[ausev] Troubleshooting electrical drain issues

[Rob Hirschfeld]

Mike,

I've got the SD350-D (http://datasheet.astrodyne.com/SD350.pdf) and it's rated at 350W and 30 Amps.  

I'll put together a power draw list and see if I exceed that.

Rob

>
>Rob,
>Sounds like you are actually just overloading your Astrodyne unit.  The 
>biggest Astrodyne that I saw listed was 200w, so sounds like you need 
>more.  Take look at 
>http://www.trcelectronics.com/Meanwell/sd-350d-12.shtml for a meanwell 350 
>watt unit.  They will sell individual units for $147 plus shipping, so it 
>might be your best bet.
>
>Mike
>
>Certified heathen and reformed pacifist
>
>http://www.p1800s.com
>
>On Sun, 24 Jun 2007, Rob Hirschfeld wrote:
>
>> All,
>>
>> I could use some advice on tracking down a power drain.  My various controls 
>(fans, vacuum pump, relays, etc) are drawing so much power from the Astrodyne 
>DC-DC converter that it goes into "power overload shutdown." The lack of DC-DC 
>over draws my poor auxiliary battery which turns off the contactors when I 
>brake!
>>
>> If I take the pump and fans out of the circuit, the converts runs fine.  If 
>I put them back in then it immediately shuts off.
>>
>> The relays, contactors, fans, and pump are basically wired in parallel.
>>
>> Does anyone have a suggestion on how I could track down my power loads per 
>circuit.  I have an ammeter, but it only goes up to 200 millis.
>>
>> Note: I was able to demonstrate that the DC-DC converter is working fine.  
>It recovers from overload after a power cycle.
>>
>> Rob
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