Hornby announce Class 800 IEP

[John ks]

Thanks for that Chris, so the driving car(s) traction motors are supplied with power from the diesel engines in the centre cars via batteries or is the power generated direct to the traction motors from the alternators.  If this is the case how is the phase balancing achieved.

 

Mike

Phases are balanced by having the same load on each phase 

If the motor control is  a VFD(variable frequency drive) & the motors at 3phase the balancing the phases ii taken care of by the VFD

 

If you meant how are the Gensets synchronised then this would be done by the on-board computers

 

When running on OH the transformer would be suppling power to the MC(motor control) gear & the genset sync sw's would be open

 

To change to diesel power the driver would operate a switch & the computer would take over.

It would start the Gensets & when it was up to proper running paramaters it would close the sycnro sw 

The OH supply syncro sw would be turner off & the Set would be running on 1 or more Gensets as required

 

 

 

The diagram is my thoughts on how the main traction components could be connected

 

 

 

As a retired electrician this is how I think it could be done

Of coarse I could be completely wrong

 

With regards to batteries to the best of my knowledge they are mostly for starting gensets, rising pantographs, supplying computers with power ,when the pan is down & gensets aren't running & emergency lighting

 

John

[TFR]

 

Test Train packs just arrived and I'm totally blown away by the detail/printing - incredible model. 

 

Still hoping Hornby bring out the coaches for this 

Edited March 15, 2018 by TFR

[robf]

Mine arrived this morning as well.  I think it's superb.  It is a shame about no centre cars, once Hornby sort out the derailng issue a quick respray could be in order!

 

DSCF5618 by robfrowen, on Flickr

 

DSCF5621 by robfrowen, on Flickr

 

DSCF5624 by robfrowen, on Flickr

[TFR]

They look fantastic on the layout Rob

[Legend]

what would be the correct centre coaches? Just unliveried at moment ie white? Looks a lovely model but can't help think looks a little silly just as a 2 car. As others have pointed out it actually wouldn't be possible to move in the real thing

Edited March 15, 2018 by Legend

[Coryton]

Phases are balanced by having the same load on each phase 

If the motor control is  a VFD(variable frequency drive) & the motors at 3phase the balancing the phases ii taken care of by the VFD

 

If you meant how are the Gensets synchronised then this would be done by the on-board computers

 

When running on OH the transformer would be suppling power to the MC(motor control) gear & the genset sync sw's would be open

 

To change to diesel power the driver would operate a switch & the computer would take over.

It would start the Gensets & when it was up to proper running paramaters it would close the sycnro sw 

The OH supply syncro sw would be turner off & the Set would be running on 1 or more Gensets as required

 

 

 

The diagram is my thoughts on how the main traction components could be connected

 

 

800 power.png

 

As a retired electrician this is how I think it could be done

Of coarse I could be completely wrong

 

With regards to batteries to the best of my knowledge they are mostly for starting gensets, rising pantographs, supplying computers with power ,when the pan is down & gensets aren't running & emergency lighting

 

John

 

This probably isn't the right thread, but....

 

Your scheme makes sense but if my memory is correct then - as seems to be the norm for high speed unit electric trains - there is what looks like a high voltage (single phase) bus running along the top of the train.

[Revolution Mike B]

Just to throw my spanner in....

 

The IEP (IET) 5 car sets use 3, 12Cyl 'Power Packs' supplied by MTU that were specifically developed for this train. The 9 car sets use 5 Power Packs and therefore it seems that there must be an intermediate trailer of some description as mentioned previously.

 

As for the Test Train, I can't understand why Hornby haven't produced the coaches - being really picky, surely this is a misleading description of goods?     

[Purley Oaks]

Although Hornby show the Test Train packs as sold out, the online New Modellers Shop show one for sale at RRP, whereas a well-kent auction site has them at considerably more...

And, yes, be good if the centre coaches were added at some stage.

Mal

[MrB]

With regards centre coaches, depends what happens with the Virgin East Coast franchise, if they come out in DFT livery, Virgin or not?

[GEOEng03]

In case anyone missed them the first time @ a respectable price as well. Have been quite impressed with Jadlam, purchasing a few Hornby Items at very good prices recently (not everything is a good price though and no Bachmann). Managed to sweet talk my wife...

 

https://www.ebay.co.uk/itm/Hornby-Loco-R3579-Hitachi-IEP-Bi-Mode-Class-800-0-DPTS-DPTF-Test-Train/332591054739?_trkparms=pageci%3A36dad1b1-2b78-11e8-b5f5-74dbd1807a7a%7Cparentrq%3A3e6a94d11620a9c140c9e359fffa3e34%7Ciid%3A1&_trksid=p2481888.c100678.m3607#shpCntId

 

Cheers

Edited March 19, 2018 by GEOEng03

[GEOEng03]

Bit of a deviation from the superb model, but there was an interesting article in this months Rail Express that shows the electric 800 (54s to 60mph) are still slower than a 220 (53s to 60mph) and the sister 395 (38s to 60mph) class. This despite the month before showing the 800 on diesel to be quite lacking at 100s to 560mph. The latter being slower than a 2+8 HST.  I do wonder how the upspec'd 802xxx will fair. Haven't been on one yet (still lucky to have West Country HST's serving all my trips in and out of London.

