CN103683069B - Transformer station's power distribution equipment isolating switch arrangement - Google Patents
Transformer station's power distribution equipment isolating switch arrangement Download PDFInfo
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- CN103683069B CN103683069B CN201310739153.3A CN201310739153A CN103683069B CN 103683069 B CN103683069 B CN 103683069B CN 201310739153 A CN201310739153 A CN 201310739153A CN 103683069 B CN103683069 B CN 103683069B
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Abstract
The invention discloses the isolating switch arrangement of a kind of transformer station power distribution equipment, it is characterized in that adopting 0 ° of isolating switch of vertical-telescopic, the each moving contact in 0 ° of isolating switch is arranged along the direction parallel with tube type bus; Above the moving contact of 0 ° of isolating switch, by the height of setting, an insulating bar is set along the direction parallel with tube type bus, each static contact in 0 ° of isolating switch is set spacing and is distributed on insulating bar, and the each tube type bus being fixedly installed on tube type bus framework is connected with each corresponding static contact in 0 ° of isolating switch by wire. The present invention can effectively reduce the longitudinal size in power distribution equipment district, reduces transformer station and takes up an area, the range of application of expansion AIS power distribution equipment.
Description
Technical field
The present invention relates to a kind of isolating switch arrangement for AIS transformer station power distribution equipment.
Background technology
According to the type of insulation difference of equipment, transformer station's power distribution equipment can be divided into GIS(GasInsulatedSwitchgear, gasInsulated full-enclosed switch), HGIS(HybridGasInsulatedSwitchgear, Mixed gas insulation switch), AIS(AisInsulatedSwitchgear, air insulation switch) three kinds of patterns, applying at present maximum is GIS and AIS power distribution equipment. ItsIn, GIS power distribution equipment is reliable, characteristics of compact layout, floor space are little, but involve great expense, the long and shadow of power off time when accidentThe scope of sound is large; AIS power distribution equipment reduced investment, operation maintenance convenience, operating experience are enriched, but floor space is larger, inapplicableTaking up an area nervous area, city. HGIS equipment is between AIS and GIS, and its pattern and GIS are basic identical, but do not wrapDraw together bus equipment. Because floor space is large more many than GIS, output investment ratio GIS saves limited, and range of application is less.
Transformer station's power distribution equipment and electrical equipment are longitudinal size along line direction, and being parallel to generatrix direction is lateral dimension. AISThe reason that power distribution equipment floor space is large is that electrical equipment size is larger, and its power distribution equipment size is generally by lower floor's equipment size control.At present, the main electrical scheme of China 220kVAIS power distribution equipment adopts double bus scheme pattern more, and its conventional arrangement form has two kinds,The single-row layout of breaker and breaker dually arrayed, its arrangement form is as follows:
The single-row layout of breaker refers to that line breaker forms a line and is arranged in the outgoing line side of bus. With 220kVAIS transformer station2011 editions universal design C-1-220 schemes of State Grid Corporation of China be example, as shown in Figure 9, this scheme adopt double-bus structure,The single-row layout of breaker, line segregation comprises two groups of bus isolating switch, wherein line loop I isolating switch 2A adopts levelRotary separation switch, is arranged in the outgoing line side of I bus 4a, below I bus 4a, does not arrange any electrical equipment,Line loop II isolating switch 2B adopts 45 ° of isolating switches of vertical-telescopic, is arranged in the below of II bus 4b, hangs downThe static contact of straight telescopic 45 ° of isolating switch 2B is directly fixed on bus. In this version, bus isolating switchAdopt horizontal rotation type and 45 ° of layouts of vertical-telescopic, equipment longitudinal size is larger, and other equipment is arranged without space in bus below,The longitudinal size of whole power distribution equipment is difficult to compression. The longitudinal size of this power distribution equipment is 54m.
