JP2007097340A - Distribution panel and construction method for replacing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution panel easily replaced even if a space for installing a new distribution panel can not be reserved in a distribution panel room and a system is not allowed to halt for a long time, and to provide a construction method for replacing the distribution panel. <P>SOLUTION: The distribution panel is rectangular, and has vertical movement mechanisms attached to four corners at a bottom and vertically moving the distribution panel as a horizontal state at the bottom of the distribution panel is maintained, and a drive mechanism for driving the vertical movement mechanisms at the bottom of the distribution panel. The construction method for replacing the existing distribution panel with the new distribution panel comprises a step for raising the existing distribution panel at an installed location, a step for switching a cable connected to the raised existing distribution panel to the temporarily installed new distribution panel, a step for removing the existing distribution panel, and a step for moving the temporarily installed new distribution panel to a space made by removing the existing distribution panel. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a so-called switchboard such as a protective relay panel or a remote monitoring control panel, and more particularly to a structure of a switchboard and a replacement method that can easily replace an existing switchboard with a new switchboard.

Conventionally, so-called switchboards such as protective relay panels and remote monitoring control panels have been frequently used in power systems. Such switchboards are known in various structures, and improvements are frequently made. For example, there is known a switchboard in which an inner frame is housed inside an outer frame, and vibration-proof rubber interposed in a gap between the outer frame and the inner frame can be easily replaced (Patent Document 1).
JP 2002-281616 A

  By the way, this type of switchboard needs to be replaced due to aging. When replacing the existing switchboard installed in the switchboard room with a new switchboard, install the new switchboard in a separate location from the existing switchboard in the switchboard room, and connect the cables connected to the existing switchboard. Then, a method of sequentially switching from the existing switchboard to the new switchboard is adopted. If the system can be stopped for a long time, the existing switchboard is removed, and a new switchboard is installed at the same location to connect the cables.

  For this reason, when the switchboard room is small and a space for installing a new switchboard cannot be secured, or when the system cannot be stopped for a long time, it has been difficult to replace the switchboard.

  The present invention has been made in view of the above problems, and can be easily replaced even when a space for installing a new switchboard in the switchboard room cannot be secured, or even when the system cannot be stopped for a long time. The purpose is to provide a switchboard that can be used and its replacement method.

  In order to solve the above problems, the distribution board proposed by the present invention is a rectangular parallelepiped distribution board, and a vertical movement mechanism for moving the distribution board up and down while maintaining the horizontal state of the bottom of the distribution board is attached to the four corners of the bottom. In addition, a drive mechanism for driving the vertical movement mechanism is provided in the lower part of the switchboard.

  As described above, since the vertical movement mechanism for moving the switchboard up and down while maintaining the horizontal state of the bottom of the switchboard is attached to the four corners of the bottom of the switchboard, the switchboard is located at the bottom of the switchboard at the installed position. It is possible to switch the cable when replacing the existing switchboard with a new switchboard by using the space generated by the lift by lifting the switchboard by about 20 cm while maintaining the horizontal state of the cable. it can. Therefore, even when a space for installing a new switchboard in the switchboard room cannot be secured, or even when the system cannot be stopped for a long time, the replacement can be easily performed.

  In the switchboard of the present invention, the vertical movement mechanisms attached to the four corners of the bottom of the switchboard are screwed to the four nuts respectively attached to the four corners of the bottom of the switchboard, and vertically. And four bolts that rotate about each central axis.

  The drive mechanism for driving the vertical movement mechanism extends in the horizontal direction and is screwed with the two bolts respectively screwed into the two nuts attached to one side of the bottom four corners of the switchboard. The first screw housing rotating around the central axis, and the other two screws extending in the horizontal direction and screwed to the two nuts attached to the other side of the bottom four corners of the switchboard A second screw housing that rotates about the central axis, and extends in the horizontal direction, and is screwed into the first screw housing and the second screw housing at both ends, respectively. It can comprise a third screw housing that rotates about an axis and a rotational drive mechanism that rotates the third screw housing about its central axis.

