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Messages 11802 - 11831 of 12472   Oldest  |  < Older  |  Newer >  |  Newest
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11802
Hello That outrunner is the "Gigatex" made by Lubos Chvatal (Freeair) Louis ... De : Ron van Sommeren <ronvans@...> À : lrk-torquemax@yahoogroups.com;...
Louis FOURDAN
fourdanlouis
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May 1, 2008
7:51 am
11803
Great minds think alike. :-) When a mate and I built out first BL motors (2003), we added cooling fins to the "bell". The flux ring is an insert. ...
Christo van der Merwe
skylarsa
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May 1, 2008
10:36 am
11804
Eeeh, make that 21statorpoles, not 18. Thank you Martin Götzenberg :) Vriendelijke groeten ;-) Ron van Sommeren near Nijmegen, the Netherlands ... From: Ron...
Ron van Sommeren
moderator_ron
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May 1, 2008
4:33 pm
11805
... Up to 15 KW. http://www.freeair.cz/ENGLISH/main-AJ.html Rick....
Rick Page
rick_page53
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May 1, 2008
6:38 pm
11806
Goedendag ;-) A new kid on the block: www.rcadvisor.com Prettig weekend ;-) Ron van Sommeren near Nijmegen, the Netherlands -- I am using the free version of...
Ron van Sommeren
moderator_ron
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May 9, 2008
8:59 pm
11807
Goedendag ;-) [Quote Ralph] "... at the beginning of climbing I found 153A = about 3000watts.after 10 sec and under full throttle only 1900 watts are needed...
Ron van Sommeren
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May 12, 2008
10:18 pm
11808
Life has a habit of getting in the way but I've managed to put a little more energy into this project. Look at http://www.warmlandet.com/ to see the start...
Paul O'Rorke
pororke2000
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May 14, 2008
4:56 pm
11809
... dare ... Unsprung weight becomes a factor when the ratio of unsprung to sprung weight gets too large. So the heavier your car is, the heavier you can make...
ryanbiffard
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May 14, 2008
8:22 pm
11810
Thanks for the feedback Ryan. This unit is indeed going to be heavy. Saving weight will need to be a consideration down the road for sure. Right now we'd be...
Paul O'Rorke
pororke2000
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May 14, 2008
8:46 pm
11811
Goedendag ;-) Winding coils over more than one statorpole, with Ralph O., Steve N., and Herbert K.: ...
Ron van Sommeren
moderator_ron
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May 18, 2008
12:23 am
11812
... I am not familiar with that, though the kelly 72V (actually 100V max) 300A controller might be a good controller to start with, its around USD$600 ...
ryanbiffard
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May 23, 2008
3:50 pm
11813
Goedendag ;-) 'We' need some help with this Halbach magnet array inrunner please: <http://www.rcgroups.com/forums/showthread.php?t=867564> Vriendelijke groeten...
Ron van Sommeren
moderator_ron
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May 26, 2008
11:24 am
11814
Hi Guys! Well I'm working since quite a long time on a brushless outrunner generator project. I've succeed to solve a lot of "issues" concerning this project...
hadrien dorfman
dodjob
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May 30, 2008
10:11 am
11815
If you are testing without a load, all the energy generated is dissipated as heat and burn the coils. Attached to a large resistor (or discharged battery), the...
Rick Page
rick_page53
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May 30, 2008
4:54 pm
11816
Hi Rick Not exactly. Without a load, the losses are only iron losses (copper losses are zero) The corresponding heat is generated inside the laminations (eddy...
Louis FOURDAN
fourdanlouis
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May 30, 2008
8:44 pm
11817
Hi Hadrien IMHO If you desire 60W under 12V you need 5A But 5A and internal resistance 4.2 ohm means 21 V .. That is not compatible. Your windings are too much...
Louis FOURDAN
fourdanlouis
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May 30, 2008
8:57 pm
11818
maybe you should switch to one much thicker wire that will drop its dc resistance what speed are you running your generator at? or what is its...
arthurok
arthurok_2000
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May 31, 2008
2:29 am
11819
... Something seems wrong. I calculate you'd need 3 parallel wires each 40m long to get 4 ohms resistance. As others have pointed out, you need to lower the...
Rick Page
rick_page53
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May 31, 2008
3:58 am
11820
Hi all! First thanks a lot for your time :-) When I've said "under load" I meant that the generator was connected to a batterie and charging... :-) sorry for...
hadrien dorfman
dodjob
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May 31, 2008
9:38 am
11821
why dont you rewind it as a single phase generator use much thicker wire and put all the coils in series that way you will generate a...
arthurok
arthurok_2000
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May 31, 2008
9:43 am
11822
Hi, Well... I've never thought about it.. Won't have any problem to linearize it? As soon as my target is DC... well I do not know... best regards, hadrien ......
hadrien dorfman
dodjob
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May 31, 2008
9:49 am
11823
ive been planning to build a generator similar to what you are building can you tell me its physical size? they build out runner...
arthurok
arthurok_2000
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May 31, 2008
10:18 am
11824
Hi, well my generator is about 50mm ext diameter... for 60mm long... But I still don't really understand how it's working... How look the output? is it DC?...
hadrien dorfman
dodjob
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May 31, 2008
10:37 am
11825
Dear Hadrien, I have build a generator with permanent magnets and I did the following things to make it work. To determine the number of windings I made a...
jos franke
frankejos
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May 31, 2008
1:25 pm
11826
I haven't tried this but to me it seems that you could make a better generator by having strong magnets and a field weakener to cut down the cogging at very...
John Stanton
jcastanton
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May 31, 2008
1:31 pm
11827
Hi Hadrien There are several ways to minimize cogging in an outrunner alternator (generator), without affecting the output/efficiency too much. Rounding the...
Christo van der Merwe
skylarsa
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May 31, 2008
7:33 pm
11828
Dear Hadrien, I have build a generator with permanent magnets and I did the following things to make it work. To determine the number of windings I made a...
frankejos
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Jun 1, 2008
9:18 pm
11829
Goedendag ;-) See http://www.wattflyer.com/forums/showthread.php?t=35216 Vriendelijke groeten ;-) Ron van Sommeren near Nijmegen, the Netherlands -- I am using...
Ron van Sommeren
moderator_ron
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Jun 3, 2008
12:55 am
11830
Hi all! I'm back... I've founded some new information and I think it would be good to share them with you. There is a table called AWG (american Wire Gauge)...
hadrien dorfman
dodjob
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Jun 5, 2008
10:04 am
11831
I came across this website today, and was shocked to see the following formula: Efficiency = Power Out / (Power In x SCEF) where SCEF = Speed Ctrl Efficiency...
Christo van der Merwe
skylarsa
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Jun 5, 2008
6:03 pm
Messages 11802 - 11831 of 12472   Oldest  |  < Older  |  Newer >  |  Newest
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