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RAJKUMAR0376
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Join Date: Jul 2013
Posts: 1

420kv Switchyard Power Flow

07/02/2013 3:39 AM

can any one tell me the direction of flow of power in one and half breaker scheme.and what are the condition for breaker off. do the two bus always remains charged all the time.only for one unir say 700
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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
Good Answers: 839
#1

Re: 420kv switchyard power flow

07/02/2013 4:02 AM

There should be a suite of design documents somewhere. If not, ask the most Senior Authorised Person that is available.

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Anonymous Poster #1
#2

Re: 420kv switchyard power flow

07/02/2013 4:59 AM

Why does it break?
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PeterT
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Join Date: May 2010
Location: Liverpool, NY
Posts: 961
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#3

Re: 420kv Switchyard Power Flow

07/02/2013 8:51 AM

Download this (free!) excellent reference and look at section 4.6 to learn about various bus configurations. The breaker-and-a-half scheme is included.

Design Guide for Rural Substations

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lyn
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Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#4

Re: 420kv Switchyard Power Flow

07/03/2013 9:49 AM

AC or DC power?
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