Rotating machines — Pros and cons of monitoring devices

Abstract

Rotating machines such as motors, generators, turbines, and compressors utilize many different types of monitoring devices. These devices are critical for the long term reliable operation of rotating machines. Some measuring devices will add significant knowledge of the performance and therefore add value and reliability, while others add little to no value but will add substantial cost. The pros and cons of using each of the many different types of devices and what can be determined from the measurement need to be evaluated before installation. Simply installing the device may not add the expected reliability. This paper will discuss parameters of monitoring, setting of control limits, and the application of various monitoring devices.