Electrical Machines A shunt generator has a critical field resistance of 300 Ω at a speed of 800 rpm if the speed is raised to 1000 rpm the critical field resistance is 375 Ω. 145 Ω. 150 Ω. 225 Ω. 375 Ω. 145 Ω. 150 Ω. 225 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Mechanical energy is supplied to DC generator at the rate of 4200 J / s. The generator delivers 32.2 Amp at 120 V. What is the percentage efficiency of the generator? 201.02 V. 212 V. 205 V. 210 V. 201.02 V. 212 V. 205 V. 210 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss will depends on f f² f1.6 f³ f f² f1.6 f³ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound 4 pole dc motor has 460 conductors. Find the number of parallel paths between the conductors? 6. data provided is insufficient. 2. 4. 6. data provided is insufficient. 2. 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The inertia constant H of a synchronous condenser is greater than that of hydro generator. none of these. equal to that of the effective length of the line. greater than that of turbo alternator. greater than that of hydro generator. none of these. equal to that of the effective length of the line. greater than that of turbo alternator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, which of these parameters remain the same whether it runs as a DC motor or a DC generator? Armature current. Mechanical power. Can not be determined. Induced emf. Armature current. Mechanical power. Can not be determined. Induced emf. ANSWER DOWNLOAD EXAMIANS APP
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