Fault Detected in Synchronous Motor Excerpt from paper “Fault Detection In Components Of Synchronous Motors Through Online Partial Discharge Measurements” Company: Petrobras, Brazil Machine Description: Synchronous Gas Compressor Motor, 3 MW, 13.8 kV, 4 salient poles Fault Detection in Synchronous Motor Given the importance and operation time of the machine, in 2015 it was decided to install an online PD monitoring system. The Iris Power partial discharge severity tables are publicly shared (which now contain over 450,000 measurements) which can be used as a first comparative evaluation with similar machines, in case there is no PD measurement history available. This machine fell in this category, because no previous PD measurement was ever made. Comparing the values with this database, it

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