Electrical Machines Which of the following induction motor has maximum speed? 4 pole. 2 pole. 8 pole. 6 pole. 4 pole. 2 pole. 8 pole. 6 pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The air gap between the yoke and armature is dc machine is kept very small to avoid over heating. to achieve a stronger magnetic field. to avoid locking of the armature. All of these to avoid over heating. to achieve a stronger magnetic field. to avoid locking of the armature. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. How will the machine share, if the load is 600 MW? generator 2 gets over load generator 1 gets over load 230.7 MW and 369.23 MW respectively 200 MW and 400MW respectively generator 2 gets over load generator 1 gets over load 230.7 MW and 369.23 MW respectively 200 MW and 400MW respectively ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of an induction motor operating at no load will have a value around 0.2 lag 0.2 lead 0.9 lag unity 0.2 lag 0.2 lead 0.9 lag unity ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator V curve is drawn between field current on X-axis and power factor on Y-axis. field current on X-axis and armature current on Y-axis. either of these. field current on Y-axis and armature current on X-axis. field current on X-axis and power factor on Y-axis. field current on X-axis and armature current on Y-axis. either of these. field current on Y-axis and armature current on X-axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At what power factor, the voltage regulation of a transformer can be zero ? Zero power factor. Lagging power factor. Unity power factor. Leading power factor. Zero power factor. Lagging power factor. Unity power factor. Leading power factor. ANSWER DOWNLOAD EXAMIANS APP
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