Title :
Some Impulse-Voltage Breakdown Tests on Oil-Treated Paper-Insulated Cables
Author :
Foust, C.M. ; Scott, J.A.
Author_Institution :
General engineering laboratory, General Electric Company, Schenectady, N. Y.
fDate :
7/1/1940 12:00:00 AM
Abstract :
Data are presented on impulse-voltage breakdown values obtained on oil-treated paper-insulated cables over the insulation thickness range from 0.187 inch to 0.600 inch. The average stress at breakdown approximates 1,600-1,700 volts per mil. High-density papers show some superiority over ordinary-density papers. Cathode-ray oscillograms of the testing wave (1¿×40 impulse wave¿positive polarity) before and at breakdown are included for a typical test.
Keywords :
Cable insulation; Circuits; Electric breakdown; Impulse testing; Oil filled cables; Oil insulation; Porcelain; Stress; Surges; Voltage;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1940.5058151
