Just a question out of curiosity really.
We had our local 11Kv substation transformer replaced - the old one was 30
years old and decided it had had enough and blew up !
Southern Electric turned up after a couple of months with a large crane and
replaced it with a refurbished one. (they had "back-fed" us from a nearby
transformer in the meantime).
The bloke who installed the new one said it was rated at 400 amps on the Low
Considering there are about 50 or so houses in our street (each with a
100amp suppliers fuse) and 1 transformer - am I right thinking that we can
only use about 8 amps each before problems start ??
Also, when we were "back-fed" from our next nearest substation, which
presumably was a similar 400 amp transformer, this meant it was supplying
twice its normal load, so presumably 4 amps each ??
Do they Electricity companies rely on us all not having an electric shower
or cooking the Sunday roast at the same time ?!
Like I say, just curious !! How does it all work ??