CN110994373B

CN110994373B - Bus arrangement structure of HGIS power distribution device

Info

Publication number: CN110994373B
Application number: CN201911294163.4A
Authority: CN
Inventors: 黎功华; 王亚莉; 何立新; 王正华; 洪志鹏; 简志惠; 蒋明双; 魏星; 陈映; 李根富; 徐文婷; 刘颖川; 李小涛; 叶德意; 吴晓松; 曹斯祚; 潘立舟; 廖瀚; 高松; 陈瑢
Original assignee: Sichuan Electric Power Design and Consulting Co Ltd
Current assignee: Sichuan Electric Power Design and Consulting Co Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2021-11-26
Anticipated expiration: 2039-12-16
Also published as: CN110994373A

Abstract

The invention discloses a bus arrangement structure of an HGIS power distribution device, which comprises an HGIS device, a middle framework, two outgoing line frameworks and two groups of tubular buses, wherein the middle framework comprises bus posts and three composite cross arms, and the middle parts of the three composite cross arms are fixed on the bus posts; the HGIS device comprises a C-shaped HGIS, two end points of the C-shaped HGIS are provided with bus sleeves, the C-shaped HGIS is provided with two outgoing line sleeves, and the two bus sleeves are positioned on two sides of a bus post; the two groups of tubular buses respectively comprise three buses, wherein one end of one bus is connected with the end part of the composite cross arm at the lowest part, the other end of the bus is connected with a bus sleeve, the two ends of the two composite cross arms positioned above are respectively connected with the two outgoing line frameworks through overlines, one ends of the other two buses are connected with the bus sleeve, and the other ends of the other two buses are connected with the overlines; and the outgoing line sleeves at two ends of the HGIS device are connected with voltage transformers, and the voltage transformers are connected with lightning arresters and outgoing lines. The invention simplifies the steel framework structure, reduces the occupied space and reduces the steel consumption.

Description

Bus arrangement structure of HGIS power distribution device

Technical Field

The invention relates to the field of power transformation equipment, in particular to a bus arrangement structure of an HGIS power distribution device.

Background

In the outdoor transformer substation: according to the form of the power distribution device, the power distribution device is divided into AIS, GIS and HGIS. The HGIS arrangement types mainly comprise three types of conventional HGIS arrangement, C-type HGIS arrangement, semi-C-type HGIS arrangement and the like. The bus form of the existing HGIS power distribution device is that a suspension pipe bus is horizontally arranged, as shown in figure 1 (taking 500 kV voltage class as an example), because the suspension pipe bus is horizontally arranged and is limited by the clear distance between conductor phases, the longitudinal size optimization of the power distribution device is difficult to have a great breakthrough, and the site occupation is large. In addition, a large number of strain insulator strings are needed to be used for the suspension pipe bus, the strain insulator strings in the station are always ceramic insulator strings, and the ceramic insulators have the defect of large weight and have important influence on stress of the framework and steel consumption, so that the requirement on steel of the framework of the power distribution device is large.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a bus arrangement structure of an HGIS power distribution device, which reduces the floor area, simplifies the framework structure and saves the framework steel.

The technical scheme adopted by the invention for solving the technical problem is as follows: the HGIS power distribution device bus arrangement structure comprises an HGIS device, a middle framework, two outgoing line frameworks and two groups of tubular buses, wherein the middle framework and the HGIS device are arranged between the two outgoing line frameworks; the HGIS device comprises a C-shaped HGIS, two end points of the C-shaped HGIS are provided with bus sleeves, the C-shaped HGIS is provided with two outgoing line sleeves, and the two bus sleeves are positioned on two sides of a bus post; the two groups of tubular buses respectively comprise three buses, wherein one end of one bus is connected with the end part of the composite cross arm at the lowest part, the other end of the bus is connected with a bus sleeve, the two ends of the two composite cross arms positioned above are respectively connected with the two outgoing line frameworks through overlines, one ends of the other two buses are connected with the bus sleeve, and the other ends of the other two buses are connected with the overlines; and the outgoing line sleeves at two ends of the HGIS device are connected with voltage transformers, and the voltage transformers are connected with lightning arresters and outgoing lines.

Further, the composite cross arm is a carbon fiber rod.

Furthermore, the overline is connected with the outgoing line framework through the first strain insulator string, a suspension insulator string and a second strain insulator string are arranged on the outgoing line framework, and the voltage transformer, the suspension insulator string, the second strain insulator string and the outgoing line are sequentially connected.

