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vanteru.madhu
Member

Join Date: Feb 2009
Posts: 7

Voltage drop calculations

03/04/2009 1:46 AM

Dear all

I want to know the voltage drop calculation for the below values.

Current (I) in the circuit is 1000A

Voltage is 415V

Length is 800m

What is the cable size for the above circuit.

Please send me the calculation part for the above values

Thank you,
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jack of all trades
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New Zealand - Member - Kiwi Popular Science - Weaponology - New Member Engineering Fields - Power Engineering - New Member Engineering Fields - Electrical Engineering - New Member

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Location: Auckland, New Zealand
Posts: 8777
Good Answers: 376
#1

Re: Voltage drop calculations

03/04/2009 2:30 AM

This sounds like a homework question.

Could you please provide more information on why you are asking such a question. Are you a student or is this a general interest enquiry?

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vanteru.madhu
Member

Join Date: Feb 2009
Posts: 7
#5
In reply to #1

Re: Voltage drop calculations

03/04/2009 6:32 AM

Hi jack,

I am a trainee electrical design engineer.

I am involving one project.In this project we have to give the cable size for the circuit which is from Main Distribution Panel (MDP) to Floor Distribution Panel (FDB) which has circuit breaker rating of 1000A,ACB.The distance from MDP to FDP is 800 Mtrs.For that we have to consider voltage drop also.

As far as i know, 3 Runs X 3.5C 400 sq.mm AYFY cable should be proper size.is it correct?

I wanna know the voltage drop calculations for this.

Please share your knowledge with me.

Thank you
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cnpower
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Engineering Fields - Control Engineering - New Member China - Member - New Member

Join Date: Sep 2006
Location: CHINA
Posts: 2945
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#2

Re: Voltage drop calculations

03/04/2009 2:49 AM

well, I can solute it.

One dollar one answer.
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rakesh_semwal
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India - Member - New Member Engineering Fields - Electromechanical Engineering - New Member

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Location: India, 200 Km. North of Delhi.
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#3
In reply to #2

Re: Voltage drop calculations

03/04/2009 3:39 AM

Iwould say 1$/Amps,
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
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#4

Re: Voltage drop calculations

03/04/2009 5:43 AM

British Standard 7671 again?

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vanteru.madhu
Member

Join Date: Feb 2009
Posts: 7
#6
In reply to #4

Re: Voltage drop calculations

03/04/2009 11:45 PM

Thank you ton for your repsonce.
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craigza
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Join Date: Nov 2008
Location: Johannesburg
Posts: 295
Good Answers: 12
#7

Re: Voltage drop calculations

03/05/2009 12:54 AM

Hi there,

This will vary according to country as well as cable specs. As stated in earlier posts goto aberdare cables - dowload cable booklet. Use calculations.

Regards,

Craig
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Users who posted comments:

cnpower (1); craigza (1); jack of all trades (1); PWSlack (1); rakesh_semwal (1); vanteru.madhu (2)

Previous in Forum: Product Reviews? Megger MMC850 Multi-Core Clamp Meter   Next in Forum: BUSBAR

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