Breaker dually arrayed refers to that line breaker lines up two row and be arranged in the both sides of bus. With 220kVAIS transformer station2011 editions universal design C-2-220 schemes of State Grid Corporation of China are example, as shown in figure 10, this scheme employing double-bus structure,Breaker dually arrayed, circuit-main transformer interval (comprising line loop and main transformer loop) comprises four groups of bus isolating switch, whereinLine loop I isolating switch 2A adopts horizontal retractable isolating switch, is arranged in the outgoing line side of I bus 4a, at No. IAny electrical equipment is not arranged in the below of bus 4a, and line loop II isolating switch 2B adopts 45 ° of vertical-telescopics to keep apartClose, phase-splitting is arranged in the below of II bus 4b, and the static contact of 45 ° of isolating switches of vertical-telescopic is directly fixed on bus.Main transformer loop III isolating switch 2C adopts horizontal retractable isolating switch, is arranged in the inlet wire side of I bus 4a, and main transformer returnsRoad IV isolating switch 2D adopts 0 ° of isolating switch of vertical-telescopic, is arranged in the below of intermediate frame 13c, vertical telescopicThe static contact of 0 ° of isolating switch of formula is fixed on upside-down mounting support insulator 5a. In this version, there are two groups of bus isolationSwitch adopts horizontal retractable to arrange, one group of bus isolating switch adopts 45 ° of layouts of vertical-telescopic, and equipment longitudinal size is larger,Other equipment is arranged without space in bus below, and the longitudinal size of whole power distribution equipment is difficult to compression. The longitudinal size of this power distribution equipmentFor 76.5m.
Summary of the invention
The present invention is for avoiding the existing weak point of above-mentioned prior art, and a kind of transformer station power distribution equipment isolating switch cloth is providedInterposed structure, to reduce the longitudinal size in power distribution equipment district, takes up an area thereby reduce transformer station, the application model of expansion AIS power distribution equipmentEnclose.
The present invention is that technical solution problem adopts following technical scheme:
The feature of the isolating switch arrangement of transformer station of the present invention power distribution equipment is:
For single busbar structure, adopt 0 ° of isolating switch of one group of vertical-telescopic, three in 0 ° of isolating switch of described vertical-telescopicPhase moving contact is arranged along the direction parallel with tube type bus;
Above the moving contact of 0 ° of isolating switch of described vertical-telescopic along the direction parallel with tube type bus by the height of settingAn insulating bar is set, and the three-phase static contact in 0 ° of isolating switch of described vertical-telescopic is distributed in described insulating bar to set spacingUpper, be supported on each phase tube type bus on tube type bus framework by support insulator and keep apart by 0 ° of downlead and vertical-telescopicThe static contact of the corresponding phase in the Central Shanxi Plain connects.
The feature of the isolating switch arrangement of transformer station of the present invention power distribution equipment is also: in the bottom of described tube type bus frameworkSuspention beam is set, and described insulating bar is fixedly installed on suspention beam.
The feature of the isolating switch arrangement of transformer station of the present invention power distribution equipment is also:
For the double-bus structure with I bus and II bus, and breaker is the scheme of single-row layout, adopts two groups0 ° of isolating switch of vertical-telescopic, wherein 0 ° of isolating switch of one group of vertical-telescopic, as I isolating switch, is isolated for described No. IThe three-phase moving contact of switch is arranged along the direction parallel with described I bus, wherein 0 ° of isolating switch of another group vertical-telescopicAs II isolating switch, the three-phase moving contact of described II isolating switch is arranged along the direction parallel with II bus;
Above the moving contact of described I isolating switch, arrange No. I absolutely along the direction parallel with I bus by the height of settingEdge rod, the three-phase I static contact of described I isolating switch is distributed on described I insulating bar to set spacing, and I bus is eachConnect with the I static contact of corresponding phase by I downlead respectively mutually;
Above the moving contact of described II isolating switch, by the height of setting, II is set along the direction parallel with II busNumber insulating bar, the three-phase II static contact in described II isolating switch is distributed on described II insulating bar to set spacing, IIThe each II static contact connection with corresponding phase by II downlead respectively mutually of number bus.
