Electrical Machines The principle of dynamically induced emf is utilized in choke. thermocouple. generator. transformer. choke. thermocouple. generator. transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the armature windings are placed on the rotor because of the necessity for commutation electromechanical energy conversion development of torque generation of voltage commutation electromechanical energy conversion development of torque generation of voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors normally use cast aluminium rotor because aluminium is of low resistivity. lighter in weight. easy to cast owing to its low melting point and is easily available. cheaper in cost. of low resistivity. lighter in weight. easy to cast owing to its low melting point and is easily available. cheaper in cost. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A large series motor is never started without some mechanical load on it because otherwise it will open fuse or circuit breaker. draw too much current. produce sparking at brushes. develop excessive speed and damage itself. open fuse or circuit breaker. draw too much current. produce sparking at brushes. develop excessive speed and damage itself. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power input to a 3 - φ induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is slip X 59 / 3. slip X 50 / 3. 1. slip X 69 / 3. slip X 59 / 3. slip X 50 / 3. 1. slip X 69 / 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On switching a DC motor to DC supply mains, it is found to rotate in the direction opposite to that for which it is designed. The DC motor is Cummulative compound. Differentical compound. Series shunt. have an equal number of electrons and protons. Cummulative compound. Differentical compound. Series shunt. have an equal number of electrons and protons. ANSWER DOWNLOAD EXAMIANS APP
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