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This paper presents a general approach to locate any type of fault on either a single-circuit or a double-circuit transmission line when only voltage sag data are available. The voltage measurements employed can be from one bus, two buses, or more buses, which are not restricted to those of the faulted section. It is assumed that the network data are available and the fault type is known. Quite encouraging...
This paper presents algorithms to locate faults on a double-circuit transmission line by utilizing sparse current measurements from one or two branches. The branch current is derived as an analytical function of the unknown fault location and fault resistance, and then the fault location can be obtained based on the measured branch currents. The zero-sequence mutual coupling between the two branches...
This paper presents a general method for pinpointing location of faults on a double-circuit transmission line by employing only voltage measurements at one or two buses based on the bus impedance matrix technique. The bus impedance matrix of the network with the addition of a fictitious bus at the fault point for each sequence network is constructed as a function of fault location. Fault location...
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