The feature of the isolating switch arrangement of transformer station of the present invention power distribution equipment is also: for be fixedly installed I bus andThe bottom of the bus framework of II bus arranges respectively No. I suspention beam and suspends beam in midair No. II, described I insulating bar and No. II insulationRod is fixedly installed on respectively on No. I suspention beam and No. II suspention beam.
The feature of the isolating switch arrangement of transformer station of the present invention power distribution equipment is also:
For the double-bus structure with I bus and II bus, and breaker is the scheme of dually arrayed, adopts four groups0 ° of isolating switch of vertical-telescopic, is respectively I isolating switch, II isolating switch, III isolating switch and No. IV isolationSwitch, the three-phase moving contact of described each isolating switch is arranged along the direction parallel with bus;
Above the moving contact of described I isolating switch, by the height of setting, No. I insulation is set along the direction parallel with busRod, the three-phase I static contact of described I isolating switch is distributed on described I insulating bar to set spacing, the each phase of I busConnect with the I stationary contact of corresponding phase by I downlead respectively;
Above the moving contact of described II isolating switch, by the height of setting, No. II insulation is set along the direction parallel with busRod, the three-phase II static contact of described II isolating switch is distributed on described II insulating bar to set spacing, and II bus is eachConnect with the II static contact of corresponding phase by II downlead respectively mutually;
Above the moving contact of described III isolating switch, arrange No. III absolutely along the direction parallel with bus by the height of settingEdge rod, the three-phase III static contact of described III isolating switch is distributed on described III insulating bar to set spacing, mother ILine is each to be connected with the III static contact of corresponding phase by III downlead respectively mutually;
Above the moving contact of described IV isolating switch, arrange No. IV absolutely along the direction parallel with bus by the height of settingEdge rod, the three-phase IV static contact of described IV isolating switch is distributed on described IV insulating bar to set spacing, mother IILine is respectively connected with corresponding phase cross-line by downlead respectively mutually, No. IV with corresponding phase by IV downlead with described cross-lineStatic contact connects.
The feature of the isolating switch arrangement of transformer station of the present invention power distribution equipment is also: for being fixedly installed I busThe bottom of bus framework arranges respectively No. I suspention beam and No. III suspention beam, and described I insulating bar and III insulating bar are solid respectivelySurely be arranged on No. I suspention beam and No. III suspention beam; Described II insulating bar and IV insulating bar are fixedly installed on respectively busOn truss column.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention adopts 0 ° of isolating switch of vertical-telescopic as bus isolating switch, substitutes in prior art normal in transformer stationWith horizontal rotation type, horizontal retractable and 45 ° of isolating switches of vertical-telescopic, make full use of 0 ° of isolating switch of vertical-telescopicThe advantage that longitudinal size is little, makes can arrange more electrical equipment below power distribution equipment district bus, can greatly reduce power transformationThe floor space of standing.
2, the present invention adopts the fixing point of insulating bar as 0 ° of static contact isolation switch of vertical-telescopic, and the position of insulating bar canNot arbitrarily adjusted along the restriction of vertical bus direction by electrical distance, make the position of isolating switch and miscellaneous equipment clevererLive.
3, median generatrix framework of the present invention can adopt integrated form with line framework, reduces civil engineering costs and installing engineering amount,Improve on-the-spot framework assembling speed, shorten the completion time of project.
