ELTEK Flatpack2 48/2000 (eaton alternative)

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striker54
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ELTEK Flatpack2 48/2000 (eaton alternative)

Post by striker54 » Mar 09, 2015 5:38 pm

Hello guys,

Searching for a adaptto charger i've came across with this power supply very similar to the Eaton APR48-3G, but a little better IMO.
I made a little comparison with the two power supplies / module rectifiers:

Operating Voltage range: 85-300V AC (ELTEK) --------- 90-300V AC (EATON)

Efficiency (max): 92.5% (ELTEK) ---------- 92.0% (EATON)

Power output: 2000W @ 185-275Vac (ELTEK) ----------- 1800W @ 208-240Vac (EATON)
850W @ 85Vac (ELTEK) ----------------- 900W @ 100Vac (EATON)

Default output voltage: 53.5V (ELTEK) ---------------- 54.5V (EATON)

Adjustable Voltage range: 43.5-57.6V (ELTEK) -------------- 43.0-57.5V (EATON)

Weight: 1.9kg / 4.2lbs (ELTEK) ----------------- 1.7kg / 3.7lbs (EATON)

Dimensions: 109x41.5x327mm / 4.25x1.69x13" (ELTEK) ------------ 130x42x266mm / 5.1x1.6x10.5" (EATON)

here is the datasheet:
Datasheet Flatpack2 48-2000.pdf
Datasheet
(139.99 KiB) Downloaded 432 times
They have also a 3000W version:
Datasheet - Flatpack2 HE Front End Rectifier.pdf
3000w version
(261.25 KiB) Downloaded 422 times

and a 48v-60v version:
Datasheet Flatpack2 48-60-2000 HE.pdf
48v-60V
(1.07 MiB) Downloaded 323 times
I bought it new for less than 100EUR with shipping from here: http://www.ebay.com/itm/161586265000

Pictures:
front panel.JPG
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DSC05463.JPG
(130.54 KiB) Downloaded 96 times
DSC05464.JPG
DSC05464.JPG (104.57 KiB) Viewed 6066 times
DSC05451 (2).jpg
(147.83 KiB) Downloaded 96 times
rear end.jpg
(152.93 KiB) Downloaded 96 times
Pinout:
pinout2.jpg
pinout2.jpg (90.82 KiB) Viewed 517 times
Type of connectors:
eltek connectors.jpg
eltek connectors.jpg (47.97 KiB) Viewed 6066 times
I've flattened some female bullet connectors to power on and to make a charge test:
Charge test.jpg
(97.31 KiB) Downloaded 96 times
I didn't try to push more than 2000W from the ELTEk (i've limited the maximum current from power supply in adaptto to 37.4A).
I will try later to see if i can push more power.

According with the datasheet the ELTEK can adjust the voltage output but i don't know how to adjust it (for now). I know that it is possible with a Module Controller that connects via CAN but without it i don't know how.I really appreciate if someone could help with the voltage adjustment.

Here some user guides and tests that i found about the ELTEK:https://www.dropbox.com/sh/m9y36nhvzhc3 ... AED9a?dl=0

Best Regards.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by pm_dawn » Mar 10, 2015 7:08 am

I have been looking to make a connection board for these Eltek Flatpack rectifiers.
They can be series or parallell connected in what ever config.
I have a controller for it and has been looking at sniffing the CAN traffic and implement voltage/current adjustment that way.

A nice PCB that takes the Line connections out to a large screw terminal and the CAN to a smaller screw terminal would be perfect.

Holler if I can contribute to some joint info effort.
Eltek has a lot of nice rectifiers I have like 10 Flatpack2 and 6 Flatpack 2 HE which is the latest version.

REgards
/Per

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by BoomerChomsi » Mar 16, 2015 3:16 pm

Thanks for sharing looks a better deal than Eaton APR48-3g.
But too bad the voltage adjust problem...

What is output voltage of this unit?

