KR20080043958A - Subterranean transformer - Google Patents

Abstract

A underground transformer is provided to easily perform maintenance and repair of the transformer by installing a bushing, a coil, and the like at an upper part of the transformer. In a underground transformer(101), a concrete wall(103) has a receiving space(102) to receive the transformer. The transformer and a pad switch are installed in the receiving space. Power cables(104) and bushings(105) are exposed to an upper part of the transformer and sealed with sealing kits. The bushings are installed at a part where power is inputted to a tank of the transformer from the power cable and maintains insulation of the transformer. A bay-o-net fuse and a fuse are installed inside the transformer. The bay-o-net fuse is connected to the bushing and a transformer coil to protect over-load of a secondary side of the transformer.

Description

Underground transformers {Subterranean transformer}

1 is a view showing a conventional ground transformer.

Figure 2 shows a underground transformer according to the present invention.

<Description of the symbols for the main parts of the drawings>

101: transformer 102: receiving space

103: wall 104: power cable

105: bushing

The present invention relates to an underground transformer, and in particular, to form a wall of the excavated buried space to form a receiving space for accommodating the transformer into a concrete structure, and install a transformer and a switch (PAD switch) in the receiving space, By connecting the power cable and the bushing to finish the connection part with the sealing kit, and forming the opening and closing door on the upper surface, it is installed in the sidewalk of the city and inside the building to damage the aesthetics of the city and reduce the space utilization of the building. By undergrounding, the underground transformers rejuvenate the aesthetics of the downtown and make efficient use of the building space.

In general, transformer is a device that changes the value of AC voltage or current by using electromagnetic induction action, and its type is various. In the distribution line, it is usually transmitted to high voltage of 3,300V ~ 22,000V in secondary substation, By converting to low pressure by supplying power to the consumer.

Common transformers we can see include columnar transformers suspended from poles like poles, and ground-mounted transformers that can be found at lower pedestrian streets.

The above-mentioned ground-mounted transformer is a rectangular parallelepiped transformer that is installed on the ground in the case of failing to supply electric power by installing a distribution line in the center of a city or a licensed area in aesthetic or peripheral conditions, that is, when a pole transformer is not installed. Protected by an enclosure.

However, most ground-mounted transformer enclosures frequently injure urban aesthetics by indiscriminately attaching various promotional stickers or illegal advertisements.

Looking at the reason of the sticker to the transformer enclosure, the ground-mounted transformer enclosure is a rectangular shape (height 1.5m or less) is easy to put a sticker, the ground-mounted transformer enclosure is mainly used by people such as the city center or licensed It is located in frequent places, so the propaganda effect is very large.

By the way, a lot of illegal advertising is attached to the transformer or switchgear exposed to the pedestrians. Not only is this illegal advertisement itself aesthetically pleasing, it can also be torn and dropped, causing a disturbance around the transformer.

In order to improve this point, there is a case in which the transformer is installed in the building, but this has a problem of reducing the space utilization for expensive buildings, as shown in Figure 1, the plastic member 10 is formed with a separate embossing 11 ) Is attached to the exterior of the enclosure (1). However, this method, as well as additional manufacturing costs and work costs, as well as long exposure to high temperature, there is a problem that fall, and the plastic member 10 is dropped can not be pasted again, resulting in the mass production of waste. .

At this time, the outer surface of the enclosure (1) to fall as well as paint to prevent rust, rust is generated immediately and the life of the case is shortened.

More importantly, in the case of a transformer, the case of the transformer is responsible for dissipating or dissipating heat. The addition of a separate member to the case results in a weakening of the function of the transformer case.

The present invention has been made in order to solve the above problems by laying a transformer installed on the ground to harm the aesthetics of the city underground to make the beauty of the city aesthetics, and to improve the space utilization inside the building The purpose is to provide.

The above object is to form a wall 103 of the buried buried space to be formed in a concrete structure to form a receiving space 102 for accommodating the transformer 101, the transformer 101 and the PAD switch (not shown) ) Is installed in the receiving space 102, the underground transformer, characterized in that the connection portion is closed with a sealing kit (not shown) by exposing the power cable 104 and the bushing 105 to the top of the transformer 101 Is achieved by 101.

Hereinafter, the configuration and operation of the present invention will be described with reference to FIG.

First, as shown in FIG. 2, the underground transformer 101 according to the present invention is formed by digging the ground into an accommodation space 102 in which the transformer 101 may be installed, and the transformer in the accommodation space 102. 101 is made by installing the switch.

As described above, the conventional ground transformer enclosure 1 has a structure in which an opening and closing door is attached to a side, and a bushing and a fuse are provided therein, whereas the underground transformer 101 according to the present invention is a transformer 101. The bushing 105 and the fuse in the upper portion of the configuration.

According to the present invention, the bushing 105 and the high voltage terminal side or the low voltage terminal side power cable 104 of the upper portion of the transformer 101 are wrapped with an insulation kit such as insulation tape to seal the insulation strength and eliminate the main cause of insulation failure. It is to improve the power supply reliability.

That is, as shown in FIG. 2, the upper portion of the transformer 101 is installed at a portion where power is drawn from the power cable 104 into the transformer 101 tank to maintain insulation of the transformer 101. Bushing 105 (bushing) is laid, the inside of the transformer 101 is connected between the bushing 105 and the transformer 101 coil (transformer coil) in the transformer 101 is connected to the A protective device such as a bay-O-Net fuse for protecting the secondary side overload and a fuse for performing tail protection of the secondary side accident in the transformer 101 are installed in a built-in manner.

At this time, the insulating oil is filled in the transformer 101 in order to insulate the connection parts and various components of the various components existing in the transformer 101.

As described above, the present invention can be buried under the ground by laying a transformer installed on the ground, the beauty of the city can be revived beautifully, and by removing the transformer installed on the ground, the space utilization inside the building as well as the road is improved. In case of maintenance due to transformer failure, the bushing, coil, etc. can be located on the upper part of the transformer, thereby making the work more convenient.

Claims (1)

The wall of the excavated buried space is formed into a concrete structure so that the accommodating space for the transformer is formed, and the transformer and the PAD switch are installed in the accommodating space, and the connection part is sealed by exposing the power cable and the bushing to the upper part of the transformer. Underground transformer, characterized in that finished in the kit.

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