Dump load resistors - buy 12V or 24V?

Discussion in 'Dump Loads' started by bobgoodbuys, Feb 23, 2011.

  1. bobgoodbuys

    bobgoodbuys WindyNation Engineer

    What resistors should I hook up to my system? 12 or 24 Volt?
    I have a 600 watt DC generator; 600 watt grid tie inverters with a built in dump load controller; no batteries.
    I will be hooking up directly to the grid. Input to the inverters is set at 10.8 - 30V DC.
    Only motor specs that I have is: 150 Volts;14 Amps; 2000rpm
     
  2. windyguru

    windyguru WindyNation Expert

    Use two of the 12 volt dump loads. Wire them in parallel. You can look at the product description page of the dump loads to see how to wire them in parallel or you can send me a private message.
     
  3. bobgoodbuys

    bobgoodbuys WindyNation Engineer

    Thank you for your help. One more question, however; Sense my 600 watt inverter is actually (2) 300 watt inverters "stacked", and I was told that I would have to have a dump load on each one, should I hook up (2) resisters to each inverter for a total of (4) for the system or just (1) resistor to each?
    Bob
     
  4. windyguru

    windyguru WindyNation Expert

    One resistor to each inverter.
     
  5. Bootstrap

    Bootstrap WindyNation Engineer

    sounds like you have a system that is identical to mine. I ordered 1 24v 300 watt resistor for each of my inverters. Until they come in, I was thinking of hooking the dump load to a battery that wont hold a charge. From what I understand, that would be a suitable temporary situation.
     
  6. Bootstrap

    Bootstrap WindyNation Engineer

    I have a 1200 watt 28v-55v powerjack inverter. What would happen if I ran the dump load from the 2 sun-300g inverters to the powerjack inputs? Would that work?
     

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