Thanks!
Believe and Do

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by pm_dawn » Mar 17, 2015 9:54 am

My flatpack2 delivers 53.80v at no load.

/Per

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by BoomerChomsi » Mar 17, 2015 12:05 pm

Thanks !

Too bad man...I need max. 52V (otherwise my charger will report a error) :oops:
Believe and Do

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by Ohbse » Mar 29, 2015 10:21 pm

Bump for an excellent charger option. There are a number available from this seller:

http://www.ebay.com/itm/Eltek-Flatpack- ... 25a22b20ff

Note that these are the 2000w HE model and are brand new. These are 96% efficient, so cool running and virtually silent.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by striker54 » Mar 30, 2015 2:00 am

Ohbse wrote:Bump for an excellent charger option. There are a number available from this seller:

http://www.ebay.com/itm/Eltek-Flatpack- ... 25a22b20ff

Note that these are the 2000w HE model and are brand new. These are 96% efficient, so cool running and virtually silent.
I also bought mine from this seller. It's at a very good price.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by Dirtech » Apr 28, 2015 10:34 am

Hey guys,
What cables did you buy the connect this psu to the mains and adaptto?
Thanks

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by striker54 » Apr 28, 2015 4:46 pm

For the mains i have used a 3 conductor 1.5mm2 cable and for the adaptto coil i installed a 4mm bullet connectors with 10AWG silicone cable.

I will post some pictures till the end of the week.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by megacycle » Apr 29, 2015 3:17 am

pm_dawn wrote:My flatpack2 delivers 53.80v at no load. /Per
What's the voltage under load, does it hold at 53.8.V?

Found a mod page, not sure of its reliability.
http://www.ea1ddo.es/Eltek_FlatPack2/El ... Pack2.html
Gokart A123 80V
300A Kelly Controller
PM72301 motor

15S lipo
mongoose frame
mini monster controller
500W funboy
Speedict Mecury

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striker54
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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by striker54 » Apr 30, 2015 1:37 am

megacycle wrote:
pm_dawn wrote:My flatpack2 delivers 53.80v at no load. /Per
What's the voltage under load, does it hold at 53.8.V?
I've done a test and under full load (2000w output) the voltage drops 2.3v.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by striker54 » Apr 30, 2015 1:46 am

megacycle wrote: Found a mod page, not sure of its reliability.
http://www.ea1ddo.es/Eltek_FlatPack2/El ... Pack2.html
Awesome! :grin:
I will try to get more information.
Thanks.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by megacycle » Apr 30, 2015 4:01 am

striker54 wrote: I've done a test and under full load (2000w output) the voltage drops 2.3v.
Hi Striker, was the measurement taken at the power supply terminals?
Gokart A123 80V
300A Kelly Controller
PM72301 motor

15S lipo
mongoose frame
mini monster controller
500W funboy
Speedict Mecury

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by striker54 » Apr 30, 2015 4:39 am

megacycle wrote:
striker54 wrote: I've done a test and under full load (2000w output) the voltage drops 2.3v.
Hi Striker, was the measurement taken at the power supply terminals?
Yes.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by megacycle » Apr 30, 2015 5:05 am

striker54 wrote: Yes.
Yeh getting that top end up to 58V for 16S LiFePo or 14S Lipo would be good for some or seriesed at 50V+50V for 24S Lipo

I'll be running 21S Lipo, so two supplies seriesed up for 44V+44V, so cranking it down to about to 42V is my target.
Gokart A123 80V
300A Kelly Controller
PM72301 motor

15S lipo
mongoose frame
mini monster controller
500W funboy
Speedict Mecury

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Dirtech
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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by Dirtech » May 08, 2015 10:28 am

Would still love to see that wiring setup striker!

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by striker54 » May 08, 2015 1:53 pm

So here it is the wiring setup that i've done without soldering directly on the PSU.

