Cunning Electrification On The North London Line
I took a trip on the North London Line from Highbury & Islington station to Richmond station.
I took various pictures on the way.
25 KVAC Overhead Electrification
East of Acton Central station, typical 25 KVAC overhead electrification is used.
It may need to be beefed up, if more large electric locomotives haul freight trains along the North London Line.
Gunnersbury Station
Gunnersbury station is a two-platform station with London Underground four-rail electrification.
It can be used by London Underground S-Stock and London Overground Class 378 trains.
It must help that both trains were built by Bombardier in Derby.
Kew Gardens Station
Kew Gardens station is a two-platform station with London Underground four-rail electrification.
As with Gunnersbury station, both types of train can use both platforms.
Richmond Station
Richmond station is both a through and terminal station.
Note.
- Platforms 1 and 2 are through platforms for South Western main line services.
- Platforms 3 to 7 are for terminating London Underground and Overground services.
- Platforms 1 to 3 have traditional third-rail electrification.
- Platforms 4 to 7 have London Underground four-rail electrification.
- If needed, it may be possible to add another platform between platforms 3 and 4.
It looks like a lot of flexibility has been built in.
I have a few general thoughts.
Getting The Voltages Right
London Underground’s system used to use 630 VDC for its four-rail system, whereas Network Rail’s system uses 750 VDC.
I wouldn’t be surprised to find out that both trains use quality power electronics that can work on a range of voltages. This would enable London Underground to up their voltage to the same 750 VDC as used by Network Rail.
In Chiltern Sets Out New Fleet Ambitions, I talked about how Chiltern Railways could use London Underground’s four-rail electrification between Harrow-on-the-Hill and Amersham stations to charge the batteries.
As an electrical engineer, I don’t think this is outrageous.
World’s Largest Floating Offshore Wind Farm Officially Opens
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Norwegian energy major Equinor, together with its partners, will inaugurate today the world’s largest floating offshore wind farm, Hywind Tampen
The story is according to Reuters.
This page on the Equinor web site, outlines the project.
Hywind Tampen is the world’s first floating wind farm built specifically to power offshore oil and gas installations, and is now supplying electricity to Equinor’s oil and gas fields Snorre and Gullfaks in the Norwegian North Sea.
With a system capacity of 88 MW it is also the world’s largest floating offshore wind farm and an important step forward in industrialising solutions and reducing costs for future offshore wind power projects.
With Hywind Tampen now operational, Equinor is now operating nearly half (47 percent) of the world’s offshore floating wind capacity.
This floating wind farm powering oil and gas fields will be the first of many.
The Anonymous Widower 