Answer / guest

To find the cable size:
1.Decide the load ratings ie., voltage, FL current of the
load.
2.So that P = V*I*PF
3.Now apply ohms law, V=IR.
4.Now we have the resistance, as per the resistance we can
choose the cable. R= (permeability*Length)/Area of C.S

in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?

1 Answers  

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why the motor is rated as kw& transformer as kva

7 Answers   Areva,

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Why we generate power at multiple of 11 i.e 11kv,33kv etc.

9 Answers   DTV Solutions, Havells, TCS,

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wht factor are considered to design ACB( air Circuit reaker) 415V

3 Answers  

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1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?

1 Answers  

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What are HT & LT Cables? What are their values?

3 Answers   IOCL,

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what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

1 Answers  

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71ohm,111ohm,95ohm,179ohm in calculate the total ohm in series circuit

1 Answers   Machino,

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if 1hp jet motar drop voltage when start from 220v to 120v give the reason and solution.

1 Answers  

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can we find the inductance of a induction motor?

1 Answers   Trident,

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Pleasd Tell Me..... In Generating Stations Why The Generation Of ELECTRICITY Is In 3 Phase Form?? OR In Generating Station Why We Generates The ELECTRICITY In The 3 Phase?? Why Not In The 4 Phase, 5 Phase Or 6 Phase Form??

3 Answers  

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What is a charge.?

4 Answers  

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