Measured Electrical Constants of 270- Mile 154-Kv Transmission Line

Results of measurements are presented of fundamental electrical constants of a 270-mile 154-ky transmission line. Comparisons are made between values obtained from test and those obtained from circuit dimensions and computations, thus providing a check on some conventional methods of determining basic line impedance and admittance units. Included are unit resistance, inductive reactance, and capacitive susceptance together with ABCD constants and charactertistic impedance of positive-phase sequence, zero-phase sequence, and one-conductor-and-ground long-line networks.