JPH0736405Y2 - Transformer bottom support - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting a bottom portion of a transformer for an electric power supply and demand instrument (hereinafter referred to as PCT) in a cubicle, and an insulator for fixing a cable. It is a thing.

[0002]

2. Description of the Related Art A conventional cubicle of this type is shown in FIG. FIG. 8 is a PCT layout diagram of a conventional cubicle.
This cubicle is provided with a lateral beam 32 for suspending the PCT on the upper part of a box body 31 constituting the cubicle. PCT
Is box-shaped, and the upper part thereof is suspended and supported by the cross beam 32. The ends of the lead wires W extending from both sides of the PCT are connected to the cable C, and are fixed to the box body 31 via the insulator 33 in the vicinity of this connection portion.

[0003]

The length of the lead wire W extending from the PCT varies depending on the model, and cutting is not allowed. Therefore, the PCT is first fixed to the cubicle, and when the height position is determined, the lead wire W
The height position of the insulator 33 is determined in correspondence with the position of the end of the, and is fixed to the box body 31. In this case, the work of selecting and mounting the insulator 33 must be performed in a narrow space below the PCT, which is a very inefficient and difficult work. Moreover, in the cubicle as described above, the PCT is
It is supported by the cross beam 32 only at its upper part. Therefore, the lower part is unstable, and there is a possibility that it may shake and be damaged by vibration such as an earthquake. Therefore, it is desired to support the lower part of the PCT in a cubicle. Therefore,
An object of the present invention is to provide a bottom support device for a PCT, which can increase the efficiency of insulator mounting work when mounting the PCT on a cubicle and can reliably support the lower part of the PCT.

[0004]

In the present invention, in order to solve the above-mentioned problems, a horizontal placing portion 9 for receiving a bottom surface of a PCT and vertically extending downward from both left and right sides of the placing portion 9 are provided. , Both side plate portions 10 having a plurality of bolt insertion holes 25 vertically spaced from each other, a mounting portion 11 to a cubicle provided on the rear side of the mounting portion 9, and a spacer 23 to the both side plate portions 10 An insulator mounting plate 22 that is mounted in parallel at intervals and that has three bolt insertion holes 27 for mounting insulators arranged in at least two rows in the upper and lower direction and at a distance from each other in the front and rear, and the insulator mounting plate 22 is positioned in the upper and lower positions. One of the bolt insertion holes 2 of the both side plate portions 10 is fixed so that it can be changed.
5 and the plurality of bolts 24 inserted into the elongated holes 26 of the insulator mounting plate 22, and the insulator mounting plate 22 for fixing the vicinity of the connecting portion between the lead wire W extending from both left and right sides of the PCT and the cable C. Fixed to the front and back at a distance from each other
Insulators 21 and insulator mounting bolts 21a respectively inserted into the three bolt insertion holes 27 of any row of the insulator mounting plate 22 for mounting the insulator 21 on the insulator mounting plate 22 so that the insulator 21 can be moved up and down. Thus, the bottom support device 6 of the PCT was constructed.

[0005]

The bottom supporting device 6 of the PCT according to the present invention is fixed to the lower part of the PCT in advance outside the cubicle. Also,
Insulators 21 are attached to both side plate portions 10 of the bottom support device 6 in correspondence with the positions of the ends of the lead wires W of the PCT. Insulator 21
In mounting, the upper and lower positions of the insulator mounting plate 22 with respect to the side plate portion 10 and the upper and lower positions of the insulator 21 with respect to the insulator mounting plate 22 are appropriately adjusted according to the length of the lead wire W and the size of the lower portion of the PCT. The vertical position of the insulator mounting plate 22 is determined by the selection of the bolt insertion hole 25 through which the bolt 24 is inserted and the position of the bolt 24 in the elongated hole 26. The vertical position of the insulator 21 with respect to the insulator mounting plate 22 is determined by selecting the hole 27 through which the insulator mounting bolt 21a is inserted.
Further, the mounting intervals on the left and right sides are determined by selecting the length of the spacer 23. Then, the bottom support device 6 is put into the cubicle together with the PCT, and is hung up to a predetermined position by a chain block or the like to suspend the upper part, and then the mounting portion 11 at the rear part of the bottom support device 6 is fixed to the cubicle. Next, the cable C is connected to the lead wire W of the PCT, and the vicinity of the connecting portion B is fixed to the insulator 21. Since only the rear portion of the bottom support device 6 is coupled to the cubicle, there is no obstacle such as wiring in the front space on the door side, and the work can proceed smoothly. Since the lower part of the PCT is supported by the bottom support device 6, there is no risk of swaying due to an earthquake or the like.

