JP2565745Y2 - Closed switchboard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial Application Field) The present invention relates to a closed switchboard, and particularly to a configuration that can easily cope with a change in layout. 2. Description of the Related Art Conventionally, when a closed switchboard (hereinafter, referred to as a panel) is assembled on one surface, assembly of a main circuit, wiring, and storage equipment are performed for one box (hereinafter, referred to as a frame). Had been incorporated. On the other hand, the units are unitized for each component in order to cope with efficiency and work flow, but they are also incorporated into one frame. (Problems to be Solved by the Invention) Recent user demands include liberalization of board layout, short delivery time, and low cost. However, the above-described conventional techniques have the following problems. (1) Due to the restriction of the user's electric room, there are several types of panels of the same rating, such as front maintenance type and front and rear maintenance type, so that design, assembly, processing and parts are increased. (2) In order to deal with a reduced board with one frame per side, work to enter into a narrow space by main circuit assembly, wiring, etc., or work to assemble the same parts by two or more people Increase. (3) Since wiring and structural assembly are performed in the same frame, process management is difficult. (4) Since there are several types of processes on the same assembly line, the number of production days is not easily reduced, and it is difficult to secure a delivery date. It is an object of the present invention to provide a closed switchboard which can flexibly arrange the layout of the board and can respond to a user request with a short delivery time and low cost. [Means for Solving the Problems] The present invention relates to a closed switchboard for storing electrical equipment including a relay, a circuit breaker, and a cable. Is divided into a second chamber for storing the cable and a third chamber for storing the cables, and the height of each of these chambers is the same, and the depth of the first chamber is A, and the depth of the second chamber is B, when the depth dimension of the third chamber is C, and the width of the first chamber, the second chamber, and the third chamber is W, B =
A + W and C are W or less so that these chambers can be selected and connected in the front-rear direction or the horizontal direction. (Operation) When the first chamber, the second chamber, and the third chamber are connected in the front-rear direction, a front-rear maintenance-type layout panel is formed, and the first chamber and the third chamber are arranged beside the second chamber. When these rooms are connected, a layout panel is formed in a front maintenance type. That is, in the case of the same rating, the front and rear maintenance-type layout panel and the front maintenance-type layout panel can be formed by combining the same parts. (Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
First, a basic configuration viewed from a plane will be described. FIG. 1 is a horizontal sectional view of a front and rear maintenance type layout board. In the figure, the panel includes a cable room 1, a breaker room 2, and a relay room 3. Here, the cable room 1 is configured as follows. That is, the current transformer 5, the glass 6, the zero-phase current transformer 7, and the cable 8 are housed in the cable room 1. In the figure, a partition plate 9 is provided on one side (the left side in the figure), the other side is open, and a back door 10 is provided on the back side. The width of the rear door 10 is equal to or slightly shorter than the width of the cable room 1. The breaker room 2 is configured as follows. That is, the breaker room 2 accommodates the breaker room unit 12 and the vertical bus 13. In the same figure, a partition plate 14 is provided on the side surface in the same direction as the above-mentioned partition plate 9, the other side surface is opened, and both the front and back sides are opened. 3 is connected to the back side, and the back side is connected to the front side of the cable room 1. The relay room 3 is configured as follows. That is, a relay 16 is housed in the relay room 3 (attached to a front door 18 described later).
A partition plate 17 is provided on a side surface in the same direction as the above-described partition plates 9 and 14, the other side surface is open, and a front door 18 is provided on the front side. The width of the front door 18 is equal to or slightly shorter than the width of the relay room 3. The relay room 3, the breaker room 2, and the cable room 1 configured as described above have the same height, the depth of the relay room 3 is A, the depth of the breaker room 2 is B, and the cable is Assuming that the depth dimension of the room 1 is C and the width of each of these rooms is W, B = A + W and C have a relationship of W or less, and the four corners of each room (excluding the partition plates 9 and 14). , 17 are bent portions) are provided with connecting holes 20 so that they can be freely combined with adjacent chambers in front, rear, and lateral directions. The breaker 2 is provided with a partition column 21 at a position where the dimension D from the back side is equal to W, and the partition column 21 is also provided with a connecting hole.
20 are provided. The partitioning column 21 supports the circuit breaker unit 12, partitions the space between the circuit breaker and the side wall when the circuit breaker is inserted, maintains safety, and serves as a column when connecting the cable room 3 to the side surface. is there. The connection between the main circuit disconnecting portion 22 of the circuit breaker unit 12 and the current transformer 5 may be either a conductor or a cable. As mentioned above, cable room 1, breaker room 2, relay room 3
, The front maintenance layout platen shown in FIG. 2 can be formed. That is, a front door 23 is provided on the front side of the circuit breaker room 2, and the right side surface of the circuit breaker room 2 (the partition plate 14) is provided.
