JP4145386B2 - switchboard - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a switchboard.
[0002]
[Prior art]
Conventionally, there are two types of indoor equipment for high-voltage power receiving equipment: a combination of a frame pipe assembly in an electrical room and a self-standing switchboard, and an indoor cubicle system.
The former assembles a frame pipe in an electrical room, attaches equipment and switchboards to it, and performs on-site work such as wiring between equipment, but has the disadvantage that equipment parts are miscellaneous and construction work is complicated. .
[0003]
On the other hand, since the latter is manufactured in a factory, there are advantages in delivery time, quality, and safety of handling.
[0004]
[Problems to be solved by the invention]
However, there was a problem that it was difficult to modify during production or after delivery. On the other hand, the product can be finished in a compact manner, but it is not easy to perform wire entry work, connection work, and maintenance work in electrical work.
Accordingly, an object of the present invention is to provide a switchboard that can be manufactured in a factory, can be easily constructed, connected, connected, and maintained, and can be easily modified after delivery.
[0005]
[Means for Solving the Problems]
The switchboard according to claim 1 is attached to the front surface portion with a frame body having a convex front portion formed with a wiring recess extending in the vertical direction, with a load side terminal facing the wiring recess. A plurality of circuit breakers and a connection body disposed on the back side of the front surface portion of the frame body and connected to a power supply side terminal of the circuit breaker.
[0006]
According to the switchboard according to the first aspect, the frame body is assembled in a unit system at the factory, so that the construction is easy, and the load-side wiring of the circuit breaker can be performed from the front side of the switchboard to the wiring recess. As a result, it is easy to perform the operations of incoming line, its connection and wiring, and maintenance. Moreover, for example, even if a circuit breaker is added on the front side, the connection with the connection body can be made from the front side of the switchboard.
[0007]
According to a second aspect of the present invention, the switchboard includes a transformer housing frame that houses a transformer whose load side is connected to the connecting body.
According to the switchboard of the second aspect, in addition to the same effect as the first aspect, since the transformer housing frame can be manufactured at the factory, each work of construction, incoming wiring, connection and maintenance becomes easy, and modification is also easy. it can.
[0008]
A switchboard according to a third aspect is the switchboard according to the second aspect, wherein the transformer housing frame is connected to the rear side of the frame, and the transformer in the transformer housing frame is directly installed on a floor surface.
According to the switchboard according to the third aspect, the construction work becomes easier than in the second aspect.
[0009]
A switchboard according to a fourth aspect is the switchboard according to the second aspect, wherein the transformer housing frame is disposed on the rear side of the frame via a working space.
According to the switchboard of the fourth aspect, in addition to the same effect as that of the second aspect, work such as maintenance using the space is further facilitated.
A switchboard according to a fifth aspect is the switchboard according to the second aspect, wherein the transformer housing frame is arranged side by side on the frame.
[0010]
According to the switchboard of the fifth aspect, in addition to the same effect as that of the second aspect, the switchboard is suitable for installation in a place having a narrow depth and a wide width.
The switchboard according to claim 6 is provided with a transformer housing frame installed on the floor so as to accommodate a transformer installed on the floor, and is provided on the front surface of the transformer housing frame and is narrower than the front surface. A box frame portion, a plurality of circuit breakers provided on the front surface portion of the box frame portion, and a connection body disposed inside the box frame portion and connected to the power supply side terminal of the circuit breaker, The front surface of the transformer housing frame on the side of the box frame portion is a wiring recess, and each load-side terminal of the circuit breaker is directed to the wiring recess.
[0011]
According to the switchboard of the sixth aspect, there are the same effects as in the first to third aspects.
According to a seventh aspect of the present invention, in the distribution board according to the first or sixth aspect, the wiring recess has a cable support.
According to the switchboard of the seventh aspect, in addition to the same effect as that of the first or sixth aspect, it becomes easy to perform the line adjustment.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. That is, in FIGS. 1 to 3, the switchboard includes a frame body 1, a circuit breaker 2, a connection body 3, and a transformer housing frame body 4.
The frame 1 has a convex front surface portion 6 in which a wiring recess 5 extending in the vertical direction is formed. In the embodiment, as shown in FIG. 2, the frame body 1 has a rectangular flat frame 1 a composed of a lower piece formed by an angle, a pair of side pieces and an upper piece, and a rectangular shape attached to the center position thereof. The convex front part 6 is formed by forming the wiring recess 5 along the side part of the front part. Specifically, both side surfaces of the box part 1b and the plane frame are formed. A wiring recess 5 is formed in a corner shape between 1a and 1a. A plurality of cable supports 9 made of metal or the like are provided in the wiring recess 5, for example, in a ladder shape on the flat frame 1 a, for example, to bind the cables. An instrument housing 1c is provided in front of the upper end of the box frame 1b.
