motor controls

Discussion in 'The Projects Forum' started by alfred payne, Jan 14, 2009.

  1. alfred payne

    Thread Starter New Member

    Dec 16, 2008
    3
    0
    i have a 3 phase 400 volt motor rewound. full load amps are 219,motor is cpnnected in star delta.when the motor stared up my amprobe recorded 11amps within 15 seconds the motor motor was on fire
     
  2. eblc1388

    Senior Member

    Nov 28, 2008
    1,542
    102
    Sorry to hear that.

    Maybe better luck next time after another re-wound.
     
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Sounds like both the motor and the Amprobe were faulty. It only read 11 amps?

    If your connections were sound and to the correct terminals, the rewind must have been faulty. Was this the initial start after the service?
     
  4. alfred payne

    Thread Starter New Member

    Dec 16, 2008
    3
    0
    all connection were sound and correct for this motor . how doesa motor 175 hp burn in 15 second. none of the overloads trip
     
  5. Skeebopstop

    Active Member

    Jan 9, 2009
    358
    3
    Where was the ammeter? You sure the rewind was with appropriate gauge cabling and enough parallel windings to carry the currents you expected and were fused for?

    My guess would be they generally do a winding with multiple wires in parallel? If so perhaps one was connected and not the other 2 or 3?
     
Loading...