JPH077820A - Switchboard - Google Patents

Abstract

PURPOSE:To unify the arrangement of the main circuit equipment and control circuit apparatuses of a switchboard regardless of the drawing-in directions of the main circuit cables and control cable of the switchboard. CONSTITUTION:Terminals 1 for main circuit cable 7 and a terminal 10 for a control cable 8 are arranged in the upper section of the main body 12 of a switchboard. A cable processing box 6 which houses the cables 7 and 8 is provided on the upper surface of the main body 12 and a cable processing board 9 which houses the cables 7 and 8 is provided on the side face of the main body 12. The cables 7 and 8 are respectively connected to the terminals 1 and 10 after the cables 7 and 8 are led in the board 9 from the lower surface of the board 9 and led out from the lower surface of the box 6 through the box 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchboard for protecting and controlling a power system.

[0002]

2. Description of the Related Art Generally, a main circuit cable and a control cable of a switchboard are drawn into the switchboard from above or below the switchboard depending on the case. These conventional examples will be described with reference to FIGS. 2 shows a block skeleton of the switchboard when the main circuit cable and the control cable are drawn from below the switchboard, and FIG. 3 shows a block skeleton of the switchboard when the main circuit cable and the control cable are drawn from above the switchboard.

In FIG. 2, main circuit devices such as a busbar 5 provided on an upper portion of a switchboard 2 and a circuit breaker 4, a current transformer 3, and a terminal 1 for a main circuit cable are connected in series to a lower portion of the switchboard 2 by conductors or the like. It is connected. Further, the control cable terminal 10 is provided in the lower portion of the switchboard 2. The main circuit cable 7 and the control cable 8 are connected to the main circuit cable terminal 1 and the control cable terminal 10 from below the switchboard 2 through the through holes provided in the lower surface of the switchboard 2.

In FIG. 3, main circuit devices such as a busbar 5 provided at a lower portion of the switchboard 2 to a circuit breaker 4, a current transformer 3 and a terminal 1 for a main circuit cable are connected in series in the upper direction of the switchboard 2 by conductors or the like. It is connected. Further, the control cable terminal 10 is provided on the upper portion of the switchboard 2. The main circuit cable 7 and the control cable 8 are connected to the main circuit cable terminal 1 and the control cable terminal 10 from above the switchboard 2 through the through holes provided in the upper surface of the switchboard 2.

[0005]

In such a conventional switchboard, the main circuit cable 7 and the control cable 8 are used.
In the case of drawing in from above the switchboard 2 and in the case of drawing in from below the switchboard 2, main circuit devices such as the busbar 5, the circuit breaker 4, the current transformer 3, the main circuit cable terminal 1 in the switchboard 2, The arrangement of the control circuit devices such as the control cable terminal 10 is different, and it is necessary to design and manufacture the switchboard 2 according to the pulling direction of these, which increases the cost and requires a long period of time for manufacturing. Therefore, an object of the present invention is to provide an inexpensive and quick-delivery switchboard by unifying the arrangement of the main circuit device and the control circuit device of the switchboard regardless of the direction in which the main circuit cable and the control cable of the switchboard are drawn.

[0006]

In the present invention, a main circuit cable terminal of a main circuit device and a control cable terminal of a control circuit device are provided on an upper portion of a switchboard body, and a main circuit board main body is provided on an upper surface of the switchboard body. A cable processing box for housing a circuit cable and a control cable is provided, and a cable processing board for housing the main circuit cable and the control cable is provided on one or more surfaces of the left and right surfaces or the regular back surface of the switchboard main body. The main circuit cable and the control cable are drawn in from the lower surface of the cable processing board, pass through the cable processing box, and are drawn out from the lower surface of the cable processing box to provide the main circuit cable terminal and the control cable terminal. Respectively connected to.

[0007]

With the above configuration, when the main circuit cable and the control cable are pulled in from below, the main circuit cable and the control cable are pulled into the cable treatment board from the lower surface of the cable treatment board, and the cable treatment box is opened. It is possible to connect from the lower surface of the cable processing box to the main circuit cable terminal and the control cable terminal, respectively. As a result, the arrangement of the main circuit equipment and control circuit equipment in the switchboard when the main circuit cable and control cable are pulled in from below the switchboard is the same as when the main circuit cable and control cable are pulled in from above the switchboard. In addition to reducing the cost of the switchboard, the period required for production can be shortened.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. Note that FIG. 1 shows a block skeleton of the switchboard when the main circuit cable and the control cable are pulled in from below the switchboard.

In FIG. 1, main circuit devices such as a breaker 4, a current transformer 3 and a main circuit cable terminal 1 are connected in series from a bus bar 5 provided at a lower portion of the switchboard body 12 to an upper portion of the switchboard body 12. And so on. Further, the control cable terminal 10 is provided on the upper portion of the switchboard body 12. further,
A cable processing box 6 for accommodating the main circuit cable 7 and the control cable 8 is provided on the upper surface and the right side surface of the switchboard body 12.
And a cable processing board 9 are provided respectively. The main circuit cable 7 and the control cable 8 are the cable processing board 9
Through the through hole provided in the lower surface of the cable processing board 9 from below, and is drawn into the cable processing board 9 and goes through the through hole provided in the lower surface of the cable processing box 6 via the cable processing box 6. , And is connected to the main circuit cable terminal 1 and the control cable terminal 10, respectively.

When the main circuit cable 7 and the control cable 8 are pulled in from below the switchboard as described above, the cable processing box 6 and the cable processing board 9 are arranged so that the main circuit device and the control circuit device in the switchboard main body 12 are arranged. Is the main circuit cable 7 and the control cable 8
This can be performed in the same manner as in the case of pulling in from above the switchboard, and the cost of the switchboard can be reduced and the period required for manufacturing can be shortened.

[0011]

As described above, according to the present invention,
Regardless of the direction in which the main circuit cable and the control cable are pulled into the switchboard, the structure of the switchboard can be unified, the cost of the switchboard can be reduced, and the manufacturing period can be shortened.

[Brief description of drawings]

FIG. 1 is a block skeleton of a switchboard when a main circuit cable and a control cable are drawn from below the switchboard according to an embodiment of the present invention.

FIG. 2 is a block skeleton of a switchboard when a main circuit cable and a control cable are drawn from below the switchboard, showing a conventional example.

FIG. 3 is a block skeleton of a switchboard when a main circuit cable and a control cable are drawn from above the switchboard, showing a conventional example.

[Explanation of symbols]

 1 Main circuit cable terminal 6 Cable processing box 7 Main circuit cable 8 Control circuit cable 9 Cable processing board 10 Control cable terminal 12 Switchboard body

Claims (1)

[Claims] 1. A main circuit cable terminal of a main circuit device and a control cable terminal of a control circuit device are provided on an upper portion of a switchboard body, and the main circuit cable and the control cable are housed on an upper surface of the switchboard body. A cable processing box is provided, and a cable processing panel that houses the main circuit cable and the control cable is provided on one or more surfaces of the left and right surfaces or the regular back surface of the switchboard main body, and the main circuit cable and the control cable are , Being pulled in from the lower surface of the cable processing board, passing through the cable processing box, drawn out from the lower surface of the cable processing box, and connected to the main circuit cable terminal and the control cable terminal, respectively. Characteristic switchboard.