How much current flows through pylons?

[The Other Mike]

Better than your profuse verbal bollocks as standard

600kV 400kV 275kV 66kV, 33kV 11kV 3.3kV 415v around here there and everywhere in the UK. Involved in the design, operation and maintenance. Watched them put it in over many decades not as an uniformed casual observer from behind a barrier. No doubt some of those voltage levels will confuse the f*ck out of you. Feel free to behave like demented chicken.

That's because you somehow think everything is on the internet. It's not.

No one said it was used for 'distance transmission' whatever the f*ck that means. It's a distribution voltage used for short distance lightly loaded undergrounds at many locations in the UK.

If you maintain 11kV is 'part of the grid' as you have just done in a reply to Harry B elsewhere then the 3.3kV network running a mile from the 33kV/11kV/3.3kV substation to a brick bunker with a transformer, a bit of switchgear and fusing is also 'part of the grid' that you have never seen nor heard of this configuration is no real surprise as it's not on the internet.

[James Wilkinson Sword]

They recently replaced the substation across the road from me, which moved the voltage further from 230 (higher).

Not sure why they replaced it. It doesn't look bigger, and the old one didn't look that old.

Same here, and before I got LED lighting everywhere, the CFL and incandescent lights changed brightness a little. I have the lighting circuits connected to it aswell, to increase the lifespan of the bulbs.

Sounds like you have a more sensible electrician than I do.

I gave him a log of my voltages over a week, which he believed as his meter agreed with mine.

Ice storm? Where are you, the Outer Hebrides?

[gopalansampath]

"400V (240V phase-to-neutral)" is not right, it is 415V (240V phase to neutral)

[Harry Bloomfield]

The Other Mike presented the following explanation :

Another example I remember of a 3.3Kv feed was used in Doncaster. The

2x PS's were a mile and 3 miles from the main road. Each had their own sub-station transformed down to 415v all feeds were underground. The motors used a Wauchope start system, but the mile long 3.3Kv also fed a factory. They (tractor) factory was constantly complaining to the supplier of the voltage dropping as the pumps kicked in. It was not resolved whilst I was out there.

Another 3.3kv feed, on wooden poles, was used for a PS draining the fens. The original pump had been a wind driven pump, that had then been replaced with a pair of beautiful old diesel pumps, then finally a pair of 415v electric pumps. They were almost always at least two pumps, to allow for breakdowns and maintenance.

[The Natural Philosopher]

no examples of a 3.3kv feed in the UK that is shared between consumers has yet been provided.

I maintain that these are private links.

The discussions is about grid feeds to multiple consumers, not a private feed to specialised industrial customers

[James Wilkinson Sword]

Or 400V (230V phase-to-neutral)?

[Max Demian]

Bloody EU, stealing 10 of our good British volts. That's why I voted brexit.

[James Wilkinson Sword]

And we added 10 to theirs.

[charles]

I think they stopped doing that many years ago. There's a small development of 26 bungalows near us - built about 30 years ago - all on the same phase.

[charles]

when I worked with SESEB (c 1960) 11kV was the lowest voltage for bulk supply.

[charles]

Plenty of 11kV on wooden poles

[charles]

The National Grid uses 132kV and above; the rest is owned by the Local supply Company

[James Wilkinson Sword]

I guess it doesn't matter how many on each, as long as it's even on each substation.

[The Natural Philosopher]

I didnt specify *National* Grid.

[charles]

what other kind of "Grid " is there.

[damduck-egg]

A lot of the 132kV infrastructure owned by the old state owned CEGB when it was operated as part of the bulk transfer system which is what most people mean by National Grid was transferred to the area boards in England and Wales. This came about after much of it had been superceded by the later 275kV and 400kV so the 132kV network which was the original National Grid from the 1930's was reclassified as distribution and so fell into the local boards remit. Quite a long time ago now back in the 1970's I think it was but because the original National Grid with its 132kV got so well known even today a lot of people don't know the transfer took place make the assumption that 132kV = National Grid. . I think National Grid now only have 132kV lines in Scotland but with all the changes since privatization they may have acquired some again in England and Wales, the present private operators who succeeded the boards such as Western Power Distribution are still adding to their

132kV infrastructure sometimes replacing 33kV to increase capacity or as a way to link in a solar or wind farm over a reasonable distance, and as I pointed out elsewhere in the thread these 132kV lines are often on single wooden poles. They are easily recognisable as the large insulators are arranged in a Trident shape to get the conductor separation.

G.Harman

[The Natural Philosopher]

Oh dear.

Why dont you google it?

[charles]

I worked, albeit 50 year ago, in the electricity supply industry,

[tony sayer]

In article , damduck- [e-mail] scribeth thus

Ah! thought they were some odd 66 kV thing, some here near Royston Herts..

[The Other John]

?

Hopefully none unless there's a fault!