[0013]
The plurality of circuit breakers 2 are attached to the front surface portion 6 with the load side terminal 7 facing the wiring recess 5. In the embodiment, a pair of circuit breaker panels 15 are attached to the lower side of the instrument housing portion 1c of the front surface portion 6 with an interval of 16, and the circuit breakers 2 are arranged in a row in each circuit breaker panel 15 respectively. It is installed. The load side terminals 7 of each row are directed in opposite directions, that is, toward the wiring recesses 5 on both sides of the housing 1b, and therefore the power supply side terminals 8 face each other. An end of a load cable 10 is connected to the load side terminal 7, and each cable 10 extends to the ceiling side or the floor side along the wiring recess 5, and the middle thereof is fixed to the cable support 9 by a fixing tool. is doing. The cable 10 extending to the ceiling side is further wired to a load along the ceiling by a wiring facility (not shown), and the cable 10 extending to the floor side is embedded in the floor and connected to the load. The circuit breaker 2 can be replaced or added to the circuit breaker panel 15. An instrument panel 17 is rotatably attached to the instrument casing 1c by a hinge, and an ammeter 19 and a voltmeter 18 are installed on the instrument panel.
[0014]
The connection body 3 is disposed on the back side of the front surface portion 6 of the frame body 1 and connected to the power supply side terminal 8 of the circuit breaker 2. The connection body 3 in the embodiment is three bars extending vertically, and the bar and the power supply side terminal 8 are connected by a power supply connection member (not shown) through the interval 16 between the breaker panels 15.
The transformer housing frame 4 houses a transformer whose load side is connected to the connection body 3. The transformer housing frame 4 is connected to the rear side of the frame 1, and the transformer in the transformer housing frame 4 is directly installed on the floor surface. The transformer housing frame 4 according to the embodiment is formed into a box frame using an angle, for example, and the flat frame 1 a of the front surface portion 6 is integrally configured as a front frame of the transformer housing frame 4. In other words, this structure includes a transformer housing frame 4 having a front surface portion 6 installed on the floor so as to accommodate a transformer installed on the floor, and a front surface of the transformer housing frame 4 provided on the front surface of the transformer housing frame 4. It can also be considered that it is configured with a narrower box frame portion 1b.
[0015]
In this case, since the transformer is installed on the floor surface, the transformer is first installed on the floor when the transformer housing frame 4 is installed on the floor, and then the flat U-shaped bottom plate 31 is fixed to the floor surface. 4, the lower frame of the rear lower end 12 is removed and the lower end of the transformer housing frame 4 is slid along the bottom plate 31 to cover the transformer, and the transformer housing frame 4 is fixed to the bottom plate 31 at a fixed position. Install. Reference numeral 13 denotes a bottom plate of the box frame portion 1b. The transformer housing frame 4 is assembled by, for example, a screw assembling method using a corner connecting bracket and a hole angle. The front part 1 is also assembled by the same members as these. In addition, an electric device such as a load switch (LBS) is attached to an upper portion of the transformer housing frame 4 by attaching an electric device mounting bar. 37 is a protective cover, 38 is a ceiling board.
[0016]
Reference numeral 14 denotes a high-voltage power receiving panel arranged in parallel with the switchboard, and feeds power from the side opening 32 to the power source side of the transformer. 33 is the bottom plate. The high-voltage power receiving panel 14 is a closed type and keeps safety with the power distribution panel, and is provided with doors 34 and 35 on the front and rear surfaces so that the inside of the high-voltage power receiving panel can be easily seen, and the equipment is compactly finished and secured. I am trying sex.
[0017]
FIGS. 4 to 11 show a high-voltage power receiving board and a power distribution board of a high-voltage power receiving facility of a specific example of the embodiment having the above-described configuration.
FIG. 4 shows the single line connection diagram. In FIG. 4, 20 is a connection diagram of a high voltage power distribution board, 21 is a connection diagram of a distribution board of a low piezoelectric lamp panel, and 22 is a connection diagram of a distribution board of a low voltage power panel. DS is a disconnector, VCB is a high-pressure vacuum circuit breaker, V is a voltmeter, A is an ammeter, LBS is a load switch, and T is a transformer.