Further, C type HGIS includes first circuit breaker, middle circuit breaker and second circuit breaker, the both ends of middle circuit breaker are connected with the head rod and the second connecting rod of L shape respectively, first circuit breaker and second circuit breaker link to each other with head rod and second connecting rod respectively, and the generating line sleeve pipe sets up the one end that is close to middle circuit breaker at first circuit breaker and second circuit breaker, and the one end of middle circuit breaker is kept away from at first circuit breaker and second circuit breaker to the leading-out bushing setting.

Compared with the prior art, the invention has the beneficial effects that: through the position that changes HGIS device's bus sleeve pipe and play line sleeve pipe, make two sets of generating lines be located the middle part of whole device, middle framework simplifies to a vertical bus-bar post and three compound cross arms, simple structure, and it is few with the steel volume, and distribution device place size receives the bus-bar framework width restriction by the tradition to turn into and receives each equipment, spacing restriction between the road, and the bus-bar framework no longer is the bottleneck of place optimization. The bus framework cross arm adopts the composite cross arm, and the tubular bus suspension insulator string is cancelled, so that the framework column structure is greatly simplified, a large amount of steel is saved, and the occupied area is saved. In addition, the outgoing line arrangement is simpler and more reasonable, redundant steel frame support is not needed, and the steel consumption is further saved.

Drawings

FIG. 1 is a schematic diagram of the prior art;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic plan view of the present invention;

reference numerals: 1-a wire outlet framework; 2-an intermediate framework; 21-a busbar; 22-composite cross arm; 3-HGIS plant; 31-outlet sleeve; 32-bus bar bushing; 33 — a first circuit breaker; 34-intermediate circuit breaker; 35-a second circuit breaker; 36-first connecting rod; 37-a second connecting rod; 4-tubular bus; 5, crossing; 6-a voltage transformer; 7-a lightning arrester; 8, outgoing lines; 9-a first strain insulator string; 10-hanging insulator strings; 11-the second strain insulator string.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

The bus arrangement structure of the HGIS power distribution device comprises an HGIS device 3, a middle framework 2, two outlet frameworks 1 and two groups of pipe buses 4, wherein the middle framework 2 and the HGIS device 3 are arranged between the two outlet frameworks 1, and the two groups of pipe buses 4 are respectively arranged at two sides of the middle framework 2, as shown in figures 2 and 3. The outlet frame 1 is used for supporting an external line so as to connect the external line into the power distribution device.

Middle framework 2 is used for supporting two sets of tub generating lines 4, specifically, middle framework 2 includes bus post 21 and three horizontally compound cross arms 22, and three compound cross arms 22 set gradually from last to bottom, and the middle part of compound cross arm 22 is fixed on bus post 21. The bus bar 21 is a steel column or a frame body, and is arranged in the middle between the two outgoing line frames 1. The composite cross arm 22 is made of high-strength light composite materials, such as carbon fiber rods, and replaces a steel frame body, so that the composite cross arm has the advantage of light weight. The three composite cross arms 22 and the bus posts 21 are arranged in a shape like a Chinese character feng, the structure is simple, the occupied area is small, the overall weight is small, and the steel consumption is greatly reduced.

The HGIS device 3 comprises a C-shaped HGIS, two end points of the C-shaped HGIS are provided with bus sleeves 32, the C-shaped HGIS is provided with two outgoing line sleeves 31, and the two bus sleeves 32 are positioned on two sides of a bus post 21. The number of the HGIS units 3. Although the bus sleeve 32 is located at two end points of the C-type HGIS, because the C-type HGIS is adopted, the distance from the bus sleeve 32 to the middle framework 2 is smaller than the distance from the outgoing sleeve 31 to the middle framework 2, namely, the bus sleeve 32 is closer to the middle framework 2, the outgoing sleeve 31 is closer to the outgoing framework 1, the outgoing sleeve 31 can be conveniently connected with an external line, and meanwhile, the arrangement of two groups of tubular buses 4 is convenient, the tubular buses 4 can be prevented from interfering the connection of the outgoing sleeve 31 and the external line, so that the wiring structure is simplified, and the structure of the outgoing framework 1 is simplified.

In order to ensure that the positions of the bus sleeve 32 and the outlet sleeve 31 meet the requirements, the C-type HGIS comprises the following specific structures: c type HGIS includes first circuit breaker 33, middle circuit breaker 34 and second circuit breaker 35, the both ends of middle circuit breaker 34 are connected with the head rod 36 and the second connecting rod 37 of L shape respectively, first circuit breaker 33 and second circuit breaker 35 link to each other with head rod 36 and second connecting rod 37 respectively, and bus sleeve 32 sets up the one end that is close to middle circuit breaker 34 at first circuit breaker 33 and second circuit breaker 35, and outlet sleeve 31 sets up the one end of keeping away from middle circuit breaker 34 at first circuit breaker 33 and second circuit breaker 35.

