25kV, 4 months ago to random

Welcome to another #RailwaysExplained thread... a while back I asked for ideas and
@DiegoBeghin suggested something on AC versus DC electrification. So here goes!

HOW IT WORKS - AC and DC electrification

Trains can be supplied with either Alternating Current (AC) or Direct Current (DC) electricity. If you don't understand the difference, check out https://learn.sparkfun.com/tutorials/alternating-current-ac-vs-direct-current-dc/all

#railways #OLE #OCS #OverheadLine

25kV, 7 months ago to random

Welcome to another #RailwaysExplained thread... a brand new one this time. A couple of weeks back @chris asked about specific challenges in electrifying railways in mountainous and forested terrain.

Lets first take a look at what characteristics mountain railways have which differentiate them from lowland ones...

#railways #OLE #OCS #OverheadLine

25kV, 9 months ago to random

Welcome to another #RailwaysExplained thread… this is my first completely new thread on Mastodon, and boy is it going to be an epic one.

HOW IT WORKS (AND WHEN IT DOESN’T) – DISCONTINUOUS ELECTRIFICATION

Something I get asked about A LOT is discontinuous electrification. A typical comment on social media will be something like “well with battery technology so readily available we can just electrify the easy bits and run on battery in between…”

#railways #OLE #OCS #OverheadLine

dominicstucki, 9 months ago to random

Railfans and railway professionals of Mastodon:
If you want to learn fascinating stuff about overhead line equipment and traction current ⚡ - a field of the railway system I don't know much about - do follow @25kV and make sure not to miss his excellent #RailwaysExplained threads he's gradually bringing to Mastodon: 👇
https://mas.to/@25kV/110962276174171304

25kV, 10 months ago to random

Another #RailwaysExplained thread... this one is another port over from the Site We Don't Mention. More to come!

HOW IT WORKS - SPARK GAPS AND SURGE ARRESTERS

One of the things that I spent a lot of time on back in 2019 was sourcing good quality images for the #OLEbook - getting the more obscure stuff from publicly accessible places was quite hard.

That's why I had to go all the way to North East England to hunt down this Spark Gap on the Tyne & Wear Metro

#railways #OLE #OCS #OverheadLine

25kV, 11 months ago to random

Another #RailwaysExplained thread here! This is my 2nd port over from the Site We Don't Mention. More to come!

HOW IT WORKS - OVERHEAD LINE STEELWORK SIZES

A thread about OLE systems, steelwork sizes and the general perception that we've got it wrong in the UK...

Ever wondered why there are so many #OLE #OCS different systems worldwide? After all there are only a handful of track forms.

Unlike track, OLE has two wobbly things interacting - the wire and the #pantograph.

25kV, 11 months ago to FormulaE

Hi all! I'm Garry, I'm a #railway engineer based in the UK specialising in the overhead line systems that supply power to #electric trains. I'm so convinced that electric rail is the future that I wrote a book about how it works - you can download it FREE at https://www.ocs4rail.com/downloads. I also post the odd #RailwayPhotos #RailwayPhotography . I'm going to be moving all my #RailwaysExplained threads over here and doing some new ones too