HIGH VOLTAGE SURGE MEASUREMENTS ON STRANDED COPPER CONDUCTOR AND ON MAGNETIC TAPE WRAPPED STRANDED COPPER CONDUCTOR,
Abstract
Tests were conducted to determine if a magnetic tape wrapped conductor will attenuate high vol tge surges, such as produced by lightning. Tests were made on a high voltage test line. Surge crest voltags on test conductors were from 270 kilovolts up to 900 kilovolts. Surges were applied to a single standard No. 2 seven strand copper conductor line 2617 feet long and surge voltage oscillograms were taken simul taneously at or near the surge generators and near the center of the test line, and at or near the surge generator and at the end of the test line. After these tests were completed the No. 2 copper conductor was removed and replaced with the magnetic tape wrapped No. 2, seven strand copper conductor. It was found that the positive polarity crest surge voltage was reduced at end of test line by the plain copper line from 81 to 88 percent of its sending end value depending on the surge voltage magnitude. With the magnetic tape wrapped conductor the positive polarity crest surge voltage was reduced at end of test line from 70 to 73 percent of its sending end value depending on the magnitude of the surge voltage. Negative polarity surges were reduced to a lesser extent. These results indicate that the overall attenuation constant is approximately two times as great, at high surge voltages, for the magnetic tape wrapped conductor as it is for the plain copper conductor. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 08, 1963
- Accession Number
- AD0417379
Entities
People
- H.m. Smith
- W.e. Pakala
Organizations
- Westinghouse Electric Corporation