Bus-bar support insulator and switch cabinet

Abstract

The invention relates to a bus-bar supporting insulator and a switch cabinet. The bus-bar supporting insulator comprises an insulating column and an insert; one end of the insulating column is used fixedly assembled on a switch cabinet body; two insulating protective wings are integrally formed at the other end of the insulating column; the two insulating protective wings and the insulating columndefine an installing groove for installing a bus-bar lap joint structure; the two insulating protective wings are used for realizing insulating protection for the bus-bar lap joint structure; the insert is embedded in the groove bottom of the installing groove; the insert is a threaded sleeve with internal threads and is matched with a threaded fastener to fixedly assemble the bus-bar lap joint structure in the installing groove, or the insert is a screw rod with external threads and is matched with a nut to fixedly assemble the bus-bar lap joint structure in the installing groove; the two insulating protective wings can realize insulation protection role for the bus-bar lap joint structure in the installation groove, an insulation distance between two phases is guaranteed; and the insulation column support the bus-bar lap joint structure, meanwhile, the threaded fastener or the nut is not exposed, and the discharge phenomenon of the threaded fastener or the nut is avoided.

Description

technical field [0001] The invention relates to a bus support insulator and a switch cabinet. Background technique [0002] The main function of the switchgear is to open and close, control and protect electrical equipment in the process of power system power generation, transmission, distribution and power conversion. According to the different installation methods of the circuit breaker, it can be divided into a removable switch cabinet and a fixed switch cabinet. In the power system, armored removable metal-enclosed switchgear has been widely used. Most of these switchgears are composed of four compartments, namely busbar room, circuit breaker room, cable room and instrument room. [0003] The Chinese utility model patent with the authorized announcement number CN202997405U discloses a kind of armored removable metal-enclosed switchgear. The main busbar is arranged in the cable room of the switchgear. Since the main busbar is long, in order to facilitate assembly, the ma...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a busbar support insulator to solve the problem that the heat-shrinkable joint box is used to realize the insulation protection at the overlapping structure of the busbar in the prior art, and the heat-shrinkable joint box is prone to phase-to-phase discharge due to aging after long-term use technical problems; the object of the present invention is also to provide a switchgear to solve the problem of heat-shrinkable joint box to achieve insulation protection at the busbar lap structure in the prior art, but the heat-shrinkable joint box is prone to aging due to long-term use Technical problems with phase-to-phase discharge phenomenon

Images