Method and system for locating short-circuit fault of high-voltage single-core cable
A single-core cable, short-circuit fault technology, applied in fault location, information technology support system, fault detection using pulse reflection method, etc., can solve the problems of poor safety and high technical parameters of testing equipment, etc., to achieve high safety and applicable Wide range, to achieve the effect of precise positioning
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[0059] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0060] Such as figure 1 As shown, a short-circuit fault location method for a high-voltage single-core cable includes the following steps:
[0061] Step 1: Collect the leakage current reflection wave signal at the head end and / or end of the cable under test with DC voltage applied at both ends;
[0062] Step 2: Identify the leakage current reflected wave signal at the head end and / or end of the cable to be tested, and obtain the arrival time of the leakage current reflected wave signal at the head end and / or end of the cable to be tested;
[0063] Step 3: Calculate the distance from the fault point to the head end and / or end of the cable under test according to the arrival time of the leakage current reflected wave...
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