Electrical Machines The main disadvantage(s) of the ward-Leonard system is/are poor overall efficiency. high initial cost. high maintenance cost. all of above. poor overall efficiency. high initial cost. high maintenance cost. all of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous machine has P number of poles, find the relation between electrical angular momentum (ωe) and mechanical angular momentum (ωm)? ωe = 2/P*ωm ωe = P*ωm ωe = P/2*ωm ωe = ωm ωe = 2/P*ωm ωe = P*ωm ωe = P/2*ωm ωe = ωm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two transformers operating in parallel will share the load depending on their per unit impedance ratings leakage reactance efficiency per unit impedance ratings leakage reactance efficiency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a motor falls from 1100 r.p.m at no-load to 1050 r.p.m at rated load. The speed regulation of motor is 2.57 %. 3.76%. 4.76%. 2.56 %. 2.57 %. 3.76%. 4.76%. 2.56 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat generated in the transformer is dissipated mainly by convection. All of these radiation. conduction. convection. All of these radiation. conduction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Winding conductors of an electrical power transformer are mainly insulated by rubber insulation. paper insulation. wooden insulation. cotton insulation. rubber insulation. paper insulation. wooden insulation. cotton insulation. ANSWER DOWNLOAD EXAMIANS APP
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