JPS58179109A - Bus sorting gas insulated switching 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 The present invention relates to the configuration of a gas insulated switchgear for busbar sections.

When configuring a substation, etc. using buses of the same system, each line for power transmission, power reception, transformer, bus connection, etc. is separated from the bus, so they are placed orthogonal to the bus. Only the bus line segmentation line is inserted in series with the bus bar, so that it is placed in parallel to the bus bar. However, from the point of view of economy, the reduction effect of standard components such as breakers and disconnectors for gas-insulated switchgear has been discovered under conditions where they are arranged orthogonally to the busbar, which is the overwhelming majority of the components, and inspection procedures have also been improved. Since the lines are organized in a manner that pursues ease of handling including ease of use and operability, the configuration of the line for bus division is
Efforts were made to use auxiliary busbars as seen in No. 38 and Japanese Patent Application Laid-Open No. 55-83406, or to bend the busbars. However, in both cases, the line section for dividing the bus bar lacks harmony with other lines, spoiling the aesthetic appearance of the entire substation.

This invention eliminates the above-mentioned conventional drawbacks and combines standard components, that is, components placed at right angles to the busbar, and fewer special components, thereby achieving a busbar separation gas that harmonizes with other circuits and reduces aesthetic deterioration. The purpose is to provide insulated switchgear.

According to the present invention, the above-mentioned object is a gas-insulated switchgear for busbar section which is configured with a circuit breaker housed in a cylindrical container, in which the circuit breaker is arranged horizontally, and the circuit breaker is connected to both sides of the circuit breaker. This is achieved by constructing each of the busbars with a common busbar container in which the sections are housed and which is arranged horizontally on the negative side of the breaker and at right angles thereto.

Embodiments of the present invention will be described below based on the drawings. First, FIG. 1 is a single line diagram of only the main parts of a single-bus substation, and FIGS. 2 to 7 are constructed from FIG. 1. An example of a gas insulated switchgear for a busbar section is shown together with one side of a similarly configured gas insulated switchgear for a power transmission line. In Figure 1, bus 2 is aa, 2 for bus segment line 1.
A current transformer 4 (
! .

4b and disconnectors 5α and 5b.

The power transmission line 6 has the same configuration on both sides of the diagram, with busbars 2a,
Disconnector 7 from the 2b side. Circuit breaker8. Disconnector 9゜Current transformer 1
0 and an outgoing bushing 11, and grounding devices 12cL and 12A are provided on both sides of the breaker 8, respectively. Next, in FIGS. 2 to 7, this gas insulated switchgear is constructed such that only the bus bar is of a three-phase wire type, and the other components are of a three-phase separated type. And bus line section line 1
The gas insulating device for this purpose includes a busbar tube 13 in which each phase of divided busbars 2α and 2A is housed together in a facing arrangement, and the division points between the same phases are arranged adjacent to each other, and The disconnector 5eL is connected to the opening 13tL on the bus bar 2eL side, which is installed at each of the three phases of the in-phase dividing point.

Current transformer 41E, L/ and disconnector 3. Current transformer 4A, disconnector 5b
and two connecting pipes 14 and 15 connected to the opening 13b on the bus bar 2b side.The breaker 3 is arranged horizontally, and the connecting pipe 14 is installed so that the upper side of the breaker 3 is folded back. .

Gas insulated switchgear for one-way single-line 6 is constructed only by a combination of standard components, which is the main 4I2eL
A three-phase, curved busbar tube 16 in which a three-phase coiled busbar tube 16 is housed, and a disconnector 7 installed at each phase opening provided on the busbar tube 16
Grounding device 12α, breaker 8. Earthing device lzb,
It consists of a current transformer 10° bushing 11 attached via a disconnector 9 and a bushing connection pipe 17, and the breaker 8 is arranged horizontally like the breaker 3 of the bus section line 1.

The gas insulated switchgear for the busbar section line 1 is composed of a circuit breaker 3I and a current transformer 4g.

As is clear from the diagram, the components such as the 4BL disconnectors 5α and 5b have different rated currents, but they are all the same type as the breaker 8I disconnector 7.9I current transformer 10 of the gas-insulated switchgear for the power transmission line 6. Connecting pipe 14.15 is adopted.
Standard pipes used for connection with ordinary transformers, etc. are also used, and the special components include bus pipe 1.
There are only 3. In addition, in terms of the overall shape of the device, the device for the busbar section line 1 does not look strange or detract from the aesthetics, as is obvious when compared with, for example, the power transmission line 6.

