Dynamic Ratings Inc. N53 W24794 S. Corporate Circle, Suite A Sussex, WI 53089 Tel: +1 (262) 746-1230 Fax: +1 (262) 746-1232 www.dynamicratings.com Monitoring, Control and Communications for Electrical Power Apparatus On-line, Partial Discharge Noise Cancellation, Eliminates False Alarms & 13.8kV Motor Diagnosis Costs ? CASE STUDY Challenge A customer uses a 13.8kV motor to drive a large critical compressor in a processing plant. The customer installed a competitor’s continuous Partial Discharge (PD) monitor. The devices’ limited capability only provided maximum magnitude data (shown left) of very high magnitudes in the 1500 to 2000 mV range. The system was in a constant alarm state. Plots, show high levels of floating type discharges that were c

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