PROJECT TITLE :

Failure Analysis of Induction Motors: Magnetic Wedges in Compression Stations

ABSTRACT :

This article presents the failure analysis and field measurements of 5 seven,500-hp induction motors driving reciprocating compressors for a natural gas compression station. The failure analysis examined fan design, vibration, motor-operating temperature, compressor loading profile, range of motor starts, and ambient temperature. A comparison between direct on-line motor beginning and soft beginning using an adjustable speed drive (ASD) and also the impact on motor performance are presented. The settings and historical knowledge gathered from the microprocessor protection relay for the motors are also covered and mentioned.