IEEE 117 2016
$30.33
IEEE Standard Test Procedure for Thermal Evaluation of Systems of Insulating Materials for Random-Wound AC Electric Machinery
| Published By | Publication Date | Number of Pages |
| IEEE | 2016 | 34 |
Revision Standard – Active. The standard test procedure for the thermal evaluation and qualification of electrical insulation systems (EISs) for random-wound ac electric machinery, where thermal degradation is the dominating aging factor, is described. The relative thermal performance of a candidate EIS is compared to that of a reference EIS. Insulation systems for such machinery with input voltage of up to 600 V at 50/60 Hz are described in this standard. A statistical method for establishing a relative life-temperature relationship for an insulation system is also described. To have any significance, the reference insulation system must be supported with adequate field service data. Evaluation of insulation systems for use in air-cooled, random-wound ac electric machinery with usual service conditions is this procedures intent. This procedure, on its own, does not cover insulation systems such as exposure to conducting contaminates, radiation, inverter applications, or operation in oils, refrigerants, or other media that potentially degrades insulating materials.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std 117™-2015 Front cover |
| 2 | Title page |
| 4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 7 | Participants |
| 8 | Introduction |
| 9 | Contents |
| 10 | IMPORTANT NOTICE 1. Overview 1.1 Scope 1.2 Purpose |
| 11 | 1.3 General conditions 1.4 Methods of evaluation 2. Normative references |
| 12 | 3. Definitions, abbreviations, and acronyms 3.1 Definitions 3.2 Abbreviations and acronyms 4. History 4.1 Background information |
| 13 | 4.2 Methods of evaluation |
| 14 | 5. Motorettes 5.1 Insulation test specimens |
| 18 | 5.2 Test exposures for motorette testing |
| 22 | 5.3 Voltage checks for motorette testing |
| 23 | 5.4 Failure criteria for motorette testing 6. Motors 6.1 Test procedure for motors |
| 24 | 6.2 Motor models |
| 26 | 6.3 Test exposures for motor testing |
| 28 | 6.4 Operating cycle sequence testing |
| 29 | 7. Analysis of data 7.1 Data 7.2 Analysis 7.3 Comparison 7.4 Extrapolation 7.5 Nonlinear or dissimilar curves |
| 30 | Annex A (informative) Thermal-class definitions |
| 32 | Annex B (informative) Bibliography |
| 34 | Back cover |
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