I have found that the manufactures have failed to offer warranty and have now sent over 30 emails with pictures and still they are not helpful.
the moral of this story is don't buy Exmork wind turbines, they don't protect themselves in high winds and fail!!
|Exmork Wind Turbines||David Betts - 2010-12-02 15:56:30|
|Re: Exmork Wind Turbines||Vicky - 2010-12-03 07:54:03|
Mr D Betts is not an honest consumer. He said both two wind turbines have failed badly, but he just reports me one controller is damaged because of lightning, and one wind turbine is damaged because of short circuit. In fact, I have agreed to provide him a 2kw/48v indoor controller and a new winding with casting for free. The product is not quality problem and not under warranty, so we cant send it by DHL because of expensive freight cost, we could send it by sea. but David doesnt agree with that, and want get more.
But in fact, the product is not quality problem. The controller is damaged because of lightning .The 3-phase rectifier bridge is damaged.
Please check what Mr. D Betts has said at email:
We also have connected a solar panel which can output 20amps at 48v if turbine is at maximum capacity also could this be the problem? it is possible to see 70 amps?
Wind turbine is a special product. It is spinning in the open air. Even though a top quality wind turbine, it also may be damaged under the condition of howling wind and torrential rain, so we dont guarantee exmork wind turbine could always spinning without any problem.
2) A 5kw wind turbine was damaged in USA. After we confirmed it was under warranty, we sent a new 5kw wind turbine to compensate this client. This 5kw wind turbine is for free, and we pay the shipping cost to Detroit.
These years, we always give good warranty to honest consumer, so exmork wind turbines have good reputation.
|Re: Exmork Wind Turbines||Quentin Gargan - 2011-01-16 19:56:44|
I'm sorry, but I have also come across this brand of turbine - in a skip. Like many people who work with wind, I have bought a number of Chinese turbines to try out, and without exception, they all failed. This isn't a prejudice on my part - I work with excellent Chinese solar panels, and I'm typing this (and you're probably reading it) on a Chinese laptop.
Companies trying to develop a decent rugged wind turbine now find that to sell in the UK, they have to meet very expensive MCS testing standards. We may grumble at this, but the reason is because very low cost turbines have given so much trouble.
For example see the reports at http://www.thewindandyourwallet.com/?p=16 and elsewhere on that website.
A wind turbine is not something to trifle with. The blade tip of a turbine can be doing 7 or 8 times the wind speed, and if the controller fails, it can often do a lot more.
Hopefully you have a decent G83 inverter that can be used, and the tower can be used for another turbine with modified mountings. It isn't all a write-off, but for safety reasons, I wouldn't re-install, even if it was under warranty. Sorry.
Turbotricity 2.5kw Grid & Off-Grid Wind Turbines
|Re: Exmork Wind Turbines||David Betts - 2011-01-19 10:03:09|
Yes and thanks for the advice, i have learn t the hard way i am afraid.
Have re-wound the stators and fitted good bearings and used good quality cable and hopefully one of the two will be erect this weekend.
I don't understand them if they had sent replacements i probably would not have complained about their product so loudly, why cant companies understand that after sales service is important. If they had investigated the cause, rectified the problem in production one day they might be selling good quality products.
I have a business for 16 years now in the electronics industry winding coils and transformers so i know the industry, it is so close to being a good product.
If they had fitted better bearings with a good QA department and used quality cable instead of the s**t cable they used they could be good.
Thanks for your message.