Abstract
After defining briefly the problem of the selection of a proper high-voltage transmission conductor, the authors discuss the difficulties that caused the failure of their earlier attempts to measure corona losses at the Stanford University laboratory. The equipment used for the present investigation, as well as the methods of test and the procedure followed in the reduction of test data, are described. The corona loss is taken as a function of the crest value of the voltage in accord with the theory of Professor Ryan. Insulator losses in fair weather are found negligible. Errors existed in the authors' measurements of the losses, causing them to be high, but a correction is made by subtracting the ``error power'' from the gross power curves. The cable samples are briefly described. Complete tables of tabulated data are presented in Appendix A; and some idea of the consistency and reliability of the results may be obtained from these tables, and from the various curves.
Published Version
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