阅读说明：本技术 一种布置220kv的hgis配电装置 (220KV HGIS power distribution device ) 是由 董博文 王亮 况一帆 甄佳宁 刘森 于 2021-08-10 设计创作，主要内容包括：本发明涉及220KV的HGIS配电技术领域,具体涉及一种布置220KV的HGIS配电装置,包括：共用母线a套管BSG1与共用母线b套管BSG2并列设置,母线a和母线b分别设置于共用母线a套管BSG1和共用母线b套管BSG2的外侧,出线a和出线b分别设置于母线a和母线b外侧,其中出线a和出线b的出线回路为上下双层出线型式；本在保证安全可靠运行前提下,实现两回出线对侧布置,一回出线为低位出线,另一回出线为反向经高跨线高位出线,显著压缩220kV配电装置区域占地面积、降低物流成本,节省投资成本并且扩建施工便利可靠。(The invention relates to the technical field of 220KV HGIS power distribution, in particular to a 220KV HGIS power distribution device, which comprises: the common bus a bushing BSG1 and the common bus b bushing BSG2 are arranged in parallel, the bus a and the bus b are respectively arranged at the outer sides of the common bus a bushing BSG1 and the common bus b bushing BSG2, the outgoing line a and the outgoing line b are respectively arranged at the outer sides of the bus a and the bus b, and outgoing line loops of the outgoing line a and the outgoing line b are of an upper-lower double-layer outgoing line type; on the premise of ensuring safe and reliable operation, the arrangement of opposite sides of two outgoing lines is realized, one outgoing line is a low-level outgoing line, the other outgoing line is a reverse high-level outgoing line passing through a high-span line, the area occupied by a 220kV power distribution device is obviously reduced, the logistics cost is reduced, the investment cost is saved, and the extension construction is convenient and reliable.)

1. An HGIS power distribution unit arranged for 220KV, comprising: the common bus a bushing BSG1 (3) and the common bus b bushing BSG2 (4) are arranged in parallel, the bus a (1) and the bus b (2) are respectively arranged above the common bus a bushing BSG1 (3) and the common bus b bushing BSG2 (4), the outgoing line a (5) and the outgoing line b (6) are respectively arranged on the outer sides of the bus a (1) and the bus b (2), and outgoing line loops of the outgoing line a (5) and the outgoing line b (6) are of an upper-lower double-layer outgoing line type.

2. An HGIS power distribution unit arranged to distribute 220KV of claim 1, wherein: a shared bus a bushing BSG1 (3) is arranged in the outgoing line interval a (7), and an outgoing line 1 bus a side disconnecting link DS1 (31) and an outgoing line 2 bus a side disconnecting link DS1 (32) are respectively arranged on two sides of the shared bus a bushing BSG1 (3).

3. An HGIS power distribution unit arranged to distribute 220KV of claim 1, wherein: a common bus b bushing BSG2 (4) and a common bus b bushing BSG2 (4) are arranged in the outgoing line interval b (8),

an outgoing line 1 bus b side disconnecting link DS2 (41) and an outgoing line 2 bus b side disconnecting link DS2 (42) are respectively arranged on the two sides.

4. An HGIS power distribution unit arranged to distribute 220KV of claim 1, wherein: and a plurality of groups of common bus a bushing BSG1 (3) and common bus b bushing BSG2 (4) are respectively arranged in the outgoing line interval a (7) and the outgoing line interval b (8).

5. An HGIS power distribution unit arranged to distribute 220KV of claim 1, wherein: the outgoing line 1 bus bar a side disconnecting link DS1 (31) is connected with the outgoing line 1 bus bar b side disconnecting link DS2 (41) through the GIL3 bus bar (9).

6. An HGIS power distribution unit arranged to distribute 220KV of claim 1, wherein: the outgoing 2 bus bar a side knife switch DS1 (32) passes through the GIL3 bus bar (9) and the outgoing 2 bus bar b side knife switch DS2 (42).

7. An HGIS power distribution unit arranged to distribute 220KV of claim 1, wherein: and the outer sides of the outgoing line interval a (7) and the outgoing line interval b (8) are respectively provided with outgoing line sleeves (10), and the outgoing line sleeves (10) are three and are independently separated.

Technical Field

The invention relates to the technical field of 220KV HGIS power distribution, in particular to a 220KV HGIS power distribution device.

Background

In recent years, in a power system transformer substation, due to the influences of factors such as environment, occupied area and economic indexes, composite gas insulated switchgear (HGIS) is increasingly adopted in 220kV power distribution equipment;

a composite gas-insulated combined switch device (HGIS) is formed by sealing primary devices such as a circuit breaker (GCB), a Disconnecting Switch (DS), a grounding switch (ES), a quick grounding switch (FES), a Current Transformer (CT) and the like in a metal shell by adopting an open suspension type pipe bus in a 220kV distribution device, and filling SF6 gas in the primary devices for insulation, wherein the bus grounding switch, a lightning arrester and the voltage transformer can be arranged in the HGIS device or externally arranged by adopting an open device.

