Investigations on using white noise as a test signal for performing frequency response measurements on transformers

S Arumugam - Electric Power Systems Research, 2022 - Elsevier
White noise is a random signal mathematically analogous to an impulse function in time and
flat spectrum in frequency. Naturally, the white noise may be used as an alternative test …

Time-frequency analysis of excitation signals used to determine the transfer function of the power transformers windings

P Zydron, M Kuniewski, Ł Fuśnik - 2019 Progress in Applied …, 2019 - ieeexplore.ieee.org
In the diagnostic tests of power transformers windings condition, the method of the transfer
function (TF) analysis has been used for several decades. Its gradual development included …