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super windy
Junior Member
217 Posts |
 Posted - 29/02/2008 : 22:22:36
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Hi guys, well has most of you know today is wiiindyyy, actually is super windy, and my ametek was putting out at one point 4.65amps, batteries are now full and I'm using it to power all my 12v light circuit in my house, and on the treadmill one I'm powering the charger for this laptop, anyway has they say another windy day, another video value="http://www.youtube.com/v/N2qeAQ8Ja5Q.
To all the little gotwinds attempting to build their turbines, just remember if you fail, a failure is not a failure it's a lesson, keep going and get it to spin like mad, then watch it in amaze, it's amazing, sometimes scary,but definatelly addictive.
Super Windy
cheerio
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gotwind
Forum Admin
United Kingdom
958 Posts |
Posted - 29/02/2008 : 22:33:57
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Superb work.
I enjoyed it all Super Windy.
Ben.
The Futures Green - Getwind of it. |
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super windy
Junior Member
217 Posts |
Posted - 29/02/2008 : 23:05:51
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cheers Ben
I just had to go again and put more load on the ametek, I was losing faith with the ametek, but after today and what I have seen the voltage in my battery going up so quickly from 12.5 to 13.7 in about an hour or so, bering in mind that I'm charging a large battery bank 525 amps, my 50 watt solar panel probably takes 4 to 5 hours to do that, I LOVE MY AMETEK .
sorry that in most of the video it was dark but by the time I got home it was getting darker, I should of put the leds on in the shed, but hey in the excitment I lost track.
cheerio |
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dc2000
Starting Member
16 Posts |
Posted - 29/02/2008 : 23:59:56
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if I have it right your amtek and the treadmill are on the same type of bearing a good comparison here would be to swap the turbines and see what the difference in performance is between the two
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ghurd
Junior Member
USA
314 Posts |
Posted - 01/03/2008 : 03:27:36
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It looks like you were measuring short circuit amps, from pos to neg, before the blocking diode?
That is like shorting it to stop.
Be careful doing that in high winds.
G- |
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super windy
Junior Member
217 Posts |
Posted - 01/03/2008 : 16:51:51
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cheers for that ghurd
you are right I'm not sure what was happening there, but all I know is that the turbine did stop, only actually got going again when the wind did pick up again, but it did give me a chance to take it down has it was getting a bit dangerous with the wind that we had going here in the u.k, so this brings me to my next question how do I measure the amps comming out of the turbine, I know that the negative stick on my multimeter goes on the negative of my battery bank, but where does the positive goes, cheers
keep up the good work
Super Windy
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ghurd
Junior Member
USA
314 Posts |
Posted - 01/03/2008 : 17:04:46
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You know how a fuse goes in? All the amps go through the fuse.
An ammeter goes in the same way.
Cut the positive wire. The red meter lead goes to one cut side. The black lead goes to the other cut side.
Sort of like extending the positive wire, using the ammeter leads, with the meter in the middle.
It's a PITA to do with good connections, which is why I knew that wasn't what you were doing.
And the tiny meter wires add some resistance making the amps drop.
My friend used a big heavy switch in the positive wire. The switch also went to an extra terminal on each side.
The extra terminals are connected to the meter. Opening the switch (off) makes all the amps go through the meter.
That will read amps going into the battery, and the windmill won't stall to a near stop.
G- |
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super windy
Junior Member
217 Posts |
Posted - 01/03/2008 : 19:13:18
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cheers ghurd, that makes sense now, cheers for that
super windy |
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ametek and treadmill video
