JPS58119716A - Gas insulated opening and closing device - 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 l) Technical Field of the Invention The present invention relates to a gas-insulated switchgear that is housed inside a multi-story building and that improves the arrangement of switching units and the configuration of each story.

2) Prior art and its problems When installing a gas insulated switchgear, it is either installed on one flat surface, or a two-story building is built, each with O floors Km. Therefore, even if it is a compact gas insulated switchgear, it will still be a bit expensive if it has multiple circuits.
needed land.

Figure 1 shows a single line diagram for a typical electrical station. A breaker (4) is connected between A and B main buses (1) and (2) via new line switches (5) and (6) for bus selection,
Grounding devices (7) are installed on both sides of the interrupter (4).
(7), and further connect the disconnector (8), current transformer (3),
The opening/closing unit to which the grounding device (7), cable box (9), etc. are connected and surrounded by the 92-dot chain line) A switching device such as device I is also connected.

As shown in Figure 2, the conventional gas-insulated switchgear in such electric stations is composed entirely of gas-insulated equipment, and has multiple lines corresponding to the switchgear unit (it) in Figure 1. They are arranged in the horizontal direction of the main bus lines (1) and (2). Therefore, when there is a need to reduce the site area due to multiple circuits, conventionally, due to the configuration of the busbars, building a two-story building was the limit, and there was a problem that needed to be solved.

3) Purpose of the Invention The present invention has been made in consideration of the above points, and its purpose is to provide a gas insulated switchgear which is economical and can reduce the site area of a compact gas insulated switchgear. The goal is to provide equipment.

4) Structure of the Invention The main bus bar is also used as the main pillar of the structural member of the building, and switchgear units with multiple lines are arranged on each floor in a building with multiple floors to form a multi-tiered structure.

5) Examples of the invention The present invention will be described below with reference to an embodiment shown in the drawings.

The main busbars that make up gas-insulated switchgear are inherently robust, but as shown in Figure 3, the main busbars are slightly more robust than conventional ones. It is configured to also serve as the main pillar in (2).

In addition, as shown in Figures 3 and 4, main bus lines A and B (1
), (1m); (2), (2m) iii
m a'ao Main pillars will be erected vertically at the four corners of the foundation floor (12m). Main bus (1).

(1a) and the main bus bar (2)e (2m) are connected at either the upper or lower end, although not shown, and are formed into the same system. and main bus line +1), (2) and main bus line (im).

(2m) A switchgear member is connected via branch bus 0. Such a switchgear Q (I is each level, that is, 1
The main bus line (
1), (2) There is a switchgear unit (IOAI) between
−(10Aa) t(10A3) =”, birth mother II
(im), (2m) between the switchgear unit (10t)
h) -(IOBs)-- are connected via branch bus members, respectively.

This switchgear unit member selects the main busbars (1), (2) via the new line switches (5), (6) and the branch busbar a3 as shown in Fig. 5, and selects one of the interrupters (4). The other sunrise part (4b) is connected to the cable box (9) via the connection busbar (4c).
Continued. In addition, nine disconnections fl shown in the single line diagram in Figure 1
The iF (8) and the grounding devices (7) and (7) may be connected to the outlet (4b) as a disconnector with a grounding device, but are omitted from illustration.

As mentioned above, the building wheels are main busbars (1), (1m),
(2) and (2m) are used as four main pillars to connect the respective disconnectors (5) and (6) of the switchgear unit fJe on each floor.
A floor member for maintenance and inspection on each floor is supported and fixed through the floor support member (2).

The floor is decorated with decorative walls on all sides, and the structure is designed to harmonize with the surrounding environment. Also, the branch amount -〇 serves as a part of the building structure, for example, as a "strip line."

Figure 4 shows the layout of the first floor, which is erected on the foundation floor (12a) and has a mourner bus line (1) * (Ig) - (2) - (2
Of M), switchgear units (IOAI) will be installed on the main busbars (1) and (2) cabinets, and switchgear units (IOAI) will be installed on the main busbars (la) and (2hata). Figure 6 shows the layout of the second floor, with the switchgear unit on the lower floor indicated by a dotted line between the main bus bars (1) and (2).
) and the switchgear unit (10
people, ). The nine lower floor switchgear units (indicated by dotted lines) (10m1) are opened in the floor, and the nine atriums are located so as to protrude between the sections. In the front, between the main busbars (1m) and (2m), move the switchgear units (101
h). The opening/closing unit on the lower floor is indicated by the dotted line) (
IOBI) is provided with a large open ceiling spaced from the floor αeK, which protrudes from the section (21).

