JP6902943B2 - Transformer installation structure - Google Patents

Description

The present invention relates to an installation structure of a transformer forming a part of a high-voltage power receiving facility installed indoors, and particularly to a transformer installation structure when a plurality of transformers are installed adjacent to each other.

High-voltage power receiving equipment (specifically, power receiving and transforming equipment exceeding 50 kVA and 2000 kVA or less) installed in office buildings and middle- and high-rise apartments is installed in an electric room provided in the building. ..
Therefore, when installing the high-voltage power receiving equipment, it is necessary to bring the equipment that constitutes the high-voltage power receiving equipment to the electric room in the building, but the heavy transformer is a dedicated cube made of angle material or the like. It was housed in the frame frame body of the above, and was carried in and installed for each frame frame body (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2014-107936

As described above, the transformer is usually housed in the frame frame and carried in and installed at a predetermined position in the electric room. However, the frame frame is manufactured in consideration of the passage width and the door width at the time of carrying in. The transformer was housed in.
On the other hand, when installing multiple transformers in the electric room, there is a rule that the transformers must be installed at a certain distance (for example, 200 mm) or more (high voltage power receiving equipment regulation), and the distance between the transformers must be set. It was measured and installed. Therefore, it took time and effort to construct.

Therefore, in view of such a problem, it is an object of the present invention to provide a transformer installation structure that can be installed by easily opening a certain distance between transformers installed adjacent to each other.

In order to solve the above problem, the invention of claim 1 is a transformer installation structure in which at least two transformer frames accommodating a transformer are installed adjacent to each other in a frame body formed of an angle material in a box shape. there, the transformer frame each other is installed adjacently comprises are linked via the isolation member, said isolation member, Ru with the approach prevention means for the transformer frame to each other linked not close below a certain distance On the other hand, the width dimension in the adjacent direction of the frame frame is formed to be equal to or slightly larger than the width of the transformer to be accommodated, and the approach preventing means for the separating member is sandwiched between the frame frames. The approach preventing means is formed at a width equal to the separation distance set between the transformers .
According to this configuration, the transformer frames installed adjacent to each other are connected by a separating member, so that a certain distance can be opened between the transformer frames installed adjacent to each other. Then, in order to prevent the transformer frames from approaching each other below a specific distance by the approach prevention means of the isolation member, the operator should separate the transformers by a certain distance or more without considering the distance between the transformers. Can be done.

In addition, since the approach preventing means is arranged at a position where the frames are sandwiched between the frames, the mutual distance does not fall below a certain distance determined by the approach preventing means even if there is shaking such as an earthquake. In addition, since the fixed distance is a fixed distance between the transformers, the width of the frame frame may be the same as or slightly larger than the width of the transformers, and the transformer frame can be installed in a small space. Easy to carry in / out.

According to the present invention, by connecting the transformer frames installed adjacent to each other with a separating member, it is possible to open a certain distance between the transformer frames installed adjacent to each other. Then, in order to prevent the transformer frames from approaching each other below a specific distance by the approach prevention means provided on the isolation member, the operator separates the transformers by a certain distance or more without considering the distance between the transformers. be able to.

It is a perspective explanatory view which shows an example of the transformer installation structure which concerns on this invention, and shows the state which two transformers are installed adjacent to each other. It is a top view of FIG. The isolation member is shown, (a) is a plan view, (b) is a front view, and (c) is a side view.

Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. FIGS. 1 and 2 show an example of the transformer installation structure according to the present invention, and show a state in which two transformers are installed adjacent to each other. 1 is a perspective view, FIG. 2 is a plan view, 1 is a frame frame body accommodating a transformer 2, 3 is an isolation member arranged between the frame frame bodies 1, and a state in which the transformer 2 is housed. The frame frame 1 of the above will be described below as a transformer frame 4.

The frame frame 1 has a quadrangular bottom frame 1a and a top frame 1b formed by welding or bolting rod-shaped angle members, and columns 1c are arranged and connected at four corners between the two. It is made into a rectangular parallelepiped shape. The transformer 2 is housed in the internal space of the frame body 1 formed in this way. However, when installing a plurality of transformer frames 4, the width dimension in the lateral direction to be installed adjacent to each other shall be substantially the same as the width of the transformer 2 to be accommodated, and the dimensions in the front-rear direction and the height direction shall be the dimensions of the transformer 2. On the other hand, it is formed with a size that has sufficient margin.
In this embodiment, the frame body 1 is manufactured with a width slightly larger than that of the transformer 2, but the width may be the same as that of the transformer 2 and may not be smaller than the width of the transformer 2 to be accommodated. Then, the transformer mounting portion 1d is provided on the bottom frame 1a of the frame frame 1 thus produced, and the transformer 2 is accommodated.