The HGIS equipment does not comprise a bus unit, so that the high-reliability high-safety HGIS equipment has high reliability and high safety, can realize product miniaturization and modularization, can realize factory production and assembly, and accords with the design concept of an assembled substation. Each HGIS equipment is independent each other in the distribution unit district, and the troubleshooting of an equipment can not lead to the generating line to stop entirely, and extension interval HGIS equipment need not be connected with original HGIS equipment simultaneously, therefore extension engineering equipment's purchase source is extensive, does not have the single source problem of GIS equipment extension. In the arrangement structure of the conventional 220kV HGIS power distribution device, when the number of outgoing lines of a transformer substation 220kV is 4 or more, the 220kV power distribution device is suitable for double-bus wiring, and can be divided into medium-sized arrangement of a support type tubular bus and medium-sized arrangement of a suspension type tubular bus according to different forms of the 220kV tubular bus.

In the arrangement mode of a conventional 220kV power distribution device, an HGIS power distribution device is generally arranged in a double-row mode; the arrangement mode is as follows: all outgoing lines are arranged on the side close to the enclosure wall at intervals and are arranged in a row, meanwhile, incoming line intervals, bus coupling intervals, bus PT intervals and the like are arranged on the opposite side of the outgoing line intervals, subsection intervals are arranged in the middle, namely, the outgoing lines are arranged in a row at intervals, other rows are arranged at intervals, and the arrangement effect diagram is shown in the attached drawing 1; in the HGIS double-row arrangement scheme, in order to meet the requirement of 220kV outgoing lines, all outgoing line intervals can be arranged on the side close to the enclosing wall, and other outgoing line intervals are arranged on the opposite side of the outgoing line intervals. Meanwhile, the transverse size of the distribution device must meet the requirement of the number of all outgoing lines, so that the steel quantity of the 220kV distribution device framework is wasted, the total investment cost of the transformer substation is higher, and the social and economic benefits are poor.

Disclosure of Invention

Aiming at the defects, the invention provides a 220kV HGIS power distribution arrangement scheme on the premise of ensuring safe and reliable operation, and realizes opposite side arrangement of two return outgoing lines, wherein one return outgoing line is a low-level outgoing line, and the other return outgoing line is a high-level outgoing line passing through a high overline in a reverse direction, so that the area occupied by a 220kV power distribution device area is obviously reduced, the logistics cost is reduced, the investment cost is saved, and the extension construction is convenient and reliable.

In order to achieve the purpose, the invention provides the following technical scheme:

an HGIS power distribution unit arranged for 220KV comprising: the common bus a bushing BSG1 (3) and the common bus b bushing BSG2 (4) are arranged in parallel, the bus a (1) and the bus b (2) are respectively arranged above the common bus a bushing BSG1 (3) and the common bus b bushing BSG2 (4), the outgoing line a (5) and the outgoing line b (6) are respectively arranged on the outer sides of the bus a (1) and the bus b (2), and outgoing line loops of the outgoing line a (5) and the outgoing line b (6) are of an upper-lower double-layer outgoing line type.

The technical scheme of the invention is further improved as follows: a shared bus a bushing BSG1 (3) is arranged in the outgoing line interval a (7), and an outgoing line 1 bus a side disconnecting link DS1 (31) and an outgoing line 2 bus a side disconnecting link DS1 (32) are respectively arranged on two sides of the shared bus a bushing BSG1 (3).

The technical scheme of the invention is further improved as follows: a shared bus b bushing BSG2 (4) and a shared bus b bushing BSG2 (4) are arranged in the outgoing line interval b (8), and an outgoing line 1 bus b side disconnecting link DS2 (41) and an outgoing line 2 bus b side disconnecting link DS2 (42) are respectively arranged on two sides of the shared bus b bushing BSG 2.

The technical scheme of the invention is further improved as follows: and a plurality of groups of common bus a bushing BSG1 (3) and common bus b bushing BSG2 (4) are respectively arranged in the outgoing line interval a (7) and the outgoing line interval b (8).

The technical scheme of the invention is further improved as follows: the outgoing line 1 bus bar a side disconnecting link DS1 (31) is connected with the outgoing line 1 bus bar b side disconnecting link DS2 (41) through the GIL3 bus bar (9).

The technical scheme of the invention is further improved as follows: the outgoing 2 bus bar a side knife switch DS1 (32) passes through the GIL3 bus bar (9) and the outgoing 2 bus bar b side knife switch DS2 (42).

The technical scheme of the invention is further improved as follows: and the outer sides of the outgoing line interval a (7) and the outgoing line interval b (8) are respectively provided with outgoing line sleeves (10), and the outgoing line sleeves (10) are three and are independently separated.

Compared with the prior art, the HGIS power distribution device for arranging 220KV has the following beneficial effects:

1. the invention provides an HGIS power distribution device for arranging 220KV, which arranges 2 HGIS outlet loops on opposite sides to realize double-layer outlet, thereby reducing the interval number of 220kV HGIS power distribution devices, obviously compressing the area occupied by the 220kV power distribution device and saving the steel consumption of the framework; and the HGIS bus sleeve can be saved, and the investment cost is reduced.