Figure 7 shows the arrangement of the third floor, with the atrium part (21) on the main busbar (2) side being amyo, this atrium leaf part (21) K shown by the protruding dotted line, and the switchgear unit on the lower floor. (10 mu,)
Shift it and place an opening/closing device (IOA) near the birth mother 1m (1) on the left side of the figure. In addition, the floor αeK opening and opening is shown by a dotted line protruding into part (2), and a switchgear on the lower floor (IOB) is installed, shifted to the right side of the figure from the IOB. Like this atrium s@
.

In (21), the switchgear unit members on each lower floor are made to protrude, and the switchgear unit wheels on each floor are arranged in a shifted position, so that multiple floors can be constructed in the same manner as shown in Fig. 3. be able to. In addition, a staircase (not shown) connecting each floor is provided in the large atrium (21).

As mentioned above, the gas insulated switchgear is housed in multi-tiered building A3 on multiple levels, and the main busbar (1) = (1m) is mounted on the pillars of this building α. (2) - (2m), and the branch busbar (13) has the effect of "striping", thereby reducing the cost of the building, and also harmonizing the surrounding environment with the decorative wall. Spraying is part (to),
By forming (21), the spraying is performed by forming part (2), (
The space in (21) makes it easy to pull out each breaker (4), and the position of the switchgear (21) on each floor is shifted and changed, so that the spraying is carried out on the lower floor (1, (21)). By protruding the breaker (4), the height of the building can be made low compared to the number of stacked stacks, and cable wiring can be made easier.In addition, when stacked in multiple stacks like this, K If the number of lines is 15 or more, the site area can be reduced by 8 times compared to the conventional system if the number of lines is 20 or more.

6) Other Embodiments of the Invention Next, embodiments of the invention will be described with reference to nine drawings in which the same parts as in FIGS. 1 and 3 are given the same reference numerals. Main busbar (1),
(1m), (2), and (2m) are also used as the main pillars of building I as in the embodiment of the present invention. Figure 8 shows, for example, the first floor.

It shows the layout configuration on odd-numbered floors such as the 3rd and 5th floors,
FIG. 9 shows the arrangement of even-numbered floors such as the second, fourth, and sixth floors.

In the odd-numbered hierarchy shown in Figure 8, the main bus line (1), (1
m) are arranged diagonally to each other, and similarly main busbars (2),
(m) is also arranged diagonally, and the main bus line (tL (tm)
Comrades and main bus (2), (2m) Comrades are connected on the upper and lower sides (not shown) to form the same system bus. Then, the switchgear unit (IOKl) is connected between the main busbars (1) and (2) via the branch busbar 0.
) near the main bus bar (1).

The switchgear unit (10&) is installed closer to the main bus (1) side via the branch amount WaS between (251) and the main bus (2m
), α), a switchgear unit (IOKm) is installed on the main bus (2m) through the branch amount II (Lm), and a branch bus I is installed between the main bus (1m') and (2). A switchgear (10 to 4) is installed near the main bus (11). In this way, the main busbar (1), (1m).

(2) , (2m) A switchgear unit Q is disposed on each side of the rectangle formed by K.

Moreover, in the even-numbered hierarchy shown in FIG. 9, the main bus line (1).

Leave the positions of (la), (2), and (2m) as they are, and place the switchgear units (IOG, ), (10 false), respectively, in the positions shown in Fig. 8 by turning it over. ), (1
0G4) are arranged via the branch bus I, respectively.

The switchgear (Enin) Ql) has a breaker (4) installed inside the rectangle formed by the main bus bar, and a cable box (9) installed outside. and Figure 8 and 1θ
Taking the example of the switchgear (Hennin) (*) in the figure, the sunrise part (4m) of the breaker (4) is connected to the main bus (1) via the disconnector (5), and the new line switch (6) and branch amount i
The live mother 1m (2a)K is connected via ns. The other outlet (4b) of the breaker (4) is connected to a cable box (9)K via a disconnector (8). The disconnector (8) here includes earthing devices (7), (7), and nine disconnectors with earthing devices are provided.

