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.

how we select ac fuse rating of an power inverter???

0 Answers   Simco,

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I have an 15A fuse MCB that controls a night storage heater. It needs replacing and is now obsolete. Is a 16A C curve MCB the correct replacement?

2 Answers  

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What are the types of instrument transformer?

0 Answers  

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what is over frequency protection

1 Answers  

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How we calculate the Multiplying Factor of Kwh meter for 3 phase alternator.

0 Answers   Cesco,

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I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

0 Answers   IOCL,

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What is meant by H.R.C fuse?

40 Answers   Gas Projects, GSCE, Taj Group,

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can we use 7volt DC BATTERY to run a 60watt motor by stepup? Give reason for your answer?

5 Answers  

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where we use zero sequence current transformer or core balancing ct.

2 Answers  

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what happen if any one phase of a slipring induction rotor winding is open?is it start or won't?

2 Answers   Aurobindo, Hetero,

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I am working in transmission network, one of my 66kv line having short distance about 6km, when sending end voltage is 67kv receiving end get 69kv, i want to know that, does distance affects in this matter, please explain in this matter & if possible answer me on my mail id, kaushikkumar.vanavi@getcogujarat.com, kaushik.vanavi@gmail.com

5 Answers  

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What is Exact meaning for Full load Efficiency and Maximum Efficiency of Transformer? Is there any Difference between? If yes ,please provide with formulae?

2 Answers   Techno Labs,

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