Abstract
The paper presents the studies on digital processing of oscillograms of the power transformer operation allowing determining the state of its windings of different types and degrees of damage. The study was carried out according to the authors' own methods using the Fourier analysis and the developed program based on the following application software packages: MathCAD and Lab View. The efficiency of the algorithm was demonstrated by the example of the waveform non-defective and defective transformers on the basis of the method of nanosecond pulses.
Highlights
One of the causes of damage is effects of short circuit currents, resulting in the displacement of turns in the windings of the high power transformer [1]
Research method The voltage pulse applied to the matched load was exhibited by an oscilloscope „Tektronix-TDS2012‟ using the standard probe of the P2220 type applied to the oscilloscope with a bandwidth of 200 MHz
The number of entries К must be calculated in order to set simultaneous starting time, which is required to equalize the processed oscillogram relative to the standard sample and enter the coefficient in the box “Number of entries”
Summary
IOP Conf. Series: Materials Science and Engineering 124 (2016) 012107 doi:10.1088/1757-899X/124/1/012107 O V Vasileva1, A A Budko1 and A V Lavrinovich2 1 National Research Tomsk Polytechnic University, 30, Lenin ave., Tomsk, 634050, Russia 2 Institute of high-current electronics Siberian Branch of the Russian Academy of Sciences Tomsk, 2/3, Academic ave., Tomsk, 634055, Russia
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