Permanent magnetic mechanism-operated medium-voltage dual-power source automatic transfer switching apparatus

The utility model relates to a permanent magnetic mechanism-operated medium-voltage dual-power source automatic transfer switching apparatus. The permanent magnetic mechanism-operated medium-voltage dual-power source automatic transfer switching apparatus mainly comprises copper bars, a frame assembly, switch bodies, a switch body supporting frame, a rolling wheel group, a permanent magnetic mechanism assembly, a connecting rod mechanism, a switch state indicating mechanism, a switch body moving contact transmission mechanism, an interlocking mechanism, a hydraulic buffer and a manual switch-off operating mechanism; and three copper bars form a copper bar group and are installed at metal end surfaces of the upper parts of correspondingly switch bodies of power sources at two sides. According to the permanent magnetic mechanism-operated medium-voltage dual-power source automatic transfer switching apparatus, two sets of independent high-reliability permanent magnetic mechanisms are adopted, so that structural simplicity can be realized; the permanent magnetic mechanisms can simultaneously control the action of three-phase moving contacts of a power source at one side, and switching-on and switching-off speed is controllable; the permanent magnetic mechanisms have self-holding forces and can realize switching-on holding; permanent magnet coils can be electrified instantaneously, so that low energy consumption can be realized; and the permanent magnetic mechanism-operated medium-voltage dual-power source automatic transfer switching apparatus is provided with mechanical and electrical multiple interlocking devices which cooperate with each other, so that misoperation of the switches in any state can be avoided.