Effect of Dew and Raindrops against Electric Field of EHV Transmission Lines

Budi Utama, Asniar Aliyu



       Indonesia is an archipelagic country in Southeast Asia that has a tropical climate, with two distinct monsoon wet (raindrops) and dry seasons (pure air). The variable of the water content for the atmosphere of Indonesia's climate is not temperature or air pressure, but rainfall. Therefore, the air as a dielectric medium has been contained by water in form dew and rain drops. This paper described the effects of the dew and raindrops on : exposure of the electric field caused by extra high voltage (EHV) transmission lines, and the composite dielectric of its medium. The analytical method was conducted using electrostatic equation for calculation of the electric field as well as depiction of its exposure. The simulation model and calculation are made and executed by a computer as its simulator in which matlab was used. The result of the simulation showed that at certain zone of the lateral distance, the exposure of the electric field intensity has decreased meanwhile at the other zone has increased. 


Dew-Raindrops, Electric Field, Transmission lines, EHV (Extra High Voltage).

DOI: http://dx.doi.org/10.12928/telkomnika.v16i3.5408


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