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Wind Turbine and Solar Questions

3K views 20 replies 6 participants last post by  xabiaxica 
#1 ·
My 2 wind turbines I have discovered have no braking system. Does anyone know how I can make a brake for them?
 
#3 ·
Both.

My turbines are recommended only to work upto certain wind speeds, but I can find no mention on the bumpf that there is a braking system. Actually the destructions (instructions) are directly translated from Chinese so they don't tell me much full stop. However, if there is no brake I was wondering if there is some way of fitting something that would act as one, either to disconect it from the batteries and then lock it off so it doesnt turn. And / or lock it before it starts turning if we have strong winds forecast.

Hope that all makes sense.
 
#4 ·
As an engineer I can only say that you need serious help if you cannot manually lock them out when conditions dictate.
The only "simple" solution I can think of for you to perhaps implement is to mount them on a 90 degree wind vane type mounting whereby the wind vane 'sail' would dominate and turn the turbines sideways to the wind when it exceeded a certain velocity.
 
#6 ·
At the moment they are still in the crates that they arrived in, I will have a look at them or try and find some info regards a website with regards the specs etc and let you know soon as.

I am a complete clot when it comes to anything like this, on the internet the turbines sounded the dogs doo dahs but now they have arrived and I have read through the bumpf I am beginning to think I am truly up the creek without a paddle. Unfortunately, the company who makes them hasnt answered my emails and the guy who sold them to me has gone out of business so I do hope you guys can give me some advice.
 
#10 ·
I have 2, one is a 1kw the other is a 2kw. They were built by the Shanghai People Enterprise Group Wind Power Co. They bear the mark SRM Series. The instruction manual says its speed regulation method is by YAW. (whatever that is). In the destructions it keeps on saying in the event of high winds operation should be stopped. But neglects to say how. I can see no mention of where a brake might be or how it is operated if there is one.
 
G
#11 ·
Hiya.

I´ve installed similar doofers on boats in the UK. According to the website/info on the product, it uses the furl method of controlling rotor velocity.

When wind speed reaches its critical point (nominal is 9m/s (20 MPH) acccording to their blurb, but doesn´t state the critical, but would guess it´s around 40-50MPH), the rotor rotates around the furling hinge or pin, either vertically or horizontally. As the wind speed slows, the turbine rotor turns back into the wind.

From what I can understand, the YAW and FURL methods are the same. Furl comes from Sailing and Yaw from Flying.

More info on YAW Yaw drive - Wikipedia, the free encyclopedia


Hope this helps!
 
#12 ·
So does this mean I don't need a brake?

We do get some pretty terrrific winds up here, I did mention this to the guy who sold them to me and specifically asked if they had a braking system and he led me to believe they did, however, one would think it would say so in the destructions.

Or am I being a woman and expecting too much.
 
G
#13 ·
From what I´ve seen of the product and spec, it does have a brake- a Furling/Yaw type. Without physically looking at it though, I wouldn´t be 100%. It would be a chocolate fireguard if it didn´t have one, mind.

Re the destructions, does it mention the YAW or FURL blurb anywhere? If all else fails, take a pikkie of the exploded diagram - the one that lists/names all the components - and post it to flickr or twitpics and I´ll have a deek.

I think you´re taking the right approach in being cautious, as they´re not cheap and can end up saving a chunk of cash, over time, if deployed correctly.
 
#15 ·
Oh boy

I just have visions of Windy Miller caught on the sails of his windmill going round & round & round & round & round & round & round & round & round & round & round

:rofl::rofl:

:laser: :peep:



sorry...:eek:
 
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