CN201838925U - 500KV open type high-voltage distribution device with breaker-and-a-half single-row arrangement - Google Patents
500KV open type high-voltage distribution device with breaker-and-a-half single-row arrangement Download PDFInfo
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- CN201838925U CN201838925U CN201020258009XU CN201020258009U CN201838925U CN 201838925 U CN201838925 U CN 201838925U CN 201020258009X U CN201020258009X U CN 201020258009XU CN 201020258009 U CN201020258009 U CN 201020258009U CN 201838925 U CN201838925 U CN 201838925U
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Abstract
The utility model discloses a 500KV open type high-voltage distribution device with breaker-and-a-half single-row arrangement. Each string comprises two groups of buses, three circuit breakers, a post insulator, a current transformer and an isolating switch which are matched with the three circuit breakers; the buses are flexible leads which are connected on a bus framework by strain insulator strings; the outer sides of the bus frameworks are connected with a lead inlet framework and a lead outlet framework respectively; each circuit breaker in each string is connected with the post insulator, the current transformer and the isolating switch respectively; each circuit breaker in each string, the post insulator, the current transformer and the isolating switch occupy one space and are respectively vertical to the two groups of buses; and the bus framework comprises an upper-layer converging bus framework and a lower-layer transitional bus framework. The 500KV open type high-voltage distribution device has the advantages that the longitudinal size is smaller, the horizontal size is larger, and the 500KV open type high-voltage distribution device is suitable for being used when the longitudinal size of the front of the A row of large unit is limited and the horizontal size is not limited by other matters.
Description
Technical field
The utility model relates to a kind of high voltage distribution installation, relates in particular to the 500KV open type high voltage distribution installation that main electrical scheme adopts a single-row layout of half breaker.
Background technology
In the prior art, electrical main connecting wire there is following requirement:
Stipulate according to " thermal power plant designing technique rules " 13.2.13 bar: the wiring of 330～500kV power distribution equipment must be satisfied the requirement of the stability of a system and reliability, also should consider simultaneously the economical of the flexibility that moves and construction, when turnover line loop number be 6 times and more than, when power distribution equipment has critical role in system, should adopt a half breaker wiring.In a half breaker wiring, power line should match bunchiness with load line, and loop configuration of the same name is in the difference string.Initial stage is 2 whens string only, and loop of the same name should be inserted the not bus of homonymy respectively, and the turnover line should be installed isolating switch.When a half breaker wiring reaches three strings and when above, loop of the same name can be connected to the same side bus, the turnover line should not be installed isolating switch.
Stipulate according to " 220～500kV electric substation designing technique rules " 4.2.2 bar: the final mode of connection of 330～500kV power distribution equipment, when Connection Elements such as circuit, transformer add up to 6 times more than the machine, and when electric substation has critical role in system, should relatively determine to adopt the wiring of a half breaker wiring or double-bus segmentation band hospital bus bar by Technological Economy.When adopting a half breaker wiring, should be with electric power loop and load loop pairing bunchiness, loop configuration of the same name is in the difference string.
According to above described,,,, pass in and out line and should install isolating switch so loop of the same name should need be inserted the not bus of homonymy respectively because two machines are only gone up at the initial stage by power plant for the 500kV power distribution equipment of power plant.For the 500kV power distribution equipment of transformer station, do not need the not bus of homonymy is inserted in loop of the same name.
At present, half breaker connection type of the many employings of the main electrical scheme of China 500kV open type power distribution equipment, promptly two adopt three circuit breakers to be connected on two buses back into outlet, be called for short 3/2 wiring, also claim a half breaker wiring, its arrangement form commonly used has three kinds, and its arrangement form and characteristics are as follows:
Circuit breaker three row are arranged:
Consult Figure 11, this scheme has four strings, wherein three circuit breakers 5 are arranged in the row in each string, one row i.e. an interval, and bus I3 and bus II4 are arranged in two ends, and circuit breaker 5 is arranged between two groups of buses in turn, promptly be positioned at same row, the bus I3 and the bus II4 outside are established inlet wire framework 19 and outlet structure 20 respectively, and one group of wire jumper framework is established in the centre, and bus I3 and bus II4 adopt the column pipe mother.。
This power distribution equipment arrangement form floor space is less, the longitudinal size of requirement power distribution equipment is big (173m), lateral dimension is less, and (a string accounts for an interval, 29m is pressed at an interval), but when being applied to power plant, inlet wire corridor matching degree (drift angle of inlet wire lead is big) is very poor, and inlet wire corridor floor space is very big, and making A be listed as preceding overall floor space increases.
