自動オシログラフ活用による送電線路定数実測手法の提案

概要

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The author devised new method for measurement of the transmission line constants of high precision with the automatic oscillograph. This paper is proposal of new method for measurement of the transmission line constants. The author utilized that the inherent eigenvector matrixs of transmission line had an equal relation with four-terminal constants eigenvector matrixs of transmission line. And the author calculated four-terminal constants of transmission line from the data (voltage-current data of the automatic oscillograph) of six cases of transmission line system faults and devised the method for measurement for transmission line constants from analysis of the four-terminal constants of transmission line next. Furthermore, the author inspected this new method in the system fault simulations of the EMTP transmission line system model. It was shown that the result is the measurement method of high accuracy. From now on, the author advances the measurement of the transmission line constants from actual system faults data of the transmission line and its periphery with the cooperation power system companies.