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IEEE 1799-2022

IEEE 1799-2022

$40.63

IEEE Recommended Practice for Quality Control Testing of External Discharges on Stator Coils, Bars, and Windings

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IEEE 2022
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Revision Standard – Active. The procedure for quality control testing of external discharges on stator coils, bars, and windings of large air-cooled ac electric machines is described in this recommended practice.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std 1799-2022 Front Cover
2 Title page
4 Important Notices and Disclaimers Concerning IEEE Standards Documents
8 Participants
10 Introduction
11 Contents
12 1. Overview
1.1 Scope
13 1.2 Purpose
1.3 Word usage
2. Normative references
14 3. Definitions, acronyms, and abbreviations
3.1 Definitions
16 3.2 Acronyms and abbreviations
4. Test preparation and safety
17 5. Test equipment and connections
18 5.1 Sensitivity of the corona imaging instruments
19 6. Quality control test of external discharges with corona-imaging instrument or blackout test
20 6.1 Factory test on coils and bars
6.1.1 Sample size
6.1.1.1 General
6.1.1.2 Sample coils for global VPI stator windings
21 6.1.2 Test methods
6.1.3 Test voltage on individual bars and coils
22 6.1.4 Test procedure for individual bars and coils
6.1.5 Acceptance criteria
23 6.1.6 Remedial actions and retest
6.2 Stator model test
6.2.1 Sample size
6.2.2 Test methods
24 6.2.3 Test voltage
25 6.2.4 Test procedure for a group of bars or coils in a stator model
6.2.4.1 Procedure for determining DIV and DEV
6.2.5 Acceptance criteria
26 6.2.6 Remedial actions and retest
27 6.3 Test on fully assembled stator windings
28 6.3.1 Test setup
29 6.3.1.1 Precaution for blackout test on stators
6.3.2 Test methods
6.3.3 Test voltage
30 6.3.4 Test procedure on fully assembled stator windings
6.3.4.1 Test with corona-imaging Instrument
32 6.3.4.2 Test using blackout method
33 6.3.4.3 Procedure for determining DIV and DEV
6.3.5 Acceptance criteria
6.3.6 Remedial action
7. Data records
34 7.1 How to fill the data logging tables
7.1.1 Bar or coil factory tests
7.1.2 Fully assembled stator
39 Annex A (informative) Theory of optical emissions from external discharges
42 Annex B (informative) Variability of discharge inception and extinction voltages
43 Annex C (informative) Example of determination of the maximum voltage for a specific winding diagram
46 Annex D (informative) Example of correction factor to apply to the test voltage of a stator model and global VPI stator for a machine which will operate at altitudes of more than 1000 m
48 Annex E (informative) Example of operating-voltage table and bar/coil identification table used during test
50 Annex F (informative) Bibliography
52 Back Cover

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IEEE 1799-2022
$40.63