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Re: Multiple DC Generators

2 hours 49 min ago
The usual chargers are smart enough to act as a current/voltage regulators, depending on load (battery) status. Also, the battery itself acts like a variable load (variable internal resistance) depending on its charging state.

Re: shorted coil?

Thu, 09/18/2014 - 20:19
I live in a wind zone 2 and these turbines are in my mind only putting out about half of what I would expect of them altough I have seen an instatainous 2700 watts out of them together.  I don't know why I mess with wind but I still like doing it a bit...

Re: shorted coil?

Thu, 09/18/2014 - 20:05
joestue
I am not sure what movs are. 

I will probly fly it, till the next problim. 

My next project is to lower the 80' tower and replace the eight foot blades with 9' ones. 

Then I need to figure out how to raise a lattice tower which will be much ...

Re: shorted coil?

Thu, 09/18/2014 - 19:36
Could very well be lightning induced over voltage failure.
I would replace all of them, and add a handful of  MOV's on the DC side of the rectifier, not the ac side.

there is no reason to buy  600 or 1200 volt rectifiers, they have a higher forward vol...

Re: shorted coil?

Thu, 09/18/2014 - 19:10
Update
I lowered the turbine today.  It has five rectifiers and it turned out to be the last one that I checked, of course.  I am happy that is what it ended up being and a bit surprised as it is a 35 amp rectifier and only has about 2 amps going throu...

Re: Multiple DC Generators

Thu, 09/18/2014 - 19:04
Dave
Welcome.

QuoteAs a side note, the charges are would essentially be voltage regulators. So, while i was on the right track, it seems i missed a crucial component 
Thanks again,

I don't understand what you mean by this comment.
Cheers
g...

Re: Dump/charge/ controller

Thu, 09/18/2014 - 17:57
Not quite sure what you are looking for but take a look at

http://gilks.ath.cx/~g8ecj/New_Turbine/new_controller.html and
[url=http://gilks.ath.cx/~g8ecj/Mk3_Turbine/Mk3_controller.h...

Re: Multiple DC Generators

Thu, 09/18/2014 - 16:48
Oh, what a simple solution. Thanks for the direction! I think this solves the problem.

As a side note, the charges are would essentially be voltage regulators. So, while i was on the right track, it seems i missed a crucial component 
Thanks again,...

Re: Multiple DC Generators

Thu, 09/18/2014 - 16:41
You could always put two (three or as many) chargers in parallel on a single battery (bank). They're all acting like current generators so every single one will "participate" to battery charging.

Every charger has reverse current flow protection so th...

Multiple DC Generators

Thu, 09/18/2014 - 16:00
I’m a newbie and I’ve learned a ton from this forum. Thanks!

I’m wondering about connecting multiple DC generators to a single battery bank. The threads discussing this seem to all say “it’s possible but not advised” and then they digress into a discus...

Re: Common neg for panel wiring

Thu, 09/18/2014 - 15:19
Why don't you use just two (thick) wires, connecting the three strings in parallel right at panel location? Do you have a separate charger for each string or something?

Re: 8FT Windturbine Furling

Thu, 09/18/2014 - 14:24
There is a 20 foot turbine on the route I take to buy groceries that uses tip braking. The tips rotate 90 degrees to the rotation acting as air brakes. It sits there with the tips tripped most of the time because it doesn't reset right.

Re: Common neg for panel wiring

Thu, 09/18/2014 - 14:18
What are you running for a charge controller? If it is MPPT series more panels into 2 strings.  Otherwise your ground wire has to be sized to carry the return current of all 3 strings, 3 times current rating  of the other wires. Not sure if there would...

Re: Dump/charge/ controller

Thu, 09/18/2014 - 14:14
Any one else?

Common neg for panel wiring

Thu, 09/18/2014 - 12:52
I want to add another string to the existing two strings of panels,but my conduct won't allow 6 wires (i know i can  but should i) run 3 red pos and 1 black neg to the combiner box  located in the house? Each string will have 3 panels  9 in all
  Jason

Re: Looking for input?

Thu, 09/18/2014 - 10:17
Great points, thanks! The thermosyphon seems like a better and simpler plan than the radiant in-floor heat. I'm sure glad I stopped by for some advice!

I'm pouring my footing next week and hope to start building after that.

Re: magnet piston engine

Thu, 09/18/2014 - 04:34


improved bearing housing mounting plates. The wooden mounts were moving and the system was lo...

Re: cheapest way to heat with PV

Wed, 09/17/2014 - 23:41
Given how PV prices have fallen, and the fact that PV doesn't need some elements such as anti-freeze or drainback or stagnation protection, and that PV can continue to work when it's too cold for thermal, eg in UK winter, I no longer expect thermal to ...

Re: 8FT Windturbine Furling

Wed, 09/17/2014 - 19:53
You probably have to see, or hear, a turbine run away to really appreciate this, but there is something to be said for the simplicity of furling.  I'm partial to this method as it doesn't rely on electronics to initiate something, or electrical loading...