Active PAR

P43

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 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. Other IEEE standards that include information on insulation resistance measurement are listed in Clause 2.

Sponsor Committee
PE/EM - Electric Machinery
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Status
Active PAR
PAR Approval
2022-09-21
Superseding
43-2013

Working Group Details

Society
IEEE Power and Energy Society
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Sponsor Committee
PE/EM - Electric Machinery
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No Active Projects
No Active Standards
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards
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