Navitron Renewable Energy and Sustainability Forum

WIND TURBINES => Wind Turbines and associated systems => Topic started by: mickmm on September 22, 2013, 07:45:18 PM



Title: new 500 watt wind turbine fitted having problems already
Post by: mickmm on September 22, 2013, 07:45:18 PM
Hi everyone   just fitted a 500 watt  ac turbine  and a hybrid  controler     this  is a 24v a/c  one   and came from Ireland,    very good delivery   from Ebay    its a Esta breeze   type 500i
 i got it all wired up   with an isolator  and an in-line fuse   through  a 700 watt controller,    problem so far it will not go round   even in some strong winds   last week,   it just seems to want to move  from side to side  and round in a horizontal  movement   it was up at about   18 ft    at this time   on a summerhouse roof.     i have 4 pv panels  feeding a controller  and 6 deep cycle batteries   which   goes through   a 2400watt inverter   everything works great   and as the winter is on its way. i just wanted to get some help perhaps over night  with the wind turbine   to give some extra  boost to the battery bank,   i was told it does not work because of some turbulence   so i    have now decided  to move the whole turbine   and fixed it on my gable end  of my bungalow       its now at about    28ft   with no surrounding buildings   or trees   but even after having   some wind  not strong    but its there moving some trees in the distance     it still does  not seem to want to rotate      i have plumbed it up  vertical  in both ways   can someone  advise me  as to how to balance the blades???    its has 3  carbon fibre  type,   seem very thin at the end   but they are the ones supplied with it,    will it make any difference  by ballancing the blades?????
In desperation   i am considering  fitting a set of carbon fibre ones  a set of 6    which i bought  a while ago when i was going to build   my own  turbine    but decided aginst it   after seeng how cheap  the manufactured ones are      but now i feel that i may have done the wrong thing     any advice  will be appreciated     before i put the whole  set on Ebay  and stick to PV      thanks   Mickmm


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: camillitech on September 22, 2013, 08:13:57 PM
Hi Mickm,

sorry to hear your woes but when I hear things like 18' above the ground, summer house roof and gable end alarm bells start ringing. Wind turbines need good clean air to work not the gusty turbulent stuff found near houses, trees and in built up areas.

Sell the turbine, buy more PV, your turbine is exhibiting all the signs of the wrong 'location location location' http://scoraigwind.com/citywinds/index.htm much has been written on this subject by the likes of Hugh Piggott and Paul Gipe.

Cheers, Paul


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on September 22, 2013, 09:05:59 PM
Hi Mickm,
        I am very sorry to hear of your troubles,It might be because your battery bank is already full up,If your PV is feeding into the same bank then the little turbine is not going to get a look in while the sun shine bright,the controller might be set to dump(brake) at 28volts,so it will just turn slowly.
  I got a suspicion that your prop is under 1500mm in diameter and if that is the case,it will take a hurricane to shift it.I would take it down from the gable of the house as soon as possible.
     You can attach a power drill to it (be very very carefull)and check its output but check to see if its going round freely and that it has not got anything loose inside.I dont know much about these apart from seeing them flooding Fleabay,so I dont know if they are good or bad.
      Paul,s idea about flogging it and buying more PV might be the best.
                                                                                 Biff
                                                                 


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: martin on September 22, 2013, 10:55:53 PM
I'm with Paul - I read the words "on a summerhouse roof" and immediately said "that's the problem" - roofs and turbines just don't mix (turbulence!)
Here's the MD of the now rightly defunct Windsave company (purveyors of roof-mounted chocolate teapots) admitting you'd be lucky to see a tenner's worth of electricity per annum from one mounted on a roof................

http://www.youtube.com/v/WVo0WvuX7K0?version=3&amp


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: clivejo on September 23, 2013, 03:48:32 PM
Check the electrical connections.  With a dead short on the AC it will feel like the brakes are on.  Is it 3 phase?  if so disconnect the 3 wires and test i with a meter.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: todthedog on September 23, 2013, 04:25:24 PM
Sorry to be another gloom monger but I would not have a turbine on the gable.
I have a little chinese jobby at the far of the garden 50m+ from the house on a 9 m mast it still suffers from turbulence when the wind is from that direction.
I bought it for exactly the same reason as you,with perfect hindsite the money would have been better spent on more PV, but it is fun :crossed
Good luck.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: mickmm on September 23, 2013, 05:15:50 PM
Hi everyone   many thanks for all the replies   just to clarify    it is the a.c  type   with an a/c to D C  hybrid  controller    i know  its on the gable end   and its   about  3 metres   above the ridge    but it still sounds   like  its not going to be any  good   at the moment   
I will check the wiring   for a dead short  although     it was all ok when i was wiring it up on the bench   to go onto the pole    i used a plug   the type  that you connect a strimmer or mower  up    as it has 3 off set connections  and wrapped it in self amalgamated tape  before inserting it in the pole   
If i dont have any luck  with  putting a 6 blades hub  on it   then its going on Ebay  and like others say more  PV  and perhaps   enlarge my storage battery bank   
i am enjoying the challenge  in trying to  get  it working   i have had it disconnected  to see if the brake was operating but it made no difference
 a friend   of mine has one   on his  gable  with guy wires    and every time i go by  its  spinning   around  loads   he is only about  1/2 mile away and in a densely  populated area   that's why a did not have any negative thoughts about doing it,   so its onwards and upwards ,    then if all fails i will give it a miss


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: martin on September 23, 2013, 05:29:20 PM
"and every time i go by  its  spinning   around  loads " - as you'll probably find, "spinning round" is not by itself an indication that it's doing anything useful - the important thing is to have a meter on the output that you can watch and equate with the turbine's spinning - you'll find it has to be going at one helluva lick before the charging starts...........