2. Compared with the traditional power distribution arrangement, the HGIS power distribution device for arranging 220KV greatly reduces the waste of land resources, is suitable for a new energy collection station, a photovoltaic station, a wind power booster station and the like, and is a new breakthrough in saving electric energy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an overall effect diagram of a conventional 220kV HGIS suspended tubular bus medium-sized double-row arrangement.

Fig. 2 is a schematic circuit diagram of an HGIS power distribution apparatus for 220KV arrangement according to the present invention.

Fig. 3 is a schematic structural diagram of an HGIS power distribution unit for 220KV arrangement according to the present invention.

Fig. 4 is an overall effect diagram of an HGIS power distribution unit of the present invention arranged at 220 KV.

Reference numbers in the figures: 1-bus a; 2-bus b; 3-common bus a bushing BSG1, 31-outlet 1 bus a side disconnecting link DS1, 32-outlet 2 bus a side disconnecting link DS 1; 4-common bus b bushing BSG2, 41-outlet 1 bus b side disconnecting link DS2, 42-outlet 2 bus b side disconnecting link DS 2; 5-a line a; 6-line b is outgoing; 7-outgoing line interval a; 8-line-out interval b; 9-GIL branch bus; 10-outgoing line sleeve.

Detailed Description

The technical solution of the present invention will be clearly and completely described by the following detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 2 and 3, in the present invention, a common bus a bushing BSG1 (3) and a common bus b bushing BSG2 (4) are arranged in parallel, a bus a (1) and a bus b (2) are respectively arranged above a common bus a bushing BSG1 (3) and a common bus b bushing BSG2 (4), an outgoing line a (5) and an outgoing line b (6) are respectively arranged outside the bus a (1) and the bus b (2), wherein the outgoing line loops of the outgoing line a (5) and the outgoing line b (6) are of an upper and lower double-layer outgoing line type; a common bus a bushing BSG1 (3) is arranged in the wire outlet interval a (7), a common bus b bushing BSG2 (4) is arranged in the wire outlet interval b (8), and a plurality of groups of common bus a bushings BSG1 (3) and common bus b bushings BSG2 (4) are respectively arranged in the wire outlet interval a (7) and the wire outlet interval b (8).

In the embodiment, the outgoing line interval a (7) and the outgoing line interval b (8) are combined with a common bus-bar a bushing BSG1 (3) and a common bus-bar b bushing BSG2 (4), the common bus-bar a bushing BSG1 (3) is connected with a bus a (1), two sides of the common bus-bar a bushing BSG1 (3) are respectively provided with an outgoing line 1 bus-bar a side disconnecting link DS1 (31) and an outgoing line 2 bus-bar a side disconnecting link DS1 (32), two sides of the common bus-bar b bushing BSG2 (4) are respectively provided with an outgoing line 1 bus-bar b side disconnecting link DS2 (41) and an outgoing line 2 bus-bar b side disconnecting link DS2 (42), the outgoing line 1 bus-bar a side disconnecting link DS1 (31) is connected with the outgoing line 1 bus-bar b side disconnecting link DS2 (41) through a GIL3 bus (9), and the outgoing line 2 bus-bar a side disconnecting link DS1 (32) is connected with an outgoing line 2 b bus-bar DS2 (42) through GIL3 (9); therefore, double-bus wiring under the HGIS double-row arrangement can be realized, and 6 bus sleeves (10) can be saved by two spacers; the outer sides of the outgoing line interval a (7) and the outgoing line interval b (8) are respectively provided with an outgoing line sleeve (10), and the outgoing line sleeve (10) is of an upper-lower double-layer type; the two outlet intervals a (7) and b (8) share the bus bushing BSG1, and when the bus bushing BSG1 is periodically overhauled and a corresponding bus is powered off, all loops also run in a single-bus mode; when an interval is overhauled, the bus is not powered off, the double-bus normally runs, other loops connected to the bus are not affected, the arrangement scheme is consistent with the conventional HGIS arrangement scheme, the outgoing line loop interval alignment of the scheme is realized, the double-loop outgoing lines are staggered and arranged, the same-name loop arrangement in the same interval is avoided, the double-loop outgoing line power supply can be ensured to be led out from the double-bus, and the power supply reliability is guaranteed.

As shown in fig. 1 and 4, fig. 1 is a conventional HGIS layout scheme, and fig. 4 is a 220kV outgoing line double row layout scheme; the scale of construction of fig. 4 is 4 return lines, 16 return lines; compared with the floor area of the traditional HGIS arrangement scheme, the floor area of the 220kV power distribution device can be saved by 27% of the floor area of the 220kV power distribution device area under the construction scale by adopting the 220kV outgoing line double-row arrangement scheme, and the floor area is saved more obviously under the condition of more outgoing line loops.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the appended claims.