Vehicle-mounted mobile transformer with position-adjustable outgoing line sleeve

Abstract

The invention belongs to the technical field of mobile substations, and particularly relates to a vehicle-mounted mobile transformer with a position-adjustable outgoing line sleeve. In order to overcome the defect that the width and height exceed the limit in transportation when an existing conventional transformer is applied to a vehicle-mounted mobile substation, the following technical scheme is adopted, namely, the vehicle-mounted mobile transformer with a position-adjustable outgoing line sleeve comprises a transformer body and a high-voltage outgoing line sleeve, the high-voltage outgoing line sleeve comprises an oil-SF6 gas sleeve, an SF6 gas-air sleeve and a connecting device, the oil-SF6 gas sleeve is installed on a high-voltage sleeve base, the connecting device is installed on the oil-SF6 gas sleeve, the SF6 gas-air sleeve is installed on the connecting device, and the SF6 gas-air sleeve can rotate relative to the connecting device so that the position of the SF6 gas-air sleeve is adjustable. The vehicle-mounted mobile transformer has the beneficial effect that the SF6 gas-air sleeve can rotate and is adjustable in position so that the transportation requirements of high-voltage equipment such as 220kV equipment are met.

Description

technical field [0001] The invention belongs to the technical field of mobile substations, and in particular relates to a vehicle-mounted mobile transformer with adjustable outlet bushing positions. Background technique [0002] In the face of sudden power equipment failures, natural disasters or temporary alternative power supply needs, the vehicle-mounted mobile substation can be deployed to a substation of the corresponding voltage level at any time to ensure a stable power supply of the grid. The vehicle-mounted mobile substation is flexible, convenient to transport, has strong road adaptability, and does not need to occupy land for a long time. It is an innovative solution with low cost and high efficiency in limited space. [0003] The vehicle-mounted mobile transformer is based on the original transformer technology, and the vehicle-mounted design of the transformer is carried out: the high-voltage bushing adopts the method of side outlet, the oil conservator is desig...

AI Technical Summary

Problems solved by technology

However, due to the structural and size limitations of large-capacity oil-immersed transformers, the overall transportation of transformers has relatively large transportation restrictions, which cannot meet the requirements of road transportation.

It leads to an increase in the transportation cost of the whole station, and seriously limits the advantage of the quick response of the mobile substation site

The problem that the transformer used in the vehicle-mounted mobile substation is transported beyond the limit has not been effectively solved

[0004] The structural and size limitations of large-capacity oil-immersed transformers are mainly reflected in: when the transformer uses a composite bushing to go out, without considering the correction, the 110kV transformer can be transported as a whole on a 3-meter-wide vehicle board, and the high-altitude correction or 110kV In order to meet the electrical insulation distance of transformers with the above voltage levels, a 3-meter-wide vehicle board cannot meet the requirements for overall transportation; if overhead wiring is not considered, direct connection with oil and gas bushings can be considered, and transformers and switchgear with low voltage levels can be considered Arranged in the same vehicle, but the relative position requirements of high-voltage transformers and high-voltage switches are extremely strict, and the arrangement of high-voltage transformers and switchgear in the same vehicle will have transportation problems such as super long and large turning radius

[0005] In short, the high-voltage side of a power transformer is usually composed of a high-voltage bushing base and a high-voltage bushing. According to the current design, the height of the high-voltage bushing base and the high-voltage bushing and the overall width between the three phases usually exceed the road transportation requirements. The transportation cost is relatively high, and even the ultra-wide and ultra-height exceeds the limit, which does not meet the requirements of transportation laws and regulations, and faces the risk of traffic control and punishment

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