JPH0530333Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[0001]

[Industrial Application Field] This invention is designed to install a power supply and demand instrument transformer (hereinafter referred to as
It is called PCT. ) relates to a device for supporting the bottom of a

[0002]

2. Description of the Related Art A conventional cubicle of this type is shown in FIG. Figure 8 shows the PCT of a conventional cubicle.
It is a layout diagram. This cubicle is equipped with a cross beam 32 on the top of a box body 31 that suspends the PCT. The PCT is box-shaped, and its upper part is suspended from a 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 an insulator 33 in the vicinity of this connection.

[0003]

[Problems to be solved by the invention] The length of the lead wire W extending from the PCT varies depending on the model, and cutting is not allowed. Therefore, in the cubicle, the PCT is first fixed, and once its height position is determined, the height position of the insulator 33 is determined in accordance with the position of the end of the lead wire W, and then fixed to the box body 31. ing. In this case, the work of locating and installing the insulator 33 must be performed in a narrow space under the PCT, resulting in very inefficient and difficult work. Further, in the above cubicle, the PCT is supported only at its upper part by the cross beam 32. Therefore, the lower part is unstable and may shake and be damaged by vibrations such as earthquakes. Therefore, it is desirable to support the lower part of the PCT on the cubicle, but the PCT
Not only do the dimensions differ depending on the model, but there are also box-shaped and cylindrical types, so such PCT
There is a problem in that it is difficult to uniformly manufacture a device that supports this. Therefore, the present invention can improve the efficiency of insulator installation work when installing a PCT to a cubicle, and can easily accommodate PCTs of various sizes and shapes and reliably support the lower part of the PCT.
The objective is to provide a bottom support device for PCT.

[0004]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention includes a horizontal mounting section 9 on which the bottom of the PCT is placed, and a horizontal mounting section 9 that extends vertically downward from both left and right sides of the mounting section 9. both side plate parts 10,
A mounting section 11 for attaching to the cubicle provided on the rear side of the mounting section 9 is provided, and the side plates are provided with a mounting section 11 for fixing the vicinity of the connection section between the lead wire W and the cable C extending from both the left and right sides of the PCT. The bottom support device 6 of the PCT was constructed by attaching the insulators 21 to the side plate portions 10 so that the mounting intervals in the left and right sides and the vertical mounting positions thereof could be changed. In addition, in order to fix the lower part of the PCT, a plurality of holding members 14 and 1 are provided on the mounting part 9 of the bottom support device 6 to press down the side surface of the lower part of the PCT and prevent it from swinging.
5 is provided so that the fixed position can be moved according to the size and shape of the PCT.

[0005]

[Operation] The PCT bottom support device 6 of the present invention is fixed to the bottom of the PCT in advance outside the cubicle. The holding members 14 and 15 are moved in accordance with the size and shape of the PCT, and are brought into pressure contact with the side surface of the PCT and fixed to the mounting section 9. Further, insulators 21 are attached to both side plates 10 of the bottom support device 6 in correspondence with the positions of the ends of the lead wires W of the PCT. When installing the insulator 21, check the length of the lead wire W, PCT
The mounting intervals on the left and right sides and the upper and lower mounting positions with respect to the side plate portion 10 are appropriately selected in accordance with the dimensions of the lower part of. And the bottom support device 6 along with the PCT
is placed in the cubicle and hoisted to various positions using a chain block or the like, and after the upper part is suspended, the mounting portion 11 at the rear of the bottom support device 6 is fixed to the cubicle. Next, connect cable C
It is connected to the lead wire W of the PCT, and the vicinity of this connection part B is fixed to the insulator 21. Since only the rear part of the bottom support device 6 is connected to the cubicle, there are no obstacles such as wiring in the space in front of the door, 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 it shaking even in an earthquake or the like.

[0006]

[Embodiment] An embodiment of the present invention is shown in FIGS. 1 to 7. 1 is a perspective view of the bottom support device according to the present invention, FIG. 2 is a front view of the bottom support device main body, FIG. 3 is a side view of the bottom support device main body, FIG. 4 is a side view of the insulator mounting plate, and FIG. 5 is a side view of the bottom support device main body. Figure 6 is a cross-sectional view of the main body of the bottom support device, Figure 6 is a perspective view of the box-column type PCT installed, Figure 7 is
FIG. 3 is a front view of the cubicle with the PCT attached.

[0007] In FIGS. 6 and 7, 1 is a cubicle box, 2 is a vertical support rail arranged on four sides inside the box 1, and 3 is a front side surface provided with a door. Support rods 4 and 5 for suspending the upper horizontal rod A of the PCT are installed on the front and rear sides of the upper part of the box body 1 so as to face each other. Below the support rod 5,
A support plate 7 is installed, and the lower part of the PCT is fixed to this support plate 7 via a bottom support device 6. As shown in FIGS. 1 to 5, the PCT bottom support device 6 includes a main body 8, holding members 14 and 15 for fixing the PCT to the main 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 part 9, a pair of parallel side plate parts 10 extending vertically downward from both sides thereof,
It has mounting tongues 11 extending from the rear end of the side plate part 10 at right angles to the left and right. The mounting tongue piece 11 is
This is a mounting portion for fixing the main body 8 to the support plate 7 with bolts. There are notches 1 on the front and rear of the placing section 9.
2 and 13 are formed, and a pair of holding members 14 and 14 are mounted inside these notches 12 and 13 so as to face each other so as to be movable in the front and rear directions. The other pair of left and right holding members 15, 15 are provided so as to face the holding members 14, 14 in the orthogonal direction and to be able to penetrate the side plate portion 10 and move in the left-right direction. Each of the holding members 14 and 15 includes a holding plate 16 formed by bending a band plate into an L-shape, and a bolt 17 passing through a vertical contact piece 16a of this holding plate 16. And, in the side plate part 10,
Located in the middle of the front and rear notches 12 and 13,
A circular hole 18 for inserting the bolt 17 and a rectangular hole 1 for inserting the guide piece 16b of the holding plate 16.
9 is formed. On the lower surface of the mounting portion 9, screw receiving pieces 20 for screwing together the bolts 17 of the holding members 14 and 15 are provided protruding from all sides.
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.

