Experimental search for consolidated primary parameters of a three-conductor power transmission line

Finding the outcomes of transmitting electricity through a power line from the source to a consumer requires accurate information on the parameters of this line. Finding these parameters for operating lines with a minimum error is a resource-intensive problem. But if a researcher is interested only in voltages and currents at the end and at the beginning of a homogeneous section of a three-conductor transmission line, then it is sufficient to use the theory of multipoles, in particular, the theory of eight-terminal circuits. The article presents a method for finding the longitudinal and transverse parameters of a transmission line experimentally. The study employs in-kind experimentation on an appropriate fleet of electrical devices, as well as indirect measurement of the desired values. The experimental has a six-step design; obtained data help quantify the primary parameters on a selected PTL section to further correlate the inputs and outputs for the section. Besides, the method can be used for analysis of active eight-terminal circuits of a similar design. This means that the proposed technique enables comprehensive analysis of a studied facility. The article presents the diagram of the pilot plant, describes the experiment design, and presents error calculations based on the obtained experimental output.