Inrush current free switching apparatus and control method thereof

Abstract

The invention relates to an inrush current free switching apparatus and control method thereof. The inrush current free switching apparatus includes a mechanical switch, a first unidirectional thyristor, a second unidirectional thyristor, a control unit, and a current limiting element. The first unidirectional thyristor is connected with the current limiting element in series to form a series circuit, the series circuit is connected with the second unidirectional thyristor in parallel, two ends of a main circuit of the mechanical switch is connected with the second unidirectional thyristor in parallel, the control unit is connected with the control terminal of the mechanical switch, the control unit is connected with the first unidirectional thyristor and the second unidirectional thyristor. The control unit prestores operating time parameters of the mechanical switch.

Dependencies are inferred from the claim text.