JPH0819125A - Switchgear - Google Patents

Abstract

PURPOSE:To prevent the rise of the temperature of a transformer by reducing an installing space and eliminating the wiring work of an external cable. CONSTITUTION:The switchgear comprises a partition plate 13 for partitioning a switchgear body 11 into an upper stage containing chamber 24 and a lower stage containing chamber 15, a circuit breaker 5 disposed at the front part in the chamber 14, a transformer 8 disposed at the rear part in the chamber 15, a ventilating hole 18 passed through the rear part of the plate 13, a ventilating box 20 with a fan provided at an exhaust port 19 of the rear of the top plate 12 of the body 11, a cassette type filter 22 detachably provided at the ventilating hole 21 of the rear of the bottom plate of the chamber 15, and an inspection passage provided substantially at the same height as the plate 13 at the front and rear surfaces of the body 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchgear for installing a plurality of switchgear bodies on a roof of a building, a department store or the like.

[0002]

2. Description of the Related Art A conventional switchgear installed on a rooftop of a building, department store, etc. has a structure shown in FIGS. In these figures, 1 is a plurality of high-voltage feeder boards arranged in a horizontal row on a base 2, 3 is a top plate of the high-voltage feeder board 1, and 4 is a left-side high-voltage feeder board 1
The high-voltage feeder board 1 which is the bus bar drawn into
Have been pulled out. Two circuit breakers 5 are provided on each high-voltage feeder board 1 and connected to the bus bar 4. 6 is a plurality of transformer panels arranged in a horizontal row on the base 2, 7 is a top panel of the transformer panel 6, 8 is a transformer disposed on the transformer panel 6, and 9 is a high voltage on the left end. It is a cable pulled out from the circuit breaker 5 of the feeder board 1 to the outside, and is the transformer board 6 at the left end.
And connects the bus bar 4 to the primary side of the transformer 8. A plurality of wiring breakers 10 are connected to the secondary side of each transformer 8, respectively.

[0003]

In the case of the conventional switchgear described above, since the high-voltage feeder board 1 and the transformer board 6 are separated, a space for installing the high-voltage feeder board 1 and the transformer board 6 is required. Moreover, the bus bar 4 of the high-voltage feeder board 1
In order to connect the transformer 9 and the primary side of the transformer 8 of the transformer panel 6, external wiring work of the cable 9 is required. The present invention has been made in view of the above points, and an object thereof is to provide a switchgear that reduces the installation space, eliminates the need for external cable wiring work, and prevents the temperature rise of the transformer.

[0004]

In order to solve the above-mentioned problems, a switchgear according to the present invention comprises a partition plate for partitioning the switchgear body into an upper storage chamber and a lower storage chamber, and a front portion of the upper storage chamber. , A transformer installed in the rear part of the lower storage room, a ventilation hole penetrating in the rear part of the partition plate, and a fan installed in the exhaust port in the rear part of the top plate of the main body. Attached ventilation box, cassette type filter that is detachably installed in the intake port at the rear part of the bottom plate of the lower storage room, and inspection passage provided on the front and rear surfaces of the main body at the same height as the partition plate. It is equipped with and.

[0005]

In the switchgear of the present invention constructed as described above, the inside of the switchgear body is divided into the upper storage chamber and the lower storage chamber by the partition plate, and the circuit breaker is arranged in the front part of the upper storage chamber to provide the lower stage. Since the transformer is arranged in the rear part of the storage chamber, the circuit breaker and the transformer can be stored in one switchgear body, the installation space can be greatly reduced, and an external cable is not required. Furthermore, a ventilation hole is provided through the rear of the partition plate, a ventilation box with a fan is installed at the exhaust port at the rear of the top plate of the main unit, and a cassette filter can be freely attached to and removed from the intake at the rear of the bottom plate of the lower storage chamber. Since it is provided, the temperature rise of the transformer due to heat generation can be prevented, the dustproof effect of the intake port can be obtained, and the filter can be easily replaced. In addition, since the inspection passage is provided on the front and rear surfaces of the main body at a position almost at the same height as the partition plate, the upper storage chamber can be inspected.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment will be described with reference to FIGS. In these drawings, the same reference numerals as those in FIGS. 6 and 8 indicate the same or corresponding ones, and the different points are as follows. Reference numeral 11 denotes a plurality of switchgear main bodies arranged on the base 2 in the left-right direction, 12 a top plate of the main body 11, and 13 a partition plate for partitioning the main body 11 into an upper storage chamber 14 and a lower storage chamber 15. , 16 are doors, which are provided on the front and rear surfaces of the upper storage chamber 14 and the front and rear surfaces of the lower storage chamber 15 so as to be openable and closable. Two circuit breakers 5 are arranged side by side in the left-right direction in the front part of the upper storage chamber 14.
The transformer 8 is arranged in the rear part of the lower storage chamber 15, the wiring breaker 10 is arranged in the front part of the lower storage chamber 15, and the bus bar 4 and the transformer 8 are connected by the internally wired conductor 17. The next side is connected.