The flat ring type of circuit breaker is arranged:
Consult Figure 12, this scheme has four strings, wherein three circuit breakers 5 are arranged in three intervals in each string, be arranged vertically between three circuit breakers 5 and circularize, bus I3 and bus II4 are arranged adjacent each other at the outlet side, inlet wire framework 19 and outlet structure 20 are arranged in the outside of equipment, and one group of wire jumper framework is established in the centre, and bus I3 and bus II4 adopt the column pipe mother.
The floor space maximum of this power distribution equipment arrangement form, require the lateral dimension of power distribution equipment big and (a stringly take 3 intervals, 28m is pressed at an interval, a string 84m that takies), longitudinal size is 137m, but inlet wire corridor matching degree arranges than 3 row when being applied to power plant, and overall floor space was also arranged little than 3 row before A was listed as.
The circuit breaker biserial is arranged:
Consult Figure 13, this scheme has four strings, and wherein each string takies two intervals, is furnished with two circuit breakers in one of them interval, and another arranges a circuit breaker at interval.The circuit breaker that is arranged in outermost bus bar side circuit breaker and centre in each string takies an interval, another one bus bar side circuit breaker takies an interval, two bus bar side circuit breakers divide two spacing parallel arrangings to be arranged in the side of bus, bus I3 and bus II4 are arranged adjacent each other at inlet wire or outlet side, an other side is arranged transition bus 14, the outside of the circuit breaker in the middle of transition bus framework 16 is arranged in is identical with the bus framework of bus I3 and bus II4, inlet wire framework 19 and outlet structure 20 are established in the bus framework outside, and bus I3 and bus II4 adopt the column pipe mother.
The floor space of this power distribution equipment arrangement form is less, require the lateral dimension of power distribution equipment bigger and (a stringly take 2 intervals, 28m is pressed at an interval, a string 56m that takies), longitudinal size is big (144m) slightly, when this arrangement form was used for big capacity unit, the longitudinal size of power distribution equipment is bigger than normal, and was poor slightly with inlet wire corridor matching degree.
In recent years, along with big capacity unit designing technique is more and more ripe, under many circumstances, owing to the distance increasing of medium-sized unit than before of the distance between two main transformers, as two about 90m of main transformer spacing of 600MW, two about 110m of main transformer spacing of 1000MW add and are furnished with cooling tower etc. before A is listed as sometimes, the distance between the power distribution equipment side main transformer inlet wire (perhaps and rise become fully inlet wire) need be strengthened; In addition, there are some engineerings to be subjected to the restriction of general layout, require the longitudinal size of compression power distribution equipment, the arrangement form of at this moment above 3 kinds of power distribution equipments can not satisfy the requirement of inlet wire corridor matching degree and the requirement of longitudinal size, so the distance between the inlet wire interval of power distribution equipment need be strengthened, just the lateral dimension with power distribution equipment strengthens, and longitudinal size is compressed.So just produced idea with the design of the high low level layered arrangement of the single-row layout bus of 500kV equipment.
Summary of the invention
The utility model purpose has provided the layout pattern of a half breaker open type high-voltage distribution device with uniline arranged of a kind of 500KV, solved large-scale unit longitudinal size before A is listed as and be restricted, and lateral dimension does not have other when restriction to the desired a kind of arrangement of power distribution equipment.
Technical solution of the present utility model is: half breaker open type high-voltage distribution device with uniline arranged of a kind of 500KV, comprise two groups of buses in its each string, three circuit breakers and supporting post insulator, current transformer and isolating switch, its median generatrix is for being connected the flexible conductor on the bus framework by strain insulator string, the bus framework outside is respectively equipped with the inlet wire framework, outlet structure, each the string in each circuit breaker respectively with post insulator, current transformer links to each other with isolating switch, each described circuit breaker in each string, described post insulator, described current transformer and described isolating switch take an interval, and respectively perpendicular to two groups of described busbar arrangement, described bus framework comprises the bus rod framework on upper strata and the transition bus framework of lower floor.
Only arrange a circuit breaker and corresponding electric equipment in each interval, and perpendicular to two busbar arrangement, the circuit breaker between the different interval, isolating switch, current transformer etc. all word order are parallel to two buses, arrange neat.A string have three circuit breakers, three circuit breaker one row are arranged, occupy three intervals, consider the different bus of first stage of construction loop access of the same name, there is a string to take five intervals and (is furnished with circuit breaker but have only in three intervals, the isolated switchgear of current transformer and circuit breaker both sides, two other is to be used for the transition lead-in wire at interval, have only post insulator and the turnover line isolating switch of supporting that lead is used), all the other every strings only need take three intervals, connection in the string between each interval adopts the transition bus to connect, each width at interval is 28m, and the equipment spaced apart is 7.5m, the alternate transport routes of establishing.Equipment is connected to bus distance to be increased post insulator when longer and supports.
The utility model is arranged apart with two groups of bus next-door neighbour turnover line frameworks, and turnover line framework is established in the outside of two buses.The bus framework divides two-layer layout up and down, absolute altitude is respectively 17m, 28m, 17m layer bus is as the transition bus (the transition bus is established in middle circuit breaker both sides) between turnover two intervals, line node place, 28m layer bus is the bus rod usefulness as power distribution equipment, is the node that different string equipment connect.The transition bus just uses when only being connected with two bus bar side circuit breakers in middle circuit breaker both sides, and the transition bus was disconnected between difference was gone here and there, and was interrupted in whole bus length scope promptly, and bus and transition bus all adopt flexible conductor.When having fixture wire to be connected to bus, this bus frame underneath does not have transition bus (this place is not with the node of a string turnover line but the node that different polyphone connects), otherwise the downlead of bus intersects with the transition bus.Arrange because bus is double-deck, saved the area that takies when bus is arranged separately.For minimizing equipment is connected to the length of bus, reduce the height of upper strata bus framework, any electric equipment is not arranged in the bus below, bus isolating switch adopts the telescopic isolating switch of level.
Circuit breaker and corresponding electric equipment thereof adopt single-row layout in the power distribution equipment, its lateral dimension strengthens, longitudinal size dwindles, and satisfies the requirement of the longer lateral dimension of needs when being furnished with cooling tower before big capacity unit of installation or A are listed as, and better with main transformer inlet wire corridor matching degree.Bus divides two-layer layout on the bus framework, occupation space when having saved bus and arranging has separately been dwindled longitudinal size.
Describedly be equiped with lightning conducter respectively on the line framework, protection turnover line is avoided thunderbolt.
The utility model has the advantages that: large-scale unit longitudinal size before A is listed as is restricted, and lateral dimension does not have other when restriction, and the inlet wire correspondence of this 500kV open type power distribution equipment arrangement and unit is better.
Description of drawings
Accompanying drawing 1 is the section layout plan of the first string bus among the utility model embodiment;
Accompanying drawing 2 is the section layout plan of the second string bus among the utility model embodiment;
Accompanying drawing 3 is first sectional drawing at interval in the utility model embodiment first string;
Accompanying drawing 4 is the sectional drawing at second interval in the utility model embodiment first string;
Accompanying drawing 8 is first sectional drawing at interval in the utility model embodiment second string;
Accompanying drawing 9 is the sectional drawing at second interval in the utility model embodiment second string;
Accompanying drawing 11 is the structural representation that circuit breaker three row are arranged in the prior art;
Accompanying drawing 12 is the structural representation that the flat ring type of circuit breaker is arranged in the prior art;
Accompanying drawing 13 is the structural representation that the circuit breaker biserial is arranged in the prior art;
1, first string, 2, second string, 3, bus I, 4, bus II, 5, circuit breaker, 6, current transformer, 7, isolating switch, 8, post insulator, 9, lightning conducter, 10, inlet wire I, 11, the bus framework, 12, inlet wire II, 13, bus rod, 14, the transition bus, 15, the bus rod framework, 16, transition bus framework, 17, outlet I, 18, outlet I I, 19, inlet wire framework, 20, outlet structure, 21, the transition lead-in wire.
