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This paper presents a real case study which includes measurement and computation of noise levels on telephone cables due to harmonics in nearby power lines. The objective of the study is to find the most efficient and economic mitigation measures to reduce the noise levels. A circuit model has been built and induced noise levels computed. Computation results are compared with the measurement data...
Summary form only given. The effects of corona space charge arising from HVDC transmission lines are much more significant than that in AC transmission lines due to the extended distribution of the DC space charge. The space charge greatly influences the audible noise, radio interference, and the electric field strength on the ground and in space, which are very important environmental considerations...
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