scope:

This guide describes off-line inspections and diagnostic tests which are performed in the field on rotating electrical equipment with voltage ratings of 4000 V or greater. The guide is intended to address large industrial and utility sized machinery. These evaluation procedures, which are in common use on large rotating machines, have been found prudent in assuring high equipment reliability at low overall maintenance cost. The procedures are presented in categories depending on the subsystem of the machine being examined.

Purpose

This guide is intended to assist maintenance personnel in determining what diagnostic tests should be planned for their rotating electrical machines, what should be expected of the tests, and in general, how to perform the tests. This guide brings together, into one document, many commonly-performed appropriate tests for electrical machines, and references other individual standards so more detailed information may be obtained