IEC 60034-18-1-2010 Rotating electrical machines - Part 18-1: Functional evaluation of insulation systems - General guidelines

Language: English, French
International Standard IEC 60034-18-1 has been prepared by IEC technical committee 2: rotating machinery.
This second edition cancels and replaces the first edition, published in 1992, and its amendment 1 published in 1996, and constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
– provides general guidelines for functional evaluation of different types of windings as before but beyond that for electrical evaluation of windings which are electrically stressed by converter-supply;
– is now focused on general guidelines with all technical details of procedures and qualification principles moved to the subsequent parts;
– details additional general aspects of functional evaluation, particularly the statistical procedure for comparison between reference and candidate insulation systems and the evaluation of minor component or manufacturing changes;
– contains a new acceptance test for verifying the expected production quality level of the insulation systems;
– restricts the classification of insulation systems as a result of the functional evaluation to thermal classification. Other kinds of classifications (classes) of insulation systems no longer exist.Scope
This part of IEC 60034 deals with the general guidelines for functional evaluation of electrical insulation systems, used or proposed to be used in rotating electrical machines within the scope of IEC 60034-1, in order to qualify them.