In reply to  Mike Carrell's message of Wed, 26 Mar 2008 21:26:32 -0400:
Hi,
[snip]
>Current practice is thanve local feeds down the street at a few kilovolts 
>with pole transformers every block or so to convert to house uasge. 
>Curiously, this system uses an earth return on the high voltage side of the 
>transformer. With a good grounding rod, the earth resistance is about 50 
>ohms, I think. Although somwhat lossy, it is cheaper than running more 
>copper to the transformers.
[snip]
I didn't suggest replacing this portion of the grid. Just that portion between
the generators and the substations.

Regards,

Robin van Spaandonk

The shrub is a plant.

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