New DEC museum entry :D - test-drb@ccmp.vtda.org

22 Feb 2007

Just for illustration; our electricity supply here in England comes up
...
 from the Fawley power station near Southamption at
132kV on pylons. It goes to a substation at Thatcham about two miles distant. Its
stepped
down to 11kV and distributed over a radius of up to five miles on wooden
poles with a metal T bar on top. In some areas its three phase and
others not. Now comes the aforementioned transformer. Its normally
mounted on one of the 11kV poles. It steps down to 235v and feeds a fair
number of houses. Our supplies are fused at 60A or 100A at each house. 

Rod Smallwood

-----Original Message-----
From: cctech-bounces at classiccmp.org
[mailto:cctech-bounces at classiccmp.org] On Behalf Of Tony Duell
Sent: 22 February 2007 21:15
To: cctalk at classiccmp.org
Subject: Re: New DEC museum entry :D

...

 Tony Duell wrote:
  (there are no 'pole pigs' over here)

 Is that always true? Sometimes on rural roads with just one or two 
 houses (and also individually on farms) I've seen pole-mounted 
 transformers and wondered what their function is - I'd assumed they 
 were step-down transformers from overhead line voltage (several KV I'd 
...
  guess) to 240VAC. Or do they do some completely
different job? 
I think you're absoluately right. But they normally supply more than
just one house, don't they?

OK, I was a little too definite in my original statement. I should have
said 'Pole pigs are rarely used in the UK, in towns/cities (at least),
many houses are supplied from the same transformer'.

-tony