  As a rotational drive mechanism for rotating the third screw rod about its central axis, for example, the tip of the handle is inserted from the outside into a drive portion screwed to the central portion of the third screw rod, By rotating the handle around its central axis, a rotation drive mechanism that rotates the third screw rod around its central axis can be employed.

  By adopting a vertical movement mechanism having such a configuration and a drive mechanism for driving the vertical movement mechanism, for example, the front end of the handle constituting the rotation drive mechanism is screwed to the central portion of the third screw housing. The third screw housing is rotated about its central axis by inserting it into the drive unit and rotating the handle about its central axis, whereby the second screw housing and the third screw The chassis is synchronized and rotated around each central axis, and the four bolts screwed into the four nuts respectively attached to the four corners of the bottom of the switchboard are synchronized to each central axis. The switchboard can be moved up and down while maintaining the horizontal state of the bottom of the switchboard. For example, at the position where the switchboard is installed, the switchboard can be lifted upward by about 20 cm while maintaining the horizontal state of the bottom of the switchboard, that is, can be raised by about 20 cm.

  Next, in order to solve the above-mentioned problem, the switchboard replacement method proposed by the present invention is a method of replacing the existing switchboard with a new switchboard, and raising the existing switchboard upward at the position where the switchboard is installed. A step of replacing the cable connected to the existing switchboard raised upward, a step of removing the existing switchboard, a step of removing the existing switchboard, and a step of replacing the temporarily installed switchboard with the existing switchboard It is characterized by comprising the step of moving to a vacant space by the removal of.

  According to such a switchboard replacement method, at the position where the switchboard is installed, the switchboard is lifted upward by about 20 cm, i.e., raised by about 20 cm, and the existing switchboard is renewed using the space generated by the lifting. It is possible to switch the cable when replacing the switchboard. Therefore, even when a space for installing a new switchboard in the switchboard room cannot be secured, or even when the system cannot be stopped for a long time, the replacement can be easily performed.

  In the switchboard replacement method of the present invention, as described above, the switchboard can be lifted upward while maintaining the horizontal state of the bottom of the switchboard at the position where the switchboard is installed, that is, the switchboard can be raised. Can be used.

  That is, in the above-described switchboard replacement method of the present invention, the switchboard has a rectangular parallelepiped shape, and a vertical movement mechanism that moves the switchboard up and down while maintaining the horizontal state of the bottom of the switchboard is attached to the four corners of the bottom. In addition, the step of raising the existing switchboard upward using a drive mechanism that drives the vertical switch mechanism is provided at the lower part of the switchboard, the drive mechanism and the vertical movement mechanism, The switchboard can be lifted vertically upward while maintaining the horizontal state at the bottom.

  The switchboard replacement method according to the present invention includes a step of raising the existing switchboard upward at the position where the switchboard is installed, and a new cable that is temporarily connected to the existing switchboard raised upward. It is characterized by comprising the steps of switching the connection to the switchboard, removing the existing switchboard, and transferring the temporary new switchboard to an empty space by removing the existing switchboard. The existing switchboard can be raised upward at the position where the switchboard is installed by using a lifting means such as a known jack.

 In the above-described switchboard and switchboard replacement method according to the present invention, as an embodiment of the switchboard, there is one in which a protective relay, a remote monitoring control device, and the like are housed in a rectangular parallelepiped box.

  According to the switchboard and switchboard replacement method of the present invention, the vertical movement mechanism that moves the switchboard up and down while maintaining the horizontal state of the bottom of the switchboard is attached to the four corners of the bottom of the switchboard. In the position where the bottom of the switchboard is kept in a horizontal position, it can be lifted upward by about 20 cm, that is, it can be raised by about 20 cm.

