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aussiekiwi
Newbie
Joined: 08/12/2007
Location: AustraliaPosts: 10 |
| Posted: 04:37am 22 May 2008 |
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hello everyone have just finished putting up my 13ft geared wind turbine running the new cog free smart drive wire as 2 poles in series gearing is 1 to 3 rectifiers are on turbine dc down wires problem is when connected to batteries it does not turn much but put a bulb inline and the thing takes off am running a 12 volt system father thinks my electrol gearing is not right any suggestion on want smartdrive to use also which way to go with wiring any help would be great |
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KiwiJohn
Guru
Joined: 01/12/2005
Location: New ZealandPosts: 691 |
| Posted: 06:15am 22 May 2008 |
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I expect "electrical gearing" is your problem all right. I think you are trying to make too many volts and not enough amps. Sorry, but I dont understand "2 poles in series", can you give more information on how your smart drive is wired? |
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aussiekiwi
Newbie
Joined: 08/12/2007
Location: AustraliaPosts: 10 |
| Posted: 02:41pm 22 May 2008 |
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hello kiwijohn my smartdrive is a new 36 pole i have rewired it to this wired as 2 pole in series off glens diagrams
http://www.thebackshed.com/windmill/FPRewire.asp
i did do some measurements the other day it was putting out about 35 to 50 volts and was barely turning |
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KiwiJohn
Guru
Joined: 01/12/2005
Location: New ZealandPosts: 691 |
| Posted: 02:58am 23 May 2008 |
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Hi, I think there is something wrong with your stator wiring. OK, thanks, I should have taken notice of Glen's diagrams. 2 poles in series is a low voltage/ high current configuration but you seem to be getting high voltage as I would expect something like only 5 or 10 volts when 'barely turning'.
Is it practical to post a picture of your stator wiring? |
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GWatPE
Senior Member
Joined: 01/09/2006
Location: AustraliaPosts: 2127 |
| Posted: 05:25am 23 May 2008 |
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Hi Aussiekiwi, some punctuation might make it a little easier to understand your post. It looks loke you have unfortunately rewired back to a series arrangement. You should have groups of 2 series coils that are placed in parallel... Gordon.
become more energy aware |
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aussiekiwi
Newbie
Joined: 08/12/2007
Location: AustraliaPosts: 10 |
| Posted: 02:24pm 23 May 2008 |
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Gordon will take it down over weekend and check my wiring.thanks to the both of you. |
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aussiekiwi
Newbie
Joined: 08/12/2007
Location: AustraliaPosts: 10 |
| Posted: 08:43am 25 May 2008 |
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kiwijohn here is a picture of my stator wired to a 2 poles in series.I have also upload a picture of the turbine.I am not sure which way to wire this stator.Any help would be great
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brucedownunder2
Guru
Joined: 14/09/2005
Location: AustraliaPosts: 1548 |
| Posted: 09:11am 25 May 2008 |
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hi ,Aussiekiwi,,
nice to see your project. I'm interested in the gearbox and the way it,s constructed. Is it bronze helical cut gears ? Where did you get this from ,,if thats not an invasive question ,,like ,,out of a bus,car,some sort of machinery.????.
I've got Glenn's and Trevor's F/G 14-15 foot blades ,,,,so will be watching your progress with the 13 footers with interest...
Bruce
Bushboy |
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aussiekiwi
Newbie
Joined: 08/12/2007
Location: AustraliaPosts: 10 |
| Posted: 02:38pm 27 May 2008 |
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hi Bruce
The whole thing is cast iron.It has steel helical cut gears.It was a turbine off a local farm dont know who made it got no markings on it.My dad machined down the body so we could use a standard shaft and bearing housing inside the main body and the smart drive justs bolts on the back |
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Gill
Senior Member
Joined: 11/11/2006
Location: AustraliaPosts: 669 |
| Posted: 10:38am 28 May 2008 |
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Hello aussiekiwi,
The wiring seems to be OK from what I can make out of it. As you say, 2 x poles in series, 3 phase- Star configuration, times 6 in parallel.
What is the connection when the bulb is not? Perhaps you have a short circuit there, and that is a back EMF brake???
was working fine... til the smoke got out.
Cheers Gill _Cairns, FNQ |
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permaclutter
Newbie
Joined: 04/02/2007
Location: AustraliaPosts: 19 |
| Posted: 04:15pm 28 May 2008 |
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Thats a 4 blade Dunlite,
ive got a manual burried about the place if anyones interested.
also have the machine sitting in my toilet but have never got the courage up to try it.13 ft galvanised iron blades just look too scarry at high speeds for me, my hub has had 2 spokes welded up long before i got, it way back in 1990 ish. from memory it was meant to be about 400 watts 32 volt. I have seen the remains of 3 of these that didnt furl properly, very ugly and a long way from the tower.
from memory the castor of the tail was used to set the charge rate.The instuction make interesting reading so i will try to find them scan and post if thats not to uncool for copyright issues.
Lyn |
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aussiekiwi
Newbie
Joined: 08/12/2007
Location: AustraliaPosts: 10 |
| Posted: 03:29am 29 May 2008 |
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Hello Permaclutter,
I would be interested in having a look at manual.I have the old galvanised blades they do look a bit scarry.have replaced them with a set of fibreglass blades.As for the tail have made my own design.
Gill,
I am new at this.When bulb is not connected turbine goes straight to batteries.I am using c40 charge controller in load mode to dump excess to hot water element.Problem is when testing my stator voltage is too high with current wiring.Am not sure which way to wire this thing up. |
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Gill
Senior Member
Joined: 11/11/2006
Location: AustraliaPosts: 669 |
| Posted: 04:18am 29 May 2008 |
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OK, So what have you got?
Do a sketch will be easiest to understand. It doesn't matter if you're unsure of an area of the wiring layout, but do show and identify every terminal please.
You are aware that a spinning wind generator not connected to a battery will likely have a voltage much higher than 12v, right? With a gearbox it's difficult to know what the Rotor RPM is when the blade is "bearly spinning". Things may be fine and you may be really fortunate to have a low speed turbine. If that gearbox ran from galvanised iron blades, maybe the step up gearing is large. Too many unknowns at this stage to speculate further. A data snapshot of the blade rpm, rotor rpm or gear ratio, battery voltage & current would help.
was working fine... til the smoke got out.
Cheers Gill _Cairns, FNQ |
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