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Old 09-17-2012, 10:36 AM   #21
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25 years??????
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Old 09-17-2012, 08:33 PM   #22
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Brian, is that written so dullards like myself can understand it, or is it more for the engineering types? Always looking for good reads related to what we do. Used price is certainly reasonable.
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Old 09-17-2012, 10:13 PM   #23
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Originally Posted by nrp3 View Post
Brian, is that written so dullards like myself can understand it, or is it more for the engineering types? Always looking for good reads related to what we do. Used price is certainly reasonable.
A bit more in depth that I could grasp at times, but worth owning and attempting to read.
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Ah, but I was so much older then, I'm younger than that now
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Old 09-17-2012, 10:29 PM   #24
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If you want to stay up all night for the next three weeks just google "stray voltage" "earth return" etc. all the POCO's now have a full time lawyer working on this problem.

Even the Electric Power Research Institute (EPRI), hired by all the POCO's, let it slip that up to 50% of all power returned to the generating stations is via earth return.
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Old 09-17-2012, 10:36 PM   #25
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The cost to correct this wiring design would be through the roof. Weighing the cost or rewiring against the few families and farms with issues the utility would win with not rewiring.

Get a copy of this.

http://www.amazon.com/gp/product/ima...283155&s=books

If done gradually over time the cost would only be slight in areas with 3 phase lines. All thats required is a double bushing transformer being installed. The cheapest way to do this is to replace single bushing units with double bushing units as they fail. The cost of a double bushing unit is only about $100 more compared to an average unit cost of $2000.

The cost however would be an issue for single phase lines as the extra phase would be a considerable cost even in new installations.

Sadly I think the utility in this case will fight to the bone not to acknowledge the problem. If they did it would be easier to legaly force them to correct the problem.
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Old 09-17-2012, 10:50 PM   #26
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If you want to stay up all night for the next three weeks just google "stray voltage" "earth return" etc. all the POCO's now have a full time lawyer working on this problem.

Even the Electric Power Research Institute (EPRI), hired by all the POCO's, let it slip that up to 50% of all power returned to the generating stations is via earth return.

I agree 100%. The problems of stray voltage will only get worse as non linear loads increase and as the system ages.

The above is a good example. The dairy land blockers were able to work well for 20 years, however the load on their system has increased to the point where not even those are helping anymore.
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