Manpower carrying vehicle for replacing current transformer of 500kV and carrying method for vehicle

Abstract

The invention discloses a manpower carrying vehicle for replacing a current transformer of 500kV and a carrying method for the vehicle. The carrying vehicle comprises a big carrying vehicle (1) and a small carrying vehicle (2) which are matched for use, wherein a big bearing support (3) and a small bearing support (4) are respectively and fixedly mounted on the big carrying vehicle and the small carrying vehicle; the top bearing surface of each of the big bearing support and the small bearing support is concave and shaped like a circular arc, and the top bearing surfaces are respectively used for bearing the big end and the small end of the current transformer of 500kV; adjustable steering grips (5) are respectively mounted on the outer sides of the big carrying vehicle and the small carrying vehicle; universal wheels (6) are mounted at the bottom of each of the big carrying vehicle and the small carrying vehicle. When the carrying vehicle disclosed by the invention is adopted to replace the current transformer of 500kV, the construction can be performed without cutting off power, and the carrying method is safe and reliable, and saves time, labor and investment.

Description

technical field [0001] The invention belongs to the technical field of a construction device and method for a power reconstruction and extension project at a site where high-voltage equipment is live with electricity. Specifically, it is the technology of transporting the new 500kV current transformer to the side of the 500kV current transformer to be replaced in advance with a manpower truck. Background technique [0002] The 500kV SF6 current transformer or oil-immersed current transformer is bulky, can be as long as 6.3 meters in length, weighs up to 2.5 tons, and is top-heavy. At the construction site of the power reconstruction and expansion project where the high-voltage equipment is live, it is necessary to replace this type of current transformer. For transformers, the current method of transporting current transformers in place is power outage operation, that is, after the grid equipment is powered off and the work permit procedures are completed, the new 500kV curr...

AI Technical Summary

Problems solved by technology

[0003] Using the above method, due to the relatively high box of the truck, when the current transformer is placed on the box and hoisted in the place where the high-voltage equipment is live, the electrical safety distance of the construction site will be insufficient (that is, the crane and the current transformer are equidistant, and the high-voltage electrified The electrical safety distance of the body is not enough), so the new 500kV current transformer must be transported and placed in place after a power failure, resulting in short effective working time, low work efficiency, narrow operating space, and great difficulty in transportation and handling

Not only is it time-consuming, labor-intensive, and costly, but it also poses a major safety hazard. A little carelessness may damage equipment such as current transformers and even construction personnel

Images