Answer / mojinkoshy

The HT/EHT/MV voltages are mentioned as the multipliers of form factor ie. (3.14/2 root 2) = 1.1

Answer / k.prakashchandra

I had given answer to this long back.In the question
voltages are not correctly mentioned as V and KV.The first
electrical appliance was 100 V DC bulb.When AC system was
introduced ,the same bulb was used for 110 V AC applying the
form factor to make it equivalent.Then 11/33/ etc KV
systems came into being just have simple voltage ratio for
transformers.However we have 400 KV instead of 440 KV.

Answer / k.prakashchandra

220 is the root cause for others

Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

0 Answers   NHPC,

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what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group

0 Answers   Bosch,

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Define transfer function?

0 Answers  

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hi,every one, i have to write the search paper on "performance policy optimization" of NGN (next generation networks). i need the material on this topic. can any body help me. please tell me any useful site where the good material is available and name of any reference book. it should be a great help for me.

0 Answers  

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why there is no grow of grass under the high voltage transmission line?

3 Answers   TATA, Tata Power,

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2.5mva transformer is installed in our company with oltc but it is not working in auto mode ,it is operative in manual mode control wiring is done how can i rectify it?

5 Answers   Imdaad,

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I have 90KW Motor 60 Hz,380V Pf 0,88. after testing the Motor without Load is the no load Current 36 A,but wenn i put load after 2 hours the current increase more than 156 A. Can anybode tell me waht is the Problem?

4 Answers   ABB,

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What is the pratically meaning of neagative going ac current.

1 Answers  

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what is the difference between line & phase current in star delta connection motor?

2 Answers  

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how to select the no. of brushes in a lap winding?

0 Answers  

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please describe the Transformer setting, Motor setting, I/C setting, Tie setting

0 Answers  

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What are the specific gravity of fully charged and fully discharged lead-acid battery?

1 Answers   Mukand,

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