Next, another embodiment of the present invention in which it is applied to a double busbar system will be described with reference to FIGS. 8 to 14. FIG. 8 is a single-line diagram corresponding to FIG. 1 in the above embodiment, and FIGS. 9 to 14 show only one side including the busbar section of the substation constructed based on FIG. 8. In this explanation, only the parts that are different from the previous embodiment will be described, and other corresponding parts will be omitted by giving the same reference numerals. The difference is that the bus bar 20 is arranged in parallel with the bus bar 2 to form a double bus bar, and the bus bar 20 that is arranged in parallel is also connected to the bus bar 1lA2o.
A bus line division line 2 that divides into tL and 20A, a bus line communication line 2z that connects both buses z and 20, and a power transmission line! 6
This means that power can be transmitted from both busbars 2 and 20. The gas insulated switchgear for the bus segment line 21 is installed adjacent to the bus segment line 1, and during installation, dummy bus bars 23 for one line are inserted alternately into each of both buses 2 and 20. In addition, the connection pipe 24 is longer than the connection pipe 14 because it is necessary to straddle the bus 2 at a location different from that for the busbar division line 1 in the configuration, and the connection pipe 29 is installed between the breaker 3 and the current transformer 4α. is inserted. Bus line connection! The gas insulated switchgear for 1122 is connected to a current transformer via a busbar tube 16 in which both busbars 2α and 20cL are housed, and a disconnector 26α installed at each phase opening on the busbar tube 16 on the busbar 2tL side. 27α
, circuit breaker28. Current transformer 27b, disconnector 26b, bus bar 2
Connecting pipes 29.30 connected to each of the phase openings on the busbar pipe 16 on the 0α side and grounding devices 31g on both sides of the breaker 28.

31b, and the circuit breaker 28 is arranged horizontally. The gas insulated switchgear for the power transmission line 6 includes both busbars 2a,
The structure is similar to that of the embodiment shown in FIG. 1, with disconnectors 7α and 7A installed at the respective phase openings on the busbar tube 16 in which the busbar tubes 20α and 20α are housed, respectively.

In the above configuration, the gas insulated switchgear for the busbar division circuits 1 and 21 in this substation equipment has only the busbar tube 13 as a special component, as in the case of the single busbar shown in FIG. Compared to other line equipment, the overall shape of the equipment does not look strange, and the line of sight is not lost.

In each of the above embodiments, the busbar is of a three-phase-talk type, and the line equipment is of a phase-separated type, but it goes without saying that both can be constructed of a three-phase-talk type.

As described above, the present invention can greatly contribute to reducing the site area of substation equipment that is comprised of gas-insulated switchgear and is provided with bus bar sections.

[Brief explanation of the drawing]

Fig. 1 is a single-line diagram showing only the essential parts of an example of a substation with a single busbar and busbar sections, and Fig. 2 is a gas-insulated switchgear for busbar sections of an embodiment of the present invention constructed based on Fig. 1. 3 is a plan view of the device in FIG. 2, FIG. 4 is a view taken in the direction of arrow A in FIG. 2, FIG. 5 is a sectional view taken along the line B-B in FIG. Fig. 5 is an enlarged view of the main parts of Fig. 5, Fig. 7 is a view taken from the O arrow in Fig. 6, Fig. 8 is a single-degree diagram showing only the main parts of an example of a substation with double busbars and bus bar divisions; FIG. 9 is a front view of a gas-insulated switchgear for busbar sections according to another embodiment of the present invention constructed based on FIG. 8, FIG. 10 is a plan view of FIG. 9, and FIG.
A sectional view taken along the line D-D in the figure, Figure 12 is a) C- of Figure 9.
FIG. 13 is a sectional view taken along line IC, FIG. 13 is a sectional view taken along line F-7 in FIG. 9, and FIG. 14 is a view taken along arrow G in FIG. 2, 2a, 2A, 20.20eL, 20A:
Busbar, 3: Breaker, 13: Bus 111F, 14.15
．． 24, connecting pipe. Figure 21 Figure 2 'f11 Figure t'13 Figure 2 712 Figure 14

Claims (1)

[Claims] 1) In a gas insulated switchgear for busbar divisions that is configured with a breaker housed in a cylindrical container, the breaker is arranged horizontally, and each of the busbars connected to both sides of the breaker is divided into 1. A gas insulated switchgear for busbar divisions, characterized in that it comprises a common busbar container which is housed and horizontally arranged on one side of a breaker and perpendicular to the breaker.