Locating Shorted Turns in a Wye-Connected Nine-Lead Motor

In this case scenario, the motor winding being tested is a nine-lead wye connection with shorted turns in phase A. The breakdown isn’t visible. It was operating on high voltage when it failed. First, check the rotor winding by turning the shaft, using an ohmmeter or limited current. Compare the high/low readings as described earlier. […]
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