[0006]

1 to 7 show an embodiment of the present invention.
1 is a perspective view of a bottom support device according to the present invention, FIG. 2 is a front view of the bottom support device body, FIG. 3 is a side view of the bottom support device body, FIG. 4 is a side view of an insulator mounting plate, and FIG. FIG. 6 is a sectional view of the main body of the bottom support device, FIG. 6 is a perspective view of a box-shaped PCT attached, and FIG. 7 is a front view of the cubicle with the PCT attached.

In FIGS. 6 and 7, 1 is a cubicle box body, 2 is vertical column rails arranged in four directions in the box body 3, and 3 is a front side surface provided with a door. Support rods 4 and 5 for suspending a suspension rod A on the upper portion of the PCT are installed so as to face each other on front and rear side faces of the upper portion of the box body 1.
A support plate 7 is installed below the support rod 5, and a lower portion of the PCT is fixed to the support plate 7 via a bottom support device 6. As shown in FIGS. 1 to 5, the bottom support device 6 of the PCT includes a body 8, holding members 14 and 15 for fixing the PCT to the body 8, and an insulator 21 for supporting the cable. ing. The main body 8 of the bottom support device 6 is formed by bending a steel plate into a substantially U-shape, and includes a horizontal mounting portion 9, a pair of parallel side plate portions 10 extending vertically downward from both sides thereof, and a side plate portion 10. It has a mounting tongue piece 11 extending right and left from the rear end at a right angle. Attachment tongue 11
Is a mounting portion for fixing the main body 8 to the support plate 7 with bolts. The notches 12, 13 are provided in front of and behind the mounting portion 9.
Are formed in the notches 12 and 13, and the pair of pressing members 14 and 14 face each other so as to be movable in the front-back direction.
Is installed. A pair of left and right pressing members 15,
The pressing members 15 face each other in a direction orthogonal to the pressing members 14 and 14 so as to penetrate the side plate portion 10 and be movable in the left-right direction. Each of the pressing members 14 and 15 includes a pressing plate 16 formed by bending a strip plate into an L shape, and a bolt 17 penetrating a vertical contact piece 16 a of the pressing plate 16. Then, the side plate portion 10 has front and rear cuts 1
A circular hole 18 for inserting the bolt 17 and a rectangular hole 19 for inserting the guide piece 16b of the pressing plate 16 are formed at an intermediate portion between the Nos. 2 and 13. On the lower surface of the mounting portion 9, screw receiving pieces 20 for screwing the bolts 17 of the pressing members 14 and 15 are provided in four directions. When the bolt 17 is screwed into the screw receiving piece 20,
The guide piece 16b slides on the lower surface of the screw receiving piece 20.

The three insulators 21 are fixed to the mounting plate 22 by mounting bolts 21a. Mounting plate 22
Is a bolt 24 through the spacer 23.
Fixed on the outside of. That is, as shown in FIGS. 3 and 5, the side plate portion 10 has two front and rear portions 2 for inserting the bolts 24.
One hole 25 is formed in three steps vertically, and the mounting plate 22
Two elongated holes 26 corresponding to the holes 25 are formed in the. Then, the bolt 24 is inserted into these and tightened with a nut. The mounting plate 22 has three holes 27 through which the mounting bolts 21a of each insulator 21 are inserted.
6 and 6 are formed alternately. Therefore, the mounting plate 22 is
By selecting the position of the bolt 24 in the long hole 26 or the hole 25 through which the bolt 24 is inserted, the mounting position can be changed up and down with respect to the side plate portion 10. In addition, the side plate portion 10
The distance between the mounting plate 22 and the mounting plate 22 can be changed by replacing the spacer 23. Furthermore, the insulator 21 is attached to the attachment plate 22 at the upper and lower bolt insertion holes 2
By selecting 7, 27, it is possible to change to upper and lower two stages. Then, as shown in FIG. 7, the vicinity of the connecting portion B between the lead wire W extending from the PCT and the cable C is fixed to the insulator 21.

