DocumentCode
1039758
Title
Alternating and Direct Voltage Endurance Studies on Mica Insulation for Electric Machinery
Author
Moses, Graham Lee
Author_Institution
Westinghouse Electric Corporation, East Pittsburgh, Pa.
Volume
70
Issue
1
fYear
1951
fDate
7/1/1951 12:00:00 AM
Firstpage
763
Lastpage
769
Abstract
A program studying voltage endurance of various mica insulations is reported. This includes dielectric breakdown data with both alternating and direct current on numerous similar samples. Effects of repetitive testing, prolonged a-c (60-cycle) stress and mechanical damage to mica insulation are reported. Detection of insulation faults is described and conclusions are drawn that d-c overpotential maintenance tests can be equally searching but less damaging than a-c overpotential tests for large high-voltage rotating machinery.
Keywords
Dielectric breakdown; Dielectrics and electrical insulation; Electric breakdown; Independent component analysis; Insulation testing; Machinery; Materials testing; Statistical analysis; Stress; Voltage;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Transactions of the
Publisher
ieee
ISSN
0096-3860
Type
jour
DOI
10.1109/T-AIEE.1951.5060474
Filename
5060474
Link To Document