High voltage insulator assemblage having specially-chosen series

Details High voltage insulator assemblage having specially-chosen series High voltage insulator assemblage having specially-chosen series

1982-06-03

1985-06-18

Askin, Laramie E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

174140R, 174140S, 174141R, H01B 1742

Patent

active

045244049

ABSTRACT:
The invention relates to an outdoor high voltage insulator, wherein the flashover due to the effect of external layers or deposits of pollution is prevented or at least shifted in the direction of higher degree of pollution. A resistance element (1) is connected in series with the insulator itself (2), with the leakage current prior to flashover producing a voltage drop over the resistance element (1). This voltage drop reduces the voltage on the insulator and prevents or retards flashover.

REFERENCES:
patent: 1449694 (1923-03-01), Peek, Jr.
patent: 2776332 (1957-01-01), Von Cron
patent: 4267403 (1981-05-01), Pargamin
Verma, M. P. et al., CIGRE Report 33-09, "The Criterion for Pollution Flashover and Its Application to Insulator Dimensioning and Control", International Conference on Large High Voltage Electric Systems, 1978 Session, Aug. 30 to Sep. 7, 1978, 12 pages.
Verma, M. P., "Mechanism of A.C. Flashover on Polluted Insulators", Feb. 26-27, 1981, 5 pages.

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