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on September 23, 2013, 05:55:53 PM
Like Tod says,
               Its good fun but its a pity you cannot get it going.If it will not fly when you disconnect it from the batts,then there is something badly wrong.
         I once assembled a 600watt turbine of a brand that had exellent credentials.It was 24volt like yours.I stuck it up on a pole and it just diddled about in a force 6."Oh Dear" says I,,"not good".
        So I took it down and examined it,it was quite stiff to turn as well,in fact there was something badly wrong,
        The hub had slid up the shaft underneath the flange on the face of the alt,in such a way that I could not see it properly during assembly,Silly me thought that it would stop automnatically in the right spot but instead it was rubbing on the face of the alt inside the water shedding flange.I should have spun it but I never thought,I had already checked it over and found it perfect,So 6 double rounds of cooking foil later,between the hub and shaft,I sent it up and it performed perfect,
                                               Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: agrarian on September 23, 2013, 08:31:39 PM
Hello mickmm,

I'm sorry you have a tale of woe to tell, but we all have them of one sort or another, they're all right about pv getting cheaper all the time, and turbines not being very effective in town but a silent, flat, inanimate panel has non of the character of a turbine, you can't watch it turn to find the wind, or accelerate smartly up to battery voltage. Press your ear to the turbine mast and you can you can listen to it's humming heart ( and any dodgy bearings you might have ). Pv has been enjoying the summer but winter's coming and turbines remind us of their usefulness. I hope you solve your problems, you'll find relevant threads on here, good luck.

Ag


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: marshman on September 23, 2013, 08:49:22 PM
If it is not turning at all then there must be a short on at least one of the outputs - it could be the rectifier in the controller - even in turbulent air the blades should spin some of the time. Having said that I agree with all the comments on here about the location and likely lack of real useful output and as Martin said just because a turbine is spinning doesn't mean its producing anything useful. When I had my Futurenergy turbine it would spend hours whirling away but when I looked at what had been generated it was often immeasurable, only when we got winds of 20mph + did it really dig in and get going.

I agree with Agrarian about a turbine being interesting to look at - I miss mine quite badly - I often look up to where it was just to get an idea of how strong the wind is and what direction and its not there :( Feels like I've lost an old friend!

Roger


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on October 13, 2013, 05:22:37 PM
Sorry to bring up an older thread but.....

I bought one of these Ista Breeze turbines and had (have) a similar issue with it. Mines on an 8m pole fitted to the top of my narrowboat. We're in a fairly exposed position. I found that it just won't turn until the wind speed is over 20 knots. At this point is turns quite fast but produces almost no power <1amp @24v. When the wind speed rose to around 25 knots the blades stall, making a horrendous noise, turning the turbine through 180 degrees and stopping. I noted that at the point of stall the unit produced just 5 amps @ 24v.

I have had to take the unit down so as to avoid complaints from the neighbours. I've never heard a wind gen make such a racket and I've seen a few being a cruising yachtsman in my time.

I also note that there's a reviewer on Amazon who's had a very similar experience with these turbines.

I took the rectifier/controller apart the other day and noted that the circuit board is showing signs of serious overheating. This from just an hour or two of intermittent running as the damn thing just wouldn't spin in light to medium airs (<20 knots).
The hub seems free enough.
I'm now looking at fitting a 300w navitron, but before I do is there anything that I could try to save the Ista Breeze from the bin?



Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on October 13, 2013, 05:46:08 PM
Hi Sputnik,
          The outlook regarding the istabreeze is not good after what you told us.Maybe the controller is a dud.You could invest in a set of bridge rectifiers and just use another controller to divert to dump.
       But if it is making a noise like you say,its not what you want to hear.
                                               Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: martin on October 13, 2013, 06:29:24 PM
To be honest, in your situation I'd probably go for something "made for the job" - a good old-fashioned Marlec (Rutland) - they work, they're quiet, and if you do have problems the company are nice to deal with


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: camillitech on October 13, 2013, 07:12:49 PM
To be honest, in your situation I'd probably go for something "made for the job" - a good old-fashioned Marlec (Rutland) - they work, they're quiet, and if you do have problems the company are nice to deal with

I'll second that Martin, I fitted something similar to one of those Ista thingymabobs to the mad Frenchman's boat some years ago. That horrendous vibration is the stupid 'electronic brake' which basically shorts the phases and induces terrifiv vibrations throughout the boat  sh*tfan:

welcome to the forum and good luck  ;)


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on October 13, 2013, 08:08:42 PM
Hi Folks,
I have a Rutland on my yacht and it's been good for many years but the output is not high enough for liveaboard use to my mind and so I was looking for something a bit meatier.........

