Electrical Machines A 4-pole dc generator runs at 1500 rpm. The frequencyof current in the armature winding is 0 Hz 25 Hz 100 Hz 50 Hz 0 Hz 25 Hz 100 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commonly used starters of cage motor is star delta. DOL. None of these both A and B. star delta. DOL. None of these both A and B. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following methods are used to control the speed of DC motors is supply voltage control field current control All of these armature circuit resistance control supply voltage control field current control All of these armature circuit resistance control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In star-delta starting of squirrel cage induction motor compared to DOL starting the starting current and torque are 1/√3, 1/√3 1/√3, 1/3 1/3, 1/√3 1/3, 1/3 1/√3, 1/√3 1/√3, 1/3 1/3, 1/√3 1/3, 1/3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field divertor resistance for a DC series motor is of order of 100 Ω 0.1 Ω 50 Ω 10 Ω 100 Ω 0.1 Ω 50 Ω 10 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? All of these Synchronous impedance method. MMf method. ZPF method. All of these Synchronous impedance method. MMf method. ZPF method. ANSWER DOWNLOAD EXAMIANS APP
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