4, technical solution of the present invention can be applied in the 220kV and 110kVAIS power distribution equipment of transformer station. With national gridThe 220kV power distribution equipment of 2011 editions universal design 220-C-1 schemes of company is example, and former power distribution equipment longitudinal size is 54 meters,The power distribution equipment that utilizes the inventive method to arrange, its longitudinal size can be optimized for 31.5 meters, saves and takes up an area 41.7%, simultaneouslyApproximately 300,000 yuan of construction investments are also saved at each interval. In 220-C-1 scheme, 220kV power distribution equipment is totally 11 intervals, adoptsCan save approximately 3,300,000 yuan of civil engineering costs by version of the present invention, save and take up an area approximately 0.32 hectare, save land expropriation cost 720,000Unit. Taking the 220kV power distribution equipment of 2011 editions universal design 220-C-2 schemes of State Grid Corporation of China as example, former power distribution equipment is verticalTo being of a size of 76.5 meters, the power distribution equipment that utilizes the inventive method to arrange, its longitudinal size can be optimized for 54.5 meters, savesTake up an area 28.8%, approximately 400,000 yuan of construction investments are also saved at each interval simultaneously. In 220-C-2 scheme, 220kV power distribution equipmentTotally 9 intervals, adopt version of the present invention can reduce investment outlay approximately 3,600,000 yuan, save and take up an area approximately 0.28 hectare, save expropriation of land630,000 yuan of expenses.
Brief description of the drawings
Fig. 1 is that the present invention is for single busbar structure isolating switch arrangement schematic diagram;
Fig. 1 a is structural plan schematic diagram shown in Fig. 1;
Fig. 2 is the isolating switch arrangement schematic diagram of the present invention for double-bus structure, the single-row arrangement of breaker;
Fig. 3 is structural plan schematic diagram shown in Fig. 2;
Fig. 4 is the embodiment schematic diagram that the present invention is applied to double-bus structure, the single-row arrangement of breaker;
Fig. 5 is the isolating switch arrangement schematic diagram of the present invention for double-bus structure, breaker dually arrayed scheme;
Fig. 6 is structural plan schematic diagram shown in Fig. 5;
Fig. 7 is the embodiment schematic diagram that the present invention is applied to double-bus structure, breaker dually arrayed scheme;
Fig. 8 is the structural representation of insulating bar in the present invention;
Fig. 9 is the isolating switch arrangement schematic diagram of double-bus structure in prior art, the single-row arrangement of breaker;
Figure 10 is the isolating switch arrangement schematic diagram of double-bus structure in prior art, breaker dually arrayed scheme;
Number in the figure: 1 insulating bar, 1a is I insulating bar, and 1b is II insulating bar, and 1c is III insulating bar, and 1d is IVNumber insulating bar; 20 ° of vertical-telescopic isolating switches; 2a is I isolating switch, and 2b is II isolating switch, and 2c is No. IIIIsolating switch, 2d is IV isolating switch, and 2A is line loop I isolating switch, and 2B is that line loop keeps apart for No. IIClose, 2C is main transformer loop III isolating switch, and 2D is main transformer loop IV isolating switch; 3 static contacts, 3a be No. I quietContact, 3b is II static contact, and 3c is III static contact, and 3d is IV static contact; 4 tube type bus, 4a is mother ILine, 4b is II bus; 5 support insulators, 5a upside-down mounting support insulator; 6 suspention beams; 6a is No. I suspention beam, and 6b isNo. II suspention beam, 6c is No. III suspention beam; 7 breakers, 7a is transmission line circuit breaker, 7b is main transformer circuit breaker; 8Current transformer, 8a is transmission line circuit current transformer, 8b is main transformer loop current transformer; 9 horizontal retractable isolating switches,9a transmission line circuit outgoing line side isolating switch, 9b main transformer loop inlet wire side isolating switch; 10 voltage transformers; 11 arresters; 12Maintenance road; 13a bus framework, 13b outlet structure, 13c intermediate frame; 15 downleads, 15a is I downlead, 15bFor II downlead, 15c is III downlead, and 15d is IV downlead; 16 cross-lines; 17 bus truss columns.
Detailed description of the invention
Referring to Fig. 1 and Fig. 1 a, for single busbar structure, adopt 0 ° of isolating switch 2 of one group of vertical-telescopic, 0 ° of vertical-telescopicThree-phase moving contact in isolating switch 2 is arranged along the direction parallel with tube type bus 4.
