Inner cone plug-in and plug-out cable combination accessory

Abstract

The invention relates to an inner cone plug-in and plug-out cable combination accessory. The inner cone plug-in and plug-out cable combination accessory comprises an inner cone plug and an inner conesocket, wherein a conical plugin is arranged at one end of the inner core plug, a conical groove is formed in one end of the inner cone socket and is matched with the conical plugin, a conductor is arranged in the other end of the inner cone socket, a silica gel conical sleeve is arranged between a surface of an outer side of the conical plugin and an inner wall of the conical groove, an irregularly-shaped sleeve is arranged in a switch cabinet and is connected with the inner cone socket in a matching way, and a cylindrical creepage-prevention umbrella skirt is arranged at an end part of one end, connected with the inner cone socket, of the irregularly-shaped sleeve and is matched with the inner cone socket. By tight matching of the inner cone socket, the conical plugin and the silica gelconical sleeve, the air tightness and the insulation performance of electrical connection in the inner cone socket during electrical connection are ensured; the irregularly-shaped sleeve is electrically connected with the inner cone socket, the cylindrical creepage-prevention umbrella skirt is further arranged, thus, the creep distance between the irregularly-shaped sleeve and the inner cone socket after connection is ensured as well as the connection tightness between the irregularly-shaped sleeve and the inner cone socket is guaranteed, and the problems of poor insulation strength and the sealing performance of an outgoing line end of a narrow air ring main unit or an environmental-friendly ring main unit are solved.

Description

technical field [0001] The invention relates to the technical field of medium-voltage switchgear, and more specifically, relates to an inner cone plug-in cable combination accessory. Background technique [0002] As my country's manufacturing technology in the field of medium-voltage switches tends to be stable and mature, and at the same time, the development of large-scale domestic construction, the demand for electricity is increasing. In the secondary transformation and distribution of the power system, the use of ring network cabinets The number is also increasing, which mainly depends on the outstanding advantages of the ring network cabinet. It has the characteristics of simple and compact structure, small size, flexible operation, reliable interlocking, and convenient expansion of cabinet type. It is suitable for opening and closing stations, box type Substations, residential quarters, industrial and mining enterprises, large shopping malls and other places; while the ...

AI Technical Summary

Problems solved by technology

[0002] As my country's manufacturing technology in the field of medium-voltage switches tends to be stable and mature, and at the same time, the development of large-scale domestic construction, the demand for electricity is increasing. In the secondary transformation and distribution of the power system, the use of ring network cabinets The number is also increasing, which mainly depends on the outstanding advantages of the ring network cabinet. It has the characteristics of simple and compact structure, small size, flexible operation, reliable interlocking, and convenient expansion of cabinet type. It is suitable for opening and closing stations, box type Substations, residential quarters, industrial and mining enterprises, large shopping malls and other places; while the existing narrow air ring network cabinets and environment-friendly ring network The problem of poor insulation strength and poor sealing at the outlet end of the ring network cabinet is more prominent, and it is a technical problem that needs to be solved urgently

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