High-voltage common-box closed bus duct

Abstract

The invention provides a high-voltage common-box closed bus duct which comprises a box body. A fixed plate is fixedly connected to the bottom end of the inner surface of the box body, an insulator is arranged on the outer surface of the upper end of the fixed plate, an adjusting mechanism is arranged between the insulator and the fixed plate, and a cleaning mechanism is arranged on the outer surface of the upper end of the insulator. A fixing mechanism is arranged on the outer surface of the upper end of the cleaning mechanism; and the fixing plate comprises a movable cavity, a movable rod, a first pressure spring and a first air plug. According to the device, under mutual cooperation of the adjusting mechanism, the cleaning mechanism and the fixing mechanism, a user can conveniently adjust the height of the insulator to enable the box body to adapt to installation in different environments, and the user can conveniently clean dust on the outer surface of a bus conductor while the user conveniently installs and fixes the bus conductor; and the stability of the insulator can be further improved so that the applicability of the device is improved, and the service life of the device is prolonged.

Description

technical field [0001] The invention relates to the technical field of bus ducts, in particular to a high-voltage common box closed bus duct. Background technique [0002] This series of closed bus duct has excellent short-circuit resistance performance. Because of the protection of aluminum (or weak magnetic steel plate) shell, it can effectively reduce the structural heating caused by eddy current or circulating current, reduce the temperature of the closed bus bar shell, reduce the power loss, and increase the load. Flow rate, reduce electric power, this series of closed busbar has advanced structure, the installation and maintenance holes can be arbitrarily set on the upper or lower part of the closed busbar, for the indoor closed busbar with large current, there are ventilation shutters on both sides and the lower part of the shell, To enhance heat dissipation and reduce temperature rise, double insulation and multi-point connection grounding of the shell are adopted, s...

AI Technical Summary

Problems solved by technology

[0005] 1. The traditional insulator is fixedly connected to the fixed plate, and the height cannot be adjusted, so it cannot adapt to the installation of the bus conductor in different environments. At the same time, after the bus conductor is installed, the bus conductor shakes, which in turn drives the insulator to shake. Time shaking will cause the insulator to separate from the fixed plate, which is a great safety hazard. After the safety hazard occurs, it will take a lot of time to overhaul and affect the production progress in the factory;

[0006] 2. In the process of installing the bus conductors in the closed bus duct of the traditional high-voltage common box on the insulator, the upper splint and the lower splint are generally connected with bolts for preliminary fixing, and then the bus conductors are passed through the upper splint and the lower splint. Since the bus conductor is too long, it is not convenient for the user to pass through the gap. At the same time, the bus conductor will collide with the bolt during the process of passing through the gap, which will cause the insulation layer wrapped on the surface of the bus conductor to break, which will affect the subsequent normal use of the bus conductor.

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