CN203617560U - Double-bus single-row layout AIS power distribution unit layout structure of transformer substation - Google Patents

Double-bus single-row layout AIS power distribution unit layout structure of transformer substation Download PDF

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Publication number
CN203617560U
CN203617560U CN201320869912.3U CN201320869912U CN203617560U CN 203617560 U CN203617560 U CN 203617560U CN 201320869912 U CN201320869912 U CN 201320869912U CN 203617560 U CN203617560 U CN 203617560U
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bus
power distribution
pipe
female
isolating switch
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邵松涛
王志毅
周海鹏
程中杰
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China Energy Engineering Group Anhui Electric Power Design Institute Co Ltd
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China Energy Engineering Group Anhui Electric Power Design Institute Co Ltd
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Abstract

The utility model discloses a double-bus single-row layout AIS power distribution unit layout structure of a transformer substation. The layout structure is characterized in that two groups of tubular busbars which are supported by post insulators on bus frameworks are arranged in a power distribution device field area, the tubular busbars are a No. I tubular busbar and a No.II tubular busbar, the two groups of tubular busbars are arranged and located at proper height positions so that bus isolation switches and breakers are arranged below the two groups of the tubular busbars, and electric equipment are installed on a ground equipment support; and the bus isolation switches are a No. I isolation switch and a No. II isolation switch which are arranged correspondingly to the No. I tubular busbar and the No.II tubular busbar, all the breakers in intervals including a wire-outgoing interval and a main transformer interval are arranged into a row in the direction parallel to the tubular busbars and are located on a wire-outgoing side of the No. I tubular busbar, and bus isolation switches in the wire-outgoing interval and the main transformer interval adopt vertically telescopic 0-degree isolation switches. Through reasonable arrangement of plane heights of the tubular busbars, a double-layer layout structure of the tubular busbars and the equipment are formed, a space is effectively utilized, and occupied land and investment are saved.

