A connection device for easy plugging and unplugging of inner cone cables and its connection method with cables

Abstract

The invention provides a connection device facilitating plugging of an inner cone cable. The connection device comprises a force bearing ring, a pressing terminal, a connection conductor and a contact ring provided with a chain touch finger. One end of the pressing terminal is in confining pressure connection with a conductor core, and the other end of the pressing terminal is in threaded connection with a contact ring. The force bearing ring is sleeved on the conductor core in confining pressure connection with the pressing terminal and is connected with the head portion of the cable. The connection conductor is sleeved on the outer portion of the pressing terminal and butts against the force bearing ring and the contact ring. The invention also provides a connection method of the connection device and the inner cone cable. The connection method is characterized in that one end of the pressing terminal is pressed onto the conductor core in the peripheral direction in a confining pressure way, the force bearing ring and the connection conductor are sequentially sleeved in from the other end of the pressing terminal, and finally the contact ring of the chain touch finger is made to be in threaded connection with the other end of the pressing terminal. The connection device and the connection method can improve the stability and convenience of plugging connection between the inner core cable and a metal conductor of an inner cone socket, and accordingly achieve good electrical performance and through-current capability of the electric equipment.

Description

technical field [0001] The invention relates to a power cable accessory, in particular to a cable connection device and a connection method with the cable. Background technique [0002] In medium and high voltage GIS gas insulated switchgear, circuit breakers and transformers, inner cone socket metal conductors and cables are generally used for plugging and unplugging connection. The inner cone plug-in structure of cables and metal conductors has good flow capacity and many times of plugging and unplugging. , Easy to install and use and good electrical performance are favored by customers. [0003] At present, the following two connection structures are mostly used for the insertion and removal of inner cone cables and inner cone socket metal conductors: [0004] One is to firstly install a conical compression structure on the conductor core, and then provide a ring structure on the cone jacket for current conduction. This connection structure has the following defects: ①T...

AI Technical Summary

Problems solved by technology

This connection structure has the following defects: ①This structure requires the use of special conductor crimping tools, and there is no relevant standard. The equipment provided by each manufacturer is different and cannot be used universally; ②During field use, when plugging and unplugging, Easy to fall off, causing inconvenience to use

This connection structure has the following disadvantages: after the cable insulation layer is aged or worn, it is easy to cause the failure of the connection between the buckle and the cable insulation layer, thereby affecting the electrical connection between the cable conductor core and the ring structure; The opening of the hook groove of the insulating layer is also easy to break, resulting in the connection structure remaining in the metal conductor of the inner cone socket, which is difficult to handle on site

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