JPH0811011Y2 - Individually distributed power receiving and transforming device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an individual distributed power receiving and transforming device used for receiving and distributing power to a building such as a high-rise building.

<Prior art> As a power receiving and transforming system for buildings such as high-rise buildings, generally, transformers are distributed on each floor to launch high-voltage trunk lines, and low-voltage cables for common areas and each distribution board of each tenant are installed. A high-voltage cable system that shortens the length is used.

And, as a conventional individual distributed type power receiving and transforming device used in such a high voltage cable system, a high voltage branching board, a transformer and a switchboard are provided in a cubicle, and a high voltage branching board and a transformer, and a transformer and a switchboard, respectively. It was configured by connecting.

<Problems to be solved by the invention> However, in the past, the shared partial switchboard was configured as a separate panel, and when performing the wiring work, individual distributed power receiving and transforming devices were installed on each floor, and the switchboard and the shared part were installed. In addition to connecting to the switchboard, it is also necessary to connect within the shared partial switchboard, and also to connect the power meter with the terminal for the power supply of each tenant to the switchboard. There was a drawback that required a lot of work.

In addition, since the wiring work is done in a dusty place on the site, the inside of the switchboard and the shared partial switchboard is contaminated, and it is necessary to clean the switchboard and the shared partial switchboard when the wiring work is completed. The wiring work at the station was even more troublesome.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide an individually distributed power receiving and transforming device that can perform wiring work on the site with less labor.

<Means for Solving the Problem> In order to achieve the above-mentioned object, the present invention provides a high-voltage branch board, a transformer, and a switchboard in a cubicle, and a high-voltage branch board, a transformer, and a transformer. In an individual distributed type power receiving and transforming device in which a power distribution board and a distribution board are respectively connected, a shared partial board and a power meter are provided in a cubicle in a state of being connected to the distribution board.

<Operation> According to the configuration of the individually distributed power receiving and transforming device of the present invention, even if there are various buildings, common electric devices such as electric lights for corridors, toilets, and hot water rooms are common. In addition, paying attention to the fact that each tenant needs an individual electricity meter, etc., at a place other than the construction site such as a factory, with the shared partial electricity board and electricity meter connected to the cubicle with the distribution board , The individual distributed power receiving and transforming device is brought into the field and placed, the high-voltage cable is connected to the high-voltage branching board, and the low-voltage secondary side to the electric equipment as the common part is connected to the common partial switchboard. In addition to connecting the wiring of the above, the wiring of the low voltage secondary side to each tenant can be connected to the wattmeter to perform a series of wiring work.

<Embodiment> Next, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an overall front view showing an embodiment of an individually distributed power receiving and transforming device, and FIG. 2 is a partially cutaway front view showing the inside thereof.

In these figures, 1 is a cubicle, and a transformer 2 is provided in the center of the inside thereof.

Further, a high-voltage branch board 3 is provided on one lateral side of the transformer 2, and a switchboard 4 and a shared partial switchboard 5 are provided on the other one side.

The door 6 covering the front surface of the high-voltage branch board 3 is provided so as to be openable and closable via hinges 7 ... And a handle 8 is attached to the door 6. On the front side of the door 6, a voltmeter changeover switch 9, an ammeter changeover switch 10, a ground fault detector 11 for detecting an internal ground fault of the transformer 2 and a ground fault accident on the low-voltage secondary side, a cable ground fault. Cable section detector 12 that sometimes detects an accident section, earth leakage alarm 13 and thermal relay 14 that detects low voltage earth leakage
Is provided.

On the front surface of the transformer 2, a pair of upper and lower hook-type doors 16 each provided with a vent 15 made of expanded metal are provided.

The front plate 17 that covers the front of the switchboard 4 and the shared partial switchboard 5 has a power meter 18 for shared power, a mounting plate 20 for the power meter 19 for each tenant, and a low-voltage secondary wiring to each tenant. A terminal board 21 for connection is provided.

An air load switch 22 is provided above the transformer 2, and a ground terminal block 23 is provided below the high-voltage branch board 3, while a high-voltage charge switch is provided above the transformer for confirming high-voltage charging. A charge indicator 24 is provided.

