Small wind turbine: mast question

[plasmanu]

Indeed it is not gnognotte there.
I don't want to see the mast tear the barn in half.
Or to do it 10 times.
Calculate all the risks / annoyances before it does not cost much
All the alternatives are good to take.

[plasmanu]

I spotted two pumping wind turbines this morning with lots of blades.
With folded tail which are used only on demand.
One for a construction box to fill a large pit.
The other with a private individual.
The masts are made of metal, conical with a bolted structure.
in the style of 4 scales that end in a point.
Tomorrow I will take photos.
no shrouds, it's like mini HT pylons. About 6 to 8m high.

Yesterday I released a huge bullshit:

I would make a ball joint with 4 flap hinges and a large axis: because I need something to hold the mat in a fixed position when lifting

Nay.
The ball joint is above the base to be bolted.
When you're next door it's so big that you don't have enough perspective to see all the details

I had in mind my little mat which cannot be articulated

[plasmanu]

Steel structure without shrouds for pumping wind turbine

Construction:


Particular: with carrycot and ladder on the side, very pretty

[Obamot]

Without shrouds? Oh yes, hey! Ho!

In both cases you show us hyperstatic structures! And not a mast ...

There it changes everything!

I hope you understand the difference?

http://fr.wikipedia.org/wiki/Hyperstatique

We come back to the same point, breaking strength and elastic limit of your mast?

[plasmanu]

Of course.
The photos are for the initial thread of the subject.

My mat is very different.
Except that their windward surfaces are much larger.
Generating a high thrust. All kept without shrouds.

[Obamot]

So what?

We come back to the same point, breaking strength and elastic limit of your mast?

Who sold it to you? For what purpose? Did he know what you were going to use it for?

[plasmanu]

Celon me.
No breakage problem.
But with the movable ball joint: it is only the shrouds that keep the balance.
And the second row of shrouds which prevents the phenomenon of elasticity / vibration.

[Obamot]

Bah.

Ok, we went around.

@ +++

[plasmanu]

I would post at the end of the realization.

I have a last question:
It must be a good wind turbine because BELGIAN I think.
Here the wind turbine doc:
link: pdf

Nominal voltage: 24V (three-phase wind output)

It's nominal 24v.
This means 24v maximum or voltage range starting at 24v
In order to connect my GTI mttp hybrid 10.8v -28v.

To answer your obamot questions:
-I bought the wind + mast + electronics + cables ... from a Portuguese cabinet maker who wanted to make an off-grid solution in his plot of land surrounded by trees inherited at the death of his father.
-use: connected to the network with GTI.
To couple the mast to the wind turbine it lacks a Coupling flange twice as wide as this:

That's why they never installed it. Nor even mounted the mast.

[Obamot]

Good, good. Good bein if you have the place, you mount it as you want, but more than 10m from the house.

That way, if hypothetically it were to fall, it would be on the ground.

@+