Electrical Machines A large series motor is never started without some mechanical on it because otherwise it will Develop excessive speed and damage itself. Produce sparking at brushes. Open fuse or circuit breaker. Draw too much current. Develop excessive speed and damage itself. Produce sparking at brushes. Open fuse or circuit breaker. Draw too much current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC mototr 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 If direct axis reactance Xd and quadrature axis reactance Xq are equal, then reluctance power is minimum maximum All of these zero minimum maximum All of these zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinson test is conducted under which of the following condition? full load half load no load any of the above full load half load no load any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Motor dc compound motor. dc shunt motor with field weakening. dc shunt with armature resistance control. dc series motor. dc compound motor. dc shunt motor with field weakening. dc shunt with armature resistance control. dc series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound DC machine has 400 conductors and 8 poles. The voltage induced per conductor is 2 volts. The machine generates a voltage of 100 V. 400 V. 200 V. 800 V. 100 V. 400 V. 200 V. 800 V. ANSWER DOWNLOAD EXAMIANS APP
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