can anybody send me syllabus of rrb section engg (electrical). and also send previous question pepar...

0 Answers   GKB,

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1 Sq.mm ( Aluminium Cable ) = How much Amphere ( AMP )

4 Answers   Google, TATA,

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why are we using resistor in NGR ?

1 Answers  

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Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.

4 Answers  

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which mm cable should be used for 1.hp immersible pump motor for the distance of 330 metres?

0 Answers  

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What is the capacity of the Fastners 12mm?

0 Answers   Sobha Developers,

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Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?

0 Answers  

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What is the difference between bundled conductors and double circuit?

1 Answers   Power Grid,

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WHAT IS DIFFERENCE BETWEEN POTENTIAL DIFFERENCE AND E.M.F?

2 Answers  

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is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?

0 Answers   Unitech,

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1.what is the contact resistace of CB ? 2.radioactivity should be mesured with---------?

3 Answers   Power Grid,

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can you explain the rms value in simple words....

5 Answers  

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