Cheers,

C.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: mickmm on October 23, 2013, 10:55:13 AM
Hi Folks  just an update on my original post about my ista breeze 500 watt turbine    on having   problems i decided to take it to pieces   and on doing so   what i found inside    was  a metal spring retaining Colette that should have been used to retain the slip ring that was stuck to the magnets  between the coils and the magnet     not a very good start??
then i went to detach the connections  which were spade connections from a vehicle   2 out of the three just fell off in my hand   and the slip ring should have been   glued to the body   that was loose    all in all it seemed like i had got one that was made on a Friday afternoon 
 anyway as i had not had much luck   with it turning   i decided to fit a set of  carbon fibre blades  that are the type fitted to the hornet   so i was told
 and a new  s/s hub   it all went back   and waited for some wind     eventually   the winds arrived   and it turned   quite fast   but   i seemed to be having a problem now with the hybrid  controller thats an ista breeze as well  i could only get the red  light to come on   and nothing else   it supposed to put the orange light on when it was producing power
  so now that has   gone back to   the manufacturers  for a replacement      i did notice when the turbine was really going fast  it got to the stage where it started to shake the pole.
so i have had to   stop it,    it is perhaps  out of balance  or something ???      so its coming down again ,   and  i will just have to see if the 3 blades  refitted do any better   
i did complain to the manufacturers    but did not seem to   get much help    its looking like  at the moment   the lot may go up for sale   and i will stick to solar panels   mick mm


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on October 23, 2013, 12:22:15 PM
Hi Mickmm
        A better idea would be to put it up for auction on fleabay,explain exactly why you are selling it.Explain that it is the greatest pile of shyte that you ever had the poor misfortune to lay hands on,Explain what you found inside when you opened it,Explain how helpfull Isabreeze was when you contacted them and asked for help.
    You will not get a lot of money for it but you will make a few folks smile and you never know maybe the smartalecks who sold you the pup will try and rectify the problem.If you stick to the script and tell it how it happened you will be doing everyone a favour and will keep your good feedback.
                                                                 Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on October 26, 2013, 05:21:57 PM
I've had a very similar experience to you and I'm afraid we've been had. Even if you succeed in getting the thing to spin don't expect much out of it. The max I saw was 5amps @ 24v, just before the blades stalled and the turbine furled. Nowhere near 500w.
I had thought of buying some of those blades you mentioned, and wonder if a different controller might help.
I'll be interested so see how you get on, mine is halfway to the bin as it is.........
Cheers,
C.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: stannn on October 26, 2013, 07:42:26 PM
If this is spam then please remove Martin but it's a good laugh.

http://www.youtube.com/results?search_query=altinel+enerji+ltd&oq=altinel+enerji+ltd&gs_l=youtube.3...3678.15585.0.16163.18.18.0.0.0.0.152.1969.7j11.18.0...0.0...1ac.1.11.youtube.QlF7vSlj7rk

It shows the assembly shop in Turkey where the Ista Breeze 500 is made. There's the manager who can talk the hind leg of a donkey and a lad who seems to be the sole employee, assembling turbines using dubious practices. So if your turbine is useless, these are the men who need to know. Click on the chap with a tache.
Stan


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on October 26, 2013, 08:02:58 PM
Thanks for that link Stann,
                           I pressed the translate key and was amazed to hear every word in exellent english.I was also amazed to hear the guy with the tash saying that he has just shipped 2 of his best machines to Clivejo in fermanagh in Ireland between Iceland and Kentucky.He is also claiming diplomatic imunity against any claims for bad workmanship.Would you believe it?,He also said that he sent away to China for a load of turbine spares and they sent him back a container full of the latest missiles so if you moan too much about the poor performance he can give you the rocket.
                                                                  Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: clockmanFR on October 26, 2013, 08:08:25 PM
Stan, I loved it, what fun of a snake oil salesperson.

Loved the youth trying to tap a blind hole with a 5mm or probably 4mm tap.  :hysteria :hysteria
How many do you think he broke?,  a shame that no vertical press or drill press was available.

Loved the grinder chop saw on the clean work table.  :hysteria :hysteria :hysteria 


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on October 26, 2013, 08:19:48 PM
Would be even funnier if Mickmm and me and god knows how many other people hadn't lost 300quid on the damn things.

I took a punt on mine based on the 'made in Turkey' tag. They are well known as first rate boat builders/riggers etc and this turbine is sold as a marine unit. There were no useful reviews available when I bought mine but I noticed that they were being sold by Midsummer Energy here in Cambridge, who are a well respected renewables supplier. They soon afterwards stopped selling them :-(

I wish I'd bought a Chinese one now..........


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on October 26, 2013, 08:22:56 PM
 :crossed :crossed
                  Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: camillitech on October 26, 2013, 08:48:35 PM
Would be even funnier if Mickmm and me and god knows how many other people hadn't lost 300quid on the damn things.

I took a punt on mine based on the 'made in Turkey' tag. They are well known as first rate boat builders/riggers etc and this turbine is sold as a marine unit. There were no useful reviews available when I bought mine but I noticed that they were being sold by Midsummer Energy here in Cambridge, who are a well respected renewables supplier. They soon afterwards stopped selling them :-(

I wish I'd bought a Chinese one now..........

