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Anonymous Poster

Electrical Earthing

12/14/2010 12:46 AM

Guys, please try to share with me about design of earthing of our plant where only two numbers of 150KW 415 volt three phase motor else small three phase motors and also one PLC and VFD control panel available there. Thanks
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lyn
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Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: Electrical Earthing

12/14/2010 12:50 AM

Design of Earthing System
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
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#5
In reply to #1

Re: Electrical Earthing

12/14/2010 5:23 AM

Oooooh! The original poster could go to that in a KrisDelTM Time Machine!

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cherryg2000
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Join Date: Jan 2010
Location: Calgary, Canada
Posts: 4
#2

Re: Electrical Earthing

12/14/2010 1:53 AM

Assuming that your 415V system is solidly grounded (check if supply Transformer is solidly griunded), calculate the L-G ground fault current. Next size your ground conductors to carry this current for 1 sec (check tripping time of your supply side breaker ). Once that is done, form a grid and connect all the consumers to this grid. Looking at the voltage, it appears that this is in Asia. Pl. check your local codes for the accepted practices for grounding. Anybody with 2-4 years experience in grounding should be able to guide you.
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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
#3

Re: Electrical Earthing

12/14/2010 3:22 AM

→ British Standard 7671.

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mrksmth074
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Join Date: Dec 2010
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#4

Special Cutters

12/14/2010 3:23 AM

This post was deleted because it contained advertising outside the Commercial Space forum. Please review Section 14 of the CR4 Site FAQ about advertising.
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rybrk
Active Contributor

Join Date: Dec 2010
Posts: 12
#6

Re: Electrical Earthing

12/14/2010 11:26 AM

you can Follow IS 3043 earthing system
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cherryg2000 (1); lyn (1); mrksmth074 (1); PWSlack (2); rybrk (1)

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