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Adam
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« Reply #90 on: June 06, 2009, 06:31:20 PM » |
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Been breezy here today, getting 15-20 amps, 52volt at 7m/s Approx 750 to 1000w at 7m/s all day  |
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billi
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« Reply #91 on: June 06, 2009, 08:09:37 PM » |
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Great ....
Are there slip rings or is it a cable twist idea in the miniwind turbine ? and did you get a charge controller/rectifier with it or is the out put from the turbine 48 volt DC ? Or what else could you reuse from the first windturbine that did break down
Thanks
Billi
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Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
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Adam
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« Reply #92 on: June 06, 2009, 10:19:37 PM » |
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No sliprings, it uses the cable twist but not a issue as i have only unwound the cable 1 turn in 13 months, it does not furl like upwind tail'ed turbines.
It comes with a 100amp rectifier which can be mounted in the turbine, i have mine at the house end so i can make full use of my 3 core cable as the gerenator output is 3 phase AC (6 wire, can be wired star or delta)
I use my Morning star controller i bought for my first turbine, the only thing i reused is the Navitron mast and dump loads, the chinese controller cant cope with the current as i have had 45amp @60volt out of this turbine once in a gale.
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« Last Edit: June 06, 2009, 10:24:14 PM by Adam »
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Eleanor
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« Reply #93 on: June 07, 2009, 12:25:15 AM » |
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Hi Adam, sounds good! Are you intending to have "summer" and "winter" blades? This always seemed to be the best option for the Miniwind. Have you experienced the "clapping" yet?
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I'm doing this for free, please be nice to me  "Very few batteries die a natural death ... most are murdered"  |
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Adam
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« Reply #94 on: June 07, 2009, 09:53:50 AM » |
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Hi Eleanor
Not sure what i'm going to do with regards to the blades, idealy summer and winter ones like you say but the 3m blades give out so much more power than the 1.8 i dont want to go back, after all the 3m are desighned to cope with high winds.
Only had the 3m running 2 days so no experence with the "clapping" yet.
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StBarnabas
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« Reply #95 on: June 07, 2009, 10:33:51 AM » |
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Been breezy here today, getting 15-20 amps, 52volt at 7m/s Approx 750 to 1000w at 7m/s all day Hi Adam great! Though I do prefer SW winds to NE. It has been warner in Northumberland some Januaries! What a difference a week makes... Sean |
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 Gestis Censere. 40x47mm DHW with TDC3. 3kW ASHP, 9kW GSHP, 3kW Navitron PV with Platinum 3100S GTI, 6.5kW WBS, 5 chickens. FMY 2009. |
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AlanM
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« Reply #96 on: June 07, 2009, 07:59:05 PM » |
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Adam,
Can you change the pitch setting of the blades so that for example, you could have a summer setting and then adjust to a shallower pitch in winter ?
Alan
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Adam
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« Reply #97 on: June 07, 2009, 10:48:49 PM » |
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Hi Adam
great! Though I do prefer SW winds to NE. It has been warner in Northumberland some Januaries! What a difference a week makes...
Sean
Too right! been draining/jetting field drains this week on monday i was burning up with the heat dreaming of air con in my digger, by friday i was glad to have a heater Adam,
Can you change the pitch setting of the blades so that for example, you could have a summer setting and then adjust to a shallower pitch in winter ?
Alan
Yes i expect so, the blades came with an insert that sets the pitch, each insert had the degrees on so i expect all you would have to do was to change the insert's for a different degrees. |
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Adam
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« Reply #98 on: July 17, 2009, 01:47:53 PM » |
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Quick update, today wind approx 8-8.5ms, turbine pushing out 20-30amps at 55v, once the turbine reaches 27-30amps the arodynamic brake cuts in, blades gives a buzzing noise and turbine slows 15-20amps and off it go's again, impressed with the braking system could do with a higher cut in speed, blades can be trimmed to give more power in high wind but at a cost of looseing some of the low wind power.
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StBarnabas
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« Reply #99 on: July 17, 2009, 05:26:58 PM » |
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Cheers Adam
good wind day. Useless for solar 0 kWh today!
Sean
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Gestis Censere. 40x47mm DHW with TDC3. 3kW ASHP, 9kW GSHP, 3kW Navitron PV with Platinum 3100S GTI, 6.5kW WBS, 5 chickens. FMY 2009. |
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AndyB
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« Reply #100 on: September 03, 2009, 06:35:14 PM » |
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I have a Futurenergy turbine and although not perfectly sited i have been thinking of fitting the 3M blades. Reading Adams posts has encouraged me more i feel. As futurenergy use generic blades does anybody know who manufactures them?
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NON MEUS MENDUM
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Adam
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« Reply #101 on: September 23, 2009, 09:57:10 PM » |
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Hi Alan, the 3m blades are manufactured by Miniwind, thanks adam
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Adam
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« Reply #102 on: November 25, 2009, 10:42:07 PM » |
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I haven't been on for a while but i havent anything to say  The turbine and all the bits and bob's are working fine. We have recently had some strong and gale force wind's, i have left the 3m blades on and decided to keep them on the turbine permantly, it's far safer as they restrict the turbine speed and turbine output with it's stalling. With the 1.8m rotor my highest output was 45amp on the controller's limit  with the 3m blades the output is restricted to 20-25amp in the highest winds not exactly a 2kw turbine but a far higher average output and most important...... i can relax when the gales blow  . I have a 6 blade 1.8m hub and blade set for sale  |
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Eleanor
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« Reply #103 on: November 25, 2009, 10:51:16 PM » |
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Adam, glad you're back and your turbine is still going well. We have heard that there have been some problems with the manufacture of the 3m blades. I wondered if it affected you but it seems not. Presumably you are checking them regularly for signs of fatigue  I think it was more to do with noise than anything else but as we were planning on putting 3m blades on in the summer we'd be interested to know how they fare over the winter |
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« Last Edit: November 26, 2009, 09:39:45 AM by Eleanor »
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I'm doing this for free, please be nice to me "Very few batteries die a natural death ... most are murdered" |
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Adam
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« Reply #104 on: November 26, 2009, 08:31:05 PM » |
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Hi Eleanor, I didint know about any problems with these blades but i have not been checking them thou  What are the problems? The blades are almost silent until the arodynamic brake cuts in then you get a buzzing sound not that noticable in the house but no noiser than the navitron was. The 3m blades control the turbine better in high winds preventing overspeed and high tempratures within the windings. May lower the turbine and check the blades  |
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