Description

The single-row layout of a kind of transformer station's double-bus AIS power distribution equipment arrangement
Technical field
The utility model relates to a kind of AIS of transformer station power distribution equipment arrangement, is particularly suitable for the AIS power distribution equipment arrangement of double-bus structure, the single-row layout of circuit breaker.
Background technology
According to the type of insulation difference of equipment, transformer station's power distribution equipment can be divided into GIS(Gas Insulated Switchgear, gas-insulating and fully-enclosed switch), HGIS(Hybrid Gas Insulated Switchgear, Mixed gas insulation switch), AIS(Ais Insulated Switchgear, air insulation switch) three kinds of patterns, applying at present maximum is GIS and AIS power distribution equipment.Wherein, GIS power distribution equipment is reliable, characteristics of compact layout, floor space are little, but involve great expense, interruption duration is long and coverage is large when accident; AIS power distribution equipment reduced investment, operation maintenance convenience, operating experience are enriched, but floor space is larger, inapplicable in the nervous area, city of occupation of land.HGIS equipment is between AIS and GIS, and its pattern and GIS are basic identical, but does not comprise bus equipment.Because floor space is large more many than GIS, output investment ratio GIS saves limited, and range of application is less.
The reason that AIS power distribution equipment floor space is large is that electric equipment size is larger, and its power distribution equipment district size is generally by lower floor's equipment size control.Take the 220kV power distribution equipment of 2011 editions universal design C-1-220 schemes of State Grid Corporation of China of 220kV AIS transformer station as example, outgoing line interval and main transformer interval are respectively as shown in Figure 4 and Figure 5, this scheme adopts double-bus structure, the single-row layout of circuit breaker, wherein the female isolating switch 2A of I adopts horizontal rotation type isolation switch, be arranged in the outgoing line side of I bus 4a, below I bus 4a, do not arrange any electric equipment, the female isolating switch 2B of II adopts 45 ° of isolating switches of vertical-telescopic, be arranged in the below of II bus 4b, the fixed contact of 45 ° of isolating switches of vertical-telescopic is directly fixed on bus, the height of managing female place level and circuit breaker 7 is close, circuit breaker 7 is arranged in bus outside, between circuit breaker 7 summation current transformers 8, establish maintenance road 12.In outgoing line interval shown in Fig. 4, horizontal rotation type isolation switch 9A and voltage transformer 10 are arranged on the outside of current transformer 8, in main transformer interval shown in Fig. 5, horizontal rotation type isolation switch 9A is arranged on the outside of current transformer 8, lightning arrester 11 is arranged on the below of inlet wire framework 13c, and cross-line 16 is erected between outlet structure and inlet wire framework 13c.In this version, bus isolating switch longitudinal size is larger, manages female place level lower, and other equipment is arranged without space in bus below, and the longitudinal size in whole power distribution equipment district is difficult to compression.The longitudinal size in this power distribution equipment district is 54m.
Utility model content
The utility model is for overcoming the existing weak point of above-mentioned prior art, a kind of longitudinal size that can reduce power distribution equipment district is provided, take up an area the single-row layout of the transformer station's double-bus AIS power distribution equipment arrangement of expansion AIS power distribution equipment range of application thereby reduce transformer station.
The utility model is that technical solution problem adopts following technical scheme:
The design feature of the single-row layout of the utility model transformer station double-bus AIS power distribution equipment arrangement is: at power distribution equipment on-site, arrange and be supported on two groups of pipe mothers on bus framework by post insulator, respectively that No. I pipe mother and No. II pipe are female, described two groups of pipe mothers are set to be on suitable height and position, so that each bus isolating switch and circuit breaker are arranged in described two groups of pipe mothers' below, the each electric equipment including described each bus isolating switch and circuit breaker is installed on ground installation support; Described bus isolating switch is to manage I isolating switch and II isolating switch female and No. II female corresponding setting of pipe with described No. I respectively, all circuit breakers in each interval including outgoing line interval and main transformer interval form a line along the female parallel direction of pipe, and be positioned at the described No. I female outgoing line side of pipe, in described outgoing line interval and main transformer interval, described bus isolating switch all adopts 0 ° of isolating switch of vertical-telescopic.
The design feature of the single-row layout of the utility model transformer station double-bus AIS power distribution equipment arrangement is also:
Described two groups of pipe mothers' bus framework is integral type structure, form bus and merge framework, described bus merges framework to be supported by bus truss column in I Guan Mu place one side, described bus merges framework and extends and supported by the outlet structure of power distribution equipment on-site at II Guan Mu place one side direction outgoing line side, forms the association that bus merges framework and outlet structure.
At described power distribution equipment on-site, maintenance road is positioned at the outside of outlet structure.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model is managed female place level by rationally arranging, and bus isolating switch and circuit breaker are arranged in to pipe mother below, forms and manages female and equipment rebuilding general layout, effectively utilizes space.
2, the utility model adopts 0 ° of isolating switch of vertical-telescopic as bus isolating switch, conventional horizontal rotation type, horizontal retractable and 45 ° of isolating switches of vertical-telescopic in transformer station in alternative prior art, make full use of 0 ° of little advantage of isolating switch longitudinal size of vertical-telescopic, make can arrange more electric equipment below power distribution equipment district bus, further compress the longitudinal size in power distribution equipment district, saved and take up an area.
3, maintenance road in the utility model between circuit breaker summation current transformer is arranged on the outside of outlet structure, make the circuit breaker summation current transformer in mother loop be arranged in the female below of pipe No. II, the longitudinal size of mother loop lower floor's equipment and upper strata bus matches, thereby make bus isolating switch, between circuit breaker summation current transformer, can connect by low level, substitute I isolating switch and current transformer or I isolating switch and No. I female arrangement form being connected by upper strata cross-line and downlead of pipe in prior art, both simplified electrical connection, make to arrange clear attractive in appearance, can save again mother transition framework, upper strata cross-line and gold utensil, save investment.
4, the utility model median generatrix framework and outlet structure can adopt integrated form, reduce civil engineering costs and installing engineering amount, improve on-the-spot framework assembling speed, shorten the completion time of project.
5, technical solutions of the utility model can be applied in the 220kV and 110kV AIS power distribution equipment of transformer station.Take the 220kV power distribution equipment of 2011 editions universal design 220-C-1 schemes of State Grid Corporation of China of 220kV AIS transformer station as example, former power distribution equipment longitudinal size is 54 meters, the power distribution equipment that utilizes the utility model method to arrange, its longitudinal size can be optimized to 31.5 meters, save and take up an area 41.7%, approximately 300,000 yuan of construction investments are also saved at each interval simultaneously.In 220-C-1 scheme, 220kV power distribution equipment is totally 11 intervals, adopts the utility model version can save approximately 3,300,000 yuan of civil engineering costs, saves and takes up an area approximately 0.32 hectare, saves 720,000 yuan of fees paid for taking rural lands.
