Distributed fault location method for T-circuit
A fault location and distributed technology, applied in the direction of fault location, etc., can solve the problem that the fault branch cannot be correctly and effectively judged, and achieve the effects of improved ranging accuracy, good application prospects, and simplified algorithms
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[0032] Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.
[0033] See 2, figure 2 It is the installation distribution diagram of the fault current detection device in the T-shaped circuit of the present invention. As shown in the figure, two Rogowski coils are installed on each branch in the T-shaped circuit as the fault current detection device, respectively A 1 , B 1 、A 2 , B 2 、A 3 , B 3 , where A 1 、A 2 、A 3 For the first group of fault current detection devices, they are the same distance from T node, B 1 , B 2 , B 3 They are respectively located on the three branches MT, NT and PT of the T-shaped line, and take the center point of each branch as the symmetrical point and A 1 、A 2 、A 3 Relatively symmetrical position, i.e. MB 1 、TA 1 、TA 2 , NB 2 、TA 3 , PB 3 The distance is Y. The wave impedance of each transmission line is Z. Since the distance measurement method is the same whe...
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