Maintenance trolley for medium-voltage switchgear

Abstract

A maintenance trolley for a medium-voltage switchgear is applied in maintenance of a high-voltage switchgear. An upper lead screw driving mechanism and a lower lead screw driving mechanism respectively drive an upper crossbeam and a lower crossbeam push an upper pushing board and a lower pushing board for starting a static contact curtain door of the high-voltage switchgear. An insulating board and a lower insulating board are respectively linked with the upper crossbeam and the lower crossbeam. A single-side static contact curtain door of the high-voltage switchgear can be opened according to the requirement, and furthermore one insulating board is added outside the opened static contact curtain door of the high-voltage switchgear, thereby realizing double protections and facilitating an operator in switchgear body maintenance. Furthermore the maintenance trolley has advantages of high safety factor, effective monitoring a maintenance field and performing warning, high convenience in use and maintenance, simple structure, low cost and good recyclability.

Description

technical field [0001] The invention relates to a trolley for checking and repairing medium-voltage switch cabinets, which is used in the work of checking and repairing medium and high-voltage switch cabinets in substations. Background technique [0002] The medium and high voltage switchgear in the substation is one of the most conventional and important equipment in the substation. The medium and high voltage switchgear equipment is used in the power grid with high frequency and wide distribution. There are many daily maintenance tasks, but the medium and high voltage switchgear is small in size and structure Complicated, difficult to maintain, labor-intensive, low work efficiency, and high cost of maintenance; the maintenance trolley for medium-voltage switchgear in traditional technology generally uses fixed push blocks to open the upper and lower static contact cover curtain doors at the same time, and the upper and lower Exposure of static contacts at the same time is ...

AI Technical Summary

Problems solved by technology

[0002] The medium and high voltage switchgear in the substation is one of the most conventional and important equipment in the substation. The medium and high voltage switchgear equipment is used in the power grid with high frequency and wide distribution. There are many daily maintenance tasks, but the medium and high voltage switchgear is small in size Complicated, difficult to maintain, labor-intensive, low work efficiency, and high cost of maintenance; the maintenance trolley of the medium-voltage switchgear in the traditional technology generally uses fixed push blocks to open the upper and lower static contact cover curtain doors at the same time, and the upper and lower Exposure of static contacts at the same time is likely to cause safety hazards, and full-time guardians are required; and during system maintenance and operation, unexpected factors such as foreign objects will cause abnormalities, affecting measurement accuracy, and large-scale power outages are required, and maintenance cycles are long. Manpower and resources Large consumption, high maintenance cost, waste of resources

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