Accompanying drawing explanation
Fig. 1 is the floor plan schematic diagram of the utility model embodiment;
Fig. 2 is the sectional schematic diagram of outgoing line interval in Fig. 1;
Fig. 3 is the sectional schematic diagram at main transformer interval in Fig. 1;
Fig. 4 is the sectional schematic diagram of outgoing line interval in prior art;
Fig. 5 is the sectional schematic diagram at main transformer interval in prior art;
Number in the figure: 1a is I insulating rod, and 1b is II insulating rod; 2a is I isolating switch, and 2b is II isolating switch; The female isolating switch of 2A transmission line circuit I; The female isolating switch of 2B transmission line circuit II; The female isolating switch of 2C main transformer loop I; The female isolating switch of 2D main transformer loop II; 3a is I fixed contact, and 3b is II fixed contact; 4a is I bus, and 4b is II bus; 5 post insulators; 6a is No. I suspention beam, and 6b is No. II suspention beam; 7 circuit breakers; 8 current transformers; 9 horizontal retractable isolating switches; 9A horizontal rotation type isolation switch; 10 voltage transformers; 11 lightning arresters; 12 maintenance roads; 13a is that bus merges framework, and 13b is outlet structure; 13c inlet wire framework; 16 cross-lines; 17 bus truss columns; 18 outgoing line intervals; 19 main transformer intervals; 20 mother intervals; 21 mothers establish interval.
Embodiment
The present embodiment is the 220kV power distribution equipment that the utility model is applied to 2011 editions universal design 220-C-1 schemes of State Grid Corporation of China of 220kV AIS transformer station, outdoor stay pipe mother is medium-sized, the single-row layout of porcelain knob breaker, full overhead outlet, as shown in Figure 1, in this 220kV power distribution equipment place, comprise altogether six outgoing line intervals 18, three main transformer intervals 19, a mother interval 20 and a mother establish interval 21, wherein: each main transformer interval comprises two groups of bus isolating switchs, a circuit breaker 7, three current transformers 8, one group of feed isolating switch and three lightning arresters 11, each outgoing line interval comprises two groups of bus isolating switchs, 8, one groups of outlet isolating switches of 7, three current transformers of a circuit breaker and a voltage transformer 10, mother interval, for the contact between bus, comprises two groups of bus isolating switchs, a circuit breaker 7 and three current transformers 8, mother establishes interval for measuring busbar voltage, and the bus equipment loop of every group of bus comprises three voltage transformers 10 and three lightning arresters 11.
Referring to Fig. 1, Fig. 2 and Fig. 3, the present embodiment is to be supported on two groups of pipe mothers on bus framework in the setting of power distribution equipment on-site by post insulator 5, respectively manage female 4a for No. I and manage female 4b No. II, described two groups of pipe mothers are set to be on suitable height and position, so that each bus isolating switch and circuit breaker 7 are arranged in described two groups of pipe mothers' below, the each electric equipment including described each bus isolating switch and circuit breaker 7 is installed on ground installation support; Described bus isolating switch is I isolating switch 2a and the II isolating switch 2b that manages female 4a with described No. I respectively and manage the corresponding setting of female 4b for No. II, all circuit breakers 7 in each interval including outgoing line interval and main transformer interval form a line along the female parallel direction of pipe, and be positioned at described outgoing line side of managing female 4a for No. I, in described outgoing line interval 18 and main transformer interval 19, described bus isolating switch all adopts 0 ° of isolating switch 2 of vertical-telescopic.
As shown in Figures 2 and 3, described two groups of pipe mothers' bus framework is integral type structure, form bus and merge framework 13a, described bus merges framework 13a to be supported by bus truss column 17 in I Guan Mu4a place one side, described bus merges framework 13a and extends and supported by the outlet structure 13b of power distribution equipment on-site at II Guan Mu4b place one side direction outgoing line side, forms the association that bus merges framework 13a and outlet structure 13b.
As shown in Figures 2 and 3, at described power distribution equipment on-site, maintenance road 12 is positioned at the outside of outlet structure 13b.
In concrete enforcement, as shown in Figures 2 and 3, suspend beam 6a for No. I in midair and suspend beam 6b in midair No. II the bottom that is separately positioned on the bus framework of I bus 4a and II bus 4b, I insulating rod 1a and II insulating rod 1b are fixedly installed on respectively on No. I suspention beam 6a and No. II suspention beam 6b.The three-phase fixed contact of I isolating switch 2a and II isolating switch 2b is distributed in respectively I insulating rod 1a and II insulating rod 1b is upper, and the each phase of I bus 4a and II bus 4b are each to be connected with I fixed contact 3a and the II fixed contact 3b of corresponding phase by downlead respectively mutually.In the time of bus truss column 17 position suitable, also can not establish suspention beam, insulating rod is directly fixedly installed on bus truss column 17.
In the present embodiment, I insulating rod 1a and II insulating rod 1b meet insulation level and the creepage requirement of corresponding voltage grade, and mechanical strength meets the mechanical property requirement of isolating switch divide-shut brake, and the length of insulating rod is suitable with the lateral dimension of cubicle.
In the present embodiment, by maintenance road 12 is moved to the outside of outlet structure 13b, make current transformer 8 in Fig. 2 and Fig. 3 can be close to circuit breaker 7 and arrange; Because power distribution equipment longitudinal size significantly compresses, therefore can cancel inlet wire framework 13c, the cross-line 16 at main transformer interval is directly erected on the outlet structure 13b of power distribution equipment place and the main transformer framework of main transformer place, and the pulling force of cross-line 16 is still in the reasonable scope.Accordingly, lightning arrester 11 positions at main transformer interval 19 are adjusted to outlet structure 13b outside.The horizontal retractable isolating switch 9 at line interval and voltage transformer 10 are arranged on the outgoing line side of current transformer 8 routinely.
In the present embodiment, mother loop does not need upper strata cross-line, the longitudinal size of lower floor's electric equipment and upper strata bus matches, all electric equipments including bus isolating switch, circuit breaker summation current transformer all can be realized low level and connect, both simplified electrical connection, make to arrange clear attractive in appearance, can reduce again a Pin mother transition framework and one grade of cross-line, save investment.And in prior art in the common arrangement in two kinds, mother loop, one is that the female isolating switch of I is arranged in the female below of pipe No. I, be connected with current transformer by upper strata cross-line and through downlead, another kind is the position that the female isolating switch of I is arranged in outlet isolating switch, connect by upper strata cross-line and through downlead and I pipe parent phase, these two kinds of modes all need one grade of upper strata cross-line, are erected on the mother transition framework and outlet structure at mother interval, power distribution equipment place.
In the present embodiment, the longitudinal size of power distribution equipment can be optimized to 31.5 meters, compared with the 220kV power distribution equipment (54 meters of longitudinal sizes) of 2011 editions universal design 220-C-1 schemes of State Grid Corporation of China of 220kV AIS transformer station, lateral dimension is identical, and longitudinal size reduces significantly.

