Konferenz,

THE TEST AND INVESTIGATION RESULTS ON NATURALLY POLLUTED INSULATORS AND THEIR APPLICATION TO INSULATION DESIGN OF POWER svs:rEM IN THE POLLUTED AREAS

, und .
(1982)

Zusammenfassung

From laboratory test on a number of naturally polluted insulator strings, the characteristic curves and regression equation of pollution flashover voltage versus equivalent salt deposit density (ESDD) and leakage current have been determined. The safety factor presented by the paper may be used for the selection of insulators for polluted areas. The values of critical warning current which may be used for assessing the behaviour of power system insulation are based on the analysis of the existing problems in using "ESDD" in the insulation design for polluted areas and on the relationship between pollution flashover voltage and leakage current.

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