Typically 11 kV (or 6.6 kV) to 400 volt. Capacity ranges from 300 kVA to 2 MVA. In London we call them TCs (transformer chambers) and there are 30,000 of them. Elsewhere they are known as distribution substations, mostly fed via cable, a few by woodpole OHL in rural areas

Just examining the phasing on a tee off as I was trying to find an every day regular phase cross for my trainees. But this is a single phase tee off so it’s arbitrary. Still worth surveying tho. My wife loves our walks ⚡️

Ceci n'est pas une usine! The Brush factory in Loughborough has a distinguished history building locomotives. It also supplied electrical equipment for the original eurostar class 373 (TMST) trains. #Rail200

Op test on Reyrolle OBYR-14 132 kV, 5000 MVA, 2000 A ABCB 💥

Building up the cooler bank on a new 120 MVA 275/33 kV YNd1 transformer. The radiators work just like yours at home. We put warm fluid through them and the surface area cools the fluid and extracts heat from the transformer core and windings, allowing it to function at a safe working temperature 👍🏻

Hard at it ☀️💪🏻

The last of eight lovely DAR shots which me and Jade smashed out today in the West Midlands 👌🏻💪🏻👏🏻🥰

Mr and Alex looking at an old bakelite back DC board. Alex is wearing a knife switch mask 😆

"If you aren't in over your head, how do you know how tall you are?" -T. S. Eliot

Two trains with a direct link across two centuries: Locomotion was built by Robert Stephenson & Co in 1825. The firm later became part of English Electric and then GEC.Through a merger in 1989, GEC-Alsthom was created. It went on to build our original class 373 (TMST) eurostar trains. #Railway200

BREAKING: Rushanara Ali resigns as homelessness minister news.sky.com/story/politi...

Disaster averted 🫖

#Alphabetchallenge #WeekEForEasyE Electrical energy enabled 😁

Kids, yes your friends have gone on a package holiday to the beach. However, do they see stuff like this:

🎶Are friends Electric?🎶 This #pylonporn pic has certainly proved itself a friend in a number of #AlphabetChallenge categories! Well worth lying down in the wet grass for 😂 #WeekEforEasyE #MobilePhotography 📷

Renewables have powered over 50% of the UK’s electricity for the first time on record. Clean, secure, homegrown energy = lower bills, good jobs, climate action and freedom from fossil fuel markets we can’t control. www.gov.uk/government/s...

The new pool looks very inviting 🏊‍♂️🏊‍♀️🏊

Part of our original supergrid, Tower ZC15, a fine L2 tension tower, shares a recreation ground with the good people of Watford, conveying vital energy to society continuously since 1956 🇬🇧⚡️💡

How Britain privatised itself into failure Britain outsourced its state – now private firms profit while public services crumble yorkshirebylines.co.uk/politics/the...

Nothing good has come of privatising the UK’s critical national infrastructure, so there is now a strong case for renationalising northwestbylines.co.uk/business/why...

Route ZB (1955) on L2 towers carrying the Elstree - Warley 275 kV circuits around the top of the M25 from Herts to Essex. I hope these protestors appreciate the majesty of an L2 suspension tower 😍

Me too actually

The Onshore Wind Council has had its first meeting! Delighted to be working with experienced people from across industry, trade unions, community groups and devolved governments to drive forward our ambition for one of the cheapest and fastest to build sources of power we have.

Cheeky Park Run before showing the Hackney Society around my local substation this afternoon ☔️🌂🌧️

Tea 🫖 Lolly pop sticks 🍭 Bhosale Box ⚡️👌🏻

We’ve replaced many of our G Units with digital or numerical solutions now. The old relays make super ornaments. Of these two EE VAR 82 relays, which version looks best? Blue or white? Both cleaned up and overhauled by me 🪛💡

A red kite catching its breakfast from the hide at Horn Mill Trout Farm, Rutland, last month #birds #ukbirding #ukwildlife #birdphotography #naturephotography

English Electric VAR82D ‘G Unit’ to TPS 12/12. The mainstay of transmission DAR since late 1964 😍

Hugely significant investment in our electricity grid - unlocking the potential of clean power right across the country. Great to visit Scottish Power in Glasgow to meet some of their supply chain and delivery partners and tour the transmission and distribution control centre!

For @engineerlondon.bsky.social from a very busy field in Somerset

Thank you @nataliegreenpeer.bsky.social Please see my submission to the Subsidy Advice Unit on why Drax should receive no more public money👉 scrapcc.org/BOSWELL-DRAX...

20132 & 20118 running around the stock after arrival at Kyle of Lochalsh earlier. After working their way to the other end, they then shunted the stock over from P1 to P2, the lesser used platform at Kyle

Morning is the sunrise to flood the horizon with golden light. 🌅 Good Morning! ☀️ #summer #morning #june

A nice OCB used for training and inspiration nowadays

“It was renewables that did it!” That was the headline after Spain’s blackout on April 28. But the official report published today points to other factors: chain reaction of overvoltages led to cascading generation disconnections. Human error played a big role too. media.licdn.com/dms/document...

English Electric VAR82D ‘G Unit’ to TPS 12/12. The mainstay of transmission DAR since late 1964 😍

Disco Prison 🕺🏻🪩

400kV 60th birthday party 🥳 Supergrid engineers past and present unite to celebrate six decades of 400,000 volt transmission

The 400kV supergrid system of England & Wales turns sixty years old TODAY 🎉🍾🎂🥳

Energy security. Jobs and investment. Apart from in Scotland, because of the SNP's ideological objection to new nuclear. Scottish Labour will change that.

Always nice when 14yo daughter sends a tower photo on her way home 😊 @engineerlondon.bsky.social

Holidaying in the valleys 🏴󠁧󠁢󠁷󠁬󠁳󠁿🐑🐏

Put new feet on our Mk5G and bought a new tonearm cable. A 90 deg DIN plug is a tight fit on the 1210 but I’m delighted with this stereo image. TOTO’s “Only the Children” featuring drums n bass from the Porcaro brothers 👌🏻🔊🔊💙

It’s always the little wires which make the big wires work 💪🏻

Popped around my local area and I thought it’d be funny to do this photo in front of a NIMBY poster.

Label-i-ness is next to Godliness I always say 🏷️🪛🔩👍🏻

It’s the electrical widow’s birthday today. And I’ve had to leave very early to tinker with some bus zone. But I think she’ll cope without me until tonight’s dinner date 🌹