Alternators In an alternator, the effect of armature reaction is minimum at power factor of ______ 0.866 leading 0.5 lagging Unity 0.866 lagging 0.866 leading 0.5 lagging Unity 0.866 lagging ANSWER DOWNLOAD EXAMIANS APP
Alternators For producing an emf of given frequency, an alternator will run at greatest speed for _____ poles. 12 4 8 2 12 4 8 2 ANSWER DOWNLOAD EXAMIANS APP
Alternators Low speed alternators are driven by ______ None of the listed here Steam turbines Steam engine Hydraulic turbines None of the listed here Steam turbines Steam engine Hydraulic turbines ANSWER DOWNLOAD EXAMIANS APP
Alternators The power factor of an alternator is determined by its Excitation Primemover Speed Load Excitation Primemover Speed Load ANSWER DOWNLOAD EXAMIANS APP
Alternators In case of turbo-alternators the rotor is usually made of Manganese steel Laminated stainless steel Forged steel Cast iron Manganese steel Laminated stainless steel Forged steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed of a salient pole machine is nearly 1000 rpm 500 rpm 3000 rpm 1500 rpm 1000 rpm 500 rpm 3000 rpm 1500 rpm ANSWER DOWNLOAD EXAMIANS APP