Who did you get it from? Steve Spence Renewable energy and self sufficiency http://www.green-trust.org http://arduinotronics.blogspot.com/...
3026
sanjeev rao
sosweet_san
Nov 2, 2010 3:14 am
My apologies for not posting this doubt in related forum, but dont know where to go with it in axial flux we are following a rule of thumb as poles are related...
3027
The Dragon
nogardthe1
Nov 11, 2010 3:20 am
Woke up this morning wondering about something... Why do you offer a motor, belt driving an alternator on your website, instead of offering a motor with an...
3028
Steve Spence
sspence65
Nov 11, 2010 3:31 am
alternators are ideal for high speed engine driven projects, due to ease of power control. cheaper too. an axial flux on that engine gen application would...
3029
The Dragon
nogardthe1
Nov 11, 2010 11:53 pm
Ahhh... And here I was thinking that an axial might allow the motor to be throttled down, thus reducing the noise output. I never dreamed that using an axial ...
3030
Steve Spence
sspence65
Nov 12, 2010 12:14 am
Throttling down the engine reduces the available hp. That engine is only 6hp to begin with (3kw max). The magnets in an axial flux cost more than a car...
3031
N Patel
bluepearl_0104
Nov 21, 2010 12:20 pm
Hello I just knew about 'programmable Variable Coil Resistance' in Vertical Axis Wind Turbine. does anyone know how it works? Thanks...
3032
Steve Spence
sspence65
Nov 21, 2010 12:36 pm
It's a way of engaging additional coils at higher wind speeds, ostensibly to reduce cut in speeds. As there is little power in lower winds, it seems like a...
3034
aeonarc
Dec 14, 2010 11:03 pm
CALL FOR WORKSHOPS: Lady Liberty Fair - June 16-18, 2011 Black Swan Lake Campground, Clear Springs, Indiana (between Bedford and Brownstown) Basic Info:...
3035
allenscott52
Dec 24, 2010 1:01 pm
Hello, Sorry to ask a question that may sound stupid as I am a mechanical guy. I built a small model axial flux alternator for my turbine much like all the...
3036
sspence
sspence65
Dec 24, 2010 1:03 pm
The more load you put on the unit, the more it slows, requiring more wind to power the load. The voltage varies, so it cannot power a inverter without...
3037
allen scott
allenscott52
Dec 24, 2010 5:41 pm
I guess to expand my question a little further... I do see the more direct load I place on the turbine that it slows. I do plan to add some rectifiers. ...
3038
Steve Spence
sspence65
Dec 24, 2010 5:43 pm
The rectifier add a inconsequential load. The inverter adds a measurable amount, but not very significant in the grand scheme of things. You will still need...
3039
Erik Akia
erikakia
Dec 24, 2010 6:09 pm
I will qualify this comment in that I have not looked in the last year but last I knew you could not find a grid tie inverter that would directly couple the...
3040
James Morris
james-morris...
Dec 24, 2010 11:55 pm
To measure output you need to measure both voltage and amperage. But it's not quite that simple, because amperage depends on resistance, and too much amperage...
3041
Steve Spence
sspence65
Dec 24, 2010 11:56 pm
I just use a shunt and a amp hour meter, like the bogart trimetric, or the outback flexnet dc. On Fri, 24 Dec 2010 11:06:35 -0500, James Morris ... -- Steve...
3043
James Morris
james-morris...
Dec 25, 2010 2:53 pm
To measure output you first need to give the alternator a load. The easiest load to use is simple resistors, (one identical resistor on each phase, if you are...
3044
Dan Fink
danbob88
Dec 25, 2010 3:16 pm
Allan; You'll need rectifiers no matter what you end up doing for a grid-tied inverter. Even the direct ones, which use no battery bank, take only DC input. ...
3045
Joe mijdtr
joeokforme
Dec 29, 2010 1:20 am
http://people.clarkson.edu/~pillayp/c12.pdf...
3046
N Patel
bluepearl_0104
Jan 8, 2011 10:17 pm
Hello I have a question about winding coil. What would be the best way to wind the coil, using multiple wires or the single wire? I have 15 gauge spool. I have...
3047
Steve Spence
sspence65
Jan 8, 2011 10:18 pm
multiple strands allow for heavier current output. Multiple smaller strands allow for same current output, but easier coil winding. On Sat, 08 Jan 2011...
3048
N Patel
bluepearl_0104
Jan 9, 2011 1:16 am
Thanks for suggestion Steve. Since I have already made coils of 15 gauge, single strand and 100 turns, I assume that it would give comparitivly higher voltage...
3049
Steve Spence
sspence65
Jan 9, 2011 1:22 am
multiple strands of the same gauge will provide more amps (if you have the wind to push it). Multiple strands of smaller gauge will make your coils easier to...
3050
Dan Fink
danbob88
Jan 9, 2011 5:02 pm
Hello; Perhaps I can help clarify Steve's comments for you. It's always better to use a single strand of wire, as multiple strands will always be slightly...
3051
Steve Spence
sspence65
Jan 9, 2011 5:36 pm
Thank you, Dan. The only time I use two in hand is when I'm doing a 12v machine. I've found some motors wound that way when rebuilding them. ... -- Steve...
3052
N Patel
bluepearl_0104
Jan 13, 2011 12:43 am
Thanks Dan for your suggestions. It helped me a lot taking decision. Nirav ________________________________ From: Dan Fink <danbob88@...> To:...
3053
keithmobile73
Jan 19, 2011 12:13 am
next step is to bolt it up to the truck. im going to try it on 12dcv 24dcv and 48dcv at 5 mph 10 mph 15 mph etc and see how she does. She's wired y , i guess...
3054
Steve Spence
sspence65
Jan 19, 2011 12:18 am
In one of Hugh Piggott's documents, he showed a externally switched wye/delta setup. On Tue, 18 Jan 2011 09:14:11 -0500, keithmobile73 ... -- Steve Spence ...
3055
Jitender Kumar
jitender.1705
Jan 22, 2011 3:07 am
hello friend                   if you use same SWG wire eg. 15swg two or more wire for making a coil .tha means you are increas the current...
3056
myrontokachi
Feb 1, 2011 2:22 am
I'm in the process of starting to work on a wind power system and am interested in using salvaged parts for the motors and control systems. I've done some...