Reference numeral 18 is a partition plate 13 above the transformer 8, that is, a ventilation hole formed in the rear portion of the partition plate 13, and 19 is a transformer 8.
Of the upper plate 12, that is, an exhaust port formed in the rear portion of the top plate 12, 20 is a ventilation box with a fan provided in the exhaust port 19, and 21 is a bottom plate of the lower storage chamber 15 below the transformer 8. The formed intake port, 22 is a cassette type filter detachably provided in the intake port 21, 23 is a support member fixed to the front and rear surfaces of the main body 11 at substantially the same height as the partition plate 2,
Reference numeral 4 denotes an inspection passage which is attached to the support body 23 and inspects the inside of the upper storage chamber 14.

Then, the heat of the transformer 8 rises to the upper storage chamber 14 through the ventilation hole 18 by the ventilation from the intake port 21, and is exhausted to the outside by the ventilation box 20 through the exhaust port 19. Therefore, the temperature rise of the transformer 8 due to heat generation is prevented. Further, the cassette type filter 22 provides a dustproof effect on the intake port 21, and the filter 22 can be easily replaced. In addition, the capacity and size of the transformer 8 can be unified to reduce the dead space of the main body 11. When the capacity of the transformer 8 is insufficient, the transformer 8 is connected in parallel. At this time, an empty space is created in the upper storage room 14, and the empty space is effectively used as a storage space for auxiliary equipment, such as instrument transformers, lightning arresters, disconnecting switches, etc., as a replacement space for replacement of electric parts, etc. Can be utilized.

[0009]

Since the present invention is constructed as described above, it has the following effects. The switchgear according to the present invention includes a switchgear main body 11 by a partition plate 13.
The inside is divided into an upper storage chamber 14 and a lower storage chamber 15, and a circuit breaker 5 is arranged in the front portion of the upper storage chamber 14 so that the lower storage chamber 15
Since the transformer 8 is arranged in the rear part of the inside, the circuit breaker 5 and the transformer 8 can be housed in one switchgear body 11, and the installation space can be greatly reduced. The external cable 9 can be eliminated.

Further, a ventilation hole 18 is provided through the rear part of the partition plate 13, a ventilation box 20 with a fan is provided at an exhaust port 19 at the rear part of the top plate 12 of the main body 11, and a rear part of the bottom plate of the lower storage chamber 15 is provided. Since the cassette type filter 22 is detachably provided at the intake port 21, the temperature rise of the transformer 8 due to heat generation can be prevented and the dustproof effect of the intake port 21 can be obtained, and the filter 22 can be easily replaced. You can Moreover, since the inspection passage 24 is provided on the front surface and the rear surface of the main body 11 at a position substantially the same height as the partition plate 13, the upper storage chamber 1
4 inspections can be performed.

[Brief description of drawings]

FIG. 1 is a schematic right side view of a portion of one embodiment of the present invention.

FIG. 2 is a schematic front view of a part of FIG.

FIG. 3 is a right side view of the whole one embodiment of the present invention.

FIG. 4 is a front view of FIG. 3;

5 is a circuit diagram of FIG. 1. FIG.

FIG. 6 is a right side view of a conventional high-pressure feeder board.

FIG. 7 is a right side view of a conventional transformer panel.

FIG. 8 is a circuit diagram of FIGS. 6 and 7.

[Explanation of symbols]

 5 Circuit breaker 8 Transformer 11 Switchgear main body 12 Top plate 13 Partition plate 14 Upper storage room 15 Lower storage room 18 Ventilation hole 19 Exhaust port 20 Ventilation box 21 Inlet port 22 Cassette filter 24 Inspection passage

Claims (1)

[Claims] 1. A partition plate for partitioning the inside of the switchgear body into an upper storage chamber and a lower storage chamber, a circuit breaker disposed in a front portion of the upper storage chamber, and a rear portion of the lower storage chamber. A transformer, a ventilation hole transparently provided in the rear part of the partition plate, a ventilation box with a fan provided in the exhaust port at the rear part of the top plate of the main body, and a rear part of the bottom plate of the lower storage chamber. A switchgear provided with a cassette type filter detachably attached to a ventilation port, and an inspection passage provided on the front surface and the rear surface of the main body at a position substantially the same height as the partition plate.