JPH08205333A - Metallic enclosed-type switchgear - Google Patents

Abstract

PURPOSE: To provide a compact metallic enclosed-type switchgear wherein a case and a base can be connected with an electric apparatus installed in the interior of the case. CONSTITUTION: A case 11 which has a door 2 installed on its front side is fixed on a base 14. Tap holes 11c are made in the base 14. A rear face fixation board 16 which has tap holes 11d is fixed on the base 14. Through holes 11a, 11b are made in the case 11 and through holes 11e, 11f are made in a front face fixation board 17. The case 11 is mounted on the base 14 and then the front face fixation board 17 is abutted against the case 11 and the base 14. After that, first connection metal fittings 13b are passed through the through holes 11f of the front face fixation board 17 and fixed in the tap holes 11c and second connection metal fittings 13a are passed through the through holes 11e of the front face fixation board 17 and the through holes 11a, 11b of the case and then are fixed in the tap holes 11d of the rear face fixation board 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal closed switchgear installed in a substation.

[0002]

2. Description of the Related Art Generally, in a metal-closed switchgear, a door that can be opened and closed is attached to the front side, and
A rectangular parallelepiped box body in which electric devices are housed is fixed on a foundation base framed in a rectangular shape. FIG. 2 shows an example of a conventional metal closed switchgear,
(A) is a diagram of the box and the base separated.
(B) is a diagram showing a state in which the box body is fixed to the foundation base.

In the figure, a door 2 that can be opened and closed is attached to the front side portion of a box body 1 having an open front surface. An electric device 5 such as a transformer is housed inside the box 1. At four corners of the bottom surface of the box body 1, four through holes 1a through which the connection fittings 3 such as bolts can pass are provided. At four corners of the upper surface of the base base 4 framed in a rectangular shape, four tap holes 1b into which the connection fittings 3 such as bolts are mounted are provided.
The box body 1 is placed on the base base 4, and the four connecting fittings 3 are inserted into the four through holes 1a of the box body 1 and attached to the tap holes 1b of the base base 4 to tighten them. The box 1 is fixed on the base 4.

[0004]

In the above-mentioned conventional metal-closed switchgear, when the box 1 is fixed to the base 4 with the electric equipment 5 housed inside the box 1, the rear side. Since the positions of the through hole 1a and the tap hole 1b are located behind the electric device 5 in the box body 1, an operator enters the box body 1 to cause the connecting fitting 3 to penetrate the through hole 1a to form the tap hole 1b. Cannot be installed. For this reason, it is necessary to carry out the electric device 5 or secure a space in the box body 1 in which a worker can enter the box body 1 to mount the connection fittings 3. Need to be bigger.

Therefore, the present invention provides a metal-closed switchgear that does not need to increase the size of the box body and can fix the box body to the foundation base in a state in which electrical equipment is housed in the box body. The purpose is to

[0006]

[MEANS FOR SOLVING THE PROBLEMS] A metal in which a door that can be opened and closed is attached to the front side, and a rectangular parallelepiped box body in which electric devices are housed is fixed on a foundation base framed in a rectangular shape. In the closed-type switchgear, tap holes are horizontally provided on both sides of the front side of the base, and a back fixing plate having tap holes on both sides is vertically provided on the back side of the base. Stuck,
Through holes are provided in the horizontal direction on both the front and rear sides of the lower part of the box body, and through holes are provided in the upper and lower parts on both side parts of the front fixing plate. It is placed on a foundation base, the front fixing plate is brought into contact with the box body and the front side of the foundation base, and the first connecting metal fitting is passed through a through hole in the lower portion of the front fixing plate to form the foundation. While being mounted in the tap hole of the base, the second connecting metal fitting is passed through the through hole in the upper portion of the front fixing plate and both through holes on the front side and the rear side of the box body to become the tap hole of the rear fixing plate. Installing.

[0007]

In the metal-closed switchgear according to the present invention, the box body is placed on the foundation base, and the front fixing plate is brought into contact with the box body and the front side of the foundation base. The front fixing plate is fixed to the base base by penetrating the through hole in the lower portion of the front fixing plate and attaching the first connecting fitting to the tap hole of the base base. After that, the second connecting metal fitting is inserted into the tap hole of the rear fixing plate by penetrating the through hole in the upper part of the front fixing plate and both the through holes on the front side and the rear side of the box, and the box body It is fixed to the fixed plate and the rear fixed plate.
As a result, the box body is fixed to the base base via the front fixing plate and the back fixing plate. Therefore, it is possible to fix the box body on the base base in a state where the electric device is housed inside the box body and the operator does not enter the inside of the box body. Further, it is not necessary to increase the size of the box body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a metal switchgear according to the present invention. (A) shows a state in which a box and a base are separated, and (B) shows a box as a base. It is a figure which shows the state fixed to. In the figure, tap holes 11c are provided in the horizontal direction (front-rear direction) at both sides on the front side of the basic base 14 framed in a rectangular shape, that is, at two left and right positions. Both sides of the upper part of the rear fixing plate 16,
That is, tap holes 11d are respectively provided at two positions on the left and right, and the lower portions thereof are vertically fixed to the rear surface side of the base 14 by welding or bolts.

An openable and closable door 2 is attached to the front side of a rectangular parallelepiped box body 11, and an electric device 5 is housed inside. The through-holes 1 are horizontally provided at both sides on the front side of the lower part of the box body 11, that is, at two left and right positions.
1a is provided, and through holes 11b are provided in the horizontal direction at both sides on the rear surface side, that is, at two left and right positions. Through-holes 11e are provided in both upper side portions of the front fixing plate 17, that is, in the two left and right locations, and at both lower portions, that is, two left and right locations,
Each through hole 11f is provided.

The through holes 11a, 11b, 11e, 1
The positional relationship between 1f and the tap holes 11c and 11d is that the box body 11 is placed on the foundation base 14 and the front fixing plate 17 is placed.
When contacting the lower part of the front side of the box body 11 and the front side of the foundation base 14, the through holes 11e, 11a, 11b and the tap hole 11d correspond to each other, and the through hole 11f and the tap hole 11c correspond to each other. Set to correspond to each. Further, when the front fixing plate 17 is brought into contact with the front sides of the box body 11 and the base 14 as described above, the front fixing plate 17 does not come into contact with the door 2 and the door 2 does not contact the box body 11.
It can be opened and closed on the front side of. In addition, 13a is a second connecting fitting such as a neck length bolt, and 13b is a first connecting fitting such as a bolt.

Next, the procedure for fixing the metal-closed switchgear of the present invention will be described. In the state shown in FIG. 1A, the box 11 is placed on the base 14, and the front fixing plate 17 is brought into contact with the lower front side of the box 11 and the front side of the base 14. Then, the first connection fitting 13b is inserted from the front side of the box body 11 into the tap hole 11c of the base 14 by penetrating the through hole 11f of the front fixing plate 17. Next, from the front side of the box body 11, the second connection fitting 13a is passed through the through hole 11e of the front fixing plate 17, the through hole 11a and the through hole 11b of the box body 11, and the tap hole 11d of the back fixing plate 16 is formed. Attach to.

After that, the positions of the base 14 and the box 11 are confirmed, and the second connecting fitting 13a and the first connecting fitting 13b are tightened and fixed. As a result, as shown in FIG. 1B, the box body 11 is fixed to the base base 14 via the front fixing plate 17 and the rear fixing plate 16.

[0013]

As is apparent from the above description, according to the present invention, the box body is fixed to the base base from the front side of the box body in a state where the electric device is housed in the box body. You can In this case, when installing the metal-closed switchgear, the back side is usually in close contact with the wall surface, and other equipment is installed on the side surface, so the box base can be installed only from the front side. It is particularly effective that it can be fixed to. Also, since the worker does not have to enter the box,
There is no need to provide a work space for that in the box,
The metal closed switchgear can be made compact.

[Brief description of drawings]

FIG. 1A shows an embodiment of the present invention.
(A) is a diagram of the box and the base separated.
(B) is a diagram of a state in which the box body and the base base are connected.

FIG. 2A shows a conventional example, FIG. 2A is a diagram showing a state where a box body and a base base are separated, and FIG. 2B is a diagram showing a state where the box body and the base base are connected.

[Explanation of symbols]

 5 Electrical Equipment 11 Boxes 11a, 11b, 11e, 11f Through Holes 11c, 11d Tap Holes 13a Second Connection Metal Fittings 13b First Connection Metal Fittings 14 Base Base 16 Back Fixing Plate 17 Front Fixing Plate

Claims (1)

[Claims] 1. A metal-closed switchgear in which a door that can be opened and closed is attached to the front side, and a rectangular parallelepiped box body in which electrical equipment is housed is fixed on a foundation base framed in a rectangular shape. In the both sides on the front side of the base, horizontal tap holes are provided in the horizontal direction, and the back side fixing plate provided with the tap holes on both sides is vertically fixed to the back side of the base base. Through holes are provided in the horizontal direction in the front and back sides of the lower part of the box, and through holes are provided in the upper and lower parts of the front fixing plate, respectively. It is placed on a base, the front fixing plate is brought into contact with the front side of the box body and the base, and the first connecting fitting is passed through a through hole in the lower part of the front fixing plate to form the base base. Attached to the tap hole of In addition, the second connection fitting is attached to the tap hole of the rear fixing plate by penetrating through the through hole in the upper portion of the front fixing plate and both through holes on the front side and the rear side of the box body. Metal closed type switchgear.