dc motor

Discussion in 'The Projects Forum' started by modeltruckshop, Nov 21, 2011.

  1. modeltruckshop

    Thread Starter New Member

    Nov 21, 2011
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    0
    I have 1.9 hp dc hoist motor that I am using a converter to ac to dc can anyone tell me what the dc motor amps will pull, so I can get a converter to run it.
     
  2. praondevou

    AAC Fanatic!

    Jul 9, 2011
    2,936
    488
    That's about 1.42kW. If the rated motor voltage is known you can calculate the current.
    How do you know it's 1.9HP? Is there a plate on it with more informations?
     
  3. wayneh

    Expert

    Sep 9, 2010
    12,087
    3,027
    One HP is something like 750 watts, so you need 1500 watts plus a safety margin of 20% or more, or 1800 watts. When you include some inefficiency in the conversion, you're getting up to some pretty serious wattage. If your mains are 120v, you'll need a 20A circuit, not the usual 15A residential circuit. You didn't mention how you plan to go from AC to DC. It's going to be pricey with that much power.
     
  4. modeltruckshop

    Thread Starter New Member

    Nov 21, 2011
    2
    0
    I was going to use a converter I found a 100 amp dc conerter it is about 200.00. Am I going in the right direction
     
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