JPH07227011A - Metallic enclosed type switchgear - Google Patents

Abstract

PURPOSE:To eliminate the need of a distribution board exclusively used for a transformer so as to improve the workability by fixing the transformer on a channel base in the space surrounded by a breaker board and distribution board. CONSTITUTION:After arranging a breaker board 2 and distribution board 3 in a U-shape on a channel base 1, a control line duct 4 is assembled from the top. Then, a house transformer 8 covered with a grounding metal is fixed on the base 1 in the space surrounded by the base 1, back panel 5 of the breaker board 2, back panel 6 of the distribution board 3, and the partition 7 of the duct 4. Therefore, the cost of a metallic enclosed type switchgear can be reduced, because no exclusive enclosure is required for housing the transformer 8. In addition, no dismantling work is required at the factory nor restoring work is required on the spot, because the switchgear can be transformed in one body.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a metal closed switchgear.

[0002]

2. Description of the Related Art Conventionally, in this type of metal closed switchgear, a circuit breaker panel for accommodating a circuit breaker for opening and closing a main circuit, a transformer panel for accommodating a station transformer, and a secondary circuit for a station transformer. Like the distribution board that houses the circuit breaker, the equipment is built into a completely self-standing board. Further, even in the case of a collective type in which a circuit breaker panel, a transformer panel, and a distribution panel are integrated, it is similarly configured by connecting completely self-standing panels.

[0003]

However, since such a metal-closed switchgear has a self-supporting board structure, when the board is moved, the storage device is pulled out and moved due to the strength of the board. It takes time to work.

Further, for example, in the case of a transformer panel, it is necessary to process the box side in consideration of pulling out the transformer of the storage equipment, which causes a cost increase. On the other hand, even at the time of shipping, it is necessary to pull out the storage device and dismantle the board, and to restore the work locally, which further increases the cost. An object of the present invention is to provide a metal-closed switchgear that can improve workability by eliminating the need for a transformer-dedicated panel.

[0005]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a circuit breaker panel containing a circuit breaker for opening and closing a main circuit of an electric device, and an auxiliary power supply as a secondary circuit of a transformer. It has a distribution board for supplying power and a channel base for installing the breaker board and the distribution board, and the transformer is installed on the channel base in the part surrounded by the breaker board and the distribution board. It eliminates the need for a panel and can be used for transportation work with the transformer installed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a metal-closed switchgear showing an embodiment of the present invention. In the figure, the circuit breaker board 2 and the distribution board 3 are arranged in a U shape on the channel base 1.
Assemble the control line duct 4 from above. With this structure, the channel transformer 1, the rear panel 5 of the circuit breaker panel 2, the rear panel 6 of the distribution board, and the partition plate 7 of the control line duct 4 house the transformer 8 which is covered with the ground metal. Space can be secured.

Next, FIG. 2 shows a plan view of the board arrangement, FIG. 3 shows a front view of the circuit breaker board, and FIG. 4 shows a side view of the circuit breaker board. In these figures, the circuit breaker 9 and the auxiliary device 10 are stacked in multiple stages,
It is configured so that maintenance can be performed from the front. Also,
The bus bar 11 for connection with the on-site transformer 8 is constructed so that it can be pulled out from the rear surface of the panel so that it can be applied to the metal-closed switchgear of this embodiment. FIG. 5 is a detailed view of the channel base 1, in which a guide rail 12 for the on-site transformer 8 and a fixing boss 13 are attached.

Next, FIG. 6 shows the structure of the front door of the in-house transformer storage space. Rear panel 5 of adjacent circuit breaker panel 2
By attaching the hinge 14 for the door to the front door 15
Install.

In such a structure, the in-house transformer panel for housing the in-house transformer 8 is not required, and the in-house transformer 8 can be housed in a safe space covered with the ground metal.

On the other hand, when transporting a conventional metal-closed switchgear, especially in the case of a panel accommodating an in-house transformer, make a strong self-supporting box body to support the weight of the in-house transformer, or I was pulling out a transformer and transporting it. However, in the present embodiment, the weight of the on-site transformer can be supported by the channel base 1, and the weight of the on-site transformer can be arranged almost at the center of the whole metal-closed switchgear. Remarkably improved.

FIG. 7 is a view showing a state in which the metal-closed switchgear is lifted up integrally. Since it is supported from above and below by the channel base 1 and the control line duct 4, it can be firmly fixed without a box dedicated to the on-site transformer.
Also, the lifting metal fitting 1 attached to the channel base 1.
6 and the wire fitting 17 can be safely lifted.

As described above, according to this embodiment, the following effects can be obtained. (1) Since a dedicated box for housing the on-site transformer is not required, it is possible to provide a low-priced metal closed switchgear.

(2) Since the on-site transformer can be directly fixed to the channel base, the on-site transformer can be transported in a housed state, and dismantling work at the time of shipping and on-site restoration work are unnecessary.

(3) Since the on-site transformer can be directly fixed to the channel base, the vibration of the transformer panel when the on-site transformer is housed, which has been a problem in the past, does not affect the adjacent metal-closed switchgear. , The reliability is significantly improved. (4) Since the metal closed switchgear can be transported as a unit, dismantling work at the factory and restoration work at the site are unnecessary.

[0015]

As described above, according to the present invention, a circuit breaker panel containing a circuit breaker for opening and closing a main circuit of an electric device, and a distribution board for supplying auxiliary power as a secondary circuit of a transformer. Since it has a channel base to install the circuit breaker panel and the distribution board, and the transformer is installed to the channel base in the part surrounded by the circuit breaker panel and the distribution board, the transformer board is not necessary. , Workability can be improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a metal-closed switchgear showing an embodiment of the present invention.

FIG. 2 is a plan view of the board arrangement shown in FIG.

FIG. 3 is a front view of the circuit breaker panel 2 of FIG.

FIG. 4 is a side view of the circuit breaker panel of FIG.

FIG. 5 is a detailed view of the channel base 1 of FIG.

FIG. 6 is a diagram showing a structure of a front door of the in-house transformer storage space of FIG. 1;

FIG. 7 is a diagram showing a lifted state of the metal closed switchgear of FIG. 1;

[Explanation of symbols]

1 ... Channel base, 2 ... Circuit breaker board, 3 ... Distribution board, 8 ...
On-site transformer.

Claims (3)

[Claims] 1. A ceiling part, a circuit breaker panel accommodating a circuit breaker for opening and closing a main circuit of an electric device, a distribution board for supplying auxiliary power as a secondary circuit of a transformer, and the circuit breaker panel. A switchgear with a channel for mounting a distribution board, wherein the transformer is installed on a channel base in a portion surrounded by the circuit breaker board and the distribution board. 2. The transformer is installed in a central portion of a channel base, and an openable / closable door is provided at a place other than the transformer being surrounded by the breaker panel and a distribution panel. The metal closed switchgear according to claim 1. 3. The metal-closed switchgear according to claim 1 or 2, wherein the transformer is installed on a channel base and is clamped by a ceiling portion.