On 07/07/2019 18:15, Tim+ wrote:
newshound wrote:
On 07/07/2019 15:50, The Natural Philosopher wrote:
On 07/07/2019 15:46, Tim+ wrote:
Harry Bloomfield wrote:
The Natural Philosopher has brought this to us :
It is three phase and the rail is one phase and is earthed.

Phases are only phased with respect to each other, they dont care
about their
relationship with 'earth'.

I see how that would work now. I had in mind star, with the centre
point grounded - a delta output transformer with one point to ground
would do it.


Oh well,Im glad someone does. ;-) Our physics classes never
progressed to
three phase power when I was at school and Ive never had a need to
understand it in any depth (or at all really) since then.

Blimey.

I sort of thought that anyone in a DIY group would have basic electrical
knowledge


The only one I have ever actually worked on was at my mate's small
business. Unless you have three phase at home for a lathe I'd have
thought even fairly experienced DIY people wouldn't come across them.


Yeah, but then youre forgetting that TNP has to throw out gratuitous
patronising comments regularly.

Three phase power is discussed here pretty often.

Indeed I believe you yourself brought it up in this thread

I told you how it probably was set up, you complained you didnt
understand, I pointed you to a web page that explained it.

Whatr is patronsioing about that?

It was only someome moaning that tehy couldnt ne expected to undersatdn
or summat that irritated me. I study **** I dont understand every day.
Do it yourself!

Tim



--
€œA leader is best When people barely know he exists. Of a good leader,
who talks little,When his work is done, his aim fulfilled,They will say,
€œWe did this ourselves.€�

ۥ Lao Tzu, Tao Te Ching