Ground Level Electric Fields and Ion Currents on the Celilo-Sylmar 400 kV DC Intertie During Fair Weather

1 March 1978

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems

Vol. PAS-97 (2) , 370-378
https://doi.org/10.1109/tpas.1978.354494

Abstract

The electric fields, ion currents, and charge densities at ground level under a HVdc transmission line are described and compared with ambient levels. Measurements of field and current density under the ±400 kV Celilo-Sylmar dc Intertie made during fair weather low wind conditions are described and the results are compared with values calculated from an idealized model. Deviations of the measurements from the theoretical values are attributed to the effects of wind on ion movement and the different characteristics of positive and negative corona. A predominance of the space charge generated at the negative conductor is observed.

Keywords

This publication has 4 references indexed in Scilit:

Field measurements and calculations of electrostatic effects of overhead transmission lines
IEEE Transactions on Power Apparatus and Systems, 1976
Analysis of Corona Losses on DC Transmission Lines Part II - Bipolar Lines
IEEE Transactions on Power Apparatus and Systems, 1969
Analysis of Corona Losses on DC Transmission Lines: I - Unipolar Lines
IEEE Transactions on Power Apparatus and Systems, 1969
Artificial modification of atmospheric space charge
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