MOV Motor Repair and Testing

Schulz provides in-depth testing of both AC and DC MOV motors that includes requirements of NRC generic letter GL-89-10, such as:

  • Reduced voltage testing
  • Increased ambient temperature testing
  • Locked rotor testing
  • Speed/torque curves
  • Testing at 70, 80, 90, 100 and 110% of rated voltage
  • Data acquisition systems including ADAMS and ADAMS2
  • Class H winding insulation
  • Schulz provides fast turnaround times and will repair your MOV motors meeting industry needs and requirements.
MOV Motor Testing
MOV Motor Testing

Motor Testing Capabilities, Including MOVs

Schulz Electric Advantages

  • Schulz Developed MOV Motor MagRotor Re-Coating Process
    • Utilize SSPC Guidance for Rotor Prep
    • Recoat with RanvarB-5-346 or BT-7455 A
  • Principal Investigator -BWROG Topical Report TP-09-005, “Inspection of Motor Operated Valve (MOV) Limitorque® AC Motors with Magnesium Rotors”
    • Addresses Known Industry Generic Issue
    • In-Service Failure of MOV Motors
    • USNRC IN 1986-02, IN 2006-26 and IN 2008-20
    • Worked with GE and BWROG VTRG
  • Performed Testing for BWROG for Replacement Aluminum Rotor Motor Test Program

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