Electrical Machines An unexcited single phase synchronous motor is reluctance motor. universal motor. AC series motor. repulsion motor. reluctance motor. universal motor. AC series motor. repulsion motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator V curve is drawn between field current on X-axis and armature current on Y-axis. either of these. field current on X-axis and power factor on Y-axis. field current on Y-axis and armature current on X-axis. field current on X-axis and armature current on Y-axis. either of these. field current on X-axis and power factor on Y-axis. field current on Y-axis and armature current on X-axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is done in speed control of DC motor by field flux control? Inserting an additional resistance in the field circuit. Inserting an additional resistance in the armature circuit. Any of above. Inserting resistance to armature circuit and field circuit. Inserting an additional resistance in the field circuit. Inserting an additional resistance in the armature circuit. Any of above. Inserting resistance to armature circuit and field circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power developed by salient pole synchronous machine is/are None of these excitation power only power due to saliency or reluctance only both 1 and 2 None of these excitation power only power due to saliency or reluctance only both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principle of dynamically induced emf is utilized in transformer. generator. choke. thermocouple. transformer. generator. choke. thermocouple. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the armature current of 5 Amp is flowing through the dc motor the torque produced is 47 Nm. Keeping the speed constant if the armature current is increased to 7 amp, calculate the new torque. Assume losses to be constant. 65.8 Nm. 27.73 Nm . 74 Nm. 38.5 Nm. 65.8 Nm. 27.73 Nm . 74 Nm. 38.5 Nm. ANSWER DOWNLOAD EXAMIANS APP