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IEEE 95 2002

$53.08

IEEE Recommended Practice for Insulation Testing of AC Electric Machinery (2300 V and Above) With High Direct Voltage

Published By Publication Date Number of Pages
IEEE 2002 57
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Revision Standard – Active. This recommended practice provides information on the use of high direct voltage forproof tests and for periodic diagnostic tests on the groundwall insulation of stator (armature) wind-ings in ac electric machines.

PDF Catalog

PDF Pages PDF Title
2 Title Page
4 Introduction
Participants
7 CONTENTS
10 1. Overview
1.1 Scope
1.2 Purpose
1.3 Application and limitations
12 2. References
13 3. Definitions
15 4. Test preparations
4.1 Safety precautions required for high direct-voltage tests
4.2 Influencing factors
17 4.3 Gas-cooled machines
4.4 Liquid-cooled machines
4.5 Isolation of the winding from cables and auxiliary equipment
18 4.6 Sectionalizing the winding
5. Test equipment and connections
5.1 High direct-voltage test equipment
19 5.2 Discharge and grounding provisions
20 5.3 High-voltage test connection to the winding
21 5.4 Test connection to ground
6. Test procedure: proof tests
22 6.1 Test voltage for acceptance proof testing
6.2 Test voltage for maintenance proof testing
6.3 Voltage application
6.4 Discharging and grounding
23 6.5 Test results
6.6 Insulation failure
7. Test procedure: controlled overvoltage test
7.1 Test method
7.2 Test setup
24 7.3 Measured current
7.4 Test voltage for controlled overvoltage testing
7.5 Initial voltage level
25 7.6 Voltage increments
27 7.7 Discharging and grounding
7.8 Test results
35 7.9 Use of controlled overvoltage tests
8. Fault location
36 9. Suggested test record
38 Annex A
(informative)
Test procedures
55 Annex B
(informative)
Bibliography
IEEE 95 2002
$53.08