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lanre
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Join Date: May 2013
Posts: 2

Earthing of Substation

05/21/2014 4:35 PM

How do i go about the design of the underground earthing cage of a 132kV substation with 2 X 60MVA,132/33kV transformer.
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lyn
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Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: Earthing of substation.

05/21/2014 4:59 PM

1. Get a degree in electrical engineering and two years experience.

2. Join an apprentice electrician program and spend three years in it.

3. Hire a competent electrical engineer.

4. Buy all the applicable codes, study them and go on-line do some study courses, take some tutorials and give it a try.

CAUTION!!! Get it right, or you will kill people!!!!!!!!!!

Seriously, if you have to ask your are not capable of doing this. Give up!
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Crabtree
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Join Date: Jul 2007
Location: Commissariat de Police, Nouvions, occupied France, 1942.
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#2

Re: Earthing of Substation

05/21/2014 5:43 PM

Hahahahahahaha! Aaaaaaahahahahahahahahaha! Aaaaahahahaha! hahahaha!

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North of 60
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Canada - Member - If there is a way to screw someting up, there is someone to do so! Safety - Hazmat - New Member

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#3

Re: Earthing of Substation

05/21/2014 8:20 PM

Or... pickup the "Yellow Pages" and turn to the "E" section and look for an Electrical Engineer.

I have to ask... who is it who gives such a job to someone who comes here to ask these type of questions. They have to have more money then brains.

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 Joe Contractor to Electrical Inspector, "What do you mean you are going to make me follow the code?".
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jack of all trades
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Location: Auckland, New Zealand
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#4

Re: Earthing of Substation

05/21/2014 9:13 PM

Best to let the trained experts do it.

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TonyS
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Join Date: Aug 2010
Location: Resting under the Major Oak
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#5

Re: Earthing of Substation

05/21/2014 10:10 PM

Please god, I hope this is a homework question!

If it isn't, post your location so we can give it a wide berth.

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engilis
Power-User

Join Date: Mar 2010
Posts: 105
#8
In reply to #5

Re: Earthing of Substation

05/26/2014 1:25 PM

Are you a spam? Or real person? If you are real, What do you do? What are you looking here? Don't you have anything better to do except make fun of people ?

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msamad
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Join Date: Feb 2009
Location: Houston, USA
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#6

Re: Earthing of Substation

05/22/2014 9:36 PM

Lanre,

Don't be disheartened. Believe me or not, substation grounding grid design is never covered in any of the text book of electrical engineering in bachelor course. Even not many expert electrical engineers have done it in the career, and very few electrical engineers are even familiar with the calculation of the touch voltage and step voltage which are the basic concept of this design. However, you can consider the standard IEEE 80, 2000 (Guide for Safety in AC Substation Grounding) as the text book of this area of expertise. It is almost 200 pages of document and I would say it is more than the text book and there are lot of new concepts, formulae and calculation in IEEE 80 for this subject. If you have interest and would like to know the subject, get (buy) it and read it thoroughly and practice the example in the appendix C.

Hope, it helps.

- MS

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7anoter4
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Join Date: Oct 2012
Location: 100 miles North from the World Center
Posts: 879
Good Answers: 42
#7

Re: Earthing of Substation

05/22/2014 11:49 PM

See:

Standard IEEE 80 "Guide for safety in AC substation grounding"

British Standard BS 7430 Code of practice for Earthing

German Standard DIN VDE 0141 "Earthing systems for power installations with rated voltages above 1 kV"

European Standard EN 50179 "Erection of electrical power installations in systems with nominal voltages above 1 kV AC

And many other standards.

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lanre
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Join Date: May 2013
Posts: 2
#9
In reply to #7

Re: Earthing of Substation

05/27/2014 10:33 AM

Thanks alot for your contribution,I appreciate.

For those blabbing,I am an engineer with more than 10 years post graduate experience in one of the largest power transmission company of 330kV,132kV and 33kV network.

I am a protection,control and metering engineer.

I just needed contribution to a this topic,thinking I have matured minds in the circle but I discovered some are still childish,but it is okay "some mothers do have them".

My thanks to you for those reference of IEEE,BS and so on.

One love.
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North of 60
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Canada - Member - If there is a way to screw someting up, there is someone to do so! Safety - Hazmat - New Member

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Location: Iqaluit, NU. Canada
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Good Answers: 140
#10
In reply to #9

Re: Earthing of Substation

05/27/2014 11:28 AM

If you would have bothered to provide those details up front, you would have been received much differently.

We very often see people with no skills sets at all asking question about technologies that can cause allot of carnage and loss of life. Hence the earlier response.

Word of advice... if you have a serious question or wish to start a serious discussion about a topic, provide the data needed so that people can determine whether or not they would want to get involved.

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Users who posted comments:

7anoter4 (1); Crabtree (1); engilis (1); jack of all trades (1); lanre (1); lyn (1); msamad (1); North of 60 (2); TonyS (1)

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