However, when the PCT is installed inside the cubicle, the bottom support device 6 is fixed to the lower part of the PCT outside the cubicle in advance. In both the columnar type and the box type PCT, the bolts 17 are screwed in, the pressing members 14 and 15 are moved, and the side faces of the PCT are pressed and fixed to the mounting portion. Insulators 21 are attached to both side plate portions 10 of the bottom support device 6 in correspondence with the positions of the ends of the lead wires W of the PCT. When mounting the insulator 21, the mounting interval and the vertical mounting position with respect to the side plate portion 10 are appropriately selected in accordance with the length of the lead wire W and the width of the lower portion of the PCT in the left-right direction. In this case, the vertical position is adjusted by adjusting the fixed position of the mounting plate 22 with respect to the side plate portion 10,
This is performed by adjusting the mounting position of the insulator 21 itself to the mounting plate 22. The attachment interval of the side plate portion 10 is adjusted by selecting the length of the spacer 23. Then, the bottom support device is put in the cubicle together with the PCT, and is lifted to a predetermined position by a chain block or the like to suspend the upper part, and then the mounting portion 11 at the rear part of the bottom support device 6 is fixed to the support plate 7 of the cubicle. Then, connect cable C to P
Connect to the lead wire W of CT, and insulate the vicinity of this connection part 2
Fixed to 1. Since only the rear part of the bottom support device 6 is connected to the support plate 7 of the cubicle, there is no obstacle such as wiring in the front space on the door side, and the work can proceed smoothly. Since the lower part of the PCT is supported by the bottom support device 6, there is no risk of swaying due to an earthquake or the like.

[0010]

As described above, according to the present invention, the PCT
A horizontal mounting portion 9 for receiving the bottom surface of the mounting portion 9, both side plate portions 10 that vertically extend downward from the left and right sides of the mounting portion 9 and that have a plurality of bolt insertion holes 25 at vertical intervals. A cubicle attachment portion 11 provided on the rear side of the placing portion 9
And an insulator mounting plate 22 that is mounted on the both side plate portions 10 in parallel via a spacer 23 with a space therebetween, and that has three bolt insertion holes 27 provided in at least two rows in the upper and lower direction with a mutual space in the front and back. In order to fix the insulator mounting plate 22 so that the vertical position can be changed, a plurality of bolts 24 inserted into any one of the bolt insertion holes 25 of the both side plate portions 10 and the elongated hole 26 of the insulator mounting plate 22 and the left and right of the PCT. In order to fix the vicinity of the connecting portion between the lead wire W extending from both sides and the cable C, three insulators 21 are fixed to each insulator mounting plate 22 with a front-rear interval with each other, and an insulator is attached to the insulator mounting plate 22. Two
In order to mount 1 so that the vertical position can be changed, the bottom support device 6 of the PCT is configured by including the insulator mounting bolts 21a respectively inserted into the three bolt insertion holes 27 of any row of the insulator mounting plate 22. , Can be fixed to the lower part of the PCT in advance in a free space outside the cubicle.
In addition, the attachment interval of the insulator 21 to the left and right sides of the side plate portion 10 and the vertical attachment position can be appropriately selected according to the length of the lead wire W of the PCT and the size of the lower portion of the PCT. Moreover, this work can be performed smoothly in a free space outside the cubicle. Further, there is an effect that the lower portion of the PCT can be fixed and can be reliably supported.

[Brief description of drawings]

FIG. 1 is a perspective view of a bottom support device according to the present invention.

FIG. 2 is a front view of a bottom support device body.

FIG. 3 is a side view of a bottom support device body.

FIG. 4 is a side view of an insulator mounting plate.

FIG. 5 is a cross-sectional view of a bottom support device body.

FIG. 6 is a perspective view of a box-shaped PCT in a mounted state.

FIG. 7 is a front view of the cubicle with a PCT attached.

FIG. 8 is a front view of a conventional PCT accommodating cubicle.

[Explanation of Codes] 6 Bottom Support Device 9 Placement Part 10 Side Plate Part 11 Mounting Part 21 Insulator 21a Insulator Mounting Bolt 22 Insulator Mounting Plate 23 Spacer 24 Bolt 25 Bolt Insertion Hole 26 Long Hole 27 Bolt Insertion Hole C Cable W Lead Wire PCT Transformer

Claims (1)

[Scope of utility model registration request] 1. A cubic mount for supporting a bottom portion of a transformer for a power supply and demand instrument, and a horizontal mounting portion for receiving and mounting a bottom surface of the transformer, and downwards from both left and right sides of the mounting portion. To the cubicle provided on the rear side of the mounting part, and the spacers on both sides of the both side plate parts through a spacer. Insulator mounting plates that are mounted on the outside in parallel at intervals and that have three bolt insertion holes for mounting insulators that are spaced apart from each other in the front and rear and are provided in at least two rows above and below for selecting the mounting height. , In order to fix the insulator mounting plate so that the vertical position can be changed, a plurality of bolts inserted into any one of the bolt insertion holes of the both side plate portions and the elongated holes of the insulator mounting plate, and from the left and right sides of the transformer. Extended lead wire and cable In order to fix the vicinity of the connection portion with the bull, the attached bolts are inserted through the insulator bolt insertion holes in any one of the upper and lower rows of each insulator attachment plate, and they are fixed at a front and rear interval with each other.
A bottom support device for a transformer, comprising: two insulators.