JPH11318009A - Metal-enclosed switchgear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the assembly workability of a cubicle, reduce the assembly time of the cubicle, and furthermore, reduce cost through the mass-production. SOLUTION: A frame 14 in which a plurality of electric apparatuses 1, a plurality of main circuit conductors 2 and a plurality of support insulators 3 are housed, a control frame 14a which is provided on the front side of the frame 14 and in which a movable door 6 to which monitoring apparatuses 5 are attached and an appliance board 8 to which terminal blocks 19 are attached are housed, a back frame 14b which is provided on the back side of the frame 14 and has a back door 17 which is openable on its back side and a roof frame 14c which is provided on the top side of the frame 14 and has a roof plate 9 on its upper part are provided. The control frame 14a, the back frame 14b and the roof frame 14c are attached to the frame 14 with bolts 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a metal-closed switchgear installed in a substation.

[0002]

2. Description of the Related Art FIGS. 2A and 2B show an example of a conventional metal-closed switchgear. FIG. 2A is a front view and FIG. 2B is a side view. An electric device 1 such as a draw-out circuit breaker, and a support insulator 3 to which a main circuit conductor 2 connected to the electric device 1 is attached,
It is stored and fixed in one frame 4. A movable door 6 to which a monitoring device 5 is attached and an instrument plate 8 to which a terminal block 10 is attached are attached to a front side inside the frame 4.

A front door 7a and a rear door 7b, which can be opened and closed, are attached to the front and rear sides of the frame 4, respectively, and a roof panel 9 is attached to the upper part of the frame 4.

[0004]

In the above-described conventional metal-closed switchgear, the front door 7a, the rear door 7b, the instrument plate 8, the movable door 6, the electric equipment 1, the main circuit conductor 2 and the support insulator 2 are composed of: Because it is attached to the same frame 4,
A plurality of assemblers cannot perform assembling work at the same time, and it takes time to assemble. Also, since all the devices are assembled with the frame 4 upright, it is necessary to assemble the device at a high place or in a poor working posture, which takes time.

[0005] Furthermore, since the indoor installation type and the outdoor installation type do not require a waterproof structure, the front door 7 is not required.
a, the back door 7b and the roof plate 9 have different structures. For this reason, the shape of the frame 4 also needs to be different.
Since it is necessary to manufacture the frame 4 for each type, mass production is not possible.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a metal-closed switchgear which has a good assembling workability of a box, can reduce an assembling time, and can reduce the cost by mass production. .

[0007]

A metal-closed switchgear according to the present invention has a frame in which electric equipment, a main circuit conductor and a supporting insulator are housed, and is disposed on the front side of the frame, and can be opened and closed on the front side. Frame with a front door attached, a movable door to which a monitoring device is attached, and a control plate in which an instrument plate to which a terminal block is attached are respectively installed inside, and a rear door that is arranged on the back side of the frame and can be opened and closed on the back. A back frame having a back frame attached thereto and a roof frame disposed on the upper surface side of the frame and having a roof panel attached to an upper portion thereof, wherein the control frame, the back frame, and the roof frame are bolted to the frame. A box is formed.

In the above-described metal-closed switchgear of the present invention, the box body is divided into a frame, a control frame, a rear frame, and a roof frame, so that the division and parallel work can be performed, and the assembling time can be reduced. . Also, the frame can be shared between the outdoor installation type and the indoor installation type, and the cost can be reduced by mass production.

[0009]

FIG. 1 shows an embodiment of a metal-closed switchgear according to the present invention. FIG. 1 (A) is a front view and FIG. 1 (B) is a side view. An electric device 1 such as a draw-out circuit breaker and a supporting insulator 3 to which a main circuit conductor 2 connected to the electric device 1 is attached are fixed in a frame 14 formed in a substantially rectangular parallelepiped shape.

A control frame 14a in which a front door 17a which can be opened and closed is mounted on the front, and a movable door 6 on which the monitoring device 5 is mounted and an instrument plate 8 on which a terminal block 10 is mounted are mounted inside, respectively. It is arranged on the front side. A rear frame 14 b having a rear door 17 b that can be opened and closed is mounted on the rear of the frame 14.

A roof frame 14c having a roof panel 9 mounted thereon.
Are arranged on the upper side of the frame 14. Frame 14
Includes a control frame 14a, a rear frame 14b, and a roof frame 14c.
Are assembled with bolts 20.

In such a metal-closed switchgear, the box is composed of a frame 14, a control frame 14a, and a rear frame 14b.
And the roof frame 14c, respectively, so that the electric device 1, the main circuit conductor 2, and the supporting insulator 3 are stored and fixed in the frame 14, and the front door 17 is mounted on the control frame 14a.
a, the operation of attaching the movable door 6 and the instrument plate 8, the operation of attaching the rear door 14b to the rear frame 14b,
The work of attaching the roof panel 9 to the roof 4c can be performed independently and simultaneously, and the assembling time can be reduced. These operations are performed by the frame 14, the control frame 1
4a, the back frame 14b, and the roof frame 14c can also be performed in a horizontal state, so that work is not performed at a high place, which is not only safe but also improves work efficiency.

The front door 17a which needs to have a waterproof structure between the outdoor installation type and the indoor installation type,
The frames 14 other than the control frame 14a to which the rear door 17b and the roof panel 9 are respectively attached, the rear frame 14b and the roof frame 14c can be used in common, so that parts can be shared.

[0014]

As is apparent from the above description, the present invention divides a box into a frame, a control frame, a rear frame, and a roof frame, thereby enabling division and parallel work and shortening assembly time. In addition to the above, since the frame, the control frame, the rear frame, and the roof frame can be placed in a horizontal state, work at a high place is not performed, and safety is improved, and work efficiency is improved. Further, the frame can be shared between the outdoor installation type and the indoor installation type, and the cost can be reduced by mass production.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of a metal-closed switchgear according to the present invention, in which (A) is a front view and (B) is a side view.

FIG. 2 shows an example of a conventional metal-closed switchgear, in which (A) is a front view and (B) is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric apparatus 2 Main circuit conductor 3 Support insulator 5 Monitoring apparatus 6 Movable door 8 Instrument board 9 Roof board 10 Terminal block 14 Frame 14a Control frame 14b Back frame 14c Roof frame 17a Front door 17b Back door 20 bolt

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akito Wada 3-1-1, Yoshino-cho, Nishibiwajima-cho, Nishi-Kasugai-gun, Aichi Prefecture Inside the Takatake Works Nagoya Office

Claims (1)

[Claims] 1. A frame in which an electric device, a main circuit conductor, and a support insulator are housed, and a front door which is disposed on the front side of the frame and which can be opened and closed on the front side, and which has a monitoring device mounted thereon. A control frame in which an instrument plate to which a door and a terminal block are attached is respectively mounted inside, a rear frame in which a rear door which is arranged on the back side of the frame and which can be opened and closed on the rear side is mounted, and an upper side of the frame. And a roof frame having a roof panel attached to an upper portion thereof, wherein the control frame, the rear frame and the roof frame are bolted to the frame to form a box, Closed switchgear.