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  1. dontexplode

    Generator Winding Heating with solar panels

    Thanks itsmoked great insight
  2. dontexplode

    Generator Winding Heating with solar panels

    Thanks for your thoughts VE1BLL!
  3. dontexplode

    Generator Winding Heating with solar panels

    Thanks the resistance of the winding is not currently know, but it is a 12kV, 3.8MW unit. The resistance would probably be pretty low and would just drain the battery very quickly. what's an easy way to control the dc current without losing all the heat?
  4. dontexplode

    Generator Winding Heating with solar panels

    that's what I was afraid of.. just dissipating all the heat via the resistor. The other option is to install 48vdc rated heater tape and connect that to the dc load center and wrap those around the items you want to heat up...
  5. dontexplode

    Generator Winding Heating with solar panels

    So the current design is 1.8-2kW of solar panels, pv combiner box, FM80 charge controller, or Outback Radian if wanted it could be connected to grid at later date, Batteries, DC disconnect or small dc load center. Obviously this won't be permitted and ul listed. First thought is to put in a...
  6. dontexplode

    Generator Winding Heating with solar panels

    the generators are not allowed to run for the next few months. the space to put a humidifier is really tight, we don't have access to utility power. Thanks so much for your insight.
  7. dontexplode

    Generator Winding Heating with solar panels

    Have a site with four 3.5mw generators that are not accessible for various reasons. site visits and install are two hours every week. The intent is to hookup some solar panels and charge controllers to the windings of the generator to keep moisture out. Utility power is not available. The...
  8. dontexplode

    25kV isolated phase arrangement underground

    Proposed design is for an isolated phase arrangment consisting of 25kV cables with 3-500 kcmils and a #4/0 ground routed underground embedded in conduit. there is no ferrorous, or steel encircling only one phase, but rebar around the entire duct bank. The cables are shielded with a tape...
  9. dontexplode

    Outdoor Transformer location

    I am specifying/installing (4) 3MVA transformers that are to be located outside in the US in a hot/tropical climate (HI). It needs to be as close to the building as allowable and each other. I am looking for a guideline/standard on placing outdoor transformers. The NEC only mentions providing...

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