A.A. Somin1, Ja.V. Dominjuk2, B.A. Levitan3, R.A. Makarov4

1−3 PSC «Radiofizika» (Moscow, Russia)

3 Moscow Aviation Institute (National Research University) (Moscow, Russia)

3 Moscow Institute of Physics and Technology (National Research University) (Dolgoprudny, Russia)

4 216th Military Representative Office of the Ministry of Defense of the Russian Federation (Ryazan, Russia)

Problem statement. General power distribution equipment of complex radio-frequency facilities are impacted by inrush currents hundreds of times higher than the operative current rates that occur when the load is energized after a long-term power interruption.

This issue might lead to a total power supply system failure, provided a considerable quantity of power consumers is energized. Purpose. The work was carried out to develop methods for protection of large power distribution systems and radio-frequency hardware units against inrush current impact.

Results. The article presents several solutions for the problem of protection of power distribution equipment and radio-frequency hardware units against impact of an inrush current that occurs after long-term power interruption. The problem is shown to be solvable by both general power supply system design and radio-frequency hardware unit design. The article also describes specific solutions for the latter case.

Practical relevance. The presented methods for protection of power supply systems and radio-frequency hardware units have been applied in several functioning radio-frequency facilities.

Somin A.A., Dominjuk Ja.V., Levitan B.A., Makarov R.A. Radio-frequency hardware protection against inrush current at initial voltage supply. Radiotekhnika. 2021. V. 85. № 10. P. 67−80. DOI: https://doi.org/10.18127/j00338486-202110-07 (In Russian)

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