Miniaturized vacuum ring network cabinet

Abstract

The invention discloses a small-sized vacuum ring main unit. The small-sized vacuum ring main unit comprises a G profile shell, wherein the internal space of the G profile shell is divided into three isolation rooms, including an instrument room, a bus room and a switch cable room based on functions; the isolation rooms are completely isolated by isolation plates; the isolation plate between the bus room and the switch cable room is a pulling-inserting type metal isolation plate assembly; a secondary element wiring module is arranged in the instrument room; an improved vacuum switch assembly and a cable connecting assembly connected with the improved vacuum switch assembly are arranged in the switch cable room; a primary bus assembly is arranged in the bus room; the primary bus assembly is connected with the improved vacuum switch assembly; and a secondary wiring port of the improved vacuum switch assembly is connected with the secondary element wiring module. The small-sized vacuum ring main unit has the advantages that the polar pole of the improved vacuum switch assembly is a solid-sealed polar pole, and an insulating base is added in the middle part of the polar pole, so that the creepage distance of the product is enlarged; and the metal isolation plates are stable in grounding performance.

Description

Technical field [0001] The invention relates to a miniaturized vacuum ring network cabinet, which belongs to the technical field of medium voltage complete switch equipment. Background technique [0002] The vacuum ring main unit is composed of vacuum switch components, cabinet body, primary main circuit module and secondary element wiring module. The vacuum switch assembly is fixed on the cabinet with screw fasteners. The internal compartments of the ring network cabinet are divided into three compartments: busbar room, low-voltage room, and switch cable room according to purpose. Each compartment is separated by partitions, and the partition between the busbar room and the switch cable room is an insulating partition. There are two main problems: 1. Since there are two separate gaps between the three-phase poles of the vacuum switch assembly, the production and installation of the insulating partition are very difficult, which is not conducive to rapid production; 2. When the ...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a miniaturized vacuum ring network cabinet with high strength, compact structure, safety and reliability, which solves the gap between the three-phase poles of the vacuum switch assembly and the insulation The partition will have problems of moisture and insulation aging

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