Repair service

MEL is one of the largest electric motor repair companies in Québec, whether on-site or in our workshops.
Thanks to our highly qualified personnel and our four strategically located motor repair workshops across Québec, we are able to carry out repairs on your electric motors according to their specific application requirements, while meeting EASA and IEEE standards.
Our specialists, equipped with lifting capacity up to 40 tons, machining lathes up to 32 feet in length and 96 inches in diameter, a dynamometer capable of testing an 800 HP motor at full load, a 14 ft x 14 ft VPI system, and many other tools, will do everything possible to provide you with exceptional service. They will exceed your expectations in motor refurbishment, from small fractional horsepower units to over 32,000 HP.
We also have the facilities, technical resources, and equipment required to refurbish small- and medium-power transformers ranging from 4 to 61 kV, with a maximum weight of 40 tons without dielectric fluid. We use a degassing system to significantly reduce refurbishment costs by reusing your existing oil.

Contact-us
  • On-site services

    • Diagnostics and troubleshooting
    • 24/7 emergency service
    • Installation and commissioning
    • Start-up support
    • Vibration analysis
    • Thermography
    • Insulation resistance measurement
    • Polarization index (PI) measurement
    • AC and DC dielectric strength testing
    • Winding resistance measurement
    • Phase and neutral reversal
    • Grounding resistance verification
    • Partial discharge coupler installation
    • Bearing and bushing inspection
    • Failure analysis
  • Stator repair and rewinding.

    • Low-, medium-, and high-voltage stator repair
    • Complete rewinding
    • Emergency repair
    • Stator connection repair
    • VPI winding (Vacuum Pressure Impregnation)
    • B-Stage winding
    • Verification of magnetic core compliance
    • Core restacking
    • Wedge tightness verification
    • Medium- and high-voltage winding repair
    • Bypass repair of damaged coils
    • Comprehensive electrical testing
  • Rotor repair and manufacturing.

    • Rotor and armature repair
    • Fabrication of pole coils
    • Complete refurbishment of wound rotors
    • Refurbishment of squirrel cage rotors
    • Replacement of rotor bars
    • Rotor core restacking
    • Turn-to-turn insulation verification
    • Pole drop testing
    • Impedance measurement
    • Rectifier bridge (diode) inspection
    • Pole tightness verification
    • Pole removal and installation
    • Slip ring repair
    • Rotor cable refurbishment
  • Mechanical services and machining

    • Mechanical repair of rotating equipment
    • Bearing replacement
    • Inspection and refurbishment of sleeve bearings (Babbitt)
    • Machining of bearing seats
    • Ceramic insulation of bearing seats
    • Metallizing of bearing seats
    • Shaft repair and machining
    • Shaft replacement
    • Repair of cracked frames
    • Soft foot correction
    • Dynamic balancing
    • Maintenance and repair of heat exchangers
    • Manufacturing and reverse engineering of replacement parts
  • Turbogenerators and hydroelectric generators

    • Specialized services for alternators and turbogenerators
    • Specialized electrical testing
    • 24/7 emergency service
    • Reliability monitoring and preventive maintenance programs
    • Diagnostics and failure analysis
    • Disassembly and reassembly of alternators and turbogenerators
    • Complete refurbishment of alternators (stator and rotor)
    • Refurbishment and manufacturing of pole coils
    • Medium- and high-voltage stator repair and rewinding
    • Excitation system repair
    • Slip ring refurbishment
    • Installation and commissioning
    • Shutdown support
  • Engineering and technical support

    • Failure diagnostics
    • Root cause analysis
    • Reverse engineering of windings
    • Winding conversion for VFD (inverter duty) applications
    • Maintenance recommendations
    • Technical support for maintenance teams
    • Development of customized solutions
    • Expertise in low-, medium-, and high-voltage rotating machines (AC and DC)