 :hysteria  :hysteria

This is what happened to my Turkish shotgun after only 20 rounds

(http://lifeattheendoftheroad.files.wordpress.com/2011/04/240411001_thumb.jpg?w=594&h=446)

http://lifeattheendoftheroad.wordpress.com/2011/04/25/the-flat-battery-exploding-gun-and-minor-fire/

you should have bought a UK one  ;)


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: stannn on October 26, 2013, 09:10:13 PM
There's a customer here who likes to see exactly what he has bought.  wackoold

 http://www.youtube.com/watch?v=MrnV4STAQY0

http://www.youtube.com/watch?v=EDn5wK8PZbs

http://www.youtube.com/watch?v=bTg5TNY9tcs


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on October 26, 2013, 09:11:25 PM
Indeed !  :-\


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: stannn on October 26, 2013, 09:30:14 PM
.......and here is the view of another customer.  :hysteria

"First of all. If you expect to buy a kit that you just put together to generate electricity, forget it and look elsewhere. If you are looking for some parts to form the basis of a small wind turbine assembly, then this may be of interest to you.

No tracking information was provided by the seller. However, it was delivered by a carrier requiring signature and who provided tracking. Fortunately the 'you were out' card was avoided.

The packaging was not really up to the job of survivng a parcels carrier. Although parts had moved around inside, there was no significant contents damage. Just a couple of minor scuffs.

The kit was described by the seller as 'made in Europe'. The turbine head assembly is Turkish. The controller assembly German and the invertor is Chinese. Make of that what you will. The parts are available from places other than Amazon with the same seller.

The 'kit' does not contain all of the cables, connectors, etc that are required. The instructions are not particularly good. If you have reasonable electrical knowledge then you will be OK about sourcing the required parts and working out the wiring details. Expect to have to sot out cables, ferrules, crimps, etc.

You might expect the German turbine controller PCB to be the best part of the package. But this is certainly not the case. On arrival the package rattled. The PCB was loose inside the aluminium case. The cause was quickly revealed when opening the case. There is a 35amps 3phase rectifier soldered to the PCB. This has an M5 clearance hole for fixing. The manufacturer had chosen to try to self tap an M6 machine screw through the plastic, to secure the PCB assembly to the case. The assembler had given up with the screw only part way through leaving the PCB to rattle. However, the aluminium case was too thin to take the M6 countersunk screw head. This method, even if it had worked, is a poor solution. The soldered joints to the PCB being under strain when the terminal block is used. Yes there is a large unsupported terminal block on the end of the PCB. After some use I discovered that the board consumes 450mA from the battery when doing nothing. There are 3 relays permanently energised. These are not low coil power, but automotive low cost (low efficiency) types. Steps can be taken to significantly reduce the current consumption. But additional components and soldering skils are required. In round figures, as built the board will discharge an 85Ah leisure battery in a (low wind) week. This drain can easily halved by low cost component changes and additions. The general standard of construction on the PCB is poor, but it appears to work. The overall design and component choice, coupled with shoddy assembly are very reminiscent of a home build 1980s design.

The turbine head is not balanced, it is nose heavy. It is also unstable in wind, reducing efficiency. I strongly recommend extending the tail using metal sheet to improve stability and balance. The blade design, coupled with the strong permanent magnets in the alternator mean that a strong gust is needed to start rotation, but once moving, the blade maintains rotation in a moderate wind. There is some whirring and vibration carried down the shaft into the building below. As yet I have not had enough windy days to determine how this problem might be reduced. The small fins immediately behinde the hub in the seller photos give the impression of being heatsinks (cooling fins). These are in fact plastic, just for show.

The invertor sometimes reports fault when started into no load, sometimes it is OK. So far I have not made much use of it beyond running small filament and CFL lamps for test, so cannot comment further.

In conclusion. This is not a well thought out kit of parts. It is better regarded as a prototype, providing the basis for further development by a technically competent person.

I am working on the controller PCB and turbine situation. For any individuals wishing to modify their own similar kit, then I am happy to make the information freely available. For any manufacturer or retailer wanting to improve their product, all enquiries to be written on the back of 50 notes please. I have 30+ years of electronics design and would be ashamed to let something like this kit out of the door. Especially as it can be so easily made into a much better product.

This is an ongoing project and I may well add more information later.

1 month update. Despite carrying out significant power saving on the controller PCB, the unit has generated less electricity than the PCB consumes. Having had a chance to view performance in high wind, the design error on the top of mast kit jumps at you. The tail is nowhere near big enough to point the assembly reliably into wind. I should have taken a video of an adjacent wind vane with crude wind gauge to show how the turbine doesn't turn and faces the wrong way! Soon I will be taking the kit down and fitting a much larger tail fin to address this issue. I note the selling price has increased since purchase."


