And electronic seat reservations, and plug sockets, at a lot of lighting, and Wi-fi, and TV Screens / PA stuff, and electronic toilets etc. There’s quite a power draw!
But most of that won’t take power in a siding with no passengers??
And electronic seat reservations, and plug sockets, at a lot of lighting, and Wi-fi, and TV Screens / PA stuff, and electronic toilets etc. There’s quite a power draw!
There was a thread discussing it on one of these forums a few years ago, started by one of those residents, who was seeking information to use in their "discussions" with Chiltern. I think it was soon after that that Chiltern began installing gensets in the DVTs partly (AIUI) to provide ETS power, which may have solved the issue.There's a Marylebone residents campaign group that have been engaging with Chiltern for quite some time, they definitely noticed when 67s were swapped for 68s.
I didn't think of TV screens.And electronic seat reservations, and plug sockets, at a lot of lighting, and Wi-fi, and TV Screens / PA stuff, and electronic toilets etc. There’s quite a power draw!
If I remember correctly did the class 68s used on the fife circle move to an alternate depot for stabling overnight due to the noise they caused to local residents.
It's likely the HVAC system draws more power than on older coaches. At 0500 in winter it'll be working reasonably hard to heat up all the coach interiors. I expect the kitchen / galley equipment will also draw more power than on older coaches, although less need for that in the depot.I didn't think of TV screens.
Surely the reservation system is simply some tiny LEDs and a circuit board? I would have thought something like a Raspberry Pi would suffice?
Lighting - similar to a Mk 3 coach?
WiFi - a home router typically uses around 20W, so how much would 5 coaches use? I wouldn't have thought there would be more than 2 antennae per coach.
Power sockets - potentially high draw, but not in use in sidings. At terminal stations, surely they could be turned off to reduce draw? (When I was up in Liverpool in the New Year passengers weren't allowed on the Mk 5s until a few minutes before departure, so it wouldn't matter anyway.)
not a lot of power drawn by these "accessories" but the aircon is a different kettle of fish altogether.And electronic seat reservations, and plug sockets, at a lot of lighting, and Wi-fi, and TV Screens / PA stuff, and electronic toilets etc. There’s quite a power draw!
I think we need two threads. One for the moaning minnies to grumble about the noise, the other for cranks to eulogise the thrash!Personally I don't think the 68s are loud enough. Get that volume cranked up, I say!
I think we need two threads. One for the moaning minnies to grumble about the noise, the other for cranks to eulogise the thrash!
From what I've read online the depot at Scarborough has shore supply installed. That's no good when the sets need prepping at early hours though.
There was a thread discussing it on one of these forums a few years ago, started by one of those residents, who was seeking information to use in their "discussions" with Chiltern. I think it was soon after that that Chiltern began installing gensets in the DVTs partly (AIUI) to provide ETS power, which may have solved the issue.
Not being familiar with depot shore supply, is there a reason why it cannot be used for supplying the stock with power until the loco is ready to take over and move the set? Is it not like the ground power supplied to aircraft when they are at gates?
It's not a bad design, it's a bad specification. Likely it didn't include any limits on noise levels or noise quality.Bad CAF design strikes again
CAF didn't make the locomotives, so they wouldn't have been given noise limits for the locomotive. The spec requirement that'd be relevant to the coaches is a limit on power draw, and the people that wrote the spec may not have appreciated that they'd need to limit power below a certain amount to limit the locomotive noise.It's not a bad design, it's a bad specification. Likely it didn't include any limits on noise levels or noise quality.
If I ask you to build a house, specify how many rooms, where the lights go, what materials to use, etc. then I can't really complain if you paint it day-glo pink if I never said what colour it should be.
If noise targets *were* given and it doesn't meet them, than that's another story.
I like the 68's noise,, I live very close to the Edinburgh south suburban loop, they go by with the ecs for the Fife circulars. They're fine by me. some mornings I hear a class70 on the approach,,now that has some thrash!!
I like the 68's noise,, I live very close to the Edinburgh south suburban loop, they go by with the ecs for the Fife circulars. They're fine by me. some mornings I hear a class70 on the approach,,now that has some thrash!!
In this age of desperately trying to reduce power usage how have they managed to so dramatically do the opposite?So a set of coaching stock that is ETS rated five times higher than Mk3 stock isn't bad design?
The locos aren't the problem, they're quiet when they aren't being demanded of 400kW ETS supply.
We don’t know the actual power consumption of the mk5s. On the class 68 once ets is activated a faster idle is required to supply the necessary ets voltage. Same as other ets diesels.
I doubt very much mk5 day Coach aux loads are much different to any other comparable vehicle with a max of around 30kw and a typical draw of approx 12 kw. Very much depends upon ambient temp and the internal temperature as to how hard hvac is working. Lighting is 50% lower these days with led instead of tubes but pis systems use up the saved lighting power.
The sleepers are a different kettle of fish however!
Is it really 400kW in reality?So a set of coaching stock that is ETS rated five times higher than Mk3 stock isn't bad design?
The locos aren't the problem, they're quiet when they aren't being demanded of 400kW ETS supply.