The sample data in this paper meets the needs of the experiment. First of all, taking into account the mechanical loss and service life of the load tap switch, too many tests will affect the normal working state of OLTC, resulting in the normal working state of the acquisition of OLTC vibration signal and the fault of the acquisition of OLTC vibration signal distinction is not obvious, making the probability of misjudgment of the diagnostic results increased. Secondly, the number of samples required for this experiment is defined by the reference document, which is also a mechanical fault diagnosis with load tap switch. Therefore, the data in this article is in line with the requirements. The literature represents the following:
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