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on October 26, 2013, 09:40:02 PM
In a way it is not funnay at all.
                      Folks like Sputnik will have had a sickner by now but all I can say is to not give up.Perhaps a different controller might give some light relief but at the end of the day,I was  kind of put off facepalm by the way the magnets were spaced out on the rotar inside the istabreeze.A 10yr old kid could do better.This could not last,there was no way that that rotar could be possibly balanced,with such wide irregualrities in the magnet spacing.
         The whole shebang is a very poor effort.
                                                         Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: kernelpower on October 28, 2013, 11:55:07 PM
Don't give up on getting it working , I started work on my turbine again recently and its been flying the last few days , could produce more power but once I get the 1.35m Fibreglass blades I bought from China recently there should be a lot more torque.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: mickmm on October 31, 2013, 06:15:24 PM
well what have i started,it seems that i  am not the only one that has got one thats been put together on a Friday afternoon,    after complaining to istabreeze  they told me to send the controller back  to Belfast,  after waiting for just over a  week    without receiving my  replacement   i sent another email   asking why i had not had a replacement   i had a reply   which just said   in capitals    WHAT PARTS TO YOU WANT THEN  i could not believe it   another email and had to send a picture  of the controller     and  now   they have said   one is in the post   i have never known  such a terrible customer service  and i told them so
  I have just modified the pole    giving it extra strength so that it does not wobble   at the top, when going fast    i have 6 blades fitted    and during the last weekend    it was flying  with the winds  with no  way of slowing it  down without the controller connected with the brake   so i had to use a plastic  pole with a loop on the end   and strap it to the blade   and then to the post  which did the trick
so i am in limbo at the moment   and will be glad to get the new controller fitted  to see what its going to put   to my 24 v battery bank     with all the comments and reports so far i am not holdling my breath,   its been interesting reading folks,   and i will update   on the performance   when the new one is fitted and get some more winds   bye folks  mickmm


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: kernelpower on October 31, 2013, 07:46:21 PM
Yes mate you def need to stop the wobble wont do any good at all, If you have been bitten by the bug already what are you waiting for build a turbine , its a lot of fun.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on October 31, 2013, 08:27:39 PM
We're definitely not alone.........:

http://www.cruisersforum.com/forums/f14/istabreeze-500-product-experience-100219.html
http://www.cruisersforum.com/forums/f14/istabreeze-500-need-help-who-s-got-experience-100112.html

Sound familiar?

Below is a copy of an email I wrote to Istabreeze.co.uk a few months back:

Dear Ista Breeze UK,
I am writing to you regarding the 24v Ista Breeze wind gen that I purchased from you a few weeks ago. To be honest I'm very disappointed with it's performance.

I have it mounted on a 6.5m pole, on the roof of my narrow boat which is approximately 2m high; 8.5m in total. the power curve and promotional material that relates to the generator states that it it's start up speed is 3.5 ms or 6.8 knots. In fact the blades don't even begin to  turn below 15 knots, nearly twice the figures given.

The power output is also way off, The unit claims to produce 100w at 5m/s and just above 500w at 15m/s; this is nonsense. I have observed a maximum amp input into my 24v system of just 6 amps, and that at the point at which the blades stall. Even when the blades have been turning rapidly I have recorded voltages at much less than 24v, that's not going to add anything to a 24v system and only watched the volts rise to 30v, briefly, at blade stall. I connected the generator to a 12v system, temporarily, to see if I'd been sent a 12v model by mistake but still saw only 10 amps recorded at stall speed. That's just 144w, nowhere near the 500w that the generator is 'rated' at.

During some pretty strong winds here a couple of weeks ago the generator clocked up just 3.7ah into my system over the course of the night and next morning with batteries at only half charge, which is woeful.

I have had a Rutland 913 wind generator fitted to my yacht for the last 6 years and always had good results and no trouble from it. The blades fitted to your Ista Breeze unit, when stalling, make the most horrendous concussive roar, like nothing I've heard from a wind gen before, and as a cruising yachtsman I've seen many. It is so bad in fact that I've had to take the unit down for fear of upsetting my neighbors.

One of the knurled knobs on the rectifier/controller fell off the brass nut when being tightened, finger tight. I am not impressed with the build quality of that piece of equipment either.

 I have tried to contact you on the number given on the sticker that was fixed to the controller but that got me through to a wire stripper supply company. Eventually I was able to contact your company by telephone, and did so twice with the promise that someone, when available, would get back to me but this offer was not forthcoming on either occasion.

I don't believe that the product information or claims about it's performance or output are true or correct. The unit is therefore useless to me and I respectfully ask that I may return it to you for a full refund.

Please advise......


And the reply:

'Please send images of the set up.'

That's it, no 'regards', explanation, apology, nothing......



I just hope that the truth about these things is finally getting out there and people stop falling for the made-up claims etc.

However I'm not used to giving up easily............. I have noticed that the pitch on the blades seems way less than an Air-breeze turbine (of which these Ista's seem to be a copy), My dilemma now is whether to spend more money on new blades when the rotor may just be total carp too........????


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: kernelpower on October 31, 2013, 09:16:01 PM
Turbine sounds like a load of garbage.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on October 31, 2013, 09:37:36 PM
Sputnik,
       You are letting them off too easy.draft a sales listing ,such as you would put on fleabay,
    Explain in your listing that you dont expect to get a lot of money for your dud wind turbine because,,,,,,,,,
    Then go on to explain what a rotten pile of carp the whole thing is,explain  that it never worked,explain that the company refuses to respond in any way,explain that you have now discovered other people with similar model/make wind turbines which are behaving exactly the same way.
   So what you are doing is,,telling folks that buying a turbine off this company is not a good idea.
    Draft your listing details and send a copy to this company and tell them that you are forced to sell your wind turbine on fleabay and ask them do they approve of the particular explaination accompanying the listing ,,a 99 pence start and a month listing.If you do it right,they will reply.Then add their reply to the details and list it on ebay.
                You will not get much money out of it,but you will have the satisfaction of rubbing their nose in it.
                              That should make you feel a lot better.
                                                          Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: clockmanFR on October 31, 2013, 09:40:56 PM
Just had a look at this. Still on ebay at now 199.  facepalm

At 103cm diameter, at 10m/s wind, at 20% (normal) efficiency, then real output is about 98w.

