.30%. 14.28%. 16.67%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutation in a DC machine may be explained as a process in which magnetic field is set up. by which electric current in a coil is reversed. by virtue of which emf is induced in the armature conductors. how alternate flux affects the main field flux. in which magnetic field is set up. by which electric current in a coil is reversed. by virtue of which emf is induced in the armature conductors. how alternate flux affects the main field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit test on transformer gives eddy current loss hysteresis loss copper loss both 1and 2 eddy current loss hysteresis loss copper loss both 1and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines CRGO steel is used in the core of transformer to reduce ohmic loss. hysteresis loss. eddy current loss. both eddy current and hysteresis loss. ohmic loss. hysteresis loss. eddy current loss. both eddy current and hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the supply terminal of a DC shunt motor are interchanged The motor will stop. The motor will run at its normal speed in the same direction as before. The direction of rotation will reverse. The motor will run much faster in the same direction. The motor will stop. The motor will run at its normal speed in the same direction as before. The direction of rotation will reverse. The motor will run much faster in the same direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 5 KVA transformer has a turns ratio of N1/N2 = 10. The impedance of primary winding is 3+j5 ohms while that of secondary winding is 0.5+j0.8 ohms. The impedance of transformer when referred to primary will be 53+j85 ohms 3.05+j5.08 ohms 8+j13 ohms 3.5+j5.8 ohms 53+j85 ohms 3.05+j5.08 ohms 8+j13 ohms 3.5+j5.8 ohms ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS