Electrical Machines A 3-phase, alternator has generated emf per phase of 230 V with 10% 3rd harmonic and 6% 5th harmonic content. Calculate rms line voltage for star connection. 100 V. 230.2 V. 399 V. 50 V. 100 V. 230.2 V. 399 V. 50 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp? 90 V. 30 V. 60 V. 40 V. 90 V. 30 V. 60 V. 40 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The compensating winding in a DC machine is located on pole shoes for avoiding the flashover at the commutator. is located on commutating poles for improving commutation. is located on pole shoes to avoid the sparking at the brushes. is located in armature slots for compensation of the armature reaction. is located on pole shoes for avoiding the flashover at the commutator. is located on commutating poles for improving commutation. is located on pole shoes to avoid the sparking at the brushes. is located in armature slots for compensation of the armature reaction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Shunt field of DC generators consists of--------number of turns and ---------- conductors respectively less and thick large and thick large and thin less and thin less and thick large and thick large and thin less and thin ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in paper insulation in transformers. winding conductors and steel structures of transformer. steel core. transformer insulating oil. paper insulation in transformers. winding conductors and steel structures of transformer. steel core. transformer insulating oil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine is a none of above are correct. convection machine. conduction machine. both are correct. none of above are correct. convection machine. conduction machine. both are correct. ANSWER DOWNLOAD EXAMIANS APP
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