JP2023008437A - Switch board and method of mounting intelligent electronic device (ied) on the same - Google Patents

Abstract

To propose a switch board which enables an IED to be mounted thereon efficiently, and to provide a method of mounting the IED on the switch board.SOLUTION: A switch board of an embodiment includes: a first frame; a second frame; and an attachment part. The first frame is disposed at an end part as seen in a width direction, extends in a vertical direction, and has a cutout along an inner edge part as seen in the width direction. The second frame extends in the width direction and is fixed at an end part as seen in the width direction to the first frame and arranged in the vertical direction of the cutout of the first frame. The attachment part is disposed in the vertical direction of an IED and fixed to the second frame.SELECTED DRAWING: Figure 7

Description

Embodiments of the present invention relate to switchboards and methods of mounting IEDs to switchboards.

Power distribution systems such as digital substation systems use switchboards equipped with IEDs (Intelligent Electronic Devices). Switchboards are required to efficiently mount IEDs.

JP-A-2002-335609

The problem to be solved by the present invention is to provide a switchboard and a mounting method of the IED on the switchboard that can efficiently mount the IED.

A switchboard according to an embodiment has a first frame, a second frame, and a mounting portion. The first frame is arranged at the end in the width direction, extends vertically, and has a notch along the inner edge in the width direction. The second frame extends in the width direction, has its width direction end fixed to the first frame, and is arranged in the vertical direction of the notch of the first frame. The mounting portion is arranged in the vertical direction of the IED and fixed to the second frame.

The perspective view of the switchboard of 1st Embodiment. The perspective view of a 1st frame. The perspective view of the switchboard before mounting of IED. The perspective view of a 3rd frame. The perspective view of the back side of a 4th frame. The perspective view of the back side of a switchboard. Explanatory drawing of the mounting method of IED with respect to the switchboard of 1st Embodiment. Explanatory drawing of the mounting method of IED with respect to the switchboard of 2nd Embodiment.

Hereinafter, the switchboard of the embodiment and the mounting method of the IED on the switchboard will be described with reference to the drawings.
FIG. 1 is a perspective view of the switchboard of the first embodiment. In this application, the X direction, Y direction and Z direction of the orthogonal coordinate system are defined as follows. The X direction is the width direction of the switchboard 100 . The center side of the switchboard 100 in the X direction may be called the inside in the X direction, and the side opposite to the center may be called the outside in the X direction. The Y direction is the depth direction of the switchboard 100 . The +Y direction is the rearward direction of the switchboard 100 (the direction from the front to the rear). The Z direction is the up-down direction (vertical direction), and the +Z direction is the up direction.

An IED (Intelligent Electronic Device) 1 is mounted on the switchboard 100 . The IED 1 is equipped with a plurality of DIO (digital input/output) boards. The DIO board is inserted into the board slot inside the IED 1 from the front of the IED 1 in the -Y direction. The front of the IED 1 after insertion of the DIO board is covered with a cover. The IED 1 functions as a control terminal, protection terminal, or the like. The control terminal measures the current or voltage of the electric power system, and outputs and controls operating signals for circuit breakers, disconnectors, and the like. The protection terminal outputs an operation signal for a circuit breaker or the like to protect the power system.

According to EIA/ECA-310-E of EIA/ECA standards, 19 inches is standard for the length of the IED1 in the X direction (the length in the X direction including the flanges attached to the ±X surfaces of the case 2). there is As the IED 1, 3/4 type, 1/2 type, 1/3 type and 1/6 type are prepared in addition to 1/1 type having a length of 19 inches in the X direction.

On the other hand, the length in the X direction of a standard switchboard installed in a substation or the like in Japan is 350 mm or 700 mm. The length of the switchboard in the X direction is the outer space in the X direction of the first frame 10 arranged at the end in the X direction. EIA/ECA-310-E compliant IEDs 1 are required to be efficiently mounted on these switchboards.

