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Nowadays voltage transients in electrical power systems can take different shapes related to properties of distortion source and physical phenomenon appearing in systems. Usually overvoltages contain oscillation components of different frequencies, which are propagating along lines reaching transformer terminals. Overvoltages impact power transformer insulation systems in spite of used overvoltage...
Overvoltages are transferred through power transformers by electromagnetic couplings between windings. Their waveforms and maximal values depends on overvoltages shapes occurring in power systems and physical mechanisms in transformer windings. It is a need of coordination insulation studies to perform analysis of transferred overvoltages influence on insulation system of electrical power equipment...
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