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UNIQUE48
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Join Date: Jan 2015
Posts: 4

Fault Analysis

01/24/2015 9:25 PM

IF WE TAKE A TRANSFORMER LOADED BY A TRANSMISSION LINE WITH SURGE IMPEDANCE LOADING IF IN CASE A FAULT OCCURS SAY DOUBLE LINE TO GROUND

can there be circulating currents , what will be effect on line propagation wave , transformer's secondary side and "*** will there be sparking phenomena****?

I expect answers in both sides

if yes then also and if not then also ??

gud luck
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redfred
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Engineering Fields - Electrical Engineering - Been there, done that. Engineering Fields - Control Engineering - New Member

Join Date: Dec 2008
Location: Long Island NY
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#1

Re: FAULT ANALYSIS

01/24/2015 10:05 PM

I'm glad to see that your keyboard "caps lock" bit did finally release. It is so rude and pointless to constantly SHOUT your questions.

Currents always circulate. Edward Lawry Norton Norton and Gustav Kirchoff made their reputation knowing this.

Frequently when an electrical fault happens there will be sparks. Often sparks are an indicator of a fatal fault for the electric circuit. When such a fault happens with a power transmission line transformer, the transformer can move about violently in a wave like pattern. If you ever see this you should go the other way.

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Tornado
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#2

Re: FAULT ANALYSIS

01/25/2015 1:27 AM

The fault analysis says that it is your fault. Good luck dodging that.

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RAMConsult
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Engineering Fields - Power Engineering - New Member

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Location: NYC metropolitan area.
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#3

Re: FAULT ANALYSIS

01/25/2015 11:21 AM

Good interview question, many extraneous facts. What are your answers so that we may grade them, surely you didn't expect us to do your work for you, did you?

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lyn
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Join Date: Oct 2008
Posts: 42355
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#4

Re: Fault Analysis

01/25/2015 9:09 PM

If yes:
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7anoter4
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Join Date: Oct 2012
Location: 100 miles North from the World Center
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#5

Re: Fault Analysis

01/26/2015 3:29 AM

UNIQUE48, I think you are an intelligent man but- as the Imaginary Sick-from "Three Men in a Boat" by Jerome K. Jerome- you read many books without full understanding.

There are many publications for "fault analysis" as IEEE 399 [for instance]:

IEEE Recommended Practice for Industrial and Commercial Power Systems Analysis.

In order to get an answer you have to be more specific. What's your problem?

To learn here Electric Power and Transmission Theory it is not this corner.

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

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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.
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#6

Re: Fault Analysis

01/26/2015 9:44 AM

It's spelled "BANG!" and pronounced....

There is a fault current passing through the Caps Lock key on that keyboard at the moment.

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NotUrOrdinaryJoe
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Popular Science - Cosmology - New Member Technical Fields - Technical Writing - New Member Engineering Fields - Energy Engineering - New Member Engineering Fields - Electrical Engineering - New Member Engineering Fields - Control Engineering - New Member Engineering Fields - Electromechanical Engineering - Old Member, New Association

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Location: Lexington, KY
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Good Answers: 73
#7

Re: Fault Analysis

01/26/2015 12:14 PM

Around here, that sort of thing tends to be "somebody elses fault"! A big part of my job is making sure that kind of thing does not occur!

Oh, how I miss those days of schooling, and the beautiful girls and .....

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 A great troubleshooting tip...."When you eliminate the impossible, whatever remains, however improbable, must be the truth." Sir Arthur Conan Doyle
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7anoter4 (1); lyn (1); NotUrOrdinaryJoe (1); PWSlack (1); RAMConsult (1); redfred (1); Tornado (1)

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