This document describes the recommended procedure for measuring insulation resis-tance 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. Con-tained within this document is the general theory of insulation resistance (IR) and polarization index (P.I.), as well as factors ...
IEEE Std 43-2000 history
2014IEEE Std 43-2013 IEEE Recommended Practice for Testing Insulation Resistance of Electric Machinery
2000IEEE Std 43-2000 IEEE Recommended Practice for Testing Insulation Resistance of Rotating Machinery
1974IEEE 43-1974 Recommended practice for testing insulation resistance of rotating machinery