A common box type ring network cabinet

Abstract

The invention relates to a common box type ring network cabinet, which includes a shell, a load switch and a grounding switch arranged in the shell, a first installation frame is arranged in the shell, and the load switch and the grounding switch are installed on the first On the frame, the axis of the operating shaft of the load switch and the operating shaft of the grounding switch extend along the front and rear directions, and the front side plate of the housing is equipped with sealing and rotating devices corresponding to each operating shaft one by one across the front and rear of the front side plate. On both sides of the wall-penetrating shaft, the rear end of the wall-penetrating shaft is provided with a anti-rotation plug-in section that is mated with the front end of the corresponding operation shaft. A fixing structure for fixing the first installation frame behind the front side plate. The invention provides a box-type ring main unit which can be installed modularly and at the same time, the gear transmission structure can be placed outside the casing.

Description

technical field [0001] The invention relates to switchgear, in particular to a box-common ring network cabinet. Background technique [0002] The ring network cabinet is suitable for the control and protection devices in the power system ring network power supply, terminal power supply or dual radiation power supply system. The common box type ring network cabinet is to set the load switch, circuit breaker, grounding switch, etc. in the same closed shell, and the circuit breaker is not available in every ring network cabinet. Existing box-type ring network cabinets such as the "indoor box-type metal-enclosed ring network cabinet" disclosed in Chinese patent CN201478729U, the ring network cabinet includes a shell and a load switch, a circuit breaker and a grounding switch arranged in the shell , the housing includes a top board, a bottom board, and a front side board, a rear side board, a left side board and a right side board arranged between the top board and the bottom bo...

AI Technical Summary

Problems solved by technology

The existing problems of this kind of ring main unit are: 1. The components of circuit breaker, load switch and grounding switch have many unit parts, and the degree of integration and modularization is not high. It is difficult to realize the offline pre-assembly of each component. During assembly, each part of the circuit breaker, load switch, and grounding switch must be assembled on the housing separately, resulting in a very slow assembly process of the ring network cabinet and low production efficiency, because it is necessary to install all parts of the components on the housing On the inner wall of the shell, the structure of the shell is also relatively complicated, the design of the shell is cumbersome, and the design cycle of the shell is long; 2. The gear transmission mechanisms of each operating shaft are arranged in the shell, which is not conducive to observing and adjusting the meshing of the gears The degree and the corresponding opening distance also bring difficulties to the assembly to a certain extent.

Images