Embodiment
Embodiment:
By Fig. 1 to Fig. 7 as can be known, this high voltage distribution installation comprises two strings, is respectively first string, 1 and second string 2; Respectively there is one group of bus the both sides of power distribution equipment, are respectively bus I 3 and bus II4.It is two-layer that every group of bus is divided into, and the upper strata is a bus rod 13, and lower floor is a transition bus 14.First string 1 of power distribution equipment takies five intervals, wherein have to be respectively equipped with circuit breaker 5, current transformer 6, isolating switch 7 in three intervals and to support the post insulator 8 that lead is used, each interval interrupt road its corresponding electric equipment of device forms a line and is vertical with the bus of both sides.In a string different interval, its corresponding electric equipment order of connection of circuit breaker is identical.There are two intervals not have circuit breaker 5 summation current transformers 6 in first string 1, have only isolating switch 7, post insulator 8 and transition lead-in wire 21.Be equipped with isolating switch 7 near inlet wire framework 19 and the outlet structure 20, when a half breaker wiring reaches three strings and when above, should not install isolating switch 7 into and out of line.
From Fig. 8 to Figure 10 as can be known, three intervals have been taken in second string 2, circuit breaker, current transformer 6, isolating switch 7 are all arranged at interval and support the post insulator 8 that lead is used, each interval interrupt road device with and corresponding electric equipment form a line vertically equally with the bus of both sides, inlet wire and outlet are equipped with isolating switch 7.
As can be known, bus framework 11 is divided into the bus rod framework 15 on upper strata and the transition bus framework 16 of lower floor from Fig. 1 to Figure 10, and the top of inlet wire I10, outlet I17, inlet wire II12 and outlet II18 all is connected to lightning conducter 9.Connect by transition bus 14 with the circuit breaker in a string, transition bus 14 is not communicated with between the different strings, and when having fixture wire to be connected to bus, this bus frame underneath does not have transition bus 14.Same category of device word order in two strings of power distribution equipment is arranged clear attractive in appearance.
In the present embodiment, the longitudinal size of power distribution equipment is 108m, and the lateral dimension of first string is 140m, and the lateral dimension of second string is 84m.Therefore, it has less longitudinal size, long lateral dimension.When the arrangement form of this power distribution equipment is applied to power plant, better with inlet wire corridor matching degree, do not need to take in addition the inlet wire corridor.In addition, the spacing of two main transformers will strengthen in the big capacity unit, causes the distance between the power distribution equipment side main transformer inlet wire also to want the phase strain big, and just the lateral dimension of power distribution equipment strengthens, the matching degree in inlet wire corridor just can be high more, and this arrangement form can satisfy this requirement equally.
For the 500kV power distribution equipment of power plant, because the initial stage is generally only gone up two machines, so have only two strings in the power distribution equipment of present embodiment, consider that loop of the same name will insert different buses, so its first string takies five intervals.But in the later stage engineering, can increase more string after second string, the arrangement form of these strings is identical with second string.If power plant's initial stage builds when 3 and above string are arranged, the turnover line isolating switch of power distribution equipment is cancelled, and makes that the longitudinal size of power distribution equipment is littler, is 99m.
Above-listed detailed description is specifying at one of the utility model possible embodiments, this embodiment is not in order to limit claim of the present utility model, allly do not break away from the equivalence that the utility model does and implement or change, all should be contained in the claim of this case.
Claims (3)
1. half breaker open type high-voltage distribution device with uniline arranged of a 500KV, comprise two groups of buses in its each string, three circuit breakers and supporting post insulator, current transformer and isolating switch, its median generatrix is for being connected the flexible conductor on the bus framework by strain insulator string, the bus framework outside is respectively equipped with the inlet wire framework, outlet structure, each the string in each circuit breaker respectively with post insulator, current transformer links to each other with isolating switch, it is characterized in that: each the described circuit breaker in each string, described post insulator, described current transformer and described isolating switch take an interval, and respectively perpendicular to two groups of described busbar arrangement, described bus framework comprises the bus rod framework on upper strata and the transition bus framework of lower floor.
