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Dynamic Line Rating
Posted: Mon Jun 09, 2025 4:19 pm
by dan_b
Seems good - retrofitted tech that enables more capacity out of the existing transmission hardware - but how does it work?
https://renews.biz/101016/national-grid ... -new-tech/
Re: Dynamic Line Rating
Posted: Mon Jun 09, 2025 4:34 pm
by Countrypaul
I seem to remember a previous thred about this sort of thing. iirc lines are normally limited to the capacity of worst case conditons so hot weather wth no wind, by moanitring the lne they can increase that to take advantage of more suitable conditions and put more power through - or at least something along those lines!
Found the thread:
viewtopic.php?f=18&t=3045&p=45873&hilit ... nes#p45873
Seems the start of that thread was by a dan_b

Re: Dynamic Line Rating
Posted: Mon Jun 09, 2025 5:03 pm
by nowty
The sensors are a few weather stations mounted on the pylons, its hardly rocket science.
https://www.linevisioninc.com/sensors-and-software
Re: Dynamic Line Rating
Posted: Mon Jun 09, 2025 5:56 pm
by dan_b
Oh dear Iām losing my marbles!
Countrypaul wrote: āMon Jun 09, 2025 4:34 pm
I seem to remember a previous thred about this sort of thing. iirc lines are normally limited to the capacity of worst case conditons so hot weather wth no wind, by moanitring the lne they can increase that to take advantage of more suitable conditions and put more power through - or at least something along those lines!
Found the thread:
viewtopic.php?f=18&t=3045&p=45873&hilit ... nes#p45873
Seems the start of that thread was by a dan_b
Re: Dynamic Line Rating
Posted: Mon Jun 09, 2025 6:40 pm
by Stinsy
Seems obvious really. Transmission lines are rated for the hottest day of the year with zero cooling wind. However we have the highest demand on cold days and the requirement to shift the most power on windy days. So they increase the max allowable current on cold/windy days...