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Author Topic: Bulgarian wind turbines?  (Read 1052 times)

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makenzie71

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Bulgarian wind turbines?
« on: December 30, 2019, 06:05:21 PM »
Anyone dealt with "ista breeze" turbines?  Looking for the next one to tinker with and these keep coming to the front on eBay.

https://www.ebay.com/itm/i-1500W-24V-48V-Windgenerator-iSTA-BREEZE/153174401757?_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D2%26asc%3D20160908110712%26meid%3D9ca5a40d885a4c998d1b84d6459673f3%26pid%3D100677%26rk%3D1%26rkt%3D30%26mehot%3Dpp%26sd%3D163249549635%26itm%3D153174401757%26pmt%3D1%26noa%3D0%26pg%3D2386202&_trksid=p2386202.c100677.m4598

1500w for under $400 shipped to the states seems like crazy good numbers...but I'm assuming Bulgarian watts are a lot like Chinese watts.  Just looking for some feedback from anyone who's played with one.
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Mary B

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Re: Bulgarian wind turbines?
« Reply #1 on: December 31, 2019, 05:27:50 PM »
No power curve given, looks like an AIR X clone... or a Chinese piece of garbage... run away fast...
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makenzie71

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Re: Bulgarian wind turbines?
« Reply #2 on: December 31, 2019, 05:53:48 PM »
I don't think it's Chinese...I haven't seen any Chinese models that look quite like that.  The people who having reviews of them simply say they're awful without giving any details about how they're set up.  If I can't find anyone who's actually tested one out I'll buy one for the funs :D.
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margusten

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Re: Bulgarian wind turbines?
« Reply #3 on: January 07, 2020, 04:24:50 AM »
I have 2 of these IstaBreeze wind turbines.
Yes they work, but not as well as home made ones with wooden blades.
They have plastic - fibre blades but in high wind they are bending and hitting tower mast.
Once they cut such a way about 15sm from edges and still working.
I ordered new blades and put this thing working without tale. Working too but not with small wind. At least they can not hit tower mast any more.
I found also Y shape metal where blades connected, also bended. Probably made from chinese steel - metal also.
After 3 years slip ring failed, ordered new one from ebay and working again.
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makenzie71

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Re: Bulgarian wind turbines?
« Reply #4 on: January 07, 2020, 07:44:23 AM »
Thanks margusten.  I'm still on the fence about trying one...I don't expect them to be great but if they bring their prices back down to $350ish USD delivered it still might be worth playing with.

What kind of outputs are you seeing from them?
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margusten

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Re: Bulgarian wind turbines?
« Reply #5 on: January 08, 2020, 02:44:33 AM »
I have 24V IstaBreeze connected to 12V battery, therefore I see 100W average output from 1500W windgen but this is enough for some led lights and router.
https://thingspeak.com/channels/220841
It is live output from this windgen.
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makenzie71

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Re: Bulgarian wind turbines?
« Reply #6 on: January 08, 2020, 08:30:34 AM »
Why not run it to 24v?  If your setup has you stuck with 12v, I have been informed recently that installing a resistor (or possibly a bank of resistors for a 1500w turbine) would help build up more amperage.  A 24/48v turbine on a 12v battery is probably barely spinning.
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margusten

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Re: Bulgarian wind turbines?
« Reply #7 on: January 09, 2020, 06:31:28 AM »
Yes I should go to 24V. But stuck on 12V for more than 10 years now.
There is all 12V stuff like 4G router and all led lights.
I should use downconverters 24V - 12V.
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makenzie71

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Re: Bulgarian wind turbines?
« Reply #8 on: January 09, 2020, 06:49:45 AM »
The guys here have told me that adding a large resistor on the output leg of the rectifier would help spool the turbine up...basically mimicking having an additional battery.  I'm actually using a dump load resistor in that fashion on my little 500w turbine and I am seeing higher RPM and more output.  It might be worth checking out.

https://www.fieldlines.com/index.php/topic,150024.0.html
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makenzie71

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Re: Bulgarian wind turbines?
« Reply #9 on: January 19, 2020, 11:21:17 AM »
Okay so I just bought what I think is going to be my expense cap with doing these:  An "iSTA-BREEZE I-1500".

https://www.ebay.com/itm/i-1500W-24V-48V-Windgenerator-iSTA-BREEZE/153174401757?ssPageName=STRK%3AMEBIDX%3AIT&var=453485864729&_trksid=p2057872.m2749.l2649

My wife's going to flip her lid when it shows up...it was easier when I was just buying guns because she doesn't really know what's all in the safe but she can count turbines that keep popping up at the shop :D

Anyway...I got the 3-blade "black" version in 24 volts.  Going to see what it's made of.   There's one video on youtube of someone popping the covers off where you can see the stator and it does look like there's plenty of copper in there, but I want to put mic's on it all and see exactly how much.  Really the biggest thing I'm concerned about up front is that it's claiming a 1500 watt rating with 107cm blades...can't find a total rotor diameter anywhere but the hub does flair out a bit.  Assuming there's a 9" spread at the hub it's less than 8ft in diameter...seems like a tall order, but not impossible.

And they are definitely Chinese made.
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