IEEE 1107-1996
IEEE Recommended Practice for Thermal Evaluation of Sealed Insulation Systems for AC Electric Machinery Employing Random-Wound Stator Coils
standard by IEEE , 10/11/1996
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About This Item
Full Description
Scope
This recommended practice outlines a test procedure for comparing expected life, at rated temperature, of two or more sealed insulation systems. The procedure is limited to insulation systems for ac electric machines using random-would stator coils. It is the intent of this procedure to evaluate insulation systems for use with air cooling under severe environmental conditions where the insulation is exposed to conducting contaminants. It does not cover special requirements such as those for machines enclosed in gas atmospheres, subjected to strong chemicals, or to submersion in liquids. The procedure includes instructions for the following: (b)Testing candidate systems in comparison with known systems having a proven record of service experience (b)Interpretation of the results
Purpose
The purpose of this procedure is to classify sealed insulation systems of machinery used in severe environmental conditions, within the scope of this recommended practice, with respect to their temperature limits, by test rather than by chemical composition of the materials of the system. Data from such tests may be used to establish the temperature classification of new insulation systems before they are service proven, by comparison of expected life, at rated temperature, of two or more sealed insulation systems. The procedure is limited to insulation systems for ac electric machines incorporating random-wound stator coils. Service-proven sealed systems being used for comparison must also be tested according to this test procedure.
Abstract
New IEEE Standard - Inactive-Withdrawn.
A test procedure for comparing expected life, at rated temperature, of two or more sealed insulation systems is outlined. The procedure is limited to insulation systems for ac electric machines using random-wound stator coils. It is the intent of this procedure to evaluate insulation systems for use with air cooling under severe environmental conditions where the insulation is exposed to conducting contaminants. It does not cover special requirements such as those for machines enclosed in gas atmospheres, subjected to strong chemicals, or to submersion in liquids.