[0008] The three insulators 21 are attached to the side plate portions 10 with bolts 24 via a mounting plate 22 and a spacer 23.
is fixed on the outside. That is, as shown in FIG. 3, three holes 25 for inserting bolts 24 are formed in the side plate 10 in two sets, front and rear, spaced vertically from each other, and holes 25 corresponding to the holes 25 are formed in the mounting plate 22. Two elongated holes 26 are formed, through which bolts 24 are inserted and tightened to nuts. The mounting plate 22 has two upper and lower holes 27 for inserting the mounting bolts of each insulator 21.
are formed alternately with the elongated holes 26 at equal intervals.
Therefore, the attachment position of the attachment plate 22 can be changed up or down with respect to the side plate portion 10. Also,
The distance between the side plate portion 10 and the mounting plate 22 can be changed by changing the spacer 23.
Furthermore, the mounting position of the insulator 21 on the mounting plate 22 can be changed to two stages, upper and lower, by selecting the upper and lower bolt insertion holes 27, 27. and,
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.

[0009] However, inside the cubicle
When installing the PCT, the bottom support device 6 is previously fixed to the bottom of the PCT outside the cubicle.
For both cylindrical and box-shaped PCTs,
Screw in the bolt 17 and press the holding members 14 and 15.
Move it and fix it on the mounting part by pressing it against the side of the PCT. Further, 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 attaching the insulator 21, the attachment interval and the upper and lower attachment positions relative to the side plate portion 10 are appropriately selected depending on 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 fixing position of the mounting plate 22 with respect to the side plate portion 10 and adjusting the mounting position of the insulator 21 itself with respect to the mounting plate 22. The attachment interval to the side plate portion 10 is adjusted by selecting the length of the spacer 23. and,
The bottom support device together with the PCT is placed in the cubicle and lifted to various positions using a chain block or the like, and after the upper part is suspended, the mounting portion 11 at the rear of the bottom support device 6 is fixed to the support plate 7 of the cubicle. Next, the cable C is connected to the lead wire W of the PCT, and the vicinity of this connection part is fixed to the insulator 21. Since only the rear part of the bottom support device 6 is connected to the support plate 7 of the cubicle, there are no obstacles such as wiring in the space in front of the door, 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 shaking even in an earthquake or the like.

[0010]

[Effect of the invention] As described above, in the present invention, the horizontal mounting part 9 on which the bottom of the PCT is placed;
Both side plate parts 10 are provided vertically extending downward from both the left and right sides of the placing part 9, and an attachment part 11 to a cubicle provided on the rear side of the placing part 9 is provided. , insulators 21 for fixing the connection portions between the lead wires W extending from the left and right sides of the PCT and the cables C are mounted so that the mounting intervals on the left and right sides and the vertical mounting positions can be changed with respect to the side plate portions 10, respectively. Since the bottom support device 6 of the PCT was configured with
Can be fixed at the bottom of the PCT. Also,
The installation interval and the vertical installation position of the insulator 21 on the left and right sides of the side plate part 10 can be selected as appropriate in accordance with the length of the lead wire W of the PCT and the dimensions of the lower part of the PCT. Work can be carried out smoothly in free space outside the cubicle. In addition, in order to fix the lower part of the PCT, a plurality of holding members 1 are provided on the mounting part 9 of the bottom support device 6 to press down the side surfaces of the lower part of the PCT and prevent it from swinging.
4 and 15 are provided so that the fixed position can be moved according to the size and shape of the PCT, so it can easily accommodate PCTs of various sizes and shapes.
This has the effect of being able to support this reliably.

[Brief explanation of the drawing]

FIG. 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 main body.

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

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

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

FIG. 6 is a perspective view of the box-column type PCT in an attached state.

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

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

[Explanation of symbols]

6...Bottom support device 9...Placement part 10...Side plate part 11...Mounting part 14... Holding member 15... Holding member 21...Insulator C...Cable W...Lead wire PCT...transformer.

Claims (2)

[Scope of utility model registration request] [Claim 1] A device that supports the bottom of an instrument transformer for power supply and demand in a cubicle, comprising: a horizontal mounting part on which the bottom of the transformer is placed; The transformer has both side plate portions extending perpendicularly to the transformer, and a mounting portion to the cubicle provided on the rear side of the mounting portion, and the both side plate portions have lead wires extending from both left and right sides of the transformer. A bottom support device for a transformer, characterized in that an insulator for fixing the vicinity of a connection part with a cable is attached so that the mounting interval on the right and left sides and the vertical mounting position on the side plate part can be changed. [Claim 2] A device that supports the bottom of an instrument transformer for power supply and demand in the cubicle, comprising: a horizontal mounting section on which the bottom of the transformer is placed; and a horizontal mounting section provided on the rear side of the mounting section. A plurality of holding members for holding down the lower side of the transformer to prevent it from swinging are fixed in the mounting part in accordance with the size and shape of the transformer. A bottom support device for a transformer, characterized in that it is provided so that its position can be moved.