Chinese Hummer Wind Turbine Problem

[Kochkor Aytmatov]

hello my friends.i am from Kyrgyzstan ..
my company is nearly go bankrupt because of Hummer wind turbines from Anhui region. Their turbines are too bad. Their 1kw model generator always die. Last week, the blades of 3kw Hummer wind turbine is broken and felt on the ground . luckly nobody died.
all turbine fans should avoid Anhui Hummer Wind company.
my company lost as much as 50000$ . i was regret to buy Chinese Turbines. My company is a victim. Please stand away to buy Hummer Wind turbine.
sorry for lack of my English

[Rob Beckers]

Hi Kochkor,

First, welcome to Green Power Talk!
There are several threads about Chinese wind turbines, and the issues with them. Take a look in the wind section. Cor van Houtum has "tamed" a number of Hummer wind turbines, which took quite a bit of effort. He may be able to tell you more.

-RoB-

[Cor van Houtum]

My opinion,

there are some pro and contra's on the hummer system
the idee to put the generator on front of the turbine is basic not bad thinking
in this way there is a lot of flesh to mount the blades
but the weight of the generator must be added to the weight of the blades to determ what kind of bearing it will need.
The bearings should be improved
The generator is single phase this makes it a noisy machine
they should make it 3 phase ac

The electronics are bad.

we build our own electronics to manage the power and create a good dumpload
in the original electronics is no anti hysterises put on the relays
this makes the relays to burn

the system of all in one that contains the rectifier , the dump and the off-grid inverter is created to look nice.
and far over the top , with the nice digital voltage and power meters.

I would like a big bridge rectifier and realy big power relays mutch more
and forget all the commercial made meters
A separate inverter , on grid or off-grid makes the system mutch more flexible
then the controller should be user regulated on the voltage attack for the dumpload

all this is applied for the 500 watt , 1kw and 2kw turbines
let's say the tale versions

Then some other things to take in consideration
the 2kw versions will make earth faults after half a year
if you use a on grid inverter with no transformer like the power-one aurora you will get RISO errors

Can this system work ?
yes but you need to change a lot to make it better
if you have imported the complete set then throw away half of your investment

I have in stock

5x 5kw new type turbine complete auto yaw type
1x 5kw turbine tail type
5x off-grid controller /inverter 5kw
1x off-grid controller /inverter 5kw tail type turbine
5x on grid controller with dumpload 5kw
4x 2kw generator complete
2x 1kw generator complete
3x 500 w generator complete
several blades
several towers
pictures of factory visit in china

all Hummer

Get the picture ?


kind regards

Cor

[Francis Roberts]

Although so many people encountered with bad experience with Chinese wind turbines, however I am luckily enough to purchase very high quality product from a manufacturer named Shanghai GHREPOWER Green Energy Co., Ltd.

At the very beginning, I go through www.eastwindpower.com, which is a company established in US. After my talk with general manager of this company, i found out that it is the distribution company in US of Shanghai GHREPOWER Green Energy Co., Ltd. After that, I will try to talk with some distributors of this company. All of them give good comments on production, quality and service support.

[Micheal lee]

hello my friends.i am from Kyrgyzstan ..
my company is nearly go bankrupt because of Hummer wind turbines from Anhui region. Their turbines are too bad. Their 1kw model generator always die. Last week, the blades of 3kw Hummer wind turbine is broken and felt on the ground . luckly nobody died.
all turbine fans should avoid Anhui Hummer Wind company.
my company lost as much as 50000$ . i was regret to buy Chinese Turbines. My company is a victim. Please stand away to buy Hummer Wind turbine.
sorry for lack of my English

1) Hummer 1kw wind turbines price is 1600$, 3kw is about 5400$ off-grid, Then the total lost is less than 8000$, how could you lost 50,000$?
2) Why don't you call the sales center for after service? The Tel: 86-551-5314300,18855170526 Fax: 86-551-3442991 Email: chinahummer627@yahoo.com
WebSite: http://www.allwindturbine.com/ www.hummerwindgenerator.cn http://chinahummer.en.alibaba.com
they will serve you sincerely
3)My name is Micheal lee,Hummer distributor in the Canada. At present, many our customers think it's a good wind generator brand, because it's good at generating.

[Micheal lee]

I don't think you can get so much lost for Hummer wind generator, 1kw Hummer wind generator is about 1600$, 3kw wind generator is about 5400$, so the totally lost will less than 8000$, how could you loss 50000$.
Any quality questions, please contact Hummer sales department. Their have after service in series. The website is http://www.allwindturbine.com/ www.hummerwindgenerator.cn (www.hummerwindgenerator.cn)
there you can get more contact information.

I don't know whether you have bought a replica, but the Hummer wind generator is a good one. It's very good at generating. In Canada, my customers have a high appreciate in this brand.

[Cor van Houtum]

it is possible to loose a lot of money
look at

these pictures

[Cor van Houtum]

more pictures

[Cor van Houtum]

how to loose money

[Marek Klon]

I am thinking of buying 2 KW Hummer Wind Turbine and using it with Aurora 3.6 kW inverter where I am planning to program 16 point power curve. Location - Ireland so very windy from time to time :)

Why you saying that 1phase turbine is more noisy than 3 phase ?
Can anyone post a picture of naked generator ?

I was just about to buy when I have seen this tread

Marek

[Rob Beckers]

Hi Marek,

I'll let Cor comment regarding Hummer, since he has worked with lots of Hummer turbines in person.

Very much in general: Single-phase machines are generally more noisy than three-phase machines because for the latter the mechanical load of the alternator on the blades is virtually constant as the blades move around for a three-phase machine. With a single-phase machine the the load on the blades varies very rapidly, as the blades turn. How much this translates to additional noise varies. For many wind turbines the bulk of the noise is due to the blade tips moving rapidly through the air, and not so much the alternator-induced noise.

-RoB-

[Cor van Houtum]

Hello Marek,

I have installed several 2kw Hummer turbines together with the Aurora 3,6
After a while these turbines give earth failures.
The Aurora is without transformer and does not accept any lead to ground.
We have even try to isolate the generator from the pole.
on the end I have given up , and replaced all of these units .

The second thing is NOISE.
Rob is right when he say's that the blades are often the source of noise,
but with the hummer it is not important how much noise the blades make.
You cannot hear the blades because of the terrible noise the generator makes.
It is howling like a wolf.

Third to consider,
You say you have much wind.
The Hummer is a low wind turbine with very long blades.
In high winds you will not be able to stop the turbine.
The power on the wings is bigger then the electrical power from the generator.
In high winds you cannot stop the turbine , even short circuit will not help.

In your Country I would not use this kind of turbine.
I would use a variable pitch machine like the WINDSPOT

Home Wind Turbine Windspot development and innovation - YouTube


Kind regards Cor