Diagnosis device and diagnosis method for corrosion of earth screen of large-size transformer substation
A technology for diagnosing devices and substations, applied in the directions of measuring devices, measuring device casings, fault locations, etc., can solve problems such as difficulty in improving accuracy, complex electromagnetic environment, and large interference of magnetic induction intensity.
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[0077] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0078] like Figure 1~Figure 4 Shown is an embodiment of the large-scale substation ground network corrosion diagnosis device of the present invention, which is mainly composed of a distributed collection box, a signal collection device, a mobile computing PC and a 3G wireless communication terminal.
[0079] See figure 2 and image 3 , the distributed junction box is composed of a box body, a protective cover, a terminal and a measurement lead. It is a two-core flexible wire, one end of which is electrically connected to the lower end of the terminal, and the other end is welded to the lead wire of the grid node of the ground grid.
[0080] The box body of the distributed junction box is a disc shell with a thickness of 8mm~18mm, a height of 80mm~180mm, and a diameter of 250mm~600mm. The box body is made of ABS resin, and the protective cover is a ...
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