I've used a little bit of Stripboard and solder the wires to be similar as the pcb conector of the first post:

Top of the board:
DSC05691.JPG
top
DSC05691.JPG (143.65 KiB) Viewed 5478 times
It was needed to remove some thickness of the stripboard with a dremel to be possible to plug it to the PSU

Bottom of the board:
DSC05692.JPG
bottom
DSC05692.JPG (143.5 KiB) Viewed 5478 times
See that the earth connection don't pass to the top of the pcb because that is where is located the pins for the CAN communication

Some more pictures:
DSC05687.JPG
DSC05687.JPG (142.25 KiB) Viewed 5478 times
DSC05689.JPG
DSC05689.JPG (137.75 KiB) Viewed 5478 times
Final result:
DSC05686.JPG
DSC05686.JPG (137.75 KiB) Viewed 5478 times
Till now I've done more than 15 charges at full rating (2000w) without any issues.

Sorry for the delay. :oops:

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by striker54 » May 08, 2015 1:59 pm

striker54 wrote:
megacycle wrote: Found a mod page, not sure of its reliability.
http://www.ea1ddo.es/Eltek_FlatPack2/El ... Pack2.html
Awesome! :grin:
I will try to get more information.
Thanks.

Arghhh.
The mod in that link is for the "Flatpack 2" and the version that i have is the "Flatpack 2 HE".
I look a little bit at the internals and they are a little diferente, at least the position of the board that we need to modify is not in the same place.
HE version:
PSU internals.jpg
(167.23 KiB) Downloaded 72 times
I will try to investigate a little more when i get some free time :roll:

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by Dirtech » May 08, 2015 2:25 pm

I like what you have done! I think I will buy a kettle power lead with 13A fuse and solder a similar board. I appreciate the help.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by megacycle » May 08, 2015 4:14 pm

striker54 wrote: Arghhh.
The mod in that link is for the "Flatpack 2" and the version that i have is the "Flatpack 2 HE".
I look a little bit at the internals and they are a little diferente, at least the position of the board that we need to modify is not in the same place.
Might be lucky, does the small daughter control board look the same as in the 'Flat pack 2?
I'm wondering what differences the 'HE' has.
Gokart A123 80V
300A Kelly Controller
PM72301 motor

15S lipo
mongoose frame
mini monster controller
500W funboy
Speedict Mecury

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by Willow » May 08, 2015 9:44 pm

...thats a pretty PRO looking tape job there mate.

don't kill yourself.

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ELTEK Flatpack2 48/2000 (eaton alternative)

Post by ewinters » May 20, 2015 9:02 pm

Just found one of those for sale, incredibly cheap for 3000w power. Came to ES to check and, as always, was not disappointed. Bought it!

Image

Image

Thank you guys, especially for the connection pictures.

Edit: pictures added
Last edited by ewinters on May 21, 2015 11:07 am, edited 1 time in total.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by striker54 » May 21, 2015 1:42 am

ewinters wrote:Just found one of those for sale, incredibly cheap for 3000w power. Came to ES to check and, as always, was not disappointed. Bought it!
ImageUploadedByTapatalk1432174581.255335.jpg
ImageUploadedByTapatalk1432174588.833351.jpg
Thank you guys, especially for the connection pictures.

Edit: pictures added
Pics are not showing.

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ELTEK Flatpack2 48/2000 (eaton alternative)

Post by ewinters » May 21, 2015 11:12 am

Fixed. It seems that ES is a little less picture friendly than other forums.

Edit: will take better pictures as soon as I receive it. It cost the equivalent of 180 USD, these things are not easy to find here in Brazil.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by megacycle » May 21, 2015 9:17 pm

ewinters wrote:Just found one of those for sale, incredibly cheap for 3000w power. Came to ES to check and, as always, was not disappointed. Bought it!
Where from?
Gokart A123 80V
300A Kelly Controller
PM72301 motor

15S lipo
mongoose frame
mini monster controller
500W funboy
Speedict Mecury

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