Above the moving contact of 0 ° of isolating switch 2 of vertical-telescopic along the direction parallel with tube type bus 4 by the height of settingAn insulating bar 1 is set, and the three-phase static contact 3 in 0 ° of isolating switch 2 of vertical-telescopic is distributed in insulating bar 1 to set spacingUpper, the each phase tube type bus 4 being fixedly installed on tube type bus framework passes through in downlead 15 and 0 ° of isolating switch of vertical-telescopicThe static contact 3 of corresponding phase connects.
As shown in Figure 1, suspention beam 6 is set in the bottom of tube type bus framework, insulating bar 1 is fixedly installed on suspention beam 6.
Referring to Fig. 2 and Fig. 3, for the double-bus structure with I bus and II bus, and breaker is single-row layoutScheme, adopt 0 ° of isolating switch of two groups of vertical-telescopics, wherein 0 ° of isolating switch of one group of vertical-telescopic is kept apart as No. IClose 2a, the three-phase moving contact of I isolating switch 2a is arranged along the direction parallel with I bus, wherein another group vertical telescopic0 ° of isolating switch of formula is as II isolating switch 2b, and the three-phase moving contact of II isolating switch 2b is along parallel with II busDirection is arranged.
Above the moving contact of I isolating switch 2a, arrange No. I by the height of setting along the direction parallel with I bus 4aInsulating bar 1a, the three-phase I static contact 3a of I isolating switch 2a is distributed in I insulating bar 1a above, mother I to set spacingLine 4a is each to be connected with the I static contact 3a of corresponding phase by I downlead 15a respectively mutually;
Above the moving contact of II isolating switch 2b, by the height of setting, II is set along the direction parallel with II bus 4bNumber insulating bar 1b, to be distributed in II insulating bar 1b upper to set spacing for the three-phase II static contact 3b in II isolating switch 2b,II bus 4b is each to be connected with the II static contact 3b of corresponding phase by II downlead 15b respectively mutually.
As shown in Figure 2, No. I suspention is set respectively in the bottom of the bus framework for being fixedly installed I bus and II busBeam 6a and No. II suspention beam 6b, I insulating bar 1a and II insulating bar 1b are fixedly installed on respectively No. I and suspend beam 6a and II in midairOn number suspention beam 6b.
Shown in Fig. 4, be to adopt 0 ° of vertical-telescopic in the line segregation of double-bus structure, the single-row layout power distribution equipment of breakerThe embodiment of isolating switch 2, the median generatrix framework 13a of transformer station is to be supported by bus truss column 17 in I bus bar side, busFramework 13a extends and is taking outlet structure 13b as support to outgoing line side in II bus bar side, form bus framework 13a withThe association of outlet structure 13b; In transformer station, breaker 7, current transformer 8 and horizontal retractable isolating switch 9 are arrangedBelow II bus 4b, maintenance road 12 is positioned at the outside of outlet structure 13b. Voltage transformer 10 arranges routinely,Connect and be parallel on circuit by T.
In the present embodiment, the bus isolating switch at line interval is adopted to 0 ° of layout of vertical-telescopic, and static contact is fixed onOn insulating bar, both having taken full advantage of 0 ° of little advantage of isolating switch longitudinal size of vertical-telescopic, is bus arranged beneath breakerVacate space Deng electrical equipment, brought into play again the feature that insulating bar position is not arbitrarily adjusted by electrical distance restriction can,Make the position of isolating switch and miscellaneous equipment more flexible, therefore described in Fig. 2 and Fig. 3, isolating switch arrangement can be largeWidth compresses the longitudinal size of power distribution equipment, greatly reduces the floor space of transformer station.
Version in the present embodiment except in the line segregation shown in Fig. 4 application, be also used in simultaneously double-bus structure,In other intervals of the power distribution equipment of the single-row layout of breaker. During for main transformer interval, can reduce by a Pin main transformer inlet wire framework;During for mother interval, the electrical equipment in mother loop can be realized low level and connect, and has both simplified electrical connection, makes to arrange clear U.S.See, can reduce again a Pin mother transition framework and one grade of cross-line, save investment.
