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Rotor Bar Testing – Temperature Indicating Paints

Test Overview

A thorough visual inspection process may include the use of temperature indicating paints. Testing steps include:

  • Rotor is removed from stator
  • Temperature indicating paint(s) are applied to the rotor surface
  • Motor is reassembled and run under load
  • Motor is once again disassembled and further inspected for change in color to localized areas


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