As shown in the side view of FIG. 3, channels 25 for connecting the high-voltage cable are provided on the upper and lower sides of the high-voltage branch board 3, respectively, and as shown in the enlarged side view of FIG. The secondary side terminal block 26 is provided, and the primary side terminal blocks 27 are provided above and below the secondary side terminal blocks 26, respectively, and the channels 25, 25 and the primary side terminal block 27 are connected to the high voltage cable 28. Primary side terminal block as well as being connected via
27…, 27… and the secondary side terminal block 26… are connected via the open bar 29, and the cubicle 1 installed on each floor is distributed by the loop distribution system, and the high voltage cables in some sections are It is constructed so that it can be restored in a short time when an accident occurs.

The open bar 29 has a first notch 30 opened in the longitudinal direction at one end side in the longitudinal direction, and at the other end side,
The second notches 31 are formed so as to open in the direction orthogonal to the longitudinal direction.

As shown in FIG. 5 (a partially cutaway arrow view along the line AA in FIG. 4), the primary-side terminal block 27 is formed by folding a flat plate and raising it in an oblique direction. A tightening bolt 32 is provided, and a mounting bolt 33 for the high voltage cable 28 is provided on the other end side. Although not shown, the secondary side terminal block 26 has the same structure.

With these configurations, the first notch 30 is externally fitted to the tightening bolt 32 of the primary side terminal block 27, and is rotated about the same so that the tightening bolt 32a of the secondary side terminal block 26 (see FIG. 3) is obtained. The second notch 33 is externally fitted, and in that state, the tightening bolts 32 and 32a can be tightened and connected. In the figure, K and K indicate keys for opening and closing a predetermined switchboard when an accident occurs in the high voltage cable in a part of the above-mentioned section.

The secondary side terminal block 26 has a cable 34 connected to the transformer 2.
An outlet port 35 and an extension cable outlet port 36 are formed, and are configured so that they can be easily dealt with even at the time of extension.

As shown in each of the side views of FIG. 2 and FIG. 6, the transformer 2 is installed on a carriage 38 having wheels 37 via vibration-proof rubber 39, and is guided on the bottom plate of the cubicle 1. The rail 40 is formed, and fixing brackets 41 ... For fixing to the bottom plate of the cubicle 1 by bolts are integrally connected to the carriage 38.

The cables 42 and 43 connecting the transformer 2, the air load switch 22 and the switchboard 4 are set to be long enough to be pulled out to a predetermined position outside the cubicle 1.

The transformer 2 is installed in the cubicle 1 by installing the drawer base 44 along the bottom plate of the cubicle 1.
It is configured so that the transformer 2 can be easily pulled out to above the drawer stand 44 and the inspection and replacement of the transformer 2 can be performed.

The bottom plate of the cubicle 1 is provided with a stopper 45 that blocks and positions the transformer 2 on the storage side, while the drawer base 44 includes a stopper 46 that blocks movement of the transformer 2 on the drawer side. Is provided.

An exhaust duct 47 for heat dissipation is provided above the transformer 2 on the top plate of the cubicle 1. This exhaust duct
A ventilation fan may be connected to 47.

On the lateral side of the cubicle 1 facing the switchboard 4 and the shared partial switchboard 5, as shown in the side views of FIGS. 7 and 8, a pair of upper and lower iron plates 48a with handles are detachably attached by screws. 48b is installed.

As shown in the connection diagram of FIG. 9, the high voltage branching board 3 connectable to the high voltage cable 28 and the transformer 2 are connected via the air load switch 22 and the cable 42, and the transformer 2
And the switchboard 4 are connected via a cable 43, and the switchboard 4 is connected to the first to seventh wiring breakers 49a, 49b, 49c, 49d, 49.
e, 49f, 49g are provided, the control power source is drawn out via the third wiring breaker 49c, and the fourth wiring breaker 49c is provided.
The shared partial switchboard 5 is connected via d, and the tenant power meter 19 is connected via the fifth to seventh wiring breakers 49e, 49f, 49g.

In addition, fuses 50, 50 and zero-phase current transformers 51, 51 are provided on the switchboard 4.
The connection terminal portion 52 to the central monitoring portion is connected via.

The shared partial switchboard 5 includes electric lights for toilets, hot water chambers, elevator halls, corridors, locker rooms, electric water heaters, stoves, and wiring breakers for various common outlets and spares. Although not shown, the terminals connected to the wiring breakers 53 ...
It is provided so that it can be pulled out from the top plate of the cubicle 1, and the cubicle 1 can be carried in to a predetermined floor and the wiring for the various common parts described above can be connected to the terminal.
It is configured so that wiring work for common areas can be performed easily.

