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Author Topic: Proven for sale  (Read 364 times)
ecogeorge
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« on: June 07, 2018, 10:02:30 PM »

Mods please remove if inappropriate .
No connection or knowledge of seller.
https://www.ebay.co.uk/itm/Proven-WT2500-2-5kW-Wind-Turbine-Proven-TM650-6-5m-Mast-ECM250-Controller/323289691809?hash=item4b459136a1:g:9GMAAOSwUmtbFv0X
rgds George.
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mr_magicfingers
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« Reply #1 on: June 09, 2018, 02:09:09 PM »

That looks like a dreadful install, the turbine is down amongst the trees and the panels are heavily shaded. I wonder if it's just been left for years and everything grown up around it but, given the size of the trees, I doubt it.
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Solar PV: 6kw (24 x REC 250w), Sunny Boy 3600TL-21, roof facing 178 at 40 slope.
300l Thermal Store, 2 x 3kw immersions via Immersun + Dunsley Yorkshire WBS
Woodwarm Double sided 6kw WBS
7 acres of old woodland I'm slowly bringing back into order.
Scruff
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« Reply #2 on: June 09, 2018, 09:12:45 PM »

Yurp.
Seller credibility took a dive in my esteem when I saw the RE siting.

The turnip is probably tippy top. I doubt it saw much action and they're the dogs danglies.
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offthegridandy
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« Reply #3 on: June 10, 2018, 08:24:18 PM »

Paul reckons this is a really old unit and doesn't look to have done much work.   With the tower I'd go no more than 600 but it's no good to me as it's only 48V.

Dreadful looking install of both PV and the WT.
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8 KVA Lister TS2 Startamatic Genny
24 Volt 1000amp battery bank
Outback VFX3024
4.6 Kw PV array permanently ground mounted
Outback Flexmax 80
2 X Flexmax 30 PV CC
0.75 Kw wind turbine H Piggot design 2.4 Mtr Dia
12 Mtr lattice Tower.
u/floor heating from oil boiler cross linked to 12 Kw WBS
Scruff
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« Reply #4 on: June 10, 2018, 10:23:21 PM »

Only 48V?  stir

3 phase 2:1 transformer Andy, upstream of the rectifier.

I must stop buying broken stuff on Ebay....I think I've just about broken even... Roll Eyes
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offthegridandy
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« Reply #5 on: June 11, 2018, 09:34:55 AM »

Hi Scruff.  I plan on "grid tieing " my next WT as I've got all the control gear inverter etc all boxed up ready to go.

Andy
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8 KVA Lister TS2 Startamatic Genny
24 Volt 1000amp battery bank
Outback VFX3024
4.6 Kw PV array permanently ground mounted
Outback Flexmax 80
2 X Flexmax 30 PV CC
0.75 Kw wind turbine H Piggot design 2.4 Mtr Dia
12 Mtr lattice Tower.
u/floor heating from oil boiler cross linked to 12 Kw WBS
Scruff
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« Reply #6 on: June 11, 2018, 11:56:05 AM »

Hi Andy,

In that case you need 3 identical 1kVA 48V inverter transformers or a three phase 1:5 traffo.

Why grid tied? Cable costs? It's just another conversion loss.

Battery turnip: Wild AC -> 3 Phase Rectifier -> Charge Diversion -> Battery Inverter on demand. ~75% efficient
Grid Tied turnip: Wild AC -> 3 Phase Rectifier -> Grid Tied Inverter -> Battery Charger / Running Load -> Battery Inverter on demand. ~80%(direct) 50% (stored) efficient.
« Last Edit: June 11, 2018, 02:33:11 PM by Scruff » Logged
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