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aruna
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Join Date: Jan 2009
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Relation Between Transmission Line and Capacity Of A Distribution Station

11/06/2013 10:45 PM

I was trying to understand the above relation. if we have a 110 KV transmission line, what is the maximum capacity of a distributing station or substation. Is there a upper limit which this substation can handle based on tranmission line? Can anybody please explain this relation.
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lyn
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Join Date: Oct 2008
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#1

Re: Relation between transmission line and capacity of a distribution station

11/06/2013 10:51 PM

You're kidding, right?

Yes, there is a relation. You are not qualified to know, or understand, that relationship.

Get some competent help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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nilesh_ms
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#2

Re: Relation between transmission line and capacity of a distribution station

11/06/2013 11:02 PM

Generally it is 40MVA for 110kV in India. Need to check with your local Electricity Board.
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Tornado
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#3

Re: Relation between transmission line and capacity of a distribution station

11/06/2013 11:07 PM

For one thing, the size of the transmission wire will limit the current it can carry. From there, V A √3 / 1,000,000 = max MVA.

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pnaban
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#4

Re: Relation between transmission line and capacity of a distribution station

11/07/2013 2:47 AM

Check surge impedance load capacity & voltage drop.

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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#5

Re: Relation between transmission line and capacity of a distribution station

11/07/2013 3:51 AM

Yes, of course there is an upper limit. There are actually several upper limits:

  • The capacity of the generation equipment
  • The capacity of the sending transformer
  • The capacity of the receiving transformer
  • The capacity of the wiring connecting them
  • The capacity of the wiring downstream of the receiving transformer,
  • Etc.

Whichever is the lowest of these will be the bottleneck.

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vargaalex
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#6

Re: Relation Between Transmission Line and Capacity Of A Distribution Station

11/08/2013 9:02 AM

First of all, please hire a professional, before you get into some real trouble which could even lead to someone's death.

Second, your answer lies in defining the size of the transmission line cables, analyzing environmental impacts like temperature and humidity and most importantly how many clients are taken power from that main transmission line.

Once all of these items have been addressed, the next is to define the size of your consumption.

Finally based on these the sub station can be defined, BY a professional.
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lyn (1); nilesh_ms (1); pnaban (1); PWSlack (1); Tornado (1); vargaalex (1)

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