At 17.5m/s (near 40mph) wind then you might get about 500w.

see...  http://www.engineeringtoolbox.com/wind-power-d_1214.html (http://www.engineeringtoolbox.com/wind-power-d_1214.html)

Love there power curve, normal Wind turbine power curves are nothing like.



Title: Re: new 500 watt wind turbine fitted having problems already
Post by: clockmanFR on October 31, 2013, 09:44:22 PM
With Biff.

I have seen a 99p posting in the eba.y Chinky Inverter section, saying "don't buy this because....."


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on October 31, 2013, 09:50:54 PM
Its even worse than the aelous 300,
                              It had a 1500mm prop but the insides again were carp.The only way to get any satisfaction out of this is to blab the whole story on a listing on fleabay.Make it as humourous as possible.Humour is the big one.Make fun of it, Redicule it.Not just for your sake but for the 100s of people who might be temped to buy this load of rubbish and then think that all wind turbines are like that.
        We want people to get good results and grow to love their turbines.
                                                                    Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: Billy on November 01, 2013, 08:21:36 AM
I say old chap -"Love my Turnip" - that's a bit strong. What have people been saying?  So we go to the cinema a couple of times a month, what's wrong with that, nothing in it you know.  ;D


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on November 01, 2013, 09:32:51 AM
But,Billy,!
        I actually do love my turbine,I look out the window and see it facing into the cruel north winds that would cut you to the bone and week after week,month after month,year after it year it performs impecabily.
   I never had a machine that could make my heart beat so fast,especially with the big oversize blades in a force 10,There is was clocking up over 3kw and me hanging on by the fingernails.Yes I love my wind turbine.
     PV is quiet and efficent,no noise,no hassle,very little excitment but if you want a taste of "Yee old wild frontier" you have to fly a wind turbine. :genuflect
                                                                  Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: clivejo on November 01, 2013, 11:07:11 AM
I would gather as much evidence and take the case to Trading Standards (http://www.tradingstandards.gov.uk/).  If they are operating in the UK and lying about the product, then you should have a very strong case.  Another would be to go to Ann Robinson on Watchdog ( https://www.bbc.co.uk/watchdog/ ), she is viscous, but its funny seeing the companies "spokes" person squirm and sweat under the pressure.    :hysteria



Title: Re: new 500 watt wind turbine fitted having problems already
Post by: Billy on November 01, 2013, 02:02:55 PM
Hey Biff,

No one comes to visit when it's windy.  They have to run the gauntlet of the "blades of death".  Even I am 'afeared' of the beast.  A mate's old Rutland, the one with the round blade root, let go the other year.  We only ever found three of the blades. 

I would describe my relationship as being a love-hate thing, exciting yes but worrying too.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: kernelpower on November 01, 2013, 04:02:18 PM
Biffs idea is a good one make sure you mention all relevant details of the type of turbine and how rubbish it is :)


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: mickmm on November 02, 2013, 05:00:46 PM
Hi  folks  just an update  from my last post    the  replacement controller  arrived today     and   thought i would get it fitted as soon as possible as the winds   were quite strong
i connected it all up    and turned on the switch to the battery bank   and all it did was click inside  like the relay operation    no lights came on as they supposed to   so i turned it off and on a couple of times but no    just the clicking     noise   i got called to the telephone  and my wife heard a bang  and you could smell the burning electrical  items,   so thats another one bites the dust ??     i have been on Ebay  to try to  get a refund  but it says i am out of time  for the money back promise  :fume   and its their fault  that all the time has been wasted   so  i so far have not had    light out of the turbine   i have it in stalled mode at the moment   and have just strengthened  the pole   i must admit it does fly round with the 6 blades instead of the 3
  It looks like i might get a separate rectification  unit   and use another type of  controller i have   that has a dump feature    on it with the correct wiring configuration
i have sent Istabreeze another email  showing my disgust at the Turkish   rubbish they are selling    the thing is i have to keep paying the return postage   and its no fault of mine
I await there reply  to see what the explanation is this time    yet another week to wait for a reply   to see what can  be done 
 What i  did ask them is   why do the insides of the unit rattle about  just like its just thrown in with  the p c b  and other components    perhaps that's the cause  of it going bang  as its a metal case   with electrical   connections inside   i have not  left any feedback as yet   so that will be interesting     although it never allows enough space to say what you want    bye   mickmm


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on November 02, 2013, 06:06:56 PM
Glad you've sent them an email.
Here's one I sent them a few days ago, needless to say I haven't had a reply:

Well M***in it looks like the word is finally getting out there, NOT to buy a useless Ista breeze wind gen.
 
I would advise you to stop selling them forthwidth.
I sent you an extensive email months ago demanding a refund, I explained the trouble I was having but you sent a terse reply. I now find that many people around the world are having the same problems as me.
 
