Western Link HVDC interconnector makes landfall in Scotland

Jan 24, 2017 36 Replies

Yes. The link points to carbon fibre and exotic aluminium.

Yes , I was getting the sequence mixed up, 132, 275, 400. I never worked on them, just cut trees under them.

AJH

In article , snipped-for-privacy@loampitsfarm.co.uk scribeth thus

That must have been fun on damp days;?..

You mean because of increased risk?

Trees/branches are all categorised depending on distance from conductors , voltage of conductor and what bits might fall on conductor. Any that are too dangerous to be worked on live require a shut down.

AJH

I see that there are (or were) actually two UK-Norway interconnects on the table: one, still on the table and progressing AIUI, would come ashore at Blyth in Northumberland,

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while the other, back in the cupboard for the moment, would come ashore at Peterhead in Aberdeenshire
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This is what NG is using and has been for quite some time now.

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And the Belgians

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This pdf details the NG strategy on network losses and the increases in overhead line capacity (from page 7 onwards)

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The former is most definitely 'on' Contracts were placed for cables and laying and the converter stations some time ago.

In article , Tim Streater scribeth thus

Yes oddly enough its usually thought of an RF issue but i seem to remember it was a possible problem somewhere at much lower frequencies.

En el artículo , tony sayer escribió:

I thought they ran HVAC lines at higher frequencies. 400Hz seems to come to mind.

Not for the "standard" 275/400 kV "supergrid"

En el artículo , newshound escribió:

Thanks.

Nah. Not really mate.

Problems of power lines are more interline and to-ground capacitance and resistance and phase shifts, if its long enough. That's why DC.

No.

Never heard of that

Indeed I'm buggered if i can remember where that article was it was about a power distribution system where you wouldn't have thought skin effect would be significant but it did turn out to be so. I'll post if a can remember where it was!.

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