JPH0898334A - Switchboard - Google Patents

Abstract

PURPOSE: To reduce the dimensions of a panel to which a wiring breaker is attached, eliminate a door on the backside of a cubicle and a space for the inspection and maintenance and, further, improve the assembly workability. CONSTITUTION: A movable transformer 20 is housed in a cubicle 40 whose front side surface can be opened. A panel 1 which has a size facilitating the attachment of a wiring breaker 2 and main bus-bars 6 is attached to the transformer 20 with attachment metal fittings 11 and 12. The main bus-bars 6 are attached to the panel 1 with cleats 4 and 5. The main bus-bars 6 are connected to the wiring breaker 2 with branch bus-bars 3 and the main bus-bars 6 are connected to the secondary terminals 13 of the transformer 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchboard for supplying electric power to power equipment, lighting equipment and the like.

[0002]

2. Description of the Related Art FIG. 2 shows an example of a conventional switchboard. A panel 30 is attached to a front side of a box body 30 which is provided with doors on the front and back sides and which can be opened and closed. . The circuit breaker 2 for wiring is attached to the panel 1, and the main bus bar 6 is fixed by the cleats 4 and 5. A branch busbar 3 connects the circuit breaker 2 for wiring and the main busbar 6.

A movable transformer 20 to which wheels 14 are attached is housed in a box 30 on the back side thereof. Mounting hardware 11 and mounting hardware 12 are attached to the upper and lower portions of the transformer 20, respectively. The secondary terminal 13 of the transformer 20 is connected to the main bus 6. Reference numeral 15 denotes a fixing metal fitting for fixing the transformer 20 after it is housed in the box body 30.

[0004]

In the above conventional switchboard, since the panel 1 is fixed to the side surface of the box body 30,
The size is the width of the box body 30, and the wiring breaker 2
And, it must be larger than the dimension required for mounting the main bus 6. Further, since the front side of the box body 30 is closed by the panel 1, the transformer 20 must be pulled out from the back side of the box body 30 at the time of maintenance and inspection. Not only is it necessary to open and close the side, but also a maintenance and inspection space is required on the back side of the box body 30.

Further, the panel 1 is attached to the box body 30, the wiring breaker 2 and the main bus 6 are attached to the panel 1, the wiring breaker 2 and the main bus 6 are attached by the branch bus 3 and the main bus. The work such as connecting 6 and the secondary terminal 13 must be performed in the box body 30, and the workability is extremely poor. Therefore, it is an object of the present invention to provide a switchboard in which the size of the panel to which the circuit breaker for wiring is attached is reduced, the door on the rear side of the box and the maintenance and inspection space are unnecessary, and the assembling workability is improved. To do.

[0006]

In the switchboard of the present invention, a movable transformer is housed in a box whose front side can be opened and closed. A panel is attached to the metal fittings of this transformer. A circuit breaker and main bus bar will be installed on this panel. The breaker for wiring and the main bus are connected by a branch bus. The secondary terminal of the transformer and the main bus are connected.

[0007]

In the above switchboard of the present invention, since the panel is mounted on the transformer, the size of the panel can be reduced as long as the size is required to mount the wiring breaker and the main busbar. Also, since the front side of the box is not closed by the panel, the transformer can be stored or pulled out from the front side of the box,
The door on the rear side of the box and the maintenance and inspection space are unnecessary. In addition, all the installation of the panel to the transformer, the installation of the circuit breaker and the main busbar to the panel, the connection of the circuit breaker and the main busbar by the branch busbar, and the connection of the main busbar and the secondary terminal are all done in the box. Since it can be performed outside the body, its workability is also improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the present invention, in which a box 40 is provided with a door on the front side so that the front side can be opened and closed. The panel 1 formed to have a size to which the circuit breaker 2 for wiring and the main bus bar 6 can be attached is a movable transformer 20.
It is attached to the mounting hardware 11, 12. Circuit breaker 2
Is attached to panel 1, and main busbar 6 is attached to panel 1 by cleats 4 and 5. The circuit breaker 2 for wiring and the main bus 6 are connected by a branch bus 3. In addition, the secondary terminal 13 of the transformer 20 and the main bus 6 are connected.

In such a switchboard, the panel 1 is attached to the transformer 20, the wiring breaker 2 and the main bus 6 are attached to the panel 1, and the wiring breaker 2 and the main bus 6 are connected by the branch bus 3. Assembling work such as connecting the main bus 6 and the secondary terminal 13 is all performed outside the box 40. afterwards,
The wheels 20 of the transformer 20 are rotated to house the transformer 20 from the front side of the box body 40, and the transformer 2 is fixed by the fixing bracket 15.
0 is fixed to the box 40. Further, at the time of maintenance / inspection, the transformer 20 may be pulled out from the front side of the box body 40, and the maintenance / inspection work may be performed using the space on the front side of the box body 20.

[0010]

According to the switchboard of the present invention, the size of the panel can be reduced to the size required for mounting the circuit breaker for wiring and the main bus bar, and the size of the panel can be reduced. Further, the transformer can be stored or pulled out from the front side of the box, and the door on the back side of the box and the space for maintenance and inspection are unnecessary. In addition, all the installation of the panel to the transformer, the installation of the circuit breaker and the main busbar to the panel, the connection of the circuit breaker and the main busbar by the branch busbar, and the connection of the main busbar and the secondary terminal are all done in the box. Since it can be performed outside the body, its workability is also improved.

[Brief description of drawings]

FIG. 1 shows an embodiment of a switchboard according to the present invention, (A) is a front view and (B) is a side view.

FIG. 2 shows an example of a conventional switchboard, (A) is a front view,
(B) is a side view.

[Explanation of symbols] 1 panel 2 circuit breaker for wiring 3 branch bus bar 6 main bus bar 13 secondary terminal 20 transformer 40 box

Claims (1)

[Claims] 1. A movable transformer is housed in a box whose front side can be opened and closed, a panel is attached to the metal fitting of this transformer, and a circuit breaker and a main busbar are attached to this panel. The switchboard for wiring is connected to the main busbar by a branch busbar, and the secondary terminal of the transformer is connected to the main busbar.