Our problems have nothing to do with the way in which we have installed them. They are just total c**p.
 
I hope that no one else ever has the misfortune of wasting their hard earned cash on one of these damned things!
 
Disgusted,.........

My controller also burned out almost straight away. I have some new kit to try out, mainly so that I can video the results to put on my spoof ebay listing but we're moored under a damn tree at the moment and can't put the b***er up.........

Perhaps we should try to get as many people who have bought these things together and go to trading standards......
C.
 


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on November 02, 2013, 07:03:41 PM
         (two shifty looking guys hiding out in in a backstreet lockup in Ankara)
     One with his long legs hanging over the top of the desk,picking the crums out of his tash with one hand while scratching his nuts with the other is giving his assistant a terrible telling off.Threatening death by firing squad after having each limb removed with a hacksaw.
      The assistant(the expert freehand drill tech) is on his knees on the floor pleading for his life.
        "But masta,You said, they was only for lucky dip,lucky bag and lucky if ever one of them worked,You did Masta,,You did"
       "Be quiet Bin Ali,Be quiet or I will cut out your tongue.have you sent Mick back a controller,?"
        "Yes Masta,,yes,I sent him the one that came back from Sputnik,the nice shiney one with the rattle."
       "H,Mmm ,,Good boy,come here,"The Tash,s voice warms and he stretches back on the chair,pulling hard on his reef and letting go clouds of smoke.
   "I am going to promote you,I am going to make you my personal assistant,"
        Ben Ali grovels on the floor,,,"Awwww Masta,gracious Masta,You do this for me,?"
   "Yes,Out of the goodness of my heart,I will promote you to number 1.My right hand man." "Be quiet now,,have you got back any more controllers,"
    "Ahhhhhh masta,The controller which come back from England I send back to the UK and the ones from Germany to Ireland,I mix them up good so that no one get the same one twice,like you said."
      "Good man Bin Ali," " Soon we have the money to travel to UK and open resturant in Park lane" " I must think of a name,Something very english,something exciting,Something like
       "The windjammers revenge"
         "Posh and renewable"
                                 Biff
        


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: stannn on November 02, 2013, 07:19:08 PM
Effin brilliant Biff.  :hysteria
Stan


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on November 02, 2013, 07:23:59 PM
Sputnik,Mick,,
                   I mean no offence and apologise if i have hurt your feelings, but its how I imagine their operation.
    I do hope you see the funny side.
                                         Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on November 02, 2013, 07:37:19 PM
I did indeed! ;-)


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: kernelpower on November 02, 2013, 08:34:09 PM
Our business got proper stitched up by a Turkish company it was only 800 euros but we ain't the biggest company!!


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on November 12, 2013, 02:47:06 PM
Ok I know I'm floggin' a dead horse now but........

I shaved a bit off the blade stubs (? The bit that fixes to the hub) to increase the pitch and added a larger aly tail fin, so now it points and turns ok.

I suspected a while back that I'd been sent a 12v version instead of 24v. So it gets upto 12v at a modest turn but has to be screaming to get above 24.

Could I fit some sort of step-up transformer to help? I know this would more than halve the amps but any voltage below 24v isn't going to add anything to my batteries.
Or am I being a tw*t?


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: oliver90owner on November 12, 2013, 03:40:31 PM
I shaved a bit off the blade stabs

You may regret that.  Fitting wedges would have been a far better ploy.

Could I fit some sort of step-up transformer to help

The output is likely three (or 5) phase AC from the stator, but rectified to DC for battery charging.  If you could separate the phases and transform them ... but you would need to deal with all  the phases. Three lots of transformer losses and wild AC to contend with.

Is it possible to halve your battery volltage?  Otherwise you need an inverter along with more losses.

RAB


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on November 12, 2013, 03:44:29 PM
Could the step-up not be fitted after the rectifier?


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: agrarian on November 12, 2013, 04:44:10 PM
Could the step-up not be fitted after the rectifier?

Well it could, but it would need to be a dc to dc converter or an inverter, transformer and additional rectifier ........ too many losses to make it practicable.

Ag


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: mickmm on November 12, 2013, 05:33:31 PM
Hi Folks   i have just got my refund from Istabreeze  for the faulty controllers   i sent back   i have also received a new controller of a different manufacturer  for half the price the others were   i have now fitted it up   and the battery light came on   great  exhappy:   and this morning the turbine was whizzing round  but its not showing any output lights on the controller,  the charge light  is off  banghead:  so like wise  is it a 12 volt one connected to my 124 v bank   i am getting a bit fed up with the usless  Turkish rubbish ....   i am awaiting delivery  of a watt meter that goes in line with the controller output   and when fitted it will tell me what output i have if any??   if  there is nothing showing   then they will get that back as well   sh*tfan:       it should be here very soon    then it will hit the fan.    i may decide to take it further   and claim compensation   for all the messing about  taking it up and down and getting my son to give me a hand   and the return postage    whatch this space    mickmm


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on November 12, 2013, 06:09:39 PM
I think that the only thing that is 24v on these things is the sticker that says so. Sickening cos they charged me 30 quid more for a 24v one.

I've replaced the rectifier, charge controller with third party stuff and it still doesn't produce any power.

