Evaluating the Transient Impedance of Transmission Line Towers
نویسندگان
چکیده
The low-frequency methods used by most utilities nowadays for measuring the resistance of transmission line ground electrodes are inaccurate or cannot be applied when overhead groundwires are connected to the towers. Moreover, many of them are costly and time consuming. This paper proposes and compares two new methods for evaluating the transient impedance of transmission line towers. Both methods simulate the lightning-like impulse injection into the transmission tower base and measure the resulting potential rise relative to a remote ground.
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