Electrical Machines Normally for the design of transformer the ambient temperature is taken as 27°C. 45°C. 35°C. 32°C. 27°C. 45°C. 35°C. 32°C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The damper windings also called the squirrel cage windings or damper grids consists of short-circuited copper bars embedded in the field pole faces. are provided on the stator for improving power factor. both (A) and (B). are provided in a synchronous motor to make it self starting. consists of short-circuited copper bars embedded in the field pole faces. are provided on the stator for improving power factor. both (A) and (B). are provided in a synchronous motor to make it self starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for swing action which motor is preferred? AC slip ring IM. Capacitor type induction motors. DC series motor. Reluctance motor. AC slip ring IM. Capacitor type induction motors. DC series motor. Reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the pitch factor? Cos α² Cos α sin (α/2) Cos (α/2) Cos α² Cos α sin (α/2) Cos (α/2) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When applied rated voltage per phase is reduce to one half, the starting torque of three phase squirrel cage induction motor becomes 1/2 of the initial value 1/4 of the intial value 4 time the initial value twice the initial value 1/2 of the initial value 1/4 of the intial value 4 time the initial value twice the initial value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The inertia constant H of a synchronous condenser is equal to that of the effective length of the line. greater than that of hydro generator. greater than that of turbo alternator. none of these. equal to that of the effective length of the line. greater than that of hydro generator. greater than that of turbo alternator. none of these. ANSWER DOWNLOAD EXAMIANS APP
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