JPH03190511A - Gas insulated substation - Google Patents

Abstract

PURPOSE:To reduce the installation space of an equipment by housing a plurality of transformer main units and a primary side switchgear main unit in a same vessel and sealing it with SF6 gas while sectioning each transformer main unit by a partition. CONSTITUTION:A primary side switchgear main unit 2 and a plurality of transformer main units 3 are housed in a vessel 1 sealed with SF6, gas, while each transformer main unit 3 is arranged in a single row with a partition 4 provided therebetween. A secondary side switchgear is connected to the side of the transformer main unit 3 of the vessel 1 through a duct, and a cooling device of the transformer main unit 3 is arranged in an upper part thereof. Further the primary side switchgear main unit 2 and the transformer main unit 3 are supported respectively by upper part covers 7, 8 while connected through a contactor detachable from a main circuit. In this way, operation and inspection can be facilitated and installation space can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to gas-insulated substation equipment that includes a primary switchgear, a transformer, a secondary switchgear, and the like.

[Prior Art] An example of conventional substation equipment is shown in FIGS. 5 and 6. Fifth
The figure is a plan view, and FIG. 6 is a side view.

A primary side switchgear 13, one transformer 14, and a secondary side switchgear 15 are housed in independent containers, and are connected via a duct 16 and a duct 10. In addition, in conventional substation equipment in which the cooling device 5 of the transformer 14 is installed above the secondary side switchgear 15, the two transformers 14 and the associated primary side switchgear are connected to and attached to the two transformers 14 as described above. Device 13. Secondary side 8 closing device 15. Alternatively, if the equipment such as the cooling device 5 is made into one unit, and there are a plurality of transformers 14, a plurality of the units are installed according to the number of transformers 14, and the primary side switchgear 13 and the secondary Opening/closing devices such as the next-side opening/closing device 15 usually have a large number of operating devices, and a space for carrying out inspection and operation is provided between each unit.

[The problem that the invention attempts to solve! H] In this way, in conventional substation equipment, each transformer is unitized, so when there are multiple transformers, each unit is installed separately, and the switchgear is inspected on the unit surface. , it was necessary to provide operation space, which was an issue when downsizing the entire substation.

[Means for Solving the Problems] In the present invention, a plurality of transformer bodies and a primary side switchgear body are housed in the same container, and SF6 gas is filled therein as an insulating medium. are separated by partition walls.

Here, multiple transformer bodies are arranged in a row, and on one side of the row,
It is also possible to have a configuration in which the primary side opening/closing device main body is arranged, and the secondary side opening/closing device directly connected to the container storing these devices is arranged on the other side of the row. Further, the transformer main body and the primary side 8 closing device main body are each connected to the main circuit via a detachable contactor, and it is desirable that each of them be able to be pulled out upward.

[Function] In the gas clamping substation equipment configured as described above, the primary side switchgear, which has a large number of operating devices that require operation 9 inspection most frequently, is separately installed for each transformer. Instead of placing them, they will be placed in a concentrated manner. Furthermore, since Va is provided for each transformer body, failures do not spread between transformer bodies. Furthermore, like the primary switchgear, the secondary switchgear, which has a large number of operating devices, is also being arranged in a concentrated manner. Furthermore, even in the unlikely event that the transformer main body or the primary side switchgear main body breaks down, it will be possible to pull it out upward for inspection and repair.

[Example] An example of the present invention will be described in detail based on FIGS. 1 to 4. Figure 1 is a plan view, Figures 2 and 30 are elevation views,
FIG.

The primary side switchgear main body 2 and the plurality of transformer main bodies 3 are
The transformer bodies 3 are housed in a container 1 filled with 6 gases, and each transformer body 3 is arranged in a line and has a partition wall 4 on its surface.

Further, the secondary side switching device 6 is connected to the transformer main body 3 side of the container 1 via a duct 10, and a cooling device 5 for the transformer main body 3 is arranged above it.

Furthermore, the primary side switchgear main body 2 and the transformer main body 3 are
are supported by the upper lids 7 and 8, respectively, and are connected to the main circuit 9 via contactors (not shown) that are detachable.
It is connected.

Further, 11 and 12 are an insertion device for the primary side switching device and an operating device for the secondary side switching device, respectively, and 13 is an electric cable.

FIG. 4 is a plan view of another embodiment. Here, a partition wall 4a is provided for each transformer main body 3, and 5. Primary side 1jfl
A partition wall 4b is also provided on the surfaces of the closing device main body 2 and the transformer main body 3.

[Effects of the Invention] Since the present invention is configured as described above, it produces effects as described below.

A plurality of transformer bodies and the primary side switchgear body are housed in one container, allowing the equipment installation space to be greatly reduced. At this time, since a partition is provided between each transformer body, even if a failure occurs in one transformer body, the failure will not spread to other transformer bodies.

In addition, the primary side switchgear and secondary side switchgear, which have a large number of operating devices that need to be inspected most frequently, are centrally located on both sides of the transformer body, making it possible to decentralize them. Compared to the conventional arrangement, the space for operation 9 inspection can be reduced, and operation 9 inspection can be performed more easily.

Furthermore, because the secondary side switchgear is smaller in height than the primary side switchgear and transformer, there is a dead space above the secondary side switchgear, and by placing the transformer cooling device here, The installation space can be further reduced.

Finally, the primary switchgear body and the transformer body are connected to the main circuit by removable contacts, and each is supported by the upper lid, so they can be pulled out upwards for inspection and inspection. Replacement can be done easily.

[Brief explanation of drawings]

FIG. 1 is a plan view of the gas-insulated substation equipment according to the present invention, FIGS. 2 and 3 are elevational views and side views of FIG. 1, and FIG. 4 is a plan view showing another embodiment. The figure N5 is a plan view of a conventional gas clamping substation equipment, and FIG. 6 is an elevational view of FIG. 5. 1: Container 2 primary side opening/closing device main body

Claims (4)

[Claims] (1) In gas-insulated substation equipment in which a primary side switchgear body and a transformer body are housed in the same container, a plurality of transformer bodies are housed in the container and are connected to the primary side switchgear body. Gas-insulated substation equipment characterized by having a partition wall between each transformer body. (2) The plurality of transformer bodies are arranged in a row, with the primary side switchgear body arranged on one side of the row, and directly connected to a container housing the transformer bodies on the other side of the row. 2. The gas insulated substation equipment according to claim 1, further comprising a secondary side switchgear. (3) The gas-insulated substation equipment according to claim (2), wherein a cooling device for the transformer main body is disposed above the secondary side switchgear. (4) The transformer main body and the primary side switchgear main body are each connected to the main circuit via a removable contactor, and each can be pulled out upwardly. ), (2) or (3) the gas insulated substation equipment.