Motors & rewinding services

AC/DC motors, rewinding, VFD compatibility, bearing failures, and insulation testing.

Motor types

  • Induction
    Squirrel cage, wound rotor, single/three-phase
  • Synchronous
    PM, reluctance, excitation systems, power factor control
  • DC
    Shunt, series, compound, brush/brushless, armature/field
  • Specialty
    Servo, stepper, linear, torque motors, high-speed spindles

Common failures

  • Bearings
    Overheating, vibration, lubrication, shaft misalignment
  • Windings
    Insulation breakdown, overheating, phase imbalance, shorts
  • Mechanical
    Shaft wear, coupling damage, rotor bar cracks
  • Electrical
    Terminal connections, cable sizing, starter/contactor issues

Rewinding & testing

  • Assessment
    Insulation resistance, core loss, winding resistance
  • Rewinding
    Strip, insulate, wind, impregnate, bake, reassemble
  • VFD-rated
    Inverter-duty insulation, bearing currents, dv/dt protection
  • Load testing
    No-load/full-load tests, efficiency, temperature rise

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