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.