Referring to Fig. 5 and Fig. 6, for the double-bus structure with I bus and II bus, and breaker is dually arrayedScheme, adopt 0 ° of isolating switch of four groups of vertical-telescopics, be respectively I isolating switch 2a, II isolating switch 2b, IIINumber isolating switch 2c and IV isolating switch 2d, the three-phase moving contact of each isolating switch is arranged along the direction parallel with bus;
Above the moving contact of I isolating switch 2a, by the height of setting, I insulating bar is set along the direction parallel with bus1a, the three-phase I static contact 3a of I isolating switch 2a is distributed in I insulating bar 1a above, I bus 4a to set spacingEach I static contact 3a connection with corresponding phase by I downlead 15a respectively mutually.
Above the moving contact of II isolating switch 2b, by the height of setting, No. II insulation is set along the direction parallel with busRod 1b, the three-phase II static contact 3b of II isolating switch 2b is distributed in II insulating bar 1b above, mother II to set spacingLine 4b is each to be connected with the II static contact 3b of corresponding phase by II downlead 15b respectively mutually.
Above the moving contact of III isolating switch 2c, by the height of setting, No. III insulation is set along the direction parallel with busRod 1c, the three-phase III static contact 3c of III isolating switch 2c is distributed in III insulating bar 1c above, mother I to set spacingLine 4a is each to be connected with the III static contact 3c of corresponding phase by III downlead 15c respectively mutually.
Above the moving contact of IV isolating switch 2d, by the height of setting, No. IV insulation is set along the direction parallel with busRod 1d, the three-phase IV static contact 3d of IV isolating switch 2d is distributed in IV insulating bar 1d above, No. II to set spacingBus 4b is respectively connected with corresponding phase cross-line 16 by downlead respectively mutually, passes through IV downlead 15d and right with cross-line 16IV static contact 3d that should phase connects.
As shown in Figure 5, arrange respectively No. I in the bottom of the bus framework for being fixedly installed I bus 4a and suspend beam 6a and III in midairNumber suspention beam 6c, I insulating bar 1a and III insulating bar 1c are fixedly installed on respectively No. I suspention beam 6a and No. III suspention beamOn 6c; II insulating bar 1b and IV insulating bar 1d are fixedly installed on respectively on bus truss column 17.
Shown in Fig. 7, be to adopt vertical-telescopic in circuit-main transformer interval of double-bus structure, breaker dually arrayed power distribution equipmentThe embodiment of 0 ° of isolating switch 2, the median generatrix framework 13a of transformer station in the both sides of I bus respectively by bus truss column 17Support, bus framework 13a II bus bar side to outgoing line side extend and be taking outlet structure 13b as support, form busThe association of framework 13a and outlet structure 13b; Transmission line circuit breaker 7a in transformer station's transmission line circuit, transmission line circuit electric currentTransformer 8a and transmission line circuit outgoing line side isolating switch 9a are arranged in the below of II bus 4b, and maintenance road 12 is positioned atThe outside of line framework 13b. Voltage transformer 10 arranges routinely, is connect and is parallel on circuit by T. Main transformer circuit breaker7b, main transformer loop current transformer 8b, main transformer loop inlet wire side isolating switch 9b arrange routinely with arrester 11 and are connected.
In the present embodiment, the bus isolating switch at circuit-main transformer interval is all adopted to 0 ° of layout of vertical-telescopic, and by static contactBeing fixed on insulating bar, both having taken full advantage of 0 ° of little advantage of isolating switch longitudinal size of vertical-telescopic, is bus arranged beneathBreakers etc. have been vacateed space, have brought into play again the feature that insulating bar position is not arbitrarily adjusted by electrical distance restriction can, makeThe position that obtains isolating switch and miscellaneous equipment is more flexible, and therefore described in Fig. 5 and Fig. 6, isolating switch arrangement both can be largeWidth compresses the longitudinal size of power distribution equipment, greatly reduces the floor space of transformer station, can reduce again by a Pin main transformer transition framework, jointApproximately investment. This structure, except can applying in the circuit-main transformer interval shown in Fig. 7, also applies to double bus scheme simultaneously, opens circuitIn other intervals of the power distribution equipment of device dually arrayed. When for circuit-mother interval, can reduce by a Pin mother transition framework.
