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This paper demonstrates that the presence of -In reference [3], the currents to both terminals are assumed multiple load taps cannot be neglected for single-phase-to-ground to have the same phase difference for any power system fault location A new method has been developed takmg th~s into configuration connected to the located line. As this consideration, that can be applied to correct the location error due assumption is not matenalized in general, the to intermediate power sources Then fault location methods for reactance is not perfectly compensated. parallel double-circuit two-terminal transmission lmesare -In the method shown in reference [4], the discussed Finally, a new fault location method is proposed for reactance is perfectly compensated by means of the high-resistance grounded double-circuit transmission lines with unpedance on the opposite-side power source But it is three terminals.difficult to acquire the accurate value of power source Impedance, because it vanes accordmg to the configuration Keywords: Fault location, Transmission line, Load tap, Parallel of the power network connected to the line.-Ln reference [12], the influence of errors in setting the value of the opposite-side power source impedance, used to compensate the apparent reactance, is decreased by using the voltage and current before the fault double-circuit

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