Loss formulas made easy [includes discussion]

Significant progress in the analysis of transmission losses has been made in the past several years by the development of transmission loss formulas which express losses in terms of plant and interconnection loadings. These loss formulas have been of great value in such problems as economic scheduling of generation interconnected system billing, and system planning. In 1951 a new method of deriving a transmission loss formula was described, which required considerably less network analyzer measurements and arithmetic calculations. This paper presents further simplifications and improvements in the calculation of transmission loss formulas, and is intended to provide a simple exposition of the calculating procedure involved in calculating a loss formula. This paper will also discuss the application of a small automatic digital computer to the calculation of a loss formula. Use of this computer has resulted in substantially reducing the time required to calculate a loss formula.

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