JPS59123408A - Substation facility - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to substation equipment, and particularly to a substation in which a conventional air-insulated switchgear installed outdoors and a gas-insulated switchgear installed indoors coexist. This relates to improving the layout of equipment.

[Technical background of the invention]

FIG. 1 is a single-line diagram showing the configuration of a typical substation facility connected by an overhead power transmission line. Also,
FIG. 2 is an elevation view of the conventional layout of each device shown in FIG. 1, and a third factor is a plan view thereof. In the figure, the lead-in tower 1 (equipment with air insulation placed above the ground through the insulator of the two-speed electric line).

Lightning arrester 102, 202, instrument transformer 103゜203,
Line trap (blocking coil) 104.204
Through the air bushing 1 of outdoor type gas insulated switchgear
Connected to 05,205. In addition, it is connected by a cable to the main transformers 113 and 213 housed in the cell 14 across the loading road 13, and the tertiary circuit of the main transformer is connected to the cell 14.
It can be stored in 5C or in Acudle (134°234), 3
The secondary circuit is connected via the secondary circuit breakers 132 and 232, and the secondary circuit is connected by a cable to an indoor gas-insulated switchgear placed across the loading road 16. The explanation of the other 5 equipment will be omitted, but the arrangement to the north is the conventional general layout.

[Problems with background technology]

As mentioned above, the conventional layout requires a large site and increases building and civil engineering costs, making it an extremely uneconomical layout.

[Purpose of the invention]

The present invention was made in consideration of the above circumstances, and
The purpose is to provide substation equipment with a rational and economical layout configuration that can reduce the site area within the substation premises and reduce the cost of civil engineering and construction.

[Summary of the invention]

In order to achieve the above object, the present invention provides an air-insulated switchgear and a gas-insulated switchgear installed outdoors,
Substation equipment consisting of a transformer installed in a cell and a gas-insulated switchgear installed indoors (= in the above-mentioned air-insulated switchgear and gas-insulated switchgear installed outdoors) It is characterized in that it is arranged in a transformer cell house E, which is constructed using one side wall of a building that houses the transformer.

[Embodiments of the invention]

The present invention will be described below with reference to an embodiment shown in the drawings. 4 and 5 show an example of the layout configuration of the substation equipment according to the present invention in an elevation view and a plan view, and the same parts as in FIGS. 1 to 3 are given the same reference numerals. Shown.

The cell 14 of the main transformer 113, 213 is formed using one side wall in the longitudinal direction of the building 17 that houses the indoor gas insulated switchgear 20 on the secondary side of the main transformer 113, 213. , the ceiling of this cell 14 is utilized to arrange instrument transformers 103, 203 such as outdoor gas insulated switchgear 300 on the primary side of main transformer 113, 213 and lightning arrester 1o2゜202 of air insulated equipment. do. Furthermore, the metal clad chamber 15k, the reactor chamber 15C, and the auxiliary power transformer chamber 15B, which are devices of the tertiary circuit of the L soil transformer 1' 13 and 273, are arranged on both sides of the main transformer chamber 14.

On the other hand, the lead-in steel tower 11 is arranged so as to straddle the main transformer cell 14 at a position where it is easy to connect the devices forming the main transformer primary circuit. In addition, the service lines 101 and 201 and the lightning arrester 1
02,202, blocking coil 104,204.
The instrument transformers 103, 203 and the outdoor gas insulated switchgear SOO of their primary circuits are connected by an air bus conductor. Furthermore, the outdoor type gas insulated switchgear 300 of the primary circuit mentioned above and the main transformer 113° 213 are directly connected by the gas insulated busbars 112, 212, and the indoor type gas insulated switchgear 300 of the main transformer 113, 213 and its secondary circuit are directly connected by the gas insulated busbars 112, 212. It can also be connected to the switchgear 20 by a gas bus. (If it is difficult to connect the gas bus bar due to the arrangement of both devices, you may connect it with a cable.) In addition, the metal clad 131° 231, the reactor 133, which is the tertiary circuit equipment of the main transformers 213, 213, 23
3. The auxiliary power supply Jakuta devices 132 and 232 are connected by cables and pulls. Second, the control and protection panels on the primary circuit side of the main transformer are combined together with the control and protection panels on the secondary circuit side in a shared control room 27A.

If the substation equipment 1-8 has such a layout configuration, the following effects can be obtained compared to those with a conventional layout.

(a) When considering a specific example of a primary 230I (V, secondary 132KV (7) system), the conventional layout has 64
rnx 62m = 3968mt (100%), but with this layout configuration, the area required is 62m = 3968mt (100%).
4 mx 36 m=2304'rr? (58%), making it possible to reduce the site area by approximately 40%.

fbl Also, by reusing one side wall of the building on the 132KV side, and by sharing the attached and equipment control room on the 230KV side, the control room (!:) construction materials can be reduced by approximately 30 inches.

(Since the C1230KV side equipment and 132KV side equipment are placed close to each other without interfering with the road, it is not only possible to reduce the cables between the equipment or the materials for the connection busbar by about 20 to 30 cm. By eliminating the difficult construction work of laying cables through roads, it becomes possible to significantly reduce construction costs.

(The road 16 leading in and out of d+9 can be eliminated, and the number of roads in one direction can be reduced by compressing the site, so the amount of civil engineering materials used can be reduced by about 40 cm.) The invention is not limited to the embodiment described in L. For example, as shown in factor 6, the tertiary circuit of the main transformer 113. Also, the same effects as in the above embodiment can be obtained.

In addition, the control room 27A may be placed on the opposite side of the fifth wall, or at an appropriate location in the building that houses the secondary circuit equipment (-
Even if you move, you can get the same effect.

〔Effect of the invention〕

As explained, according to the present invention, it is possible to provide electrical equipment with a rational and economical layout configuration that can reduce the site area within a substation and reduce the cost of civil engineering and construction.

[Brief explanation of drawings]

Figure 1 is a single-line diagram showing the configuration of a typical substation equipment, Figures 2 and 3 are elevation views and plan views showing examples of layout configurations using conventional methods, and Figures 4 and 5 are zero-speed diagrams. FIG. 6 is an elevation view and a plan view showing one embodiment of the invention; FIG. 6 is a plan view showing another embodiment of the present invention;

Claims (1)

[Claims] Substation equipment that connects the air-insulated switchgear and gas-insulated switchgear installed in the cell, the transformer installed in the cell, and the gas-insulated switchgear installed inside the cell. In this case, the air-insulated switchgear and gas-insulated switchgear installed outdoors are installed in a transformer cell configured using one side wall of a building housing the gas-insulated switchgear installed indoors. Substation equipment characterized by being located on the rooftop.