Surrette - Relay Coil Incompatibi. [RE-wrenches]

Drake Chamberlin solar at ecoisp.com
Fri Dec 17 07:29:13 PST 2004


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Hello Windy and Victor,

Maybe this would work if I can find the right relay.  The Idec 24 volt DC 
models have a drop out at 10% less than the rated voltage.

If the batteries ever get totally discharged, they will be putting out 
around 2% under the rated voltage to begin with.  Put the series resistance 
on top of that, and the generator likely won't start.

I wonder if there are any commercially available DC voltage regulators.  If 
not, maybe one could be made with a Zener diode with the proper breakdown 
voltage.

Thanks,

Drake


>Or derive the ohms from knowing the manufacturer's rating of coil current, 
>and use ohms law, then calculate a resistor value to drop the voltage 
>about 10%. Relays normally actuate starting at about half their rated 
>voltage, so a constant 10% drop to the coil should be insignificant.
>
>Windy
>
>
>
>>Drake
>>
>>  Measure the coil ohms of the relay you want to power
>>and I can give you a current limiter.
>>
>>
>>Make the wind fun!
>>Victor Creazzi
>>Aerofire Windpower
>
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