What are the advantages and disadvantages of ac and dc generator???
Answers
1.The generation of A.C. is cheaper than that of D.C. 2.A.C. machines are simple , robust and do mot require much attention for their repairs and maintainance during their use. 3.Wide range of voltages are obtained by the use of transformer. 4.The magnitude of current can be reduced by using an inductance or a conductor without any appreciable loss of energy. 5.A.C. can easily be converted into D.C. with the help of rectifiers. 6.When A.C. is supplied at higher voltages in long distance transmission , the line losses are small compared to a D.C. transmission
DISADVANTAGES
1.Peak value of A.C. is high and it is dangerous to use so better insulation is required. 2.It attracts person who touches it unlike D.C. which gives a repelling shock. 3.An A.C. is transmitted from surface of the conductor and hence need several strands of thin wires insulated from each other.
Explanation:
ADVANTAGES
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Alternating current can be transmitted at high voltage to low voltage. Thus , electric power can be transmitted over long distance without much loss of energy and cost.
AC equipment are durable and convenient in compared to DC.
AC can be converted into DC whereas it is required.
AC can be controlled by using choke coil at low energy loss , whereas DC can be controlled only by an resistance in which energy loss is too much.
By the use of transformer,AC voltage can be up or down.
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DISADVANTAGES
AC is more dangerous than DC.
If accidentally AC wire be touched , it gives a serious shock when compared to DC.
AC can't be used in the process such as electrolysis, electroplating etc...
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