  Therefore, by using the space generated by the raising, it is possible to switch the cable when the existing switchboard is replaced with a new switchboard. That is, by pulling out the cable that was connected to the existing switchboard in the lower space generated by raising the height, and switching the cable to the new switchboard that was temporarily installed at any place in the switchboard room, Operation can be easily switched to a new switchboard. Then, after the switching is completed, the switchboard replacement work can be completed by removing the existing switchboard and moving the switchboard newly installed in the space vacated by the removal from the temporary position. That is, there is an effect that the switchboard can be easily replaced even when the switchboard room is narrow and a space for installing the new switchboard cannot be secured, and even when the system cannot be stopped for a long time.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 and 2 show the lower part of the box 11 in the switchboard 10 of the present invention in which a protective relay or a remote monitoring control device (both not shown) is accommodated in a rectangular box 11.

  That is, FIG. 1 and FIG. 2 explain a vertical movement mechanism attached to the lower part of the box 11 and a drive mechanism for driving the vertical movement mechanism. FIG. 1 is a front view and FIG. 2 is a plan view. It is. In FIG. 1, the handle constituting the rotary drive mechanism in which the tip is inserted into the drive portion screwed into the central portion of the third screw housing is shown in a perspective view for simplicity of explanation. Yes.

  Nuts 12 are fixed to the bottom four corners of the box 11, and bolts 13 are screwed into the nuts 12. In the illustrated embodiment, as described above, the four nuts respectively attached to the four corners of the bottom of the box 11 and the nuts are screwed together, extend in the vertical direction, and rotate around the respective central axes. The vertical movement mechanism attached to the four corners of the bottom of the switchboard 10 is constituted by the four bolts.

  In the illustrated embodiment, the driving mechanism 14 that drives the vertical movement mechanism extends in the horizontal direction and is screwed into two nuts 12 attached to one side of the bottom four corners of the box 11. The first screw housing 15 that is screwed with the two bolts 13 and rotates around the central axis, also extends in the horizontal direction, and is attached to the other side of the bottom four corners of the box 11. A second screw housing 16 that rotates about the central axis, and a first screw housing 15 that extends in the horizontal direction. And a third screw housing 17 that is screwed into both ends of the second screw housing 16 and rotates around the central axis, and a rotation drive mechanism that rotates the third screw housing 17 around the central axis. It is composed of

 Further, in the illustrated embodiment, as a rotational drive mechanism for rotating the third screw housing 17 around its central axis, a drive unit 19 screwed into the central portion of the third screw housing 17 is externally connected. A mechanism for inserting the tip of the handle 18 and rotating the third screw housing 17 about its central axis by rotating the handle 18 about its central axis as shown by arrows 40a and 40b (FIG. 2). Is adopted.

In the illustrated embodiment, the distal end of the handle 18 is inserted into a drive unit 19 screwed into the center of the third screw housing 17, and the handle 18 is centered as shown by arrows 40a and 40b in FIG. By rotating around the axis, the third screw housing 17 is rotated around its central axis. As a result, the second screw housing 15 and the third screw housing 16 are synchronized and rotated around their respective central axes, and screwed into the four nuts 12 respectively attached to the bottom four corners of the box 11. The four bolts 13 are rotated around their respective central axes in synchronization. Thus, while maintaining the horizontal state of the bottom of the switchboard 10, the switchboard 10 is moved up and down as indicated by arrows 41 a and 41 b (FIG. 1), for example, at the position where the switchboard 10 is installed, the bottom of the switchboard 10. While maintaining the horizontal state of the switchboard, it can be lifted upward by about 20 cm, that is, it can be lifted by about 20 cm. Next, installation and replacement of the switchboard 10 configured as described above in the switchboard room 30 will be described with reference to FIGS. This will be described with reference to FIG. FIG. 3 is a layout diagram of the switchboard room 30, and FIG. 4 is a front view illustrating replacement of the switchboard 10. In each figure, 10 is an existing switchboard, and 10A is a new switchboard.

  In the embodiment shown in FIG. 3, five switchboards (existing) 10 are installed side by side in the switchboard room 30. The replacement work starts by temporarily installing the newly installed switchboard 10A near the existing switchboard 10 to be replaced.

