Answer / k.prakashchandra

Whenever there is sudden 'load throw off' ,the rpm of the
turbine increases considerably ,it may even attain run away
speed which may be 5 times the normal(working) rpm

Answer / kj

An alternator cannot be built to run faster that 3000 rpm
if it is to produce 50 Hz. and often is made to run at
1500RPM.

Turbines are not efficient at those low speeds so they are
operated at higher speeds and gearing must be used to
change the speed down to the maximum speed of the
alternator.

what is a bus riser in power system and why it is used

2 Answers  

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What is diversity factor.

2 Answers   Cadbury,

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Why the power factor of the alternator in power plant is kept .8 lagging. Can't we maintain it at 1.

3 Answers  

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220/33kv voltage level having 60MVA rating , which transformer is preferred two winding or auto transformer. why, kindly provide your strong technical valuable views.

1 Answers  

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sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

0 Answers   Jindal,

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11 kv line me tino phase takra jaye to present time me approximately voltage aur current kya hoga...

2 Answers   Electrical, Electrical Tech, Videocon,

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Is potential difference materials property ..? if yes tnen how.. explain brifly.

0 Answers  

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how many units consumed by a 33/440 2000 kava transformer in a day

3 Answers   Infosys, MRF,

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Definition of grid?

7 Answers   L&T, Pace Power Systems, Vijai Electricals,

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As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?

3 Answers  

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What will be the capcity of 3 phase DG set require for 25 KVA single phase lighting load?

7 Answers   Supernova,

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what type of transformer used in soft ware parks its distribution or power transformer. like 1800 kva

3 Answers  

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