What is Motor Circuit Analysis?

Motor Circuit Analysis (MCA) is a de-energized test method used to assess the condition of electric motors. It involves applying a series of low-voltage AC and DC signals to the motor windings and measuring the resulting current and voltage responses. These measurements are then used to identify potential faults such as winding insulation weakness, rotor defects, and connection problems. MCA is commonly used in predictive maintenance programs to detect motor problems early, allowing for proactive repairs and preventing costly downtime.