A high voltage equipment box

Abstract

A high-voltage equipment box, including a box, a high-voltage grounding switch located in the box, a voltage transformer, a lightning arrester, a high-voltage isolation switch and a vacuum circuit breaker, the box is divided into a low-voltage area and a high-voltage area by a partition, and the high-voltage The low-voltage part of the isolating switch and the low-voltage part of the vacuum circuit breaker are all installed in the low-voltage area; the high-voltage grounding switch and the high-voltage part of the vacuum circuit breaker are all installed on the side of the partition located in the high-voltage area, and the high-voltage part of the high-voltage isolating switch The supporting insulators are installed on the bottom surface of the high-voltage area, and the voltage transformers and arresters are respectively installed on the opposite side walls of the high-voltage area; main top cover. The high-voltage equipment box and the low-voltage section of the invention are beneficial to the maintenance of the high-voltage equipment, and the high-voltage equipment adopts a combination of side wall installation and bottom surface installation, which can reduce the overall volume of the high-voltage equipment box.

Description

technical field [0001] The invention belongs to equipment for electric locomotives and train sets, in particular to a high-voltage equipment box. Background technique [0002] High-voltage equipment box for electric locomotives and EMUs, the main high-voltage equipment in the box is: vacuum circuit breaker, high-voltage grounding switch, high-voltage isolating switch, voltage transformer and lightning arrester, etc. Among them, the high-voltage isolating switch is equipped with low-voltage components (pneumatic components and Dc110V Low-voltage circuit components), vacuum circuit breakers also include low-voltage control parts (drive mechanism, pneumatic components and DC110V low-voltage circuit components). [0003] At present, electric locomotives and EMUs use high-voltage equipment boxes to uniformly install the above-mentioned equipment in one box. The equipment layout is based on the convenience of high-voltage cable entry and exit, and the maintenance of high-voltage s...

AI Technical Summary

Problems solved by technology

Therefore, when the high-voltage switch products have faults in the action mechanism, low-voltage line, or pneumatic components, the sealed top cover of the high-voltage equipment box must be opened on the roof, and then the equipment must be removed from the box before maintenance. convenient

In addition, the different high-voltage equipment in the existing high-voltage equipment box are side-mounted on the side wall of the box, and the insulation performance is guaranteed through the bottom insulating partition. In this type of installation structure, the volume of the box is occupied by the space of the side wall by the independent high-voltage equipment The decision resulted in part of the existing high-voltage equipment box being idle, and the overall volume and weight of the box were relatively large, which was not conducive to the load-bearing of the roof installation structure.

Images