More Facts about Winding Faults

  • Usually start in the end turns of windings
    • Greatest stresses
    • Insulation is weakest
  • They start small and escalate over time
  • They always end in failure
  • Contributing factors to failure
    • Overloading
    • Frequent start/stop cycling
    • Vibration
    • Contamination
    • Age, Heat, & Motor Drives