 Related Questions What is the diffrence between Altrnator & Generator? Outline its working principal. Latest Answer : Alternator and Generator have the same principle of electromagnetic induction but Generator has the stationary magnetic field and rotating conductor which rolled on the armature with slip rings and brushes ride against the slip rings which is convert ... What is a brush alternator?What is a brushless alternator?What is the difference between brush and brushless alternator?Which is better between brush and brushless alternator? Latest Answer : Compared to brush alternator, brushless alternator is best because voltage difference in the stator due improper brush contact in slip-ring units cause more unbalance during loading of generator. ... Why most of the alternator is connected in star and have high regulation around 30% as compared to transformer? Latest Answer : The cost of insulation is the deciding factor . If one is using delta connection , the insulation required will be for Ph-Ph voltage but in the case of Star connection the voltgae will be 1/1.732 times. So cost will be less. ... Why alternator is operated at lagging power factor?
How alternator responses with changing the load? Latest Answer : Since the Synchronous generator having the property of supplying the reactive power along with the real power, this can be operated in lagging power factor only. Suppose if it want to work with leading power factor means, it should absorbed reactive power ... If we put field winding on stator and armature winding on rotor then how will it operate? Will it rotate at synchronous speed or not? (Assuming that the alternator is feasible) Latest Answer : Yes, It would surely operate and run at synchronous speed. But it would be uneconomical because we should have 3 slip rings of very high current handling capacity and because of this efficiency will decrease and we will require to have high level of insulation ... How reactive power is related to alternator? Wheather it is generated or consumed? Explain Latest Answer : An Inductive Load say Induction Motor connected to an Alternator requires Active (KW) & Reactive Power (KVAr) both. This Motor receives Apparent Power (KVA --> KW + KVAr) from the Alternator. Active Power is what the Motor is delivering ... Is it possible to increase the capacity of a synchronous generator upto 30% to 50% just to modify the cooling system but the other component remain same? Explain Latest Answer : Yes , one can increase the capacity by efficient cooling. This may be possible by modification in design , using better coolent etc. ...
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