Answer / raman jain

The generating end voltages are solely decided by the MVA
capacity of generator and cost. for example 250MVA
generator the generating voltage is 16.5 kV but when we go
for 500 MW generator it is 21 kV. If you try to make the
voltage level 16.5 kV for 500 MW generator , the size of
the generator becomes very much large abd very difficult to
transport and costly. on the other hand if you try to use
21 kV voltage generation for 250 MW generators the cost
will increase due the insulation level you are providing.
So it optimse by the designer .

Answer / sumit

generating voltage depends on the power (kva or mva).if
power is incresed voltage will be increased also.by
increasing the voltage we can reduce the current &
conductor size .if cndctr size will be reduce cost reduce
also.

Answer / vipul tayal

it is simply due to FORM FACTOR becoz form factor for a
pure sine wave is 1.11 and in all systems whether 1 phase
or 3 phase it will be a multiple of 1.11 and leads to
voltages like 11,6.6,10.5,11 kv) etc.

description with working of all parts of a Diesel generator???????

0 Answers   DELL,

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Anyone who can recommend an equivalent to Envirotemp FR3 of Cooper?

0 Answers  

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FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?

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How halogen & merquery lamp works.

0 Answers  

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why voltage swells and dips in transmission line?

2 Answers  

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how to make a solar panel? why solar panel cell connected to serious?

1 Answers  

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is it possible to turn on the single phase star delta on delay timer using 24 v dc ?

0 Answers   L&T,

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I want single line diagram for AMF & DG syncronizing panel

0 Answers  

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What is kvar?

0 Answers  

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i want to know is it possible to generate usefull power by coupling generator with motor & supply gives to motor by battery source then generator generates power. remove the battery source given to the motor & feed the supply from some of the generated power supply to the motor & motor runs continously. generator generate power contnously.is it possible ?

5 Answers   UltraTech,

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Can we calculate the P.F if we know the only load on alternator .

1 Answers   Medha, Medha Servo,

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if 11 lead acid batteries each 200 amph are connected in series so that combinly they can produce 110 volts dc. question is how much backup it can provide ? 2) how can we calculate that how much amprere and voltage is required to charge them . thanks in advance !

1 Answers  

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