(First embodiment)
In the first embodiment, a 3/4 type IED 1 is mounted on a switchboard 100 having a length of 350 mm in the X direction. The arrangement of the IEDs 1 in the switchboard 100 is two rows in the Z direction and one column in the Y direction. The arrangement of the IEDs 1 may be one row in the Z direction, or may be three or more rows in the Z direction.
The switchboard 100 includes a first frame 10, a second frame 20, a third frame 30, a fourth frame 40 (see FIG. 7), an IED 1, a mounting portion 50, and a front panel 60 (see FIG. 7). , has

FIG. 2 is a perspective view of the first frame.
The first frame 10 is arranged at the end in the X direction. A pair of first frames 10a and 10b are arranged at both ends in the X direction. The first frame 10 extends in the Z direction. The first frame 10 has a first plate 11 and a second plate 12 . The first plate 11 is parallel to the XZ plane, and the second plate 12 is parallel to the YZ plane. The first plate 11 extends inward in the X direction from the -Y direction end of the second plate 12 . The first frame 10 has a cutout 16 . The notch 16 is formed along the inner edge in the X direction of the first plate 11 of the first frame 10 . Notch 16 extends in the Z direction. The length of the notch 16 in the Z direction is greater than the length of the case 2 of the IED 1 in the Z direction. The sum of the X-direction opening width F1 (see FIG. 1) of the first frame 10 and the X-direction length of the pair of notches 16 is greater than the X-direction length C of the case 2 .

FIG. 3 is a perspective view of the switchboard before mounting the IED.
The second frame 20 extends in the X direction. A cross section perpendicular to the X direction of the second frame 20 is formed in a U shape with an opening in the +Y direction. The second frame 20 is arranged in the ±Z direction of the notch 16 of the first frame 10 . The second frame 20 is arranged adjacent to the first plate 11 of the first frame 10 in the +Y direction. The second frame 20 is arranged inside the pair of first frames 10a and 10b in the X direction. The X-direction end of the second frame 20 is fixed to the first plate 11 and the second plate 12 of the first frame 10 by welding. The X-direction end of the second frame 20 may be fixed to the first frame 10 by a method other than welding. The second frame 20 increases the rigidity of the switchboard 100 . The second frame 20 increases the seismic strength of the switchboard 100 .

The second frame 20 has an inner second frame 21 and an outer second frame 22 . As shown in FIG. 1, the second inner frame 21 is arranged inside in the Z direction of the IEDs 1 arranged in the Z direction. The second outer frame 22 is arranged outside in the Z direction of the IEDs 1 arranged in the Z direction. As shown in FIG. 3, the length of the inner second frame 21 in the Z direction is about twice the length of the outer second frame 22 in the Z direction.

The third frame 30 extends in the Z direction. The third frame 30 is arranged inside the first frame 10 in the X direction. A pair of third frames 30a and 30b are arranged inside the pair of first frames 10a and 10b in the X direction. The third frame 30 is arranged in the +Y direction of the second frame 20 . The third frame 30 is arranged in the middle part of the first frame 10 in the Y direction.

4 is a perspective view of the third frame 30. FIG. The third frame 30 has a first plate 31 and a second plate 32 . The first plate 31 is parallel to the XZ plane, and the second plate 32 is parallel to the YZ plane. The first plate 31 extends inward in the X direction from the -Y direction end of the second plate 32 . The second plate 32 of the third frame 30 is fixed to the second plate 12 of the first frame 10 (see FIG. 3). The third frame 30 has cutouts 36 . The notch 36 is formed along the inner edge in the X direction of the first plate 31 of the third frame 30 . Notch 36 extends in the Z direction. The length of the notch 36 in the Z direction is greater than the length of the case 2 of the IED 1 in the Z direction. As shown in FIG. 3 , the position of the notch 36 of the third frame 30 in the Z direction is the same as the notch 16 of the first frame 10 . The sum of the X-direction opening width of the third frame 30 and the X-direction length of the pair of notches 36 is greater than the X-direction length of the case 2 .

