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Author Topic: Cable length, sizes and components  (Read 9928 times)
billi
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« Reply #45 on: January 29, 2009, 09:25:07 PM »

i would wait and then decide, cause you will hardly know now   how often the dump will be activated ...

the dump element and the chargecontroller of my windturbine just passed on a part of the power (from the turbine) to the dump (heat element)  the rest was still flowing into the battery ...... so you hardly will see a constant dump

Sure if you dump via the Victron relay then  you decide what you take out of the battery ( but with the side effect that you are not charging the battery like it should be )

I would go for a normal dump load controller  like the morningstar , or whatever your (good  Roll Eyes )supplier recommends
And additional ( like the document  about the Victron)    a small heating device  perhaps 1/3 of  the rated output power of the turbine  or a dim able advice that you can scale up depending on windpower

Again i would use a heatpump like these with 500 watt input to get 2000 watt heat

http://www.ochsner.com/typen_ww.htm

But these are just thoughts as well , and a windturbine needs a reliable dump idea ( thats why i suggest 2)

Billi
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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
Justme
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« Reply #46 on: January 29, 2009, 10:14:42 PM »

You could use the periods when you would dump power as part of your planned equilization charge regime.

Justme
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Navitron solar thermal system
30 x 58mm panel 259L TS
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FX80 Solar controller
2 x Victron Multiplus II 48/5000/70
Cerbo GX & GX 50 touch
BMV 700
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48v 1000ah
Grid Possibly coming soon
Stefan (S.T.E.F.)
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« Reply #47 on: January 30, 2009, 09:08:46 AM »

You guys just like to confuse me even more!
I could dump via the victron, but I can't because I won't charge my batteries properly. But I could use a dump controller but I still need to do an equalization charge?
Can you elaborate?

Stefan
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Finally building this year after 3 years of planning / building control / finance mess.... phew.
billi
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« Reply #48 on: January 30, 2009, 09:59:57 AM »

Quote
You guys just like to confuse me even more!

Confuse ?  thanks for your time guys would be more appropriate  Wink

Perhaps you read a bid more about battery charging first

I always said you can use the victron to pass surplus  power into the house , but you need a proper Charge controller and a dump element as well with your setup  to make sure you fully charge the battery from time to time

Perhaps you should read the posts  a bid more detailed

Quote
the dump element and the chargecontroller of my windturbine just passed on a part of the power (from the turbine) to the dump (heat element)  the rest was still flowing into the battery ...... so you hardly will see a constant dump

Sure if you dump via the Victron relay then  you decide what you take out of the battery ( but with the side effect that you are not charging the battery like it should be )

I would go for a normal dump load controller  like the morningstar , or whatever your (good  Roll Eyes ) supplier recommends
And additional ( like the document  about the Victron)    a small heating device  perhaps 1/3 of  the rated output power of the turbine  or a dim able advice that you can scale up depending on windpower


so i used the the chage controller and the dump element in my shed to provide save  windturbine operation  and to fully charge the battery  and then after battery is fully charged and there was still  good wind out there a AC heater in the house kicked in  controlled by the Victron relay


Billi
« Last Edit: January 30, 2009, 10:09:59 AM by billi » Logged

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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