Power distribution network operation voltage monitor

The utility model discloses an electric power distribution network operation voltage monitor in the technical field of voltage monitor installation. The device comprises a wall body, a voltage monitor, an expansion sleeve, a bolt, a first screw, a second screw and a protective shell, an embedding groove is formed in the wall body of the wall body; the expansion sleeves are uniformly inserted intothe inner side walls of the caulking grooves; the protective shell comprises an embedded box and a shell cover. By using the embedded box and the shell cover, the voltage monitor can be embedded in awall body by adopting an embedded method, so that a hidden installation effect is achieved, the voltage monitor is prevented from being exposed out of the wall, the purpose of protecting the voltage monitor can be achieved, and the voltage monitor can be prevented from protruding out of the wall surface to influence the construction. 本实用新型公开了电压监测仪安装技术领域的一种电力配电网运行电压监测仪，包括墙体、电压监测仪、膨胀套筒、螺栓、第一螺丝、第二螺丝和防护壳，所述墙体的壁体上开设有嵌槽，所述膨胀套筒均匀