Powerlines

From: Daniel T. Burrows <danburrows_at_mindspring.com>
Date: Tue Apr 27 09:48:48 1999

>> > Take a close look at rural areas and there is only 1 High voltage line
>> > present.
>> > It is fed to the HT input of all the pole transformers.
>
>Same thing is done in rural areas in Oz. They are called SWR lines, which
>is TLA for Single Wire Run AFAIK.
>Not sure of the voltage, but I think it's around 8kv. (240v to
subscribers)
>They are somewhat unpopular, and are prone to surges and sags etc.
>Given the nature of the return path, (ground) and the way it would be
>affected by weather etc, this is not surprising.

I would think it would have a lot more surges and sags than it does. I
guess they manage to keep the HT runs short enough however. I have several
1 to 3 KVA UPS's here and rarely (except during storms) do they kick in.
Boy does it get noisy then with all their alarm beepers going.:) Can't wait
to move them out once I make room (and get batteries for) the 10 KVA online
UPS I picked up.

The HT lines I am on are around 14.5KV. The typical distribution lines I
have found vary from12KV to 14.5 in the different areas I have lived.
Currently in North Carolina.

Dan
Received on Tue Apr 27 1999 - 09:48:48 BST