That is the big question of course. I doubt that Navitron, or this other outfit over here, is prefacing their marketing attempts with Caveat Emptor. :-) ...
20336
Bruce Gavin
kd1mw
Dec 1, 2006 2:55 pm
Greetings to you all. Let me crawl out of my cave for a while and spout off about lightning and wind towers. I have experience with numerous small grid...
20337
chuck oth
electro52000
Dec 1, 2006 2:57 pm
Lightning. Yes, a very unpredictable item ! But,,,in the Canadian Electrical Code there are guide lines for tower grounding. Many sites on the internet...
20338
rcam001
Dec 1, 2006 2:57 pm
My understanding is that for comparison (effeciency) purposes, Horizontal Axis Turbines are measured by the sweep (or area) that the blades cover....Is this...
20339
slpy55956
Dec 1, 2006 2:59 pm
I've posted my Jacobs on Ebay. http://cgi.ebay.com/Jacobs-Wind-Generator-Turbine-Rohn-Tower-NO- ...
20340
seshukanuri@...
seshukanuri
Dec 1, 2006 3:01 pm
Claus, Just to clarify something here, I have not seen any Indian turbines in this class that are sold in USA. Sulzon (Indian) models are much larger capacity...
20341
LeeWilliam
comeonwilliam@...
Dec 1, 2006 3:09 pm
Yes,Chinese goods is cheap,and always copy the others. William Lee Ningbo Ketian Magnet CO.,LTD NO.1 Chengxi West Road,Cicheng, Ningbo China Zip Code:315034 ...
20342
stephen mc laughlin
smaxll
Dec 1, 2006 8:14 pm
Hi Mandarin I think!! ;D Wish I was as smart as you well sure I'll give it a go, not easy trying to gain an education thanks Stephen ... ...
20343
med Barnell
waray002
Dec 1, 2006 8:15 pm
Caution: Not all machines that come from China are certifiable to be from China. Meaning, some equipments made by known brands from China are lumped with...
20344
AEIMail
aeimail@...
Dec 1, 2006 8:18 pm
Use the entire plan form, or maximum face to the wind, to calculate the surface area of the rotor , so for your straight blade VAWT it is 16 sq ft. it is...
20345
dougselsam
Dec 1, 2006 8:19 pm
Hi Nando Well shorting out your generator is normally how electromagnetic braking is accomplished - the fastest way to shut down your turbine as far as I know....
20346
dougselsam
Dec 1, 2006 8:19 pm
"William" Do you make or supply blades? If you can copy those, I am always on the lookout for cheap blades. Our turbines use conventional blades so we are...
20347
Donald Plisco
donaldplisco
Dec 1, 2006 8:20 pm
Bruce, I'm glad for the heads up on the lightning. I was about to install a weather station/anemometer sending unit about 8 feet below my wind gen. I probably...
20348
Windmission
cis1943
Dec 1, 2006 8:21 pm
A couple of months ago this lists presented a couple of messages on an Indian manufacturerdoing pretty much copying of small scale US turbines, where are they...
20349
solarone@...
matthewtrtt
Dec 1, 2006 8:21 pm
Not so smart, just old! :-) I'm sure you'll have more fun learning about your wind system than you would going back to university, and it's so much cheaper! ...
20350
solarone@...
matthewtrtt
Dec 1, 2006 8:25 pm
That would be a bit under 0.7 meters I believe. I had a big "discussion" with PacWind about this just yesterday. They think I just don't understand why their...
20351
Doug Selsam
dougselsam
Dec 4, 2006 3:14 pm
Hi Matt you know i was only having a little fun with nando, since he enjoys that SMA is aware of our product, says they think they can sell a few for us right...
20352
LeeWilliam
comeonwilliam@...
Dec 4, 2006 3:15 pm
We make Neo magnets used in Generator,we always do some exprements according to customers' requirements when we making magnets,anybody who knows about the PCT...
20353
Nando
nando37@...
Dec 4, 2006 3:16 pm
Don: I do not remember, if I sure, but in the past, I think I described a T filter to protect the equipment from lightning, which is quite effective. The T...
20354
Hugh
scoraigwind
Dec 4, 2006 3:17 pm
... Rob The convention is the measure swept area as the area presented to the wind. The fact that the blades go around through the wake again is not...
20355
solarone@...
matthewtrtt
Dec 4, 2006 3:18 pm
Doug, Not speaking for SMA here, but I seriously doubt that they would be too thrilled about any non-SMA devices being put inside their listed enclosure. I bet...
20356
Nando
nando37@...
Dec 4, 2006 3:18 pm
Matt May be a 1 KWH/day with 24 hours peak wind ?> Nando ... From: solarone@... To: rcam001 ; awea-wind-home@yahoogroups.com Sent: Friday, December 01,...
20357
LeeWilliam
comeonwilliam@...
Dec 4, 2006 3:20 pm
Doug,we don't make blade used in wind turbine,we just make Neo magnets for wind turbine generators.Do you produce generator? Have a nice day! Yours Sincerely ...
20358
Paul Gipe
pgipe2000
Dec 4, 2006 3:21 pm
I've posted several reviews of new books on both large and small wind turbines at the links below. * ...
20359
Michael Klemen
wind4energy
Dec 4, 2006 3:22 pm
Donald, I hope you have considered galvanic action and the possible corrosion problem you'll have with the copper on steel. I can't remember which one will...
20360
solarone@...
matthewtrtt
Dec 4, 2006 3:23 pm
We're actually talking about the effective area of a Savonius, not the total face area. Only 1/2 the frontal area is able to contribute to energy production at...
20361
Nando
nando37@...
Dec 4, 2006 3:24 pm
Gentlemen: Nickel Iron batteries = NIFe= Ferronickel batteries. I would like to know what NiFe battery sources are available ( who make them) and their cost...
20362
Geoff Thomas
windlad2003
Dec 4, 2006 3:26 pm
Norbury...
20363
Michael Klemen
wind4energy
Dec 4, 2006 3:30 pm
Doug, The sad fact is that shorting the generator is indeed how electromagnetic braking happens. It may be the fastest way to shut down a turbine that's...
20364
Paul Gipe
pgipe2000
Dec 4, 2006 7:30 pm
Matt, Ken is right--of course he's my source when I want to know something about small wind. It's total frontal area, not 1/2 as you suggest. That's why drag ...
