(a) In what respect does the construction of an A.C. generator differ from that of a D.C. generator?
(b) What normally drivers the alternators in a Thermal Power Station? What fuels can be used to heat eater in the boiler?

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Solution

A.C. generator D.C. generator

In an A.C. generator, two ends of the coil are linked to two full rings of copper called slip rings . In a D.C. generator, two ends of the coil are linked to a commutator consisting of two half rings of copper.

(b) The high pressure of steam normally drives the alternators in a thermal power station. Coal, natural gas or oil can be used to heat water in the boiler to form steam of high pressure.

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Similar questions

Which one of the following statements about power stations is not true ?

(a) hydroelectric power stations use water to drive turbines

(b) in a power station, turbines drive generators

(d) in hydroelectric power stations and thermal power stations, alternators produce electricity

What type of generator is used at Power Stations ?

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A.C. generator	D.C. generator
In an A.C. generator, two ends of the coil are linked to two full rings of copper called slip rings .	In a D.C. generator, two ends of the coil are linked to a commutator consisting of two half rings of copper.