FIG. 2, FIG. 3 and FIG. 35 illustrate the realizations of the described conception for a AC load 6 with terminals C and D. Terminals A and B are terminals of a voltage source. Terminals T1 and T2 are first and second terminals of a capacitor device 3 or terminals of a capacitor. Terminal T2 of said capacitor device is connected in series with said load 6 through an operating switching device 4 in off state. Terminals T1 is connected to terminal A of a voltage source 1 of AC with a switching device 2. FIG. 2 and FIG. 3 with FIG. 4 illustrate the realizations of the described conception for an inductive load L (for example, a load can be a coil, or a relay, or a contactor, or a heating coil, or a heating coil interacting with a magnet material, or a heating coil of an oven).