[0018]
5 is a plan view showing the arrangement of the high-voltage power receiving panel 14 and the pair of distribution boards 24 and 25, and FIG. 6 is a front view thereof. Opening and closing doors 27 and 28 are attached to the front face 1 of the switchboards 24 and 25, respectively. The high-voltage power receiving panel 14 is provided with a side plate, a partition plate is attached to the boundary with the distribution board 24, the distribution boards 27 and 28 are provided with a ceiling plate 38, and protective covers 37 are provided on the side and rear surfaces thereof. ing.
[0019]
FIG. 7 shows the bottom plates 13, 13 ′, 33 and the transformers 40, 41. FIG. 6A is a plan view showing a state in which these are installed on the floor surface, and FIG. 6B is a cross-sectional view of the floor surface mounting portion by the anchor bolt 43 of the bottom plate 31 or 31 ′. ) Is a cross-sectional view of the floor surface mounting portion of the bottom plate 13 by the anchor bolt 45.
FIG. 8 shows a front view of the switchboard 24 without a door. In this switchboard 24, the circuit breakers 2 are arranged in a vertical row, and the wiring recess 5 is only on the right side. However, a recess 5a is also formed on the left side because the high-voltage power receiving panel 14 is disposed on the left side. The circuit breaker 2 includes three 400AF circuit breakers 2a, five 225AF circuit breakers 2b, and two 50AF circuit breakers 2c. Reference numeral 51 denotes a transparent charging unit protective cover that covers the load side terminal 7 detachably, and 52 denotes a transparent charging unit protective cover that covers the power source side terminal 8 detachably.
[0020]
FIG. 9 shows a side view thereof, 53 is a high-voltage insulator of the electric wire connected to the high-voltage power receiving panel 14, 54 is an electric circuit connected to the power source side of the transformer T via the LBS, and 55 is a load side and connecting body of the transformer T 3 is an electric circuit that connects the three. 56 is a transparent protective cover for protecting the back side of the transformer housing frame 4 close to the LBS, and 59 is an interphase insulating barrier on the left and right side surfaces.
[0021]
FIG. 10 shows a front view of the switchboard 25. In this switchboard 25, the circuit breakers 2 (2 a, 2 b) are arranged in two rows, and the wiring recess 5 is formed on both sides of the front surface portion 6. In addition, the same code | symbol is attached | subjected to FIG. 8 and a common part. FIG. 11 is a side view thereof.
According to the first embodiment, since the frame body 1 is assembled in a unit system at the factory, the construction is easy, and the load side wiring of the circuit breaker 2 is routed from the front side of the switchboard to the wiring recess 5. Since it can be performed, each operation of incoming line, its connection and wiring, and maintenance is easy. Moreover, for example, even if the circuit breaker 2 is added to the front surface portion 6, the connection body 3 can be connected from the front surface side of the switchboard, so that modification after delivery is easy.
[0022]
Also, since the transformer housing frame 4 is housed in the factory because the transformer housing frame 4 that houses the transformer T connected to the load side is connected to the connection body 3, each work of construction, entry, connection, and maintenance becomes easy. And remodeling can be done easily.
Since the transformer housing frame 4 is connected to the rear side of the frame 1 and the transformer T in the transformer housing frame 4 is directly installed on the floor surface, the construction work is further facilitated.
[0023]
To explain these effects more specifically, since the load cable 10 can be connected to the circuit breaker 2 from the front of the switchboards 24 and 25, the wiring can be easily replaced, and in particular, the power failure time during the repair work can be reduced. For example, it can be shortened to about half or less of the conventional one.
Taking advantage of the features of the conventional frame pipe assembly type electric room, it is standardized and standardized as a frame unit type, and it is manufactured at the factory, so quality is stable, safety is high, reliability is high, and cost is low. Become. Therefore, it is most suitable for electrical equipment in factories and large-scale stores, rental electrical equipment in condominiums, and the like. In particular, since the load-side cable 10 can be constructed before the distribution board is delivered locally, the construction period can be shortened.
[0024]
In addition, transparent covers 51 and 52 are used at the load side and power source side connection parts of the circuit breaker 2 so that visual inspection of the connection parts can be facilitated, and it is useful for early detection of abnormalities, tightening bolts and nuts, etc. Daily inspection is easy.
The material used for the frame 1 and the transformer housing frame 4 is made of steel plate. The melamine baking finish, parts and components are the same as those used for the cubicle switchboard, and these are equal to or higher than these. It has the durability of.
[0025]
Since the transformer T is installed on the floor and not fixed to the transformer housing frame 4, the moving cost of the transformer T can be reduced.
