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FADHEL
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Join Date: Sep 2012
Posts: 58

Earth Fault

07/16/2013 2:57 PM

Dear all,

Is there a difference between earth fault occurs inside or out side power plants in terms of impact on plants?

Thanks
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lyn
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#1

Re: Earth Fault

07/16/2013 3:38 PM

Yes.
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JCase
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#8
In reply to #1

Re: Earth Fault

07/17/2013 9:15 AM

Agreed. There is a difference.
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jack of all trades
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#2

Re: Earth Fault

07/16/2013 3:57 PM

Yes, the difference is 'the power plants problem' as opposed to 'someone else's problem'.

As for the difference in fault current seen by the power plant, there will be if the earth fault impedance is different (more or less current flowing in the event of a fault) which it almost certainly will be.

You never did answer my previous question, what exactly IS your role and position in that 132kV substation you say you work at?

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TonyS
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#3
In reply to #2

Re: Earth Fault

07/16/2013 11:24 PM

Head of entertainment?

I hope so because there's no way he should be allowed anywhere near any power equipment.

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Tornado
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#4

Re: Earth Fault

07/17/2013 12:15 AM

I have my own preferences; don't you?

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PWSlack
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#5

Re: Earth Fault

07/17/2013 3:42 AM

One goes BANG, the other goes BANG!

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dhayanandhan
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#6

Re: Earth Fault

07/17/2013 5:01 AM

Dear Mr.FADHEL,

As for as Electrical Circuit is concerned there is NO ISSUE of "INSIDE or OUTSIDE PLANT" as the circuit is continuous, and the DEFECT occuring spot will be DICTATED by the PROTECTION SYSTEM ADOPTED, Severity also will vary.

DHAYANANDHAN.S
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PWSlack
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#7

Re: Earth Fault

07/17/2013 5:50 AM

The purpose of the circuit protection equipment is to disconnect the supply in the event of a fault occurring. So, logically, a fault inside the plant may affect only a small area of it; a fault outside the plant may well shut down the plant and a good chunk of the local community too.

Does that answer the question?

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dhayanandhan (1); jack of all trades (1); JCase (1); lyn (1); PWSlack (2); TonyS (1); Tornado (1)

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