Because the AC voltage and current reverse 50 or 60 times per second arcs tend to go out easier than with DC where the current is continuous. When a switch...
Hello I'am new in this group but trying to get some info on making blade for wind power and what type of gen or alt. to put on it. All I'am trying to do is...
Dear Group fellows. I received this e-mail from Mr Syed and I want to share this topic with you. Looking forward for a positive reply. Best regards, Bilal Rauf...
BILAL RAUF KHAN
mian@...
Apr 2, 2003 5:50 pm
10274
Dear Friends, Can you advise me what type of car alternators shall I use for producing 1,000 watt power? Rgds, Maidar...
I wish to thank you for your quick response to my email. I look forward to a valuable learning process and hope to be able to contribute to the group as well. ...
brookstmb@...
Apr 3, 2003 2:10 pm
10276
any 100 amp or better truck alternator, but these are not designed to be powered by wind. I use them on small vegetable oil powered diesel engines. ...
It sounds like dirty energy will get more incentives than renewable energy. Not that the old almost expired almost two cents a kwh tax credit raised wind to a...
Hello all. I have 6 Induction Generators to find a home for. They are new, on skids and approximately 10 yrs. old, but never used. There are 4 each 208vac and...
Normally I lurk, but I saw this and thought of you people on the list. I'd like to point out I'm nothing to do with this company, I just saw the article in a...
Alex Dalton
Alex.Dalton@...
Apr 4, 2003 11:00 am
10280
Alex, There's also a German instrument seen on some wind masts that doesn't use any moving parts. Ads for this device can be found in German and some English...
How does a hot wire anemometer function under real world conditions, the ones I am used to where for scientific laboratory environment but I reckon a beefed up...
jim barr
wandana@...
Apr 4, 2003 4:20 pm
10282
JIM: The hot wire anemometer uses the resistance change of a wire due to the temperature variations. The wire is fed with a constant current source. The wire...
garciah
garciah@...
Apr 4, 2003 6:41 pm
10283
Was wondering what the difference is between an induction generator (such as that described) and an induction motor?? Laurie Forbes [Non-text portions of this...
Laurie Forbes
lforbes@...
Apr 4, 2003 6:43 pm
10284
hello , I am a part of a group that's building a health center for an area in my country (Israel) which is'nt connected to the grid (political isuues) and...
Hanan Levy
hanan_levy@...
Apr 4, 2003 7:20 pm
10285
Hi Nando, I am aware of how the hot wire anemometer works, my question was about their suitability for an outdoor continuous operation. The devices I have...
jim barr
wandana@...
Apr 4, 2003 7:20 pm
10286
Ken Bosley Wind Energy Consultant Wind Utilities Services PO Box 585, Sparks, MD 21152 410 771-4316 410 472-1081 nights homepage:...
You really need to provide a lot more information as to both projected consumption as well as local resources (wind resource as well as maintenance resources)...
Hi Jim : These type of anemometers are extensively used in aeronautics, to measure the TAS or True Air Speed of aircrafts. They are heated probes installed in...
Raul Verastegui
raulv@...
Apr 5, 2003 2:02 pm
10290
An update for those who are interested in attending my 'How to build a wind generator' workshop courses. The SEI course in Washington State this month is now...
Thanks for the descriptions of hot wire anemometers and how they work. I have wondered about them several times. The question I have is why we do not see them...
In recognition of the bravery of our fighting forces in the Middle East, Integrated Energies has taken some time out to return to fabricating something that...
The UK magazine "Practical Electronics" ran an article in their January 2003 edition detailing how to build a ultrasonic anemometer (very interesting to read...
Derek Conniffe
derek@...
Apr 7, 2003 1:55 am
10295
actually, you see something similar in many vehicles. it's called a MAF, or mass air flow sensor. Electronic fuel injection uses it to determine how much fuel...
Hi Dan, Using a hot wire anemometer for very precise measurements will at least require very well controlled power supplies and amplifiers; however in most ...
jim barr
wandana@...
Apr 7, 2003 1:56 am
10297
The consumption of precious juice (amps) by "hot wire" and all that circuitry isn't prohibitively high for a small turbine, Is it? Kerem Toral ... least ... in...
The industrial types described by others, (Aircraft pitots and car fuel management etc) certainly consume amps, but the very light weight devices I am used to...
jim barr
wandana@...
Apr 7, 2003 6:00 pm
10299
A hot wire anemometer can be made rugged but I wonder about problems introduced by sun heating causing errors. Another solution for a rugged wind speed sensor...
The diode anemometers may use low current from 1 to about 10 milliamps for a total of 100 to 250 milliwatts, all depends on many factors. Hot wire anemometers...