The relay room 3 and the cable room 1 are connected to each other. Here, the cable room 1 is set so that the partition plate 9 is on the back side, and a cover (not shown) is attached to the back surface of the circuit breaker room 2 to separate it from the outside. Next, from the distribution system of a substation, a plurality of distribution boards are often used as a board structure. Therefore, in this case, the cable room, the breaker, and the like are mounted so that the required number of circuit breaker units 12, current transformers 1, zero-phase current transformers 7, insulators 6, relays 16 and the like can be mounted while having the basic configuration described above. The vertical dimensions of the equipment room and the relay room may be selected. FIG. 3 shows a side view of a typical front-rear maintenance layout board with a three-level distribution board. This panel, while having the above-described basic configuration, accommodates up to three distribution line devices in the vertical direction. That is, cable room 1, breaker room 2,
The relay room 3 is connected, and a space E of a horizontal bus room 25 is provided above and below as a stacked structure, and a circuit breaker room space F is equally divided. Further, the main circuit disconnecting portion 22 is equally distributed in the vertical direction (H, H) based on the circuit breaker center position G. The current flows from the horizontal bus 26 to the vertical bus 13, the circuit breaker 27,
The current flows from the cable 8 to the load via the main circuit disconnecting section 22 and the current transformer 5. FIG. 4 shows a side view of a front maintenance type layout board which is also a three-level distribution board. In this board, the above-described basic configuration is changed as shown in FIG. 2, and each device for three distribution lines is accommodated in the vertical direction. That is, the cable room
1, the circuit breaker room 2 and the relay room 3 are connected, and the circuit breaker room 2 is provided with upper and lower horizontal bus rooms 23 as in the case of FIG. 3, and the circuit breaker room space is divided into three equal parts. . According to the above configuration, the cable room, breaker room, relay room, etc. are completely independent and have compatibility, so that the front and rear maintenance type layout panel and the front maintenance type layout panel with the same design and the same parts are used. The following effects can be obtained. (1) Since the design is the same, the design cost is halved. (2) Since the designs are the same, the types of parts are reduced by half. (3) Since the same parts are manufactured, productivity is improved. (4) Since each process is independent, the assembly efficiency increases. (5) Since each process is independent, the work flow is easy. (6) Parts management is easy because they are independent for each process. In addition, the stacking of devices is arranged evenly in the vertical direction by center distribution, and changes in the system (drawing to a load) can be dealt with only by changing the mounting direction, and the following effects can be obtained. (1) Since the number of types of parts does not increase, errors in work are reduced. (2) Since only the mounting direction is changed, the assembly cost does not change. (3) Since the components are the same, management is easy. In addition, this invention is not limited to the above-mentioned three-level distribution board, but can be applied over a wide range from a single-level to a multi-level distribution board. That is, FIG. 5 shows a side view of the single-layer wiring board, and includes a cable room 1A, a breaker room 2A, and a relay room.
3A is connected along the basic configuration shown in FIG. FIG. 6 shows a side view of a two-stage distribution board, in which a cable room 1B, a breaker room 2B, and a relay room 3B are connected along the basic configuration shown in FIG. Fig. 7 shows a side view of a three-stage distribution board with cables pulled out from the top, with the cable room 1, breaker room 2, and relay room 3 in the same basic configuration as in Fig. 3. However, the positions of the main circuit disconnecting section 22 on the power supply side and the load side are reversed, the zero-phase current transformer 7 is mounted on the upper side, and the horizontal bus 26 is a lower horizontal bus chamber. Mounted on 25. Although the front and rear maintenance-type layout panels have been described above, it is needless to say that a front-maintenance-type layout panel can be configured. In such other embodiments, the same effects as in the above-described embodiments can be obtained. In addition, general switchboards (monitoring boards, control boards, etc.) also need to be replaceable and have a switchboard structure that matches the space conditions of the electrical room. Adopt the switchboard structure of the embodiment described above. As a result, a similar effect can be obtained. [Effects of the Invention] Since the present invention is configured as described above, the design, assembly, and production are standardized even for different requirements of the front and rear maintenance type layout panel and the front maintenance type layout panel, and each work is performed. Time is greatly reduced. Further, since the respective chambers are completely independent, the production can be performed in the unit of process, the efficiency of the assembling work is improved, the process management is also facilitated, and the number of production days can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a horizontal sectional view of the front and rear maintenance type layout panel of the present invention, FIG. 2 is a horizontal cross section of the front maintenance type layout panel of the present invention, and FIG. 3 is before and after the present invention. FIG. 4 is a side view showing an embodiment of a surface maintenance type layout board, FIG. 4 is a front view showing a part of an embodiment of a front maintenance type layout board of the present invention, and FIG. 5 is another embodiment of the present invention. FIG. 6 is a side view showing another embodiment of the present invention, and FIG. 7 is a side view showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Cable room 2 ... Circuit breaker 3 ... Relay room 5 ... Current transformer 8 ... Cable, 16 ... Relay 27 ... Circuit breaker

Claims (1)

(57) [Rules for requesting registration of utility model] In a closed switchboard for storing an electrical device including a relay, a circuit breaker, and a cable, a closed switchboard is provided in a first chamber for storing the relay, a second chamber for storing the circuit breaker, and a third for storing the cable. The first and second chambers are divided into the same height, the first chamber has a depth of A, the second chamber has a depth of B, and the third chamber has a depth of C. When the width of the first chamber, the second chamber, and the third chamber is W, B = A + W, and C is W or less, so that these chambers can be selected and connected in the front-rear direction or the lateral direction. A closed switchboard characterized by the following.