Claims (3)

1. the single-row layout of a transformer station's double-bus AIS power distribution equipment arrangement, it is characterized in that: at power distribution equipment on-site, arrange and be supported on two groups of pipe mothers on bus framework by post insulator (5), respectively No. I pipe female (4a) and No. II pipe female (4b), described two groups of pipe mothers are set to be on suitable height and position, so that each bus isolating switch and circuit breaker (7) are arranged in described two groups of pipe mothers' below, the each electric equipment including described each bus isolating switch and circuit breaker (7) is installed on ground installation support; Described bus isolating switch is I isolating switch (2a) and the II isolating switch (2b) of managing female (4a) and managing female (4b) corresponding setting for No. II with described No. I respectively, all circuit breakers (7) in each interval including outgoing line interval and main transformer interval form a line along the female parallel direction of pipe, and be positioned at the outgoing line side of described No. I pipe female (4a), in described outgoing line interval (18) and main transformer interval (19), described bus isolating switch all adopts 0 ° of isolating switch of vertical-telescopic.
2. the single-row layout of transformer station according to claim 1 double-bus AIS power distribution equipment arrangement, it is characterized in that: described two groups of pipe mothers' bus framework is integral type structure, form bus and merge framework (13a), described bus merges framework (13a) to be supported by bus truss column (17) No. I female (4a) place of pipe one side, described bus merges framework (13a) and extends and supported by the outlet structure (13b) of power distribution equipment on-site at No. II female (4b) place of pipe one side direction outgoing line side, form the association that bus merges framework (13a) and outlet structure (13b).
3. the single-row layout of transformer station according to claim 1 and 2 double-bus AIS power distribution equipment arrangement, is characterized in that: at described power distribution equipment on-site, maintenance road (12) is positioned at the outside of outlet structure (13b).
CN201320869912.3U 2013-12-26 2013-12-26 Double-bus single-row layout AIS power distribution unit layout structure of transformer substation Active CN203617560U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715617A (en) * 2013-12-26 2014-04-09 中国能源建设集团安徽省电力设计院 Arrangement mode of transformer substation double-bus and single-row arrangement AIS power distribution device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715617A (en) * 2013-12-26 2014-04-09 中国能源建设集团安徽省电力设计院 Arrangement mode of transformer substation double-bus and single-row arrangement AIS power distribution device

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C56 Change in the name or address of the patentee

Owner name: CHINA ENERGY ENGINEERING GROUP ANHUI ELECTRIC POWE

Free format text: FORMER NAME: CHINA ENERGY CONSTRUCTION GROUP ANHUI ELECTRIC POWER DESIGN INSTITUTE

CP01 Change in the name or title of a patent holder

Address after: 230601, No. 369, prosperous road, Hefei economic and Technological Development Zone, Anhui

Patentee after: Co., Ltd of China Energy Construction Group Anhui Electric Power Design Institute

Address before: 230601, No. 369, prosperous road, Hefei economic and Technological Development Zone, Anhui

Patentee before: Anhui Electric Power Design Institute, CEEC