High voltage motors

High Voltage Motors

Backed by our vast facilities in Montreal and Quebec, our specialists are fully equipped to perform all kinds of repairs and maintenance work. To meet the highest repair standards and the particular needs of each customer, our management teams prepare a specific repair program for each unit along with exacting control measures.

MOTOR UNIT AND GENERATOR TYPES

(All ratings, all speeds, voltages up to 13,000 VAC)

  • Smooth pole synchronous machines (3,600 rpm turbogenerator)
  • Salient pole synchronous machines (high and low speeds, 1,800 RPM or less)
    • Rotors with built-in edge-wound pole coils
    • Rotors with built-in folded coils
    • Rotors with removable folded coil pole horns
    • Rotors with removable poles
  • oWound rotor asynchronous machines
  • Direct current machines

SERVICES (ON-SITE)

  • Predictive and preventive electrical and mechanical maintenance program

  • Cleaning of various coils

  • Advanced non-destructive unit-specific testing (re-absorption current, capacity, power factor, partial discharge, etc.)

  • On-site coil repair (if possible) 

    • Coil change

    • Elimination of defective coils

  • Inspection and replacement of babbitt bearings

  • Full boroscopic inspection of motors, coils and radiators

  • Full rewinding with adapted coils (if possible)

  • Installation and start-up support

SERVICES (IN SHOP)

  • Full repair

  • Voltage augmentation study

  • Insulation system improvement (if possible)

  • Full adapted rewinding (stator, rotor, exciter, etc.)

  • Babbitt bearing manufacturing and discharge current protection

  • Complete refurbishing of heat exchangers

  • Advanced non-destructive unit-specific testing (re-absorption current, capacity, power factor, partial discharge, etc.)

  • Modification of characteristics (power, voltage, frequency, speed, cooling, etc.)

  • Complete, detailed report with all measurements and photos

  • Dynamic testing of repaired units (if possible)