Although not shown, during the period from loading to completion, a large amount of dust is generated due to the construction, and a paper-based filter with a paper-making structure is attached to the outer surface of each of the ventilation holes 15 and 15. It is to prevent dust from entering the cubicle 1.

Reference numeral 54 in the figure denotes a locking handle that locks the hook when it is carried in by a crane or the like.

The first to seventh wiring breakers 49a, 49b, 49c, 49d, 49
Wiring breaker 5 for e, 49f, 49g and various common parts
3 ... Each is provided so as to project from the outer surface of the upper and lower iron plates 48a, 48b.

According to the above-mentioned individual distributed power receiving and transforming device, as described above, not only the connection work at the site becomes easy, but also the work from two of the four lateral faces of the cubicle 1 can be performed.
Repair and inspection can be performed easily. That is, by opening / closing each of the door 6 and the hook type door 16 and moving the transformer 2 in and out, it is possible to perform a repair / inspection on the high voltage part of the high voltage branching board 3 and the transformer 2, and the upper and lower iron plates 48a,
By attaching / detaching 48b, it is possible to perform repair / inspection on the low-voltage part such as the switchboard 4 and the common partial switchboard 5.

In the above-described embodiment, the distribution board of each tenant is connected to the terminal board 21 through a cable, but, for example, the number of electric lights, the number of outlets necessary for connecting office equipment, etc. If the tenant's usage of electrical equipment is known in advance, prepare a distribution board with the required number of connection terminals and a plurality of spares connected to the circuit breaker, and prepare for that. An electric board may be preliminarily provided in the cubicle 1 in a factory or the like and may be connected to the terminal board 21 through a cable,
With this configuration, there is an advantage that the on-site wiring work can be performed more easily.

<Effects of the Invention> According to the individually distributed power receiving and transforming device of the present invention, after the vehicle is brought into the field and installed, the high-voltage cable is connected to the high-voltage branching board, and the electrical equipment as the common part is connected to the common partial board. A series of wiring work can be done just by connecting the wiring to the tenant and the wiring to the electricity meter, without connecting the switchboard to the common partial panel and the electricity meter on site. In addition, it is possible to provide an individual distributed type power receiving and transforming device that can perform the wiring work on the site with extremely low efficiency and extremely efficiently.

In addition, since wiring to the switchboard is not required, the cubicle does not have to be opened during the wiring work, there is no contamination of the switchboard, and there is no need to take care of cleaning after the wiring work is completed. It can be carried out.

[Brief description of drawings]

FIG. 1 shows an embodiment of an individual distributed power receiving and transforming device according to the present invention, and FIG. 1 is an overall front view of the individual distributed power receiving and transforming device.
FIG. 2 is a partially cutaway front view showing the inside, and FIG.
FIG. 4 is a side view showing the high-voltage branching board, FIG. 4 is an enlarged side view of the main part of FIG. 3, FIG. 5 is a partially cutaway arrow view taken along the line AA of FIG. 4, and FIG. FIG. 7 is a side view showing the housing portion of the container, FIG. 7 is an overall side view, FIG. 8 is a side view showing a state in which upper and lower iron plates are removed, and FIG. 1 ... Cubicle 2 ... Transformer 3 ... High-voltage switchboard 4 ... Switchboard 5 ... Common partial switchboard 19 ... Power meter

Front page continuation (72) Inventor Toshihiro Ando 4-1-1 Honmachi, Chuo-ku, Osaka City, Osaka Prefecture Takenaka Corporation Osaka Main Store (72) Inventor Seiichi Ueki 4-chome, Kami Shokakuji, Hirano-ku, Osaka City, Osaka Prefecture 7-45 Seiritsu Kogyo Co., Ltd. (72) Kunio Kawahara 4-74-5 Kami Shokakuji, Hirano-ku, Osaka City, Osaka Prefecture (56) Reference: JP-A-56-148107 (JP, A) ) Actual Development Sho 62-154710 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A high-voltage branch board, a transformer, and a switchboard are provided in a cubicle, and the high-voltage branch board, the transformer, and
In the individual distributed type power receiving and transforming device in which the transformer and the switchboard are respectively connected, a shared partial switchboard and a power meter are provided in the cubicle in a state of being connected to the switchboard. apparatus.