The fourth frame 40 extends in the X direction. The fourth frame 40 is arranged in the −Z direction of the notch 36 of the third frame 30 . The fourth frame 40 is arranged inside the third frame 30 in the X direction.
FIG. 5 is a perspective view of the rear side of the fourth frame 40. FIG. The fourth frame 40 has a first plate 41 and a second plate 42 . The first plate 41 is parallel to the XZ plane, and the second plate 42 is parallel to the XY plane. The second plate 42 extends in the -Y direction from the +Z direction end of the first plate 41 . The length of the second plate 42 in the X direction is smaller than the distance between the inner edges of the third frame 30 (see FIG. 3) in the X direction.

FIG. 6 is a perspective view of the rear side of the switchboard. FIG. 6 illustrates a state in which a part of the switchboard in the +Y direction is cut. The X-direction end of the fourth frame 40 is fixed to the third frame 30 by screwing. The X-direction end of the fourth frame 40 may be fixed to the third frame 30 by a method other than screwing. The fourth frame 40 increases the rigidity of the switchboard 100 . The fourth frame 40 suppresses vibration of the switchboard 100 during transportation. The fourth frame 40 abuts on the -Z surface of the case 2 of the IED1.

FIG. 7 is an explanatory diagram of a mounting method of the IED on the switchboard of the first embodiment.
The attachment part 50 is fixed to the ±Z plane of the case 2 of the IED 1 by screwing or the like. The mounting portion 50 has a flange 51 extending in the ±Z directions. A flange 51 of the mounting portion 50 fixed to the +Z surface of the case 2 extends from the case 2 in the +Z direction. A flange 51 of the mounting portion 50 fixed to the -Z surface of the case 2 extends from the case 2 in the -Z direction. The flange 51 is arranged at the end of the case 2 in the -Y direction. The flange 51 is parallel to the XZ plane. The X-direction length of the flange 51 is smaller than the X-direction opening width of the first frame 10 . The length of the flange 51 in the Z direction is smaller than the length of the outer second frame 22 in the Z direction.

The case 2 of the IED 1 is inserted in the +Y direction from the front of the switchboard 100 in the -Y direction into the regions inside the first frame 10 in the X direction and inside the second frame 20 in the Z direction. The outer end of the case 2 in the X direction is arranged inside the notch 16 of the first frame 10 and the notch 36 of the third frame 30 . The notch 16 and the notch 36 prevent interference between the outer end of the case 2 in the X direction and the first frame 10 and the third frame 30 . The −Z surface of the case 2 is supported by the second frame 20 and the fourth frame 40. FIG. The flange 51 is fixed to the -Y plane of the second frame 20 by screwing.

A plurality of IEDs 1 are individually mounted on the switchboard 100 . Each IED 1 can be pulled out individually by removing the screwing of the flange 51 to the second frame 20 . Thereby, each IED1 can be maintained individually.

The front panel 60 is parallel to the XZ plane. The front panel 60 has an inner front panel 61 and an outer front panel 62 . The inner front panel 61 is arranged inside in the Z direction of the IEDs 1 aligned in the Z direction. The outer front panel 62 is arranged outside in the Z direction of the IEDs 1 aligned in the Z direction. The lengths of the front panel 60 in the X and Z directions are the same as those of the second frame 20 . The front panel 60 is arranged on the opposite side of the second frame 20 with the flange 51 and the first frame 10 interposed therebetween. The front panel 60 is fixed to the first frame 10 and the second frame 20 by screwing. Front panel 60 increases the rigidity of switchboard 100 .

A plurality of switchboards 100 may be connected in the X direction. A plurality of switchboards 100 are connected by inserting fastening members into the through holes 18 of the first frame 10 . The through hole 18 is formed in the second plate 12 of the first frame 10 and penetrates the first frame 10 in the X direction. The through holes 18 are formed at both ends of the first frame 10 in the Y direction. The through-hole 18 in the -Y direction may be blocked by the case 2 of the IED 1, making it difficult to insert the fastening member into the through-hole 18. A new through hole 19 is formed through the first frame 10 in the X direction. The through hole 19 is formed in the +Y direction of the second frame 20 . Since the IED 1 and the second frame are alternately arranged in the Z direction, the through hole 19 is not blocked by the IED 1 . A plurality of switchboards 100 are connected by inserting fastening members into new through holes 19 and through holes 18 in the +Y direction.