2. half breaker open type high-voltage distribution device with uniline arranged of a kind of 500KV according to claim 1 is characterized in that: described with being connected with the transition bus between three described circuit breakers in a string.
3. half breaker open type high-voltage distribution device with uniline arranged of 500KV according to claim 1 and 2 is characterized in that: describedly be equiped with lightning conducter respectively on the line framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020258009XU CN201838925U (en) | 2010-07-13 | 2010-07-13 | 500KV open type high-voltage distribution device with breaker-and-a-half single-row arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020258009XU CN201838925U (en) | 2010-07-13 | 2010-07-13 | 500KV open type high-voltage distribution device with breaker-and-a-half single-row arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN201838925U true CN201838925U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020258009XU Expired - Fee Related CN201838925U (en) | 2010-07-13 | 2010-07-13 | 500KV open type high-voltage distribution device with breaker-and-a-half single-row arrangement |
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| CN (1) | CN201838925U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908733A (en) * | 2010-07-13 | 2010-12-08 | 广东省电力设计研究院 | 500kV open type high-voltage distribution device with uniline arranged one-and-half breaker |
| CN102983511A (en) * | 2012-11-15 | 2013-03-20 | 中国电力工程顾问集团东北电力设计院 | Laminated power distribution unit of transformer substation |
| CN106654871A (en) * | 2017-01-26 | 2017-05-10 | 国网浙江省电力公司经济技术研究院 | Power distribution apparatus with main transformer low-framework traverse |
| CN108400526A (en) * | 2018-04-26 | 2018-08-14 | 国网浙江省电力有限公司经济技术研究院 | Main transformer low-pressure side main breaker circuit arrangement based on vertical arrangement busbar |
| CN114825152A (en) * | 2022-04-29 | 2022-07-29 | 武汉联动设计股份有限公司 | Cross type HGIS power distribution device arrangement structure for realizing interval string internal reverse outgoing line |
-
2010
- 2010-07-13 CN CN201020258009XU patent/CN201838925U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908733A (en) * | 2010-07-13 | 2010-12-08 | 广东省电力设计研究院 | 500kV open type high-voltage distribution device with uniline arranged one-and-half breaker |
| CN101908733B (en) * | 2010-07-13 | 2012-09-19 | 广东省电力设计研究院 | 500kV open type high-voltage distribution device with uniline arranged one-and-half breaker |
| CN102983511A (en) * | 2012-11-15 | 2013-03-20 | 中国电力工程顾问集团东北电力设计院 | Laminated power distribution unit of transformer substation |
| CN106654871A (en) * | 2017-01-26 | 2017-05-10 | 国网浙江省电力公司经济技术研究院 | Power distribution apparatus with main transformer low-framework traverse |
| CN108400526A (en) * | 2018-04-26 | 2018-08-14 | 国网浙江省电力有限公司经济技术研究院 | Main transformer low-pressure side main breaker circuit arrangement based on vertical arrangement busbar |
| CN108400526B (en) * | 2018-04-26 | 2023-11-03 | 国网浙江省电力有限公司经济技术研究院 | Main circuit breaker circuit layout structure at low voltage side of main transformer based on vertically arranged busbars |
| CN114825152A (en) * | 2022-04-29 | 2022-07-29 | 武汉联动设计股份有限公司 | Cross type HGIS power distribution device arrangement structure for realizing interval string internal reverse outgoing line |
| CN114825152B (en) * | 2022-04-29 | 2024-05-31 | 武汉联动设计股份有限公司 | Cross HGIS distribution device arrangement structure for realizing reverse outgoing line in interval string |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
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| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. |
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| CP03 | Change of name, title or address |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address before: 510600 No. 846 Dongfeng East Road, Guangzhou, Guangdong, Yuexiu District Patentee before: Guangdong Electric Power Design Institute |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20170713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |