Abstract
The similarity comparison method, developed here in a general form, makes it possible to calculate the parameters of physical models and to establish predetermination formulae of the variables for similar systems. The method is applied to the study of the corona phenomenon on practical unipolar and bipolar HVDC transmission lines. The new similarity laws, presented here, are derived from the equations of non-dimensional groups, known as similarity criteria, which include the quantities describing the system and the phenomenon. Detailed results on the influence of the line parameters on the corona loss characteristics of monopolar, homopolar and bipolar lines are given.
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