DocumentCode
1159776
Title
Multi-Frequency Surge Withstand Capability Tests for Protective Relays
Author
Vlah, Z.J. ; Harvey, S.M.
Author_Institution
Ontario Hydro Research Division
Issue
3
fYear
1981
fDate
3/1/1981 12:00:00 AM
Firstpage
1065
Lastpage
1071
Abstract
The reliability of solid state protective relays in the hostile electromagnetic environment of high-voltage switchyards and substations has been improved by the use of surge withstand capability (SWC) tests. Ontario Hydro relay specifications call for a SWC test with a surge test wave having frequency, amplitude, and source impedance as variable and interdependent parameters. The need for a multi-frequency SWC test with a frequency range of 0.1 to 2 MHz is confirmed by field surveys of surge characteristics, data from actual SWC tests, and laboratory investigations of SWC frequency dependence. A simple, moderately-priced SWC tester capable of generating accurately defined test waves within the defined range of test wave parameters is described
Keywords
Frequency; Power system protection; Power system relaying; Protective relaying; Relays; Solid state circuits; Substation protection; Surge protection; System testing; Wiring;
fLanguage
English
Journal_Title
Power Apparatus and Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9510
Type
jour
DOI
10.1109/TPAS.1981.316572
Filename
4110700
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