Abstract:During the operation of the power transformer, the fault location often occurs in the winding, and the fault phenomenon caused by insufficient short-circuit withstand ability of the winding is particularly prominent. Based on this problem, this article proposes an improved symplectic geometry mode decomposition (ISGMD) algorithm to evaluate the short-circuit withstand ability of winding. The realization method is to use the algorithm to perform time-frequency decomposition of the vibration signal of the transf… Show more
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