I'm wondering if there's any data on the efficiencies of having more phases. To my mind it seems like there may be some potential benefits, such as perhaps...
2830
doug duncan
duncman2003
Mar 1, 2010 2:53 pm
________________________________ From: "OOWONBS@..." <OOWONBS@...> To: axialflux@yahoogroups.com Sent: Fri, February 19, 2010 4:28:38 AM ...
2831
Stephen Barone
barone_email
Mar 1, 2010 2:54 pm
Just curious how you build the rotor & what type of bearings etc....
2832
sonofgodbyhim
Mar 1, 2010 2:56 pm
I have built my 2nd axialflux alt. and wound my coils to aprox. 40 wraps per coil. Running at somewhere between 300-500 rpms I get 15 volts! But, increasing...
2833
sanjeev rao
sosweet_san
Mar 1, 2010 2:56 pm
sorry to interrupt steve, if i use 140 turns of 14g and six coils/stator with 8 magnets, and dual rotor's+dual stator will that increase the output? ...
2834
Charles Evans
chazsql
Mar 1, 2010 2:59 pm
Steve, How does the speed of blade rotation figure into the volts/amps produced by a turbine? Say, 18g., 2 in hand for 35 turns. What should the cut in speed...
2835
sanjeev rao
sosweet_san
Mar 1, 2010 3:04 pm
... do i need to use gear's to increase from 250 to 650? ... for individual coils it shows me 2.1ACV, i am using 9 coils , but for 9 coils if it is 2.1 x 9 it...
2836
Steve Spence
sspence65
Mar 1, 2010 3:11 pm
... No, with 8' to 10' blades, and a 12" rotor, 25 mph wind will make about 650 rpm ... it's *3 not *9, as every third coil is in series, and there are 3 sets ...
2837
Steve Spence
sspence65
Mar 1, 2010 3:32 pm
I use a 1/4" 12" steel plate (hydrocut from plate steel), and harley motorcycle wheel bearings. Steve Spence Renewable energy and self sufficiency ...
2838
Charles Evans
chazsql
Mar 1, 2010 3:39 pm
Isn't he measuring before the rectifier? AC voltage? _____ From: axialflux@yahoogroups.com [mailto:axialflux@yahoogroups.com] On Behalf Of Steve Spence Sent:...
2839
Steve Spence
sspence65
Mar 1, 2010 3:44 pm
Yes. Steve Spence Renewable energy and self sufficiency http://www.green-trust.org http://makingthewebwork.blogspot.com/...
2840
Steve Spence
sspence65
Mar 1, 2010 4:23 pm
with 8' blades, the cut in speed will be around 7 mph. 35 turns is good for a 12v machine. max rpm will be around 650. the tail should start turning the blades...
2841
Drew Baden
drew4justice
Mar 1, 2010 5:43 pm
With Steve Spence's good grace a few months ago, he has allowed me to post this message. Â I can supply the following parts for $150, shipped to your door in...
2842
Drew Baden
drew4justice
Mar 1, 2010 6:42 pm
Hello sir, Â I can supply you the following parts for $150 to your door. Â This is a total of 8 peices which includes the magnet layout template. Â Thank...
2843
derekwmoss@...
derekwmoss
Mar 1, 2010 8:30 pm
hi there there is only one reason there are three phases only and that is three phases are the minimum require to get a self starting motor and the min was set...
2844
I.M.
solounplaneta
Mar 2, 2010 11:44 pm
I just got an answer from the China magnet provider.... i am just pasting it on this email. I wish we could all order as a group and keep best price from...
2845
doug duncan
duncman2003
Mar 3, 2010 12:02 am
would be very interested in seeing the pictures.............. duncman ________________________________ From: Daniel Bromley <daniel.bromley@...> To:...
2846
Steve Spence
sspence65
Mar 3, 2010 12:03 am
That has nothing to do with why we use 3 phases in our alternators. It's convenient. You don't need "smoother dc" to your batteries. Steve Spence Renewable...
2847
explorer
sonofgodbyhim
Mar 3, 2010 11:03 pm
... From: axialflux@yahoogroups.com [mailto:axialflux@yahoogroups.com]On Behalf Of doug duncan Sent: Monday, March 01, 2010 6:20 PM To:...
2848
ferrand
ferrandst
Mar 3, 2010 11:27 pm
One way of "gearing" up a hydropower unit with a slow speed is to drive hydraulic rams off a crankshaft, and use the hydaulic pressure developed to drive "oil...
2849
explorer
sonofgodbyhim
Mar 4, 2010 12:33 am
This was my first alternator which was built using a house trailer hub. It only had one disc of 12 magnets but was a pretty good unit! ... From:...
2850
derekwmoss@...
derekwmoss
Mar 4, 2010 12:35 am
hi there why the pop at me steve i was only trying to help. every body is entiteled to there oppinions steve. i said three phase was convenient and cheap and...
2851
Denis Croombs
deniscroombs
Mar 4, 2010 12:35 am
I and a group of friends are making 6 x 17ft turbines, and so need at least 192 3" x 1.5" x .75" N42 magnets, does anyone have contacts that they can share...
2852
Denis Croombs
deniscroombs
Mar 4, 2010 12:35 am
... Hi Ian Yes they were one of the first we contacted, but the cost of shipping to Ireland is very high from the US. Regards Denis...
2853
mineb
themailboxre...
Mar 4, 2010 12:36 am
could this be used to make a wind turbine generator if you put a large wheel on the wind turbine shaft that connected to the smaller wheel on the generator...
2854
explorer
sonofgodbyhim
Mar 4, 2010 12:36 am
... From: axialflux@yahoogroups.com [mailto:axialflux@yahoogroups.com]On Behalf Of doug duncan Sent: Monday, March 01, 2010 6:20 PM To:...
2855
explorer
sonofgodbyhim
Mar 4, 2010 12:36 am
Hi Doug, I took some better pictures today of my dam. Chris ... From: axialflux@yahoogroups.com [mailto:axialflux@yahoogroups.com]On Behalf Of doug duncan ...
2856
explorer
sonofgodbyhim
Mar 4, 2010 12:38 am
... From: axialflux@yahoogroups.com [mailto:axialflux@yahoogroups.com]On Behalf Of doug duncan Sent: Monday, March 01, 2010 6:20 PM To:...
2857
explorer
sonofgodbyhim
Mar 4, 2010 12:41 am
Hi Dan, Here is a picture of my setup, I'll see if I can get some better ones. Chris ... From: axialflux@yahoogroups.com [mailto:axialflux@yahoogroups.com]On...
2858
Bert
bertbitter
Mar 4, 2010 12:41 am
To facilitate foreign purchasing and product searching Iv'e been using: http://www.alibaba.com/ You can look anywhere in the world and also get access to...
