FERRORESONANCE IN ELECTRICAL NETWORK 6-35 kV

Begmatov Shavkat Ernstovich

doi:10.5281/zenodo.11068033

FERRORESONANCE IN ELECTRICAL NETWORK 6-35 kV

25.04.2024 International Scientific Journal "Science and Innovation". Series A. Volume 3 Issue 4

Begmatov Shavkat Ernstovich

Abstract. Ferroresonance in 6-35kV electrical networks and the cause of power voltage transformer damage are considered. To study ferroresonance, a reliable dynamic model of nonlinear transformer inductance is established and more accurate equations for determining equivalent parameters are derived. On the basis of the dynamic model, the Weber-Ampere characteristic of the transformer core with instantaneous values of currents and flux-currents is constructed. Boundary conditions of ferroresonance stability and determination of boundary values of network capacitance are given on the example of calculation of equivalent parameters of energy-saving power voltage transformer TMG12-250/35

Keywords: 6-35kV electrical network, ferroresonance, power voltage transformer, nonlinear inductance, dynamic model, equivalent parameters, Weber-Ampere characteristic, boundary conditions of ferroresonance stability

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