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Joined: Jul 2005
Posts: 2
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For all electrical power engener can visit new web site for electrical substation , tensformer, switchgear and protection at address http://www.sayedsaad.com
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Joined: Mar 2005
Posts: 1,803
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this site is all good technical info.
Alan
PS Guys check out the site! There's 3 pylons skipping for a start!
[This message has been edited by Webmaster (edited 07-27-2005).]
Wood work but can't!
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Joined: Jul 2002
Posts: 8,441 Likes: 4
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Sayed, Welcome to ECN!, Yes, this site is well worth a good look to anyone with Power Engineering or HV Systems in mind. Thanks for the link!. ![[Linked Image]](https://www.electrical-contractor.net/ubb/smile.gif) [This message has been edited by Webmaster (edited 07-27-2005).]
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Joined: May 2005
Posts: 54
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Sayedsaad,
a very informative and good site, i fully reccomend it for anyone who wishes a bit more information on power transfer and control.
Britspark
[This message has been edited by Webmaster (edited 07-27-2005).]
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Joined: Oct 2000
Posts: 3,669 Likes: 4
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(some unrelated comments removed to get back on topic - sorry for the disruption)
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Joined: May 2003
Posts: 2,876
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Ok this is darn cool... ![[Linked Image from sayedsaad.com]](http://www.sayedsaad.com/images/Twoer.gif)
Mark Heller
"Well - I oughta....." -Jackie Gleason
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Joined: Dec 2000
Posts: 4,293
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Welcome and Thank You!
Great Information!
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Joined: Jul 2002
Posts: 8,441 Likes: 4
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Guys, Having had the chance to sit down and have a good look at the offered material, this is a site worthy of being linked through here. Even the Transformer basics are very easy to understand. Wish I'd had something like this during my training as a Line Mechanic.
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Joined: Jul 2004
Posts: 49
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I had never heard of using a gas detector to detect faults on transformer. He must be using it to detect long-term events, such as arcing inside the tap changer of the transformer transformer. I would think a high speed differential relay would be a better choice to protect a transformer from internal fault current events.
I used to run the oil analysis program for about 100 transformers in a pulp and paper mill. One thing we always took action on was a transformer that was wet, ie had a hydrogen present in that 200 ppm range. I saw several units that failed above that range.
Good info, I want to look it over some more when I have time.
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Joined: Jul 2002
Posts: 8,441 Likes: 4
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GcEE, You would also have to think of the Hysteresis current of that relay coil upsetting the response time, as in a slight delay. It's a good call on the Gas Detector. ![[Linked Image]](https://www.electrical-contractor.net/ubb/wink.gif)
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Posts: 44
Joined: August 2005
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