IEEE Standards Association
IEEE Project
P43 - IEEE Draft Recommended Practice for Testing Insulation Resistance of Electric Machinery
This document describes a recommended procedure for measuring insulation resistance of armature and field windings in rotating machines rated 1 hp, 750 W or greater. It applies to synchronous machines, induction machines, dc machines, and synchronous condensers. It does not apply to fractional-horsepower machines. The document also describes typical insulation resistance characteristics of rotating machine windings and how these characteristics indicate winding condition. It recommends minimum acceptable values of insulation resistance for ac and dc rotating machine windings.
- Status:
Sponsor: PE/EM - Electric Machinery 
Society: PE - IEEE Power and Energy Society
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