The specific arrangement mode of the tubular bus bar 4 is as follows: the two groups of tubular buses 4 respectively comprise three buses, one end of one bus is connected with the end part of the composite cross arm 22 at the lowest part, the other end of the bus is connected with a bus sleeve 32, the two ends of the two composite cross arms 22 positioned above are respectively connected with the two outgoing line frameworks 1 through the crossover wires 5, one ends of the other two buses are connected with the bus sleeve 32, and the other ends of the other two buses are connected with the crossover wires 5. Specifically, the crossover line 5 can be connected with the outgoing line framework 1 through a first strain insulator string 9. In each group of tubular busbars 4, any one tubular busbar 4 can be directly connected with the end part of the composite cross arm 22 at the lowest part, and the other two tubular busbars are respectively connected with a span wire 5. The tubular bus 4 is fixed through the compound cross arm 22 and the overline 5, changes three generating line horizontal arrangement's arrangement among the prior art, consequently does not receive the restriction of the alternate clear distance of conductor, and the distribution device place size is turned into by traditional bus frame width restriction and is received spacing restriction between each equipment, road, and the bus frame no longer is the bottleneck of place optimization, can effectively reduce the space that occupies, and it is more convenient to lay wire.

The connection mode of the outgoing line sleeve 31 and the external line is as follows: the outgoing line sleeves 31 at the two ends of the HGIS device 3 are both connected with a voltage transformer 6, and the voltage transformer 6 is connected with a lightning arrester 7 and an outgoing line 8. The voltage transformer 6, the lightning arrester 7 and the outgoing line 8 are all in the prior art. Specifically, the outgoing line framework 1 is provided with a suspension insulator string 10 and a second strain insulator string 11, and the voltage transformer 6, the suspension insulator string 10, the second strain insulator string 11 and the outgoing line 8 are sequentially connected. Compared with the prior art, the outgoing line arrangement is simpler and more reasonable, redundant steel frame support is not needed, and the steel consumption is further saved.

Claims

The bus arrangement structure of the HGIS power distribution device comprises an HGIS device (3), a middle framework (2), two outgoing line frameworks (1) and two groups of pipe buses (4), wherein the middle framework (2) and the HGIS device (3) are arranged between the two outgoing line frameworks (1), and the two groups of pipe buses (4) are respectively arranged on two sides of the middle framework (2), and is characterized in that the middle framework (2) comprises a bus post (21) and three horizontal composite cross arms (22), the three composite cross arms (22) are sequentially arranged from top to bottom, and the middle parts of the composite cross arms (22) are fixed on the bus post (21); the HGIS device (3) comprises a C-shaped HGIS, two end points of the C-shaped HGIS are provided with bus sleeves (32), the C-shaped HGIS is provided with two outgoing line sleeves (31), and the two bus sleeves (32) are positioned on two sides of a bus post (21); the two groups of tubular buses (4) respectively comprise three buses, one end of one bus is connected with the end part of the composite cross arm (22) at the lowest part, the other end of the bus is connected with a bus sleeve (32), the two ends of the two composite cross arms (22) positioned above are respectively connected with the two outgoing line frameworks (1) through a crossover (5), one ends of the other two buses are connected with the bus sleeve (32), and the other ends of the other two buses are connected with the crossover (5); outgoing line sleeves (31) at two ends of the HGIS device (3) are connected with a voltage transformer (6), and the voltage transformer (6) is connected with a lightning arrester (7) and an outgoing line (8); c type HGIS includes first circuit breaker (33), middle circuit breaker (34) and second circuit breaker (35), the both ends of middle circuit breaker (34) are connected with head rod (36) and second connecting rod (37) of L shape respectively, first circuit breaker (33) and second circuit breaker (35) link to each other with head rod (36) and second connecting rod (37) respectively, and bus sleeve (32) set up in the one end that first circuit breaker (33) and second circuit breaker (35) are close to middle circuit breaker (34), and outlet sleeve (31) set up the one end of keeping away from middle circuit breaker (34) in first circuit breaker (33) and second circuit breaker (35).
2. An HGIS power distribution device bus bar arrangement in accordance with claim 1, wherein the composite cross arm (22) is a carbon fiber rod.
3. An HGIS power distribution device bus arrangement structure according to claim 1, wherein the overline (5) is connected with an outgoing line framework (1) through a first strain insulator string (9), a suspension insulator string (10) and a second strain insulator string (11) are arranged on the outgoing line framework (1), and the voltage transformer (6), the suspension insulator string (10), the second strain insulator string (11) and the outgoing line (8) are sequentially connected.