High-voltage centrally-installed switchgear with automatically-controlled drawing-out unit part

Abstract

The invention discloses a high-voltage centrally-installed switchgear with an automatically-controlled drawing-out unit part. The high-voltage centrally-installed switchgear comprises a cabinet body, wherein a bottom plate is arranged inside the cabinet body and is used for placing a drawing-out unit, a cabinet door is further arranged outside the cabinet body, first power-driven telescopic rods are separately and movably arranged at the two inner sides of the cabinet body, an output end of each first power-driven telescopic rod is movably connected with one side of the cabinet door, a sliding rail is arranged at each of the two sides of the bottom plate, four corners at the lower part of the drawing-out unit are separately and movably connected with the sliding rails at the two sides of the bottom plates through a group of sliding blocks, a connection block is further arranged at the middle position of the lower part of the drawing-out unit, a second power-driven telescopic rod is arranged on the inner wall of the cabinet body at the lower rear part of the drawing-out unit, and an output end of the second power-driven telescopic rod is connected with the connection block under the drawing-out unit. The centrally-installed switchgear can be automatically drawn out, the drawing-out unit also can be supported without any external support element, and the repair work of a maintainer is greatly facilitated.

Description

technical field [0001] The invention relates to a power distribution cabinet, in particular to a high-voltage central cabinet with automatic control extraction unit parts. Background technique [0002] The central cabinet is called the metal armored central removable switchgear. It is a high-voltage power distribution device with a maximum working voltage of 3.6 / 7.2 / 12kV. It is an indoor complete power distribution device for a three-phase AC 50Hz single-bus section system or a double-bus section system. It is used to receive and distribute 3.6-12kV network power, and implement control, protection, monitoring and measurement of power circuits. The central switchgear is mainly used in power plants, power transmission of small and medium-sized generators, power reception and power transmission of secondary substations in power systems, power distribution of industrial and mining enterprises, and starting of large high-voltage motors. [0003] When the traditional central cab...

AI Technical Summary

Problems solved by technology

[0003] When the traditional central cabinet is overhauled, it needs to be equipped with an external support trolley, such as figure 1 As shown, when pulling out 100 of a drawer unit, it is necessary to use an external support trolley 200 as the support of the drawer unit. In this way, it is necessary to carry a support trolley every time the central cabinet is overhauled. Therefore, for Inconvenience caused by maintenance personnel

Since there are more devices installed on each withdrawing unit on the central cabinet, and the weight will increase, therefore, the physical strength of the maintenance personnel is increased in the withdrawing action

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