We've been had mate.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on November 12, 2013, 06:13:28 PM
Hang in there lads,
              There must be some solution,? whistle
       How about a combined,fire sale on fleasbay ,like suggest before, but the two of you giving your experiences as the reason you want to get rid of these articles.Be sure to put everything down correctly and keep all the details of transactions.
                                                     Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on November 14, 2013, 10:36:14 AM
It's blowing quite nicely here at the moment, and thanks to my work on the tail and blades the Ista is spinning well.
However I'm reading voltages 9 to 19 frequently but it's not topping 24 unless in large gusts.

I reckon it would be doing ok in a 12v system but this thing is definitely NOT 24v.

I'll post some videos on youtube later.......


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on November 14, 2013, 11:25:41 AM
Well done sputnik,
                However,, and however,This is the best wind you will ever see, ;D and if it canna deliver in this,it will never deliver.
                                                                                            biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: mickmm on November 14, 2013, 05:40:47 PM
Hi   well Sputnik  i have found the same thing as you     its been spinning that fast you could not see it  but all it did was to put a slight glimmer on the  charge led  on my other controller  so i turned off my P V   but after a couple of hours  and  not 1 decimal point   was added to my battery  digital readout   monitoring  my 24 volt bank,    so it looks like its a dead loss :fume   i have  sent another email to Istabreeze    and had a reply form   what sounded  like a Turkish name person who says  he will get back to me soon  :crossed   banghead:
I told them  i was considering claiming compensation for all the times i have had to take it up and down  for no fault of mine    i told them so far its not produced  a single watt   of power for me    and as Biff says  the winds will not get any better than this     can any one recommend another  make to replace this rubbish  at around 4/500 watts  at 24 volts


                                                            thanks  mickmm  help:


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: mickmm on November 16, 2013, 12:55:47 PM
Hi still awaiting a reply from the Turkish  person from Istabreeze  but i have also found a bit more out about the problems with the 24 volt turbine   from another agent for them
after i purchased a controller from him   i gave him some information about the problems   we are having with the 24 v version   
I have sent another email   asking  for either a genuine 24v tested  replacement or a refund    other than that i have said i will take legal advice   with my legal cover on my home insurance  that covers me for  personal grievances  etc,    and i have said i will set up a complaint with ebay,     so  its up to them whichever way they want to go ???   
Below is a copy of the reply i received from another agent also selling these on Ebay   and has thanked  me for pointing out the problems and the fact that  he was still advertising 24 v ones which he has now   altered the add to just the 12 v  version       thanks   mickmm

Dear xk8man2,

Hello xk8man2

Thank you for writing to me, I am sorry you are having problems with the istabreeze 24v, yes we have had some problems with the 24v but not all, some of the 24v turbines work well and I think its a problem at the factory labelling stators wrongly. Anyway we have dropped the 24v version until they sort them selves out.
Thanks for the head up on this as I did not realise we still had an advert for 24v version, I have now removed it.
I can not help you with your istabreeze problem but I will refund your payment for the controller if you wish to return it to me.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: biff on November 16, 2013, 01:16:32 PM
Well at least they are making some effort,
                               However,they are well aware of the problems with that 500watt wind turbine.It is not as if they did not know.I seem to remember telling one particular director that they were advertised as being made in Germany,whereas the fact was they are Turkish made with Chinese bits. He got rather stroppy and told me he had reported me to the advertising site owners.I replied that,that was an exellent idea and that I would furnish the reason to the advertising site owners as to why he should withdraw that particular model turbine, This was 3 weeks ago.Instead of trying to take my helpfull comments on board, he became very aggressive.I suppose If I had a barn full of those fantastic articles I would be hoping to get rid of a few before the sh*tfan:.
 To be fair, The chinese Yang-Shens were no hot stuff when they came out first,Not only were the blades far too big but the hubs were suspect and the controllers were made of putty.One thing they did have was exellent lump innards,The problem with them was that they overproduced lecky,not like this recent new kid on the block.They have to produce lecky and if they can only show a glimmer in a force 8,get shot of it immediatly,dont waste your time.
                                                          Biff


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: sputnik on November 19, 2013, 06:23:14 PM
Wouldn't  a voltage doubler circuit like this provide a work around?

http://en.m.wikipedia.org/wiki/Voltage_doubler

C.


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: mickmm on November 20, 2013, 03:20:48 PM
Well what a problem i have had making sense   of the way the istabreeze .co.uk works,   i have been passed from pillar  to post   with different company names    even  1 from Germany    who told me to fill in a complaints form  and send it via an attachment   i never heard  of them??  anyway  i got in touch with the original seller   and told him i was prepared to  Ebay and open a resolve  system    he has now come back and told me he is arranging a collection  possibly Friday    so i have had to get my son to give me a hand in the freezing cold wind and rain  to take it down and get it took to pieces   and boxed up   and its to go back and i will get a refund, so its a result  at last !!!  i did tell them i would not give up      so a happy ending      mickmm


Title: Re: new 500 watt wind turbine fitted having problems already
Post by: oliver90owner on November 20, 2013, 09:31:21 PM
 its to go back and i will get a refund, so its a result  at last !!! 

Don't count your chickens until you actually have the cash in your hand!  'Will' denotes the future.  Don't try holding your breath until it arrives!

Good luck.

RAB