System, apparatuses, methods, and computer program products for electric motor testing and analysis

A system for testing an electric motor, the system comprising:

• means for measuring a winding resistance of the electric motor;
• means for measuring a temperature of the windings of the electric motor;
• means for receiving as a first input data representing the measured winding resistance;
• means for receiving as a second input data representing the measured temperature of the windings;
• means for storing the first input data;
• means for storing the second input data;
• means for storing a previously measured temperature value, the previously measured temperature value being obtained at a time of taking a previous measurement of the winding resistance of the electric motor;
• means for automatically correcting the data representative of the temperature of the windings based on the previously measured temperature value;
• means for determining a corrected winding resistance value of the electric motor windings, the corrected winding resistance value being determined based on the corrected temperature data;
• means for storing the determined corrected winding resistance value of the electric motor windings;
• means for electronically displaying on a resistance versus time graph the determined corrected winding resistance value of the electric motor windings;
• and
• means for determining when to refurbish or replace the electric motor based on data from the resistance versus time graph.

A computer program product comprised of a non-transitory computer-readable storage medium having stored thereon software instructions that, when executed by a processor, cause the processor to perform operations comprising:

• receiving data representative of an insulation winding resistance measurement of an electric motor under test;
• receiving data representative of a temperature measurement of the windings taken at or around the time of the insulation winding resistance measurement;
• automatically normalizing the temperature to a common temperature;
• determining a normalized insulation resistance value of the electric motor windings using the normalized temperature;
• automatically storing the normalized insulation resistance value;
• plotting and displaying the determined normalized insulation resistance value on a graph, the graph including at least one previously determined normalized insulation resistance value;
• and
• estimating, based on one or more data points corresponding to the normalized insulation resistance values plotted on the graph, an amount of operational time of the electric motor until failure or unsatisfactory operation thereof.