iSta Breeze Heli 4.0 "On Grid" Open (unloaded) Voltage Test

[@margusten1]

If there is power outage on the grid, solar contoller just disconnects solar panels (wind generator). You shoud have some breaks for that case. Or turbine speeds up to high speeds.

[@ToysforWatts]

Yes there will be a passive brake to control the turbine during an outage.

[@randylenart9674]

Is it up yet 😊

[@command7772]

On Ista-Breeze website they say On-Grid version makes Voltage 0-1000VDC!

[@ToysforWatts]

I'd believe the on grid versions certainly could get that high if unregulated and stuck in high wind, they will definitely have to have high voltage controllers capable of shutting them down in the event of an overspeed situation.

[@seferkoklu5945]

@@ToysforWatts t seems that it can go up to 300-400v very easily. But is there a charge controller that can reduce this amount of volts to 48v? So, is high volts desirable even at medium-high wind speeds?

[@Deiphobuzz]

Did you find the sunny boys that can be reprogrammed to windyboys?

[@ToysforWatts]

I'm not sure...SMA has been completely unwilling to talk to me about the matter. I have actually found a 5kw Windy Boy in Australia, I plan to spend a little time next week trying to see how hard it would be to get it shipped to me in the US...but, honestly, part of this project is specifically to find a way to make the turbine work with inverters that are currently readily available.

[@ryansmith-xo4by]

I'm interested to see how you get on with this turbine. I see ista breaze do 2.0 on grid as well. Do you think the open circuit voltage will be the same or similar to the 4.0? I am looking for a small turbine to use with a Sunsynk/Deye inverter, which needs a dc voltage range of 150v to 350v. There is little information on ista breaze website about the working voltage.

[@command7772]

I am a little confused about the Istabreeze wind turbines when using them in windy and gusty areas. Which has better design and survivability, the 2000W WindSafe or 2.0 Heli? For me this counts more than generated output power!

[@ToysforWatts]

The Heli 2.0 is in all ways a superior machine to the i2000, assuming you also upgrade to the wood and glass blades. That said, getting the Heli 2.0 with the wood and glass blades is considerably more expensive than the i2000. It will do almost twice the production in the same wind as the i2000, too. I have had them both running in 50~70 mile per hour wind without any apparent trouble so knowing which would will handle high wind better...I'm not sure. I can say that everything about the Heli 2.0 is better made, and you pay for something that's better made.

[@command7772]

Thanks for the reply and good advice! I didn’t know it was possible to get wood and glass plades, thought they were all FRP. Are these W&G 3-blades or 5-blades and do they come from IstaBreeze in Turkey?

[@RemFireball]

Are the 48V versions wound differently or do they just include a charge controller that outputs 48v ??? Ista defo needs to up the information to help people sort a system and ultimately buy their turbines. Presumably wound different as they spec very heavy guage cables for longer generator controller distances

[@jstaffordii]

It should work. My Sunny Boy 7.7 pulls my 584 potential VOC solar strings down to 360-440 V when MPPT. What does ISta say the max VOC is on the turbine? They should have some sort of output graph available.

[@ToysforWatts]

they do have graphs, but they're pretty rudimentary.

[@agnisedzins3823]

Hello, I have bought Heli 4.0 ongrid and Dey 12k inverter. In inverter is + and -, two cabels to connect the turbine. From turbine coming out 3 cabel, but I need just 2(+,-).😢 In Your video you have connected something between turbine and meter and you are getting pulus and minus. I am not an electricer. Can you tell me please what is that?

[@ToysforWatts]

You use a bridge rectifier to convert the turbine's three phase AC current to the inverter's DC current.

[@agnisedzins3823]

Thank you. I will try to find it. When I get everything done I will write you how it works

[@flyingtools]

Hi! I’m willing to try this or the heli 2,0 together with my 400v battery (370-440 volt) but I’m afraid that it needs a lot of wind to overcome that voltage and just free wheeling mostly of the time, or what do you think? It’s a little harder to find voltage boosters in that voltage range.😅 For example in my location a 48v wind turbine had worked best with a 36v battery from what I seen from my previous installation. Tanks a lot for your interesting videos ☺️🇸🇪

[@davidpotter9462]

Hey, my pregnant 🐈 cat jumped up on the alligator clips connections from the watts meter to the battery bank, so it quit working. What kind do you have? I have to get one.

[@ToysforWatts]

These are the watt meters I use. www.ebay.com/itm/122029089742

[@silverleapers]

It seems many of us want the details on your on-grid sunny boy solar controller conversion/Frankenstein-ing. If like suggested in the comments by margusten1 the controller shuts off the power input from the solar in the event of a power outage, then what? Full brake in a storm of wind (I smell magic smoke, again)? Dumpload(s) via PID ? You have us all reaching for popcorn at this stage...😄

[@ToysforWatts]

I'm going to have to use a dump load as a brake in the event of a power outage...it's still a process trying to find out exactly how I'm going to do it, though. The high voltage is going to make it a bit trickier than usual and I'm probably going to have to design a device from scratch to work with what I'm doing. I'll be posting updates as I get there, I expect this project to stretch out over the next two or three months.

[@johnbeattie9561]

The start up voltage sure is high on that Sunny Boy. With luck the inverter will have a fast connection. Maybe John Stafford (below) can let you know how fast his 7.7 inverter connects when it hits voltage. I've just thought with my Growatt inverter which is connected to a hydro when I first turn it on it take 30-60 sec to connect but it then takes around 60-90 sec to build up the power. the hydro at first is spinning real fast but as the inverter builds power it slows the PMA till it finds it's level. with the wind being unstable this may add to your problems. As I said the Growatt has a startup of 80vdc so if the sunny boy doesn't work out you may can find a inverter with a lower startup and a quicker responding time.

[@ToysforWatts]

I am concerned about how long it'll take for the sunny boy to grab the turbine, I'm going to have to have a brake in place to help control the turbine during a power outage or strong wind, I'm hoping it's going to be adequate to keep the turbine from overspeeding before the inverter can grab it.

[@jstaffordii]

The 7.7 has 3 onboard mppts but unsure of the grab voltage because sun slowly rises in the mornings but it will output as low as 100 watts so grab must be at a low voltage

[@seferkoklu5945]

please open inside generator and show us winding schema diagram.

[@randylenart9674]

Getting high dollar now with the sunny boy inverter thats what I have for my 5kw wind generator

[@PP.EKOTECH]

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