In Figure 1O, main bus line (1) - (1m), (
2) and (2m) as pillars, and floor support members (2m) are installed on each of them.
) to support and fix the floor canopies, and arrange them into the odd-numbered floors shown in FIG. 8 and the nine-even-numbered floors shown in FIG. 9, and a decorative wall aη is provided around them. The cable (9a) pulled out from the cable box (9) is fixed along the inside of the decorative wall and introduced into the underground cable pit (23)K.

In the above-described configuration, there are four lines per plane due to the quadrilateral arrangement, and the number of layers is small compared to the number of lines. If the number of lines is 15 or more, it will be '/2 compared to the conventional system if the number of lines is 15 or more.
2. In addition, if there are 20 or more lines, the site area can be reduced to 5. Furthermore, branch busbars are placed on all four sides to minimize the effect of "striping", making it possible to construct an even stronger building.

7) Effects of the Invention As explained above, according to the gas insulated switchgear of the present invention, the main busbar is also used as the main pillar of the building, and the branch busbar has a "striping" effect, so that the building Costs can be reduced. By arranging lines on each floor and stacking them in multiple tiers, the site area can be extremely reduced.

[Brief explanation of the drawing]

Fig. 1 is a single-line wiring diagram in a general electrical station, Fig. 2 is a plan view showing a conventional gas-insulated switchgear that constitutes a part of the single-line wiring diagram in Fig. 1, and Fig. 3 is a gas-insulated switchgear according to the present invention. 4 is a plan view showing the first floor of FIG. 3, FIG. 5 is a side view taken along the line v-v in FIG. 4, and FIGS. 6 and 7 are respectively A plan view showing the second and third floors in FIG. 3, and FIGS. 8 to 1θ respectively show other embodiments of the present invention,
FIG. 8 is a plan view of the odd-numbered floors, FIG. 9 is a plan view of the even-numbered floors, and FIG. 10 is a longitudinal sectional view showing the gas-insulated switchgear. fl), (1m) −(2), (2g+)−・
・Main bus, (3)... Current transformer, (4)... Breaker, (5), (6), (8)-- Disconnector, (7)
---Grounding device, (9) ---Cable box, (9
m)...cable, (10). (IOA,), ~(IOAs); (IOBl) ~(
IOB, ); (IOK,) ~ (1 (IQ). (IOG,) ~ (10Ga) --- Switchgear unit,
0...Building, (12m)...Foundation floor, Q3...Branch busbar, (19...Floor support member, (Le...Floor, (
1? )-(II: wrinkled wall, (20), (21),,
, Atrium is part, (23)... Cable pit, Agent Patent attorney Inoue - Male Figure 1 tU. Figure 2 Figure 3 Figure 4 q Figure 5 Figure 7 Figure 8 Figure 10

Claims (3)

[Claims] (1) In a structure in which switchgear units of multiple lines are connected via a main bus bar and housed inside a building having multiple floors, the main bus bar also serves as the main pillar of the building, and each of the switchgear units 9. A gas insulated switchgear characterized in that the gas insulated switchgear is configured to be arranged in each of the layers and stacked in multiple stages. (2) A first main busbar of the same system is placed at both ends of one side of a quadrilateral formed by main busbars placed at the four corners, and a second main busbar of the same system is placed at both ends of the opposite side. Two branch lines are arranged so that the first and second main busbars are on the sides of the quadrilateral located at both ends, and the first and second switchgear units are arranged on these two branch lines, respectively. 2. The gas insulated switchgear according to claim 1, wherein a part of the first and second switchgear units on the lower floor respectively protrudes from an atrium formed in the floor of each floor. (3) The main busbars on the same diagonal of each quadrilateral formed by the four main busbars are formed into the same system, and each side is opened and closed via the branch busbars that are connected by forming each side. 9. The gas insulated switchgear according to claim 1, wherein the switchgear unit of four circuits is disposed on the same plane.