america 60hz electric supply is used; but india it is 50hz; why? and if we use 60 hz supply what changeg has to be done or all the equipment has to be thrown which has rating of 50hz frequincy

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Why the transformers are rated in KVA ? in new view

3 Answers  

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The size and construction of bushings in a transformer depend upon?

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how to select the cable size? any formula to calculate cable size?

4 Answers  

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Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?

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in alternator what is use of AVR ? how AVR is operating either AC or DC?

1 Answers  

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What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?

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Is the installation of the filter cloths necessary before spreading the gravels at the transformer yards?

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Why Diffrential and Ref relays are used together although Diffrential relay can protect Pri and Sec of Transformer

1 Answers   Qatar Gas,

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What is double throw isolator and single throw Isolator.

1 Answers   KSEB, L&T, Siemens,

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how to increase the power factor in machines

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how does a shunt reactor maintains the bus voltage???

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