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keithw2112
Junior Member
United Kingdom
103 Posts |
 Posted - 08/01/2008 : 21:08:02
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HI GUYS HAPPY NEW YEAR TO YOU ALL AT THE MOMENT I AM RUNNING 2 SOLAR PANELS PLUS MY WIND GEN CHARGING A SEPARATE BATTERY BANK I WOULD LIKE TO COMBINE THE PANELS AND WIND GEN TOGETHER TO THE SAME BATTERY BANK
THE 3 11O AH BATTERYS HAVE A JUTA SOLAR CONTROLLER CONNECTED. MY GENNY IS A RUTLAND WITH RUTLAND CONTROLLER CAN I CONNECT THE RUTLAND CHARGER TO THE SAME BATTERY BANK?
IF IT WERE SUNNY AND WINDY WOULD IT OVERCHARGE BATTERYS AS TWO LOTS OF VOLTAGE ENTERING THE BATTERY BANK
ANY HELP WELL APPRECIATED
WINDS HOWLING AT THE MINUTE LOOKS A GOOD WEEK FOR WIND
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speo
Junior Member
Canada
113 Posts |
Posted - 09/01/2008 : 02:01:09
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"CAN I CONNECT THE RUTLAND CHARGER TO THE SAME BATTERY BANK?"
Hoping that the Rutland charge controller has a dump load feature and hoping that it works at the same voltage as the Juta controller, yes, you can connect both charge controllers to the same bank. Each one will sense the battery state of charge and will handle the sources of power accordingly. At least that's how I see it.
Also, you can charge the bank without the Juta controller, if the Rutland controller is big enough to handle all power generated by the panels and the turbine.
Speo
www.windpulse.com |
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DPMeters
Starting Member
United Kingdom
6 Posts |
Posted - 11/01/2008 : 16:53:35
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Hi Keithw2112
I agree with Speo, however please take note of the remark regarding dump loads, it is MOST important in your case. It is a simple area to forget about.....imagine the wind is howling, your batteries are charging nicely and then become fully charged, what happens next is the controller switches off and the turbine becomes unloaded. The result being the turbine starts spinning faster and faster until one of three possibilities, you have a 'brake' switch to operate and that solves it, your turbine spins so fast it self distructs (blades flying in all directions) or lastly the voltage ramps up so high it 'pops' any control circuits in the controller.
I know its not a happy outlook and I don't wish to be a kill joy but nine times out of ten end users are not told about this. The simplest answers are to either start using a load from the battery so it never switches the controller off, fit a dump load controller and dump heater etc or a manual brake switch fitted to the turbine AC output, it can be difficult and disasterous on the DC side.... if the turbine is spinning fast there will be a massive instantaneous current which could blow the bridge rectifier. So, the simplest solution is just to apply a load to the battery. Of course you will be losing any chance of the wind power available whilst 'braked' so if you fit a dump load heater you could have hot water being heated once the batteries are charged :-)
If you need more advice we are here to help.
Regards. Peter www.DPMeters.co.uk tech@dpmeters.co.uk |
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keithw2112
Junior Member
United Kingdom
103 Posts |
Posted - 12/01/2008 : 10:49:27
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hi dave /speo thanks for both replying i think ill just go with the switching a load on for now as i dont quite understand about dump loads or how they work
thanks anyway |
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speo
Junior Member
Canada
113 Posts |
Posted - 12/01/2008 : 16:25:25
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Hi keithw2112, you said you will go with "switching a load on". That load that you want to switch on is exactly the dump load, and a shunt regulator can switch it for you, without your supervision.
Think of the shunt regulator like an automatic switch that turns on/off a load. This switch (regulator) detects the battery state of charge and turns on/off the dump load.
ghurd sells some nice shunt regulator kits for less than $20. I got one, I assambled and tested it and it works really nice.
Speo
www.windpulse.com |
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Topic |
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SOLAR/WIND CONTROLLER QUESTION
