Multi-level progressive classification and identification method for small-current ground faults
A technology of small current grounding and classification identification, which is applied in the direction of fault location, measurement of electricity, and measurement of electrical variables, etc., can solve the problems of single and fuzzy identification types, achieve clear structure, promote continuous improvement, and be easy to program.
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[0055] In order to achieve the above purpose, the technical solutions adopted in the present invention are as follows: figure 1 , 2 :
[0056] The fault characteristics are decomposed into 4 different factors, and analyzed at different levels to form a multi-level progressive fault classification and identification method, which provides a basis for further establishment of a fault identification model.
[0057] The method for multi-level progressive classification and identification of low-current grounding faults includes setting up a four-layer progressive fault classification data module according to the characteristics of low-current grounding faults, so as to provide a basis for further establishing a fault identification model. Specifically, it includes the first step. Module layer 1, the first module layer 1 divides faults into permanent faults, transient faults and intermittent faults according to the time-domain characteristics of the faults. Permanent faults refer ...
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