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Old 22-04-2021, 16:47   #31
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Re: Air X silent Wind Generator

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Iíve got a set of the blue Spreco blades along with a new hub and nosecone on my quite old air breeze.
Very much quieter than the old blades.
Iíve had a few positive comments about the lack of noise.
I put them on three seasons ago.
The blade tips show a few marks. I suspect these are from the support pole when a 80+ mph microburst came through.

I was having some noise and low output this past season. I just replaced the bearings, electronics, and housing.
The bearings were definitely past due and causing some rumbling. The electronics had issues for sure.
The housing needed a repaint and the yaw bearing was corroded in place. Removing it was not easy. A machine shop could have done it but I replaced the housing instead.
I would not have done all that if I was not happy with the unit.
I do have a shutdown switch that I sometimes use at night.
Maybe I'm reading this wrong, but it sounds like you have replaced ALL the parts of the unit... is that right?

Jim
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Old 22-04-2021, 18:51   #32
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Re: Air X silent Wind Generator

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Maybe I'm reading this wrong, but it sounds like you have replaced ALL the parts of the unit... is that right?



Jim

Close call. Good question.

First of all look up ďship of Theseus ď. . Iím not quite there. Although Slocumís Spray may have been.

And no not quite everything. The yaw shaft, slip rings, mounting, and associated wires are original. As are the rotor, shaft, and static windings. And one of the circlips.

This was the death of a thousand cuts over a few years.

I know the PO did work on the unit as well. But not bad, I think itís over twenty years old now.

But the a overall cost for a fully rebuilt unit was still a lot less than new. And I now know the generator well.

Had I known three years ago that I would be in for all this I probably would have followed the same path. I enjoy the rebuilding.
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Old 23-04-2021, 04:04   #33
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Re: Air X silent Wind Generator

To defelsent (#27),
From what i have learnt from Marlec who make the truly excellent (a v quiet) Rutland 1200 you may get corrosion of the front bearing if you close down yr unit by tying it down. The spinning of the blades and the protective cone reduce any risk of corrosion of the front bearing, even in SHUT-DOWN mode when it is only spinning slowly. So i conclude it is a mistake to tie the blades. Either let it run slowly in shut-down mode or take the blades off and put weather (and wind-proof) cover over the body.
The front cone on the Rutland is sufficiently wide to restrict entry of water onto the front bearing but i do not know about SilentWind nor Airbreeze.
My Rutland 1200 has been a great success, v quiet (i have to look up to see if it is running because i cannot hear it) and absolutely no need to shut it down overnight which defeats one of the advantages of a windgen.
Andrew
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Old 23-04-2021, 04:57   #34
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Re: Air X silent Wind Generator

Thanks for that. The front bearings were okay, the yaw bearing was a mess. I always use the shutdown switch, and do not tie the blades. The generator is halfway up my mizzen so is a mild nuisance to get to .
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Old 10-11-2021, 21:08   #35
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Re: Air X silent Wind Generator

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I'll be happy to report when I can but don't hold your breath. The electrical system (among other things) is in pieces at the moment. At least all of the dismantling and removal is complete; next cleaning and painting, then assembling a lot of new components and wiring.

Greg
Hi Greg.

Have you had a chance to test out your system? I'd love to hear a report.

I was going to buy a Marine Kinetix unit, but I don't like their choice of voltages for Lithium. The Air units, and the D400 units have adjustable voltage regulators, so I can set them to whatever voltage makes me happy.

So... I'm still shopping.

Cheers.
Paul.
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Old 10-11-2021, 21:49   #36
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Re: Air X silent Wind Generator

Sorry - not yet. It is moving up on a very long list. While the blades are the newest the generator is a very early model Air Marine (1995) which may or may not relate to the much newer models. I am confident that the blades will be much quieter than the old blades, and they are certainly more robust. My early Air did not have a great regulator in it so the recommendation was to use an external regulator, which I did. I think modern Air units are better regulated so that is not something I can help you with.

Greg
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Old 10-11-2021, 21:54   #37
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Re: Air X silent Wind Generator

Thanks for that Greg.

It would still be interesting to know how those blades work on an older turbine. If they're quiet on an older unit, they'll be very quiet on a newer one.

Good luck whittling down the list. I have that same problem.

Cheers.
Paul.
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