The mounting method of IED1 with respect to the switchboard 100 is demonstrated.
As shown in FIG. 2, the first frame 10 of the switchboard 100 is formed with a notch 16 along the inner edge in the X direction. The length of the notch 16 in the Z direction is greater than the length of the case 2 of the IED 1 in the Z direction. As shown in FIG. 3, the second frame 20 extending in the X direction is arranged in the ±Z direction of the notch 16 . The X-direction end of the second frame 20 is fixed to the first frame 10 .

A notch 36 is formed along the inner edge in the X direction in the third frame 30 of the switchboard 100 . The length of the notch 36 in the Z direction is greater than the length of the case 2 of the IED 1 in the Z direction. A fourth frame 40 extending in the X direction is arranged in the -Z direction of the notch 36 . The X-direction end of the fourth frame 40 is fixed to the third frame 30 .

As shown in FIG. 7 , the mounting portion 50 is fixed to the ±Z plane of the case 2 of the IED 1 . The case 2 of the IED 1 is inserted into the inner region of the first frame 10 in the X direction and the inner region of the second frame 20 in the Z direction. A flange 51 of the mounting portion 50 is fixed to the second frame 20 . A front panel 60 is fixed to the first frame 10 and the second frame 20 . By the above, mounting of IED1 with respect to the switchboard 100 is completed.

As detailed above, the switchboard 100 of the embodiment has the first frame 10 , the second frame 20 , and the mounting portion 50 . The first frame 10 is located at the end in the X direction, extends in the Z direction and has a notch 16 along the inner edge in the X direction. The second frame 20 extends in the X direction, has an end in the X direction fixed to the first frame 10 , and is arranged in the ±Z direction of the notch 16 of the first frame 10 . The mounting portion 50 is arranged in the ±Z direction of the IED 1 and fixed to the second frame 20 .

The length of the case 2 of the IED 1 in the X direction is greater than the opening width of the first frame 10 in the X direction. In the switchboard 100 of the embodiment, the case 2 of the IED 1 is arranged inside the first frame 10 in the X direction because the first frame 10 has the notch 16 . The IED 1 on which many DIO boards are mounted is efficiently mounted on the switchboard 100. - 特許庁

Forming the notch 16 in the first frame 10 makes it difficult to fix the IED 1 to the first frame 10 . In the switchboard 100 of the embodiment, the attaching portion 50 of the IED 1 arranged in the ±Z direction is fixed to the second frame 20 arranged in the ±Z direction of the notch 16 . Thereby, the IED 1 is fixed to the switchboard 100 .

The switchboard 100 has a third frame 30 and a fourth frame 40 . The third frame 30 is located in the +Y direction of the second frame 20, extends in the Z direction and has a notch 36 along the inner edge in the X direction. The fourth frame 40 extends in the X direction, has an end in the X direction fixed to the third frame 30 , and is arranged in the −Z direction of the notch 36 of the third frame 30 .

Since the 3rd frame 30 has the notch 36, the case 2 of IED1 is arrange|positioned inside the 3rd frame 30 of the X direction. Since the fourth frame 40 is arranged in the -Z direction of the notch 36, the -Z surface of the IED 1 is supported by the second frame 20 and the fourth frame 40. FIG. This facilitates the work of fixing the mounting portion 50 to the second frame 20 .

The second frame 20 is fixed to the first frame 10 by welding.
This increases the rigidity of the switchboard 100 .

The attachment part 50 is fixed to the ±Z plane of the IED 1 and has a flange 51 extending in the Z direction.
The mounting portion 50 is fixed to the second frame 20 by a flange 51 .

The first frame 10 has a through hole 19 extending through the first frame 10 in the +Y direction of the second frame 20 in the X direction.
The second frames 20 and IEDs 1 are alternately arranged in the Z direction. The through hole 19 formed in the +Y direction of the second frame 20 is not blocked by the IED 1 . A plurality of switchboards 100 are connected in the X direction by inserting fastening members into the through holes 19 .

