The utility model relates to the technical field of experimental training teaching equipment, and discloses a portable teaching control box for an
alternating current switch
machine, which comprises a teaching box main body, a frequency converter, a fuse, a
switching power supply, a plurality of transformers and a plurality of relays are arranged in the teaching box main body, and a bottom bracket is arranged at the bottom of the teaching box main body. Universal wheels are rotatably connected to the four corners of the bottom surface of the bottom support, side supports are fixedly connected to the two ends of the bottom support, sliding grooves are formed in the two sides of the interior of each side support, sliding blocks are slidably connected to the interiors of the sliding grooves, a protruding block fixedly connected with the sliding blocks is arranged between the two sliding blocks, and the protruding blocks are fixedly connected with the side walls of the teaching box body. According to the portable teaching control box for the alternating-
current switch machine, all devices in a five-wire
system turnout
mechanical room are covered inside, when the portable teaching control box is used for teaching, only the teaching box body needs to be connected with the external switch
machine, the portable teaching control box can be used, and compared with equipment which is high in price and large in size in the
mechanical room, needed space and cost are smaller; and on-demand exercise can be conveniently carried out at any time.