Abstract
Corona and electric field effects are important
aspects to be considered in the design of HVDC
transmission lines. The results of an extensive
IREQ-EPRI study on the corona performance characteristics
of transmission lines in the range of ±600 kV
to ± 1200 kV are presented in this paper. The longterm
corona performance characteristics of three
conductor bundles, chosen for use in this voltage
range, are discussed. Subjective studies of RI and
psychoacoustic studies of AN, required to establish
proper design criteria for these two parameters, are
also described. Finally, some investigations on the
measurement of electric field and ion current distributions
under DC lines, as well as of electric
induction effects on objects and people located under
the lines, are reported.
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