(Second embodiment)
FIG. 8 is an explanatory diagram of a mounting method of the IED on the switchboard of the second embodiment.
In the second embodiment, a 3/4 type IED 1 is mounted on a switchboard 200 having a length of 700 mm in the X direction. The arrangement of the IEDs 1 in the switchboard 200 is two rows in the Z direction and two columns in the Y direction. The arrangement of the IEDs 1 may be one row in the Z direction, or may be three or more rows in the Z direction. Descriptions of the second embodiment that are the same as those of the first embodiment may be omitted.

Cases 2 of two IEDs 1 are arranged side by side in the X direction inside the first frame 10 in the X direction. The outer ends of the cases 2 of the two IEDs 1 in the X direction are arranged inside the cutout 16 of the first frame 10 and the cutout 36 of the third frame 30 . The sum of the X-direction opening width F2 of the first frame 10 and the X-direction length of the pair of cutouts 16 is the X greater than the direction length. The sum of the width of the opening of the third frame 30 in the X direction and the length of the pair of notches 36 in the X direction is the X direction of the cases 2 of the two IEDs 1 arranged inside the third frame 30 in the X direction. greater than the length of

The front panel 70 is parallel to the XZ plane. The front panel 70 is formed in the shape of a square frame. The length of the opening 75 of the front panel 70 in the X direction is the same as the interval in the X direction of the first frame 10 at the portion where the notch 16 is formed. The Z-direction length of the opening 75 of the front panel 70 is the same as the Z-direction spacing of the second frames 20 . Two IEDs 1 arranged in the X direction are exposed in the -Y direction from the opening 75 of the front panel 70 . The front panel 70 is arranged in the -Y direction of the first frame 10 and the flange 51 . The front panel 70 is fixed to the first frame 10 and the second frame 20 by screwing. Front panel 70 increases the rigidity of switchboard 200 .

As described above, in the switchboard 200 of the second embodiment, the IEDs 1 are arranged side by side between the first frames 10 .
The length in the X direction when the cases 2 of the multiple IEDs 1 are arranged in the X direction is larger than the opening width of the first frame 10 in the X direction. In the switchboard 200 , the first frame 10 has the notch 16 , so the cases 2 of the multiple IEDs 1 are arranged inside the first frame 10 in the X direction. A plurality of IEDs 1 mounted with many DIO boards are efficiently mounted on the switchboard 200 .

According to at least one embodiment described above, by having the notch 16 of the first frame 10, the IED 1 can be efficiently mounted on the switchboard.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1...IED, 2...Case, 10...First frame, 16...Notch, 19...Through hole, 20...Second frame, 30...Third frame, 36...Notch, 40...Fourth frame, 50...Installation Part 51... Flange 100, 200... Switchboard.

Claims (6)

a first frame disposed at an end in the width direction, extending in the vertical direction, and having a notch along the inner edge in the width direction;
a second frame extending in the width direction, having ends in the width direction fixed to the first frame, and arranged in the vertical direction of the notch of the first frame;
a mounting portion arranged in the vertical direction of the IED and fixed to the second frame;
switchboard. a third frame disposed behind the second frame, extending vertically, and having a notch along the inner edge in the width direction;
a fourth frame that extends in the width direction, has an end portion in the width direction fixed to the third frame, and is arranged below the notch of the third frame;
The switchboard according to claim 1. The mounting portion is fixed to the upper and lower surfaces of the IED and has a flange extending in the vertical direction,
The switchboard according to claim 1 or 2. The first frame has a through-hole penetrating the first frame in the width direction behind the second frame,
The switchboard according to any one of claims 1 to 3. The IEDs are arranged side by side between the first frames.
The switchboard according to any one of claims 1 to 4. forming a notch along the inner edge in the width direction in a vertically extending first frame disposed at the end in the width direction of the switchboard;
the second frame extending in the width direction is arranged in the vertical direction of the notch of the first frame and fixed to the first frame;
fixing the mounting portion arranged in the vertical direction of the IED to the second frame;
A method of mounting an IED on a switchboard.

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