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bought a small LVM 4 amp wind genny while on holiday in UK and want to tie into my existing solar system. Have a Morningstar ProStar 30M with spare capacity and want to tie in the LVM wind genny. Issue is the wind genny needs to dump load when batteries are full and Morningstar does not have dump terminal. How can the load diversion be handled as it needs to go to a 0.68 ohm 300w resistor
On Fri, 28 Apr 2006 01:05:28 GMT, "Scott Lang" wrote:
bought a small LVM 4 amp wind genny while on holiday in UK and want to tie into my existing solar system. Have a Morningstar ProStar 30M with spare capacity and want to tie in the LVM wind genny. Issue is the wind genny needs to dump load when batteries are full and Morningstar does not have dump terminal. How can the load diversion be handled as it needs to go to a 0.68 ohm 300w resistor
You didn't say what voltage your wind generator is, but a quick search
revealed the following two pages:
http://www.unlimited-power.co.uk/Aerogen_wind_turbines.html http://www.unlimited-power.co.uk/Aerogen_spec.html
It seems likely that you have the Aero2 model - which is rated at 4 amps, 12 volts. There are various regulators available according to the site, but I don't really see why you would need a 300w resistive load for a 50 watt gen - maybe to stop it glowing in the dark :) ! Or unless it is to make sure its speed is held right down.
According to the graph shown, its output is flat above a certain windspeed - about 50 watts.
Some regulator/ controllers can have a relay fitted to switch a dump load of that size - but I don't know enough about the Morningstar to advise. Usually its a matter of connecting a relay from one side of the output fet to either the pos or neg line (depends on circuit). Hope you get it sorted.
Eric Sears.
It is the 4 amp model the http://www.lvm-ltd.com/aero4gen.htm
Does anybody have a circuit that can divert the power to a resistor once the battery is fully charged? Many thanks
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"Scott Lang" wrote in message
bought a small LVM 4 amp wind genny while on holiday in UK and want to tie into my existing solar system. Have a Morningstar ProStar 30M with spare capacity and want to tie in the LVM wind genny. Issue is the wind genny needs to dump load when batteries are full and Morningstar does not have dump terminal. How can the load diversion be handled as it needs to go to a 0.68 ohm 300w resistor
Why not divert it to something besides a dummy load? Something usefull? No idea what you have but a 12 volt exhaust fan or something? Joe "Scott Lang" wrote in message
It is the 4 amp model the http://www.lvm-ltd.com/aero4gen.htm
Does anybody have a circuit that can divert the power to a resistor once the battery is fully charged? Many thanks
--
Friendly forum for all mobile travellers http://groups.msn.com/Caravanforum
"Scott Lang" wrote in message bought a small LVM 4 amp wind genny while on holiday in UK and want to tie into my existing solar system. Have a Morningstar ProStar 30M with spare capacity and want to tie in the LVM wind genny. Issue is the wind genny needs to dump load when batteries are full and Morningstar does not have dump terminal. How can the load diversion be handled as it needs to go to a 0.68 ohm 300w resistor
Joe I do not have anything to divert it to. I was thinking what else I could do with it, but there really is nothing. I dont like the thought of 'wasting' naturally generated power. I use my solar and now new wind generator in my small caravan/travel trailer. Spend a lot of time in the Australian Victorian alps where there is little sun and heaps of wind in winter. When everybody else goes north to the sun in winter I stay in the southern mountains and do gold mining just below the snow line. The heat generated by the resistance may help keep the air a tiny little warmer in my caravan/travel trailer when the batteries are fully charged.
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"Merlin-7 KI4ILB" wrote in message
Why not divert it to something besides a dummy load? Something usefull? No idea what you have but a 12 volt exhaust fan or something? Joe
"Scott Lang" wrote in message It is the 4 amp model the http://www.lvm-ltd.com/aero4gen.htm
Does anybody have a circuit that can divert the power to a resistor once the battery is fully charged? Many thanks
Hmmm Then why not use something that generates heat? An incandescent light bulb perhaps? They put off more heat per watt than light... Joe
"Scott Lang" wrote in message
Joe I do not have anything to divert it to. I was thinking what else I could do with it, but there really is nothing. I dont like the thought of 'wasting' naturally generated power. I use my solar and now new wind generator in my small caravan/travel trailer. Spend a lot of time in the Australian Victorian alps where there is little sun and heaps of wind in winter. When everybody else goes north to the sun in winter I stay in the southern mountains and do gold mining just below the snow line. The heat generated by the resistance may help keep the air a tiny little warmer in my caravan/travel trailer when the batteries are fully charged.
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"Merlin-7 KI4ILB" wrote in message Why not divert it to something besides a dummy load? Something usefull? No idea what you have but a 12 volt exhaust fan or something? Joe
"Scott Lang" wrote in message It is the 4 amp model the http://www.lvm-ltd.com/aero4gen.htm
Does anybody have a circuit that can divert the power to a resistor once the battery is fully charged? Many thanks
Joe the resistance will generate the heat just like a light bulb > wont it? Really do not want a light on all night attracts to much wildlife
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"Merlin-7 KI4ILB" wrote in message
Hmmm Then why not use something that generates heat? An incandescent light bulb perhaps? They put off more heat per watt than light... Joe
On Sat, 29 Apr 2006 16:20:55 GMT, "Scott Lang" wrote:
It is the 4 amp model the http://www.lvm-ltd.com/aero4gen.htm
Does anybody have a circuit that can divert the power to a resistor once the battery is fully charged? Many thanks
How handy are you with a soldering iron? Familiar with components? Basically at that power level it's not too difficult. Homepower mag archives have a shunt load diverting regulator - (but its more complicated than what I build). I would still use bulbs - but put them in a lightproof metal box that gets warm (use about 4 x 21 watt tail lamp bulbs). I use a 12v, 20 amp horn relay to do the switching - most have lasted for years. How to get a circuit to you?
Eric Sears (in NZ).
Eric no worries with the soldering iron, a circuit would be magic. No worries with the components and have expert help at hand if needed. Many thanks indeed from the big island across the pond. outbackaus at the gmail company
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"Eric Sears" wrote in message
On Sat, 29 Apr 2006 16:20:55 GMT, "Scott Lang" <nowhere@tobefound.com wrote:
How handy are you with a soldering iron? Familiar with components? Basically at that power level it's not too difficult. Homepower mag archives have a shunt load diverting regulator - (but its more complicated than what I build). I would still use bulbs - but put them in a lightproof metal box that gets warm (use about 4 x 21 watt tail lamp bulbs). I use a 12v, 20 amp horn relay to do the switching - most have lasted for years. How to get a circuit to you?
Eric Sears (in NZ).
On Mon, 01 May 2006 06:10:20 GMT, "Scott Lang" wrote:
Eric no worries with the soldering iron, a circuit would be magic. No worries with the components and have expert help at hand if needed. Many thanks indeed from the big island across the pond. outbackaus at the gmail company
OK Scott - I will try to work out you email.
If you don't get a msg in the next day or so, I must have misunderstood. It will be easier to correspond personally. I can scan a very simple cicuit that I have used - just designed from basic electronic knowledge - nothing I got directly from anywhere. Hope to catch you soon.
Eric Sears.
On Mon, 01 May 2006 06:10:20 GMT, "Scott Lang" wrote:
Eric no worries with the soldering iron, a circuit would be magic. No worries with the components and have expert help at hand if needed. Many thanks indeed from the big island across the pond. outbackaus at the gmail company
Scott
I've sent three msgs, and the final one didn't bouce - so I wonder if you got it? If not, I still haven't deciphered your email. Try my surname at the xtra company in nz if you like. Eric
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