Cable water tree branch fault positioning method based on impedance spectrum technology
A technology of fault location and impedance spectroscopy, which is applied in the direction of fault location and fault detection according to conductor type, can solve problems such as damage, high cost, and outage of large electrical systems, and achieve large bandwidth, large time width, and distance and distance The effect of conflicting resolutions
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[0053] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0054]The present invention is illustrated by taking the multi-core cable structure in which each core wire does not contain a conductor shielding layer as an example. figure 1 , for cables with multi-core structure, in order to study the running state of each wire, two core wires are taken to form a transmission loop, and its transmission characteristics are determined by the distribution parameters between the two core wires. Although the structures of coaxial cables and multi-core cables are quite different, they can be equivalent to distributed parameters when studying their transmission characteristics.
[0055] A cable water branch fault location method based on impedance spectrum technol...
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