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ANSI/IEEE standard for surge arresters for alternating current power circuits

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ISBN/ISSN 9781504402668
Broad Subject Electrical & electronic engineering
General - Engineering & Technology
Subject Lightning-arresters - Standards
Electric circuits - Alternating current - Standards
Summary This document supersedes IEEE Std 28-1972 (ANSI C62.1-1971) and revises many portions ofthe previous edition. Three new significant design tests have been added to determine:(1) The highest 1.2 x 50 standard impulse which the surge arrester will allow withoutsparkover(2) The effect of external contamination on sparkover(3) Surge arrester disconnector characteristics. Additional substantive changes include:(1) New definition of prorated section(2) Revision of Table 1 to include a 25 kV distribution surge arrester and special ratings for rotatingmachine protection(3) Increase in maximum rate-of-rise for front-of-wave sparkover test(4) Expanded range of currents in the discharge voltage test(5) Reduced high current test for station surge arresters to 65 kA(6) Expanded Table 4 to include test values for 550 kV and 800 kV system surge arresters(7) General revision of pressure-relief test.
Language English
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