3A and 3B show a separating member 3, FIG. 3A is a plan view, FIG. 3B is a front view, and FIG. 3C is a side view.
The isolation member 3 is a metal plate body bent into an L shape, and has a connecting piece 3a having holes 30 at the left and right ends for bolting to the frame frame 1 and a central portion of the connecting piece 3a. It has a spacer piece 3b as an approach preventing means formed by bending the frame 1 into an L shape, and the hole 30 is formed as a horizontally long hole in consideration of installation variation of the frame frame 1 and an error in the mounting position. There is. Further, the width T of the spacer piece 3b is set to the minimum separation distance (for example, 200 mm) between the transformers 2.

On the other hand, bolt insertion holes 11 (shown in FIG. 1) for connecting the isolation members 3 are bored in the four columns 1c of the frame body 1. Bolt insertion holes 11 are provided at two upper and lower positions on the front side and the back side of the frame body 1, respectively, and the holes 30 of the isolation member 3 are aligned with the bolt insertion holes 11 so that the bolts and nuts (not shown) are used. Both are linked. At this time, as shown in FIG. 2, the spacer pieces 3b are arranged and connected so that the spacer pieces 3b attached to the front side and the spacer pieces 3b attached to the rear side face each other toward the inside, and the upper and lower 2 The frame frames 1 are connected to each other at the points.

The assembly of the transformer installation structure configured as described above is as follows. First, the transformer frame 4 is brought into the installation site and placed at the installation position. At this time, a plurality of transformer frames 4 constituting the high-voltage power receiving equipment are carried in and arranged. For example, in the case of equipment that receives three-phase power, three transformer frames 4 are arranged adjacent to each other in a row.

The arranged transformer frames 4 are then connected by the isolation member 3. At this time, if the distance cannot be connected by the isolation member 3, the position of the transformer frame 4 is operated to move to a connectable position, and two upper and lower parts are connected by using bolts and nuts. At this time, since the hole 30 of the isolation member 3 is a long hole, it can be connected even if the transformer frame 4 has a slight positional deviation, and a total of four front and rear positions are connected by the isolation member 3.
However, when connecting three transformer frames 4, the transformer frame 4 arranged in the center and the transformer frames 4 arranged on the left and right of the transformer frame 4 are connected by, and a total of eight places are connected by the isolation member 3. Will be done. By this connection, the spacer pieces 3b are arranged so as to be sandwiched between the transformer frames 4, and the transformer frames 4 are connected to each other while maintaining a predetermined distance. That is, the transformers 2 are installed while maintaining the set separation distance.

In this way, the transformer frames 4 installed adjacent to each other are connected to each other by the isolation member 3, so that a certain distance can be opened between the transformer frames 4 installed adjacent to each other. Then, in order to prevent the spacer pieces 3b of the isolation member 3 from approaching the transformer frames 4 below a specific distance, the operator keeps the transformers 2 constant without considering the distance between the transformers 2. It can be separated by more than a distance.
Further, since the spacer pieces 3b are arranged at positions sandwiched between the frame frames 1, the mutual distance does not fall below a certain distance defined by the spacer pieces 3b even if there is shaking such as an earthquake. Further, since the fixed distance is a distance defined between the transformers 2, the width of the frame frame 1 may be the same as or slightly larger than the width of the transformer 2, and the transformer frame 4 can be used in a space-saving manner. It can be installed and is easy to carry in / out.

In the above embodiment, the upper and lower parts of the frame body 1 are connected by the isolation member 3, but when the bottom frame 1a of the frame frame 1 is fixed to the floor by anchor bolts or the like, the upper part 1 It is sufficient to connect only the parts.

1 ... frame frame body, 1c ... support, 2 ... transformer, 3 ... isolation member, 3b ... spacer piece (access prevention means), 4 ... transformer frame.

Claims (1)

It is a transformer installation structure in which at least two transformer frames accommodating transformers are installed adjacent to each other in a box-shaped frame made of angle material.
The transformer frames installed adjacent to each other are connected to each other via an isolation member.
While the isolation member, the Ru with the approach prevention means for the transformer frame to each other linked not close below a certain distance,
The width dimension of the frame frame in the adjacent direction is formed to be equal to or slightly larger than the width of the transformer to be accommodated, and is formed.
The isolation member's approach prevention means is arranged at a position where the frames are sandwiched between the frames, and the approach prevention means is formed with a width equal to the separation distance set between the transformers. Transformer installation structure.

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