
DRAFT RECOMMENDED PRACTICE FOR TESTING INSULATION RESISTANCE OF ROTATING MACHINERY
出版:Institute of Electrical & Electronics Engineers

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Gives a recommended method for measuring insulation resistance of armature and field windings in rotating machines rated 1hp, 750 W or more. It is applicable to synchronous machines, induction machines, direct-current machines, and sychronous condensers. Does not apply to fractional-horsepower machines. Also describes typical insulation resistance characteristics of rotating machine windings and how these characteristics indicate winding condition. It recommends acceptable values of insulation resistance for alternating-current and direct-current rotating machine windings.