35 kV combined transformer shaped like Chinese character 'pin '

Abstract

A 35 kV combined transformer shaped like a Chinese character 'pin' is characterized in that a low-voltage switch equipment chamber, a high-voltage cable chamber and a transformer body are arranged on a mounting plane in a shape like the Chinese character 'pin', a high-voltage switch operation box and a high-voltage fuse operation box are respectively arranged at two ends of the transformer body, and box doors of the high-voltage fuse operation box and the high-voltage switch operation box are mutually independent and are not on the same operation plane; the high-voltage switch operation box and the high-voltage cable chamber box door are mutually independent and are on the same operation surface; and the high-voltage fuse operation box and the low-voltage switch equipment chamber box door are mutually independent and are on the same operation surface. According to the combined transformer, the expansion space of a low-voltage loop is ensured, the installation requirement of multiple low-voltage loop incoming and outgoing lines is met, the layout is more reasonable, and the space utilization rate is higher; the function interval is clearer, the high-voltage switch equipment and the high-voltage fuse are mutually independent in side operation, and operation and maintenance are convenient and safe; and the arrangement of the radiator is not influenced by high and low voltage chambers, the arrangement space is larger, and the temperature rise of the product can be controlled.

Description

technical field [0001] The present invention relates to the technical field of combined transformers, more specifically, to a 35kV character-shaped combined transformer. Background technique [0002] The combined transformer is a complete set of power transformation and distribution equipment that combines the transformer body, high-voltage load switch, protective fuse, and low-voltage power distribution device. The traditional transformer is designed in a box-type housing, which has the characteristics of small size, light weight, low noise, low loss, high reliability, etc., so it is widely used. [0003] In the prior art, the combination represented by the Chinese patent (CN03108110.X) "combined transformer", the Chinese patent application (CN108847335A) "a sub-box combined transformer", and the Chinese patent application (CN107863237A) "combined transformer" In the technical scheme of the type transformer, the transformer box, high-voltage equipment room, low-voltage equ...

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Problems solved by technology

[0003] In the prior art, the combination represented by the Chinese patent (CN03108110.X) "combined transformer", the Chinese patent application (CN108847335A) "a sub-box combined transformer", and the Chinese patent application (CN107863237A) "combined transformer" In the technical scheme of the type transformer, the transformer box, high-voltage equipment room, low-voltage equipment room and radiator are generally arranged in the shape of a mesh or a character on the plane. The area is the research direction. However, since the high-voltage load switch and the high-voltage fuse are arranged in the transformer box, the high-voltage load switch and its operating mechanism and the high-voltage fuse and its operating mechanism are on the same operating surface. , if the high-voltage fuse accidentally pops out, it will seriously affect the safety of the operator of the high-voltage load switch

In addition, with the development of the industrial economy, the requirements for the amount of low-voltage power supply and the number of circuits are increasing day by day, resulting in a large number of low-voltage incoming and outgoing circuits, and it is also necessary to fully reserve the expansion end of the low-voltage outgoing line, resulting in an increase in the width of the low-voltage equipment room. In addition, in some combined transformers, in order to reduce the length of the incoming and outgoing conductors, the radiator is arranged between the high-voltage equipment room and the low-voltage equipment room, thereby As a result, the heat dissipation space is limited and the heat dissipation effect is reduced

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