Ground fault search instrument, and ground fault point search method and system
A technology for grounding faults and faulty lines, applied in the fault location, detecting faults according to conductor types, instruments, etc., can solve the problems of difficulty in finding ground fault points, long-term power outages, and complicated lines, so as to shorten the fault finding time and improve work efficiency. Efficiency, the effect of reducing economic losses
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Embodiment 1
[0030] figure 1 A schematic structural diagram of a ground fault point finder provided by an embodiment of the present invention is shown, including: a ground fault point finder body 10 and a ground test electrode 20, wherein the ground test electrode includes a first test electrode and a second test electrode ,exist figure 1 Only one test pole is shown. Wherein, the first test pole is used to connect the starting end of the faulty line; the second test pole is used to connect each down line of the faulty line.
[0031] The above-mentioned first test pole and second test pole also include a data line 201, a data line interface 202, an insulating telescopic rod 205, a handle 203 and a test head 206; wherein, the test head 206 includes a test point ( figure 1(not shown in the figure), the insulating telescopic rod 205 and the handle 203 are hollow structures, and the data cable 201 passes through the hollow structure to connect the test head 206 and the data line interface 202...
Embodiment 2
[0040] In order to facilitate the further understanding of the ground fault point finder provided by the above embodiments, on the basis of the above embodiments, the embodiments of the present invention also provide a method for finding ground fault points, which applies the ground fault point described in the above embodiments Troubleshooter, such as image 3 As shown in the flowchart, the method includes the following steps:
[0041] Step S302, connecting the first test pole to the starting end of the faulty line;
[0042] Step S304, move the ground fault point finder and the second test pole along the faulty line, connect the second test pole to each downline of the faulty line, and measure the voltage value at each downline;
[0043] Step S306, when the voltage value of each downline is less than the set threshold, the ground fault point finder will give an alarm prompt, and the ground fault point finder will send the location of the downline to the server.
[0044] In ...
Embodiment 3
[0048] Corresponding to the ground fault point finder and the ground fault point search method provided by the above embodiments, the embodiment of the present invention further provides a ground fault point search system, Figure 4 A structural block diagram of a ground fault point finding system provided by an embodiment of the present invention is shown. The system includes a server 400 and a plurality of ground fault point finding instruments, and the ground fault point finding instruments communicate wirelessly with the server. in, Figure 4 Only two ground fault point finders are shown in the figure, namely, the ground fault point finder 401 and the ground fault point finder 402. In actual use, the number of the ground fault point finder can be set according to the actual situation. This embodiment of the invention does not limit this.
[0049] In specific implementation, a client 403 for dispatchers can also be provided on the side of the server 400. When line inspecti...
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