  First, the existing switchboard 10 to be replaced is raised. As described above, the raising is performed by inserting the handle 18 from the front of the bottom of the box 11 constituting the target switchboard 10 and operating the drive mechanism 14 to install the bolts installed at the bottom four corners of the box 11. This is done by protruding 13 downward. In FIG. 4, the existing switchboard 10 to be replaced is shown in a raised state.

  Next, the connection of the cable 20 exposed to the lower space by the raising of the switchboard 10 to the existing switchboard 10 is disconnected, and the connection of the cable 20 is replaced with the newly installed switchboard 10A placed at the temporary position. At this stage, the work of the electrical system in the replacement work is completed, and the operation can be switched to the operation of the newly installed switchboard 10A.

  After the connection change of the cable 20 is completed, the existing switchboard 10 can be removed to the outside, and the new switchboard 10A can be moved to a space vacated by the removal to complete the replacement work.

  Thus, even if it is not possible to secure a space for arranging the newly installed switchboard 10A in the switchboard room 30, the switchboard 10 according to the embodiment can be easily replaced. In addition, since the connection of the cable 20 can be changed easily and in a short time, it is possible to cope with a system that does not allow a long-time stoppage.

It is a front view explaining the switchboard of this invention, Comprising: A front view explaining the mechanism which drives a vertical movement mechanism and the said vertical movement mechanism with which one part was abbreviate | omitted and provided in the bottom part. The top view explaining the mechanism which drives the up-and-down moving mechanism with which the bottom part of the switchboard of this invention is equipped, and the said up-and-down moving mechanism. It is a figure explaining the replacement construction method of the switchboard of this invention, Comprising: The top view explaining the state by which switchboard replacement is performed in the switchboard room in which the some switchboard is installed. The front view explaining the state by which the existing switchboard to remove was raised in the construction method of the switchboard of this invention.

Explanation of symbols

10, 10A Switchboard 11 Box 12 Nut 13 Bolt 14 Drive mechanism 15 First screw housing 16 Second screw housing 17 Third screw housing 18 Handle 19 Drive unit 20 Cable 30 Switchboard room

Claims (4)

  A rectangular parallelepiped distribution board, and a vertical movement mechanism that moves the distribution board up and down while maintaining the horizontal state of the distribution board at the four corners of the bottom, and a drive mechanism that drives the vertical movement mechanism Is provided at the bottom of the switchboard. The vertical movement mechanism attached to the four corners of the bottom of the switchboard is
Four nuts attached to the four corners of the bottom of the switchboard,
It consists of four bolts that are screwed into each nut, extend in the vertical direction, and rotate around each central axis.
The drive mechanism that drives the vertical movement mechanism is
A first extending in the horizontal direction and screwed with the two bolts respectively screwed into two nuts attached to one side of the bottom four corners of the switchboard, and rotated around the central axis A screw housing;
A second screw that extends horizontally and is screwed with the other two bolts respectively screwed into two nuts attached to the other side of the bottom four corners of the switchboard, and rotates around the central axis. A second screw housing,
A third screw housing extending in the horizontal direction, screwed into both ends of the first screw housing and the second screw housing, respectively, and rotating around a central axis;
The switchboard according to claim 1, further comprising: a rotation drive mechanism that rotates the third screw housing around its central axis. In the method of replacing existing switchboards with new switchboards,
Raising the existing switchboard upwards at the installed position; and
Changing the connection of the cable connected to the existing switchboard raised upward to the newly installed switchboard;
Removing existing switchboards;
A method of replacing a distribution board, characterized by comprising the step of moving a temporary new distribution board to an empty space by removing the existing distribution board. The switchboard has a rectangular parallelepiped shape, and is provided with a vertical movement mechanism that moves the switchboard up and down while maintaining the horizontal state of the bottom of the switchboard at the four corners of the bottom, and a drive mechanism that drives the vertical movement mechanism Is provided at the bottom of the switchboard,
The step of raising the existing switchboard upward is
The switchboard replacement method according to claim 3, wherein the switchboard is lifted vertically upward by the drive mechanism and the vertical movement mechanism while maintaining the horizontal state of the bottom of the switchboard.

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