 

Never paid much attention to this section of the magazine, but will go back through back issues to see how other units faired!   

Cheers

[Darius43]

Bit of a deviation from the superb model, but there was an interesting article in this months Rail Express that shows the electric 800 (54s to 60mph) are still slower than a 220 (53s to 60mph) and the sister 395 (38s to 60mph) class. This despite the month before showing the 800 on diesel to be quite lacking at 100s to 560mph. The latter being slower than a 2+8 HST. I do wonder how the upspec'd 802xxx will fair. Haven't been on one yet (still lucky to have West Country HST's serving all my trips in and out of London.

 

Never paid much attention to this section of the magazine, but will go back through back issues to see how other units faired!

Cheers

100 seconds to 560mph sounds mighty fast to me

 

Cheers

 

Darius

Edited March 19, 2018 by Darius43

[St. Simon]

Bit of a deviation from the superb model, but there was an interesting article in this months Rail Express that shows the electric 800 (54s to 60mph) are still slower than a 220 (53s to 60mph) and the sister 395 (38s to 60mph) class. This despite the month before showing the 800 on diesel to be quite lacking at 100s to 560mph. The latter being slower than a 2+8 HST.  I do wonder how the upspec'd 802xxx will fair. Haven't been on one yet (still lucky to have West Country HST's serving all my trips in and out of London.

 

Never paid much attention to this section of the magazine, but will go back through back issues to see how other units faired!   

Cheers

This has been discussed on multiple occasions in this thread: http://www.rmweb.co.uk/community/index.php?/topic/94506-class-800-updates/

 

Let's keep this thread for the model.

 

Simon

[St. Simon]

Just to throw my spanner in....

 

The IEP (IET) 5 car sets use 3, 12Cyl 'Power Packs' supplied by MTU that were specifically developed for this train. The 9 car sets use 5 Power Packs and therefore it seems that there must be an intermediate trailer of some description as mentioned previously.

 

 

Yes, but they have inner bearing bogies (like a 220), so need a different bogie moulding to model the non-motored coaches

 

Simon

[Ron Ron Ron]

With regards centre coaches, depends what happens with the Virgin East Coast franchise, if they come out in DFT livery, Virgin or not?

 

 

I'm not sure what that has to do with the Test Train pack, as the centre coaches for that would be in plain grey/white (with the appropriate graphics).

 

Note that Hornby haven't yet revealed or produced an example of the Class 800 in any sort of VTEC livery.

 

 

.

[Revolution Mike B]

Yes, but they have inner bearing bogies (like a 220), so need a different bogie moulding to model the non-motored coaches

 

Simon

 

I wasn't referring to the model Simon

[GEOEng03]

I wasn't referring to the model Simon

Had thought and typed as much Mike, then thought better of it

[Coryton]

This has been discussed on multiple occasions in this thread: http://www.rmweb.co.uk/community/index.php?/topic/94506-class-800-updates/

 

Let's keep this thread for the model.

 

Simon

 

I agree this is the wrong thread for it, but my recollection from the other thread is of discussion of poor performance on diesel only - I don't recall any mention of it being somewhat lack-lustre on electric power - quite the reverse in fact.

[St. Simon]

I wasn't referring to the model Simon

 

I know, but I was trying to kill two birds with one stone!

 

Simon

[GEOEng03]

OK, so moving swiftly back to the model itself. Has anyone had a repaired unit back from Hornby and did they explain what they had done to fix the problem - I may have missed this, so apologise if I have... 

 

I had spoke with Rails and they had been informed for customers to call direct to Hornby.  I duly tried and had to wait and decided to drop a email for follow up. Will see how they respond to that.

 

I can see many of the coach pack being purchased for respray later this year as well... Unless they decide to release white coaches. 

Cheers

[robf]

OK, so moving swiftly back to the model itself. Has anyone had a repaired unit back from Hornby and did they explain what they had done to fix the problem - I may have missed this, so apologise if I have... 

 

I had spoke with Rails and they had been informed for customers to call direct to Hornby.  I duly tried and had to wait and decided to drop a email for follow up. Will see how they respond to that.

 

I can see many of the coach pack being purchased for respray later this year as well... Unless they decide to release white coaches. 

Cheers

I telephoned Hornby last week and was told to phone back this week for an update on the fix.

[GEOEng03]

I have had a response from them, within the quoted timescales.  They have given me an address to return the item to so that they can check. I have e-mailed back and asked who is covering the postage on a RRP £395 price loco, given its weight and the known issues to them.  I would hope that they will refund or provide postage labels for this.

Cheers

[SteveC32]

Hornby collected my IETs last Tuesday and I was told that they should take about a week to fix them, so hopefully I’ll get an ‘update’ email from them tomorrow.

[martin_l_jones]

Mine was collected on the 15th, but Hornby never said it would be a week. I guess the first issue is how quick DPD dropped the package off. I’m very interested to hear a success story without it being a bodge of filing bogies and or body sides...

[royaloak]

I agree this is the wrong thread for it, but my recollection from the other thread is of discussion of poor performance on diesel only - I don't recall any mention of it being somewhat lack-lustre on electric power - quite the reverse in fact.

They go like excrement off a digging implement on electric, that has never been in doubt.