Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor copper loss? 100W 80W 40W 60W 100W 80W 40W 60W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the handle of a three point starter goes to back to OFF position, it may be due to zero or very low voltage supply. over load. all of these. high filed circuit resistance. zero or very low voltage supply. over load. all of these. high filed circuit resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the temperature of armature resistance is increased, the speed of a series motor would not change. None of above. decrease. increase. not change. None of above. decrease. increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short-shunt cumulatively-compounded dc generator builds up a voltage of 220 V at no load at rated speed. If it is operated as a differentially compounded generator, other things remaining the same, it would build up 220 V somewhat less than 220 V more than 220 V 6 V 220 V somewhat less than 220 V more than 220 V 6 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 3rd harmonics are eliminated in induction motor by using star connection. zig - zag connection. delta connection. V connection. star connection. zig - zag connection. delta connection. V connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinss test in DC motor is conducted at ? None of these. No load. Full load. Low load. None of these. No load. Full load. Low load. ANSWER DOWNLOAD EXAMIANS APP
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