When the meter panel 17 is a door type, maintenance and maintenance are facilitated.
Providing the cable support 9 facilitates cable bundling and straightening.
[0026]
FIG. 12 shows another embodiment, and FIG. 12A shows a form in which the transformer housing frame 4 is arranged on the rear side of the frame 1 via a working space 61. The width of the space 61 is, for example, such that an operator can pass for work. Operations such as maintenance using the space 61 are further facilitated.
FIG. 12B shows a form in which the transformer housing frame 4 is arranged side by side on the frame 1. This is suitable when the switchboard is installed in a place having a narrow depth and a wide width.
[0027]
In addition, in the said embodiment, although it was a case where two switchboards were used, you may install the switchboard of the number more than that in parallel. Moreover, you may provide a cable support also in the side part of the box frame part 1b used as the recessed path 5 for wiring.
[0028]
【The invention's effect】
According to the switchboard according to the first aspect, the frame body is assembled in a unit system at the factory, so that the construction is easy, and the load-side wiring of the circuit breaker can be performed from the front side of the switchboard to the wiring recess. As a result, it is easy to perform the operations of incoming line, its connection and wiring, and maintenance. Moreover, for example, even if a circuit breaker is added on the front side, the connection with the connection body can be made from the front side of the switchboard.
[0029]
According to the switchboard of the second aspect, in addition to the same effect as the first aspect, since the transformer housing frame can be manufactured at the factory, each work of construction, incoming wiring, connection and maintenance becomes easy, and modification is also easy. it can.
According to the switchboard according to the third aspect, the construction work becomes easier than in the second aspect.
[0030]
According to the switchboard of the fourth aspect, in addition to the same effect as that of the second aspect, work such as maintenance using the space is further facilitated.
According to the switchboard of the fifth aspect, in addition to the same effect as that of the second aspect, the switchboard is suitable for installation in a place having a narrow depth and a wide width.
According to the switchboard of the sixth aspect, there are the same effects as in the first to third aspects.
[0031]
According to the switchboard of the seventh aspect, in addition to the same effect as that of the first or sixth aspect, it becomes easy to perform the line adjustment.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of an embodiment of the present invention.
FIG. 2 is an exploded perspective view of a switchboard frame and a transformer housing frame as seen from another angle.
FIG. 3 is a side view of the assembled state.
FIG. 4 is a single line connection diagram of the embodiment.
FIG. 5 is a plan view of the high-voltage power receiving facility.
FIG. 6 is a front view thereof.
7A is a plan view of the bottom plate in the installed state, FIG. 7B is a cross-sectional view of the floor mounting portion of the transformer housing frame, and FIG. 7C is a cross-sectional view of the floor mounting portion of the bottom plate of the frame.
FIG. 8 is a front view of a switchboard.
FIG. 9 is a side view thereof.
FIG. 10 is a front view of another switchboard.
FIG. 11 is a side view thereof.
FIG. 12 is a schematic plan view of another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Frame body 2 Circuit breaker 3 Connection body 4 Transformer accommodation frame body 5 Concave for wiring 6 Front surface part 7 Load side terminal 8 Power supply side terminal 61 Space T transformer

Claims (7)

A frame having a convex front surface formed with a wiring recess extending in the vertical direction; a plurality of circuit breakers attached to the front surface with a load side terminal facing the wiring recess; and the frame A switchboard comprising: a connection body disposed on a back side of the front portion of the body and connected to a power supply side terminal of the circuit breaker. The switchboard according to claim 1, further comprising a transformer housing frame that houses a transformer whose load side is connected to the connection body. The switchboard according to claim 2, wherein the transformer housing frame is connected to a rear side of the frame, and the transformer in the transformer housing frame is directly installed on a floor surface. The switchboard according to claim 2, wherein the transformer housing frame is disposed on the rear side of the frame via a working space. The switchboard according to claim 2, wherein the transformer housing frame is disposed side by side with the frame. A transformer housing frame installed on the floor so as to accommodate a transformer installed on the floor; a box frame provided on the front surface of the transformer housing frame and narrower than the front surface; and the box frame A plurality of circuit breakers provided on the front surface of the unit, and a connection body disposed inside the box frame unit and connected to a power supply side terminal of the circuit breaker, A switchboard in which the front surface of the transformer housing frame is a wiring recess, and each load-side terminal of the circuit breaker is directed to the wiring recess. The switchboard according to claim 1, wherein the wiring recess has a cable support.

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