Insulating bar 1 shown in Fig. 8 be a kind of for alternate and phase the electrical equipment that insulate, hang the suspention that is installed on civil engineering structureOn beam 6, meet dielectric level and the creep age distance requirement alternate, mutually ground of corresponding voltage grade. On insulating bar 1, establish at intervalPut fixing point, fix respectively the static contact 3 of A, B, C three-phase isolation switch in fixing point position. Insulating bar mechanical strength should expireMechanical property requirement, the length of insulating bar 1 and the lateral dimension of cubicle of isolating switch divide-shut brake under the various environment of footQuite.
Claims (6)
1. the isolating switch arrangement of transformer station's power distribution equipment, is characterized in that:
For single busbar structure, adopt one group of 0 ° of isolating switch of vertical-telescopic (2), 0 ° of isolating switch of described vertical-telescopic (2)In three-phase moving contact arrange along the direction parallel with tube type bus (4);
In the top of the moving contact of 0 ° of isolating switch of described vertical-telescopic (2) along the direction parallel with tube type bus (4) by settingHeight an insulating bar (1) is set, the three-phase static contact (3) in 0 ° of isolating switch of described vertical-telescopic (2) with set spacing distributeUpper at described insulating bar (1), the each phase tube type bus (4) being supported on tube type bus framework by support insulator (5) passes through downlead(15) connect with the static contact (3) of corresponding phase in 0 ° of isolating switch of vertical-telescopic.
2. the isolating switch arrangement of transformer station according to claim 1 power distribution equipment, is characterized in that: at described castThe bottom of bus framework arranges suspention beam (6), and described insulating bar (1) is fixedly installed on suspention beam (6).
3. the isolating switch arrangement of transformer station's power distribution equipment, is characterized in that:
For the double-bus structure with I bus and II bus, and breaker is the scheme of single-row layout, adopts two groups0 ° of isolating switch of vertical-telescopic, wherein 0 ° of isolating switch of one group of vertical-telescopic is as I isolating switch (2a), described No. I everyLeave the three-phase moving contact of pass (2a) and arrange along the direction parallel with described I bus, wherein 0 ° of isolation of another group vertical-telescopicSwitch is as II isolating switch (2b), and the three-phase moving contact of described II isolating switch (2b) is along the side parallel with II busTo layout;
Establish by the height of setting along the direction parallel with I bus (4a) top at the moving contact of described I isolating switch (2a)Put I insulating bar (1a), the three-phase I static contact (3a) of described I isolating switch (2a) with set spacing be distributed in described No. I absolutelyEdge rod (1a) is upper, and I bus (4a) respectively connects with the I static contact (3a) of corresponding phase by I downlead (15a) respectively mutually;
In the top of the moving contact of described II isolating switch (2b) along the direction parallel with II bus (4b) by the height of settingII insulating bar (1b) is set, and the three-phase II static contact (3b) in described II isolating switch (2b) is to set described in spacing is distributed inII insulating bar (1b) is upper, the respectively II static contact (3b) with corresponding phase by II downlead (15b) respectively mutually of II bus (4b)Connect.
4. the isolating switch arrangement of transformer station according to claim 3 power distribution equipment, is characterized in that: for fixingThe bottom that the bus framework of I bus and II bus is set arranges respectively No. I suspention beam (6a) and No. II suspention beam (6b), described inI insulating bar (1a) and II insulating bar (1b) are fixedly installed on respectively on No. I suspention beam (6a) and No