About this document
Rotor Bar Crack Analysis and Resolution by Joel Parra Zambrano is a document available to read on EtoBox.
1. Vibration analysis of a 180 kW cooler fan motor detected 1x harmonics and pole pass frequency sidebands, indicating a suspected rotor bar crack which was confirmed by motor current signature analysis that found a 23 dB difference, signifying a severe rotor fault. 2. Inspection of the rotor found cracks, so the motor was replaced. 3. After replacing the motor, vibration levels decreased and motor current signature analysis found a 54 dB difference, indicating the new motor
- Author
- Joel Parra Zambrano
- Language
- EN