Switch cabinet bus connection device

Abstract

The invention relates to a switch cabinet bus connection device composed of a box and a transition bus arranged in the box. The box is composed of a left box body, a right box body and a transition box body, the left box body and the right box body are fixed to the top of a left switch cabinet and the top of a right switch cabinet respectively, the left box body is communicated with the right box body through the transition box body, the left box body, the right box body and the transition box body define a sealed cavity, one end of the transition bus in the box is connected with a bus terminal extending from the inside of the left switch cabinet according to a phase sequence, and the other end of the transition bus is connected with a bus terminal extending from the inside of the right switch cabinet according to an inverted sequence. By means of the technical scheme, the structure is reasonable and compact, inverted sequence connection between the two switch cabinets is achieved by changing the spatial structure of the transition bus, the insulating effect is good, and great convenience is brought to inspection and maintenance of the whole device due to the splicing structure of the box bodies.

Description

technical field [0001] The present application relates to a connection device, in particular to a switch cabinet bus bar connection device. Background technique [0002] At present, busbar bridge boxes are often used in substations to electrically connect switchgears. The busbar phase sequence of switchgears is generally A-B-C. However, due to space constraints, most switchgears will be placed in multiple rows. If two rows of switchgears are placed face to face, when the two switchgears at the end of the two rows are connected, the outgoing bus phase sequence A—B—C will be connected with the two complete switchgears with bus phase sequence C—B—A , because the switchgear is mass-produced, it is difficult to produce the switchgear with the phase sequence of the bus bar as C—B—A, and there will be huge hidden dangers in the switchgear self-modified by the substation. In addition, electrical equipment such as switchgear has very strict requirements on insulation, so the busbar ...

AI Technical Summary

Problems solved by technology

If two rows of switchgears are placed face to face, when the two switchgears at the end of the two rows are connected, the outgoing bus phase sequence A—B—C will be connected with the two complete switchgears with bus phase sequence C—B—A , because the switchgear is mass-produced, it is difficult to produce the switchgear with the phase sequence of the bus bar as C—B—A, and there will be huge hidden dangers in the switchgear self-modified by the substation

In addition, electrical equipment such as switchgear has very strict requirements on insulation, so the busbar bridge box is a sealed structure, and the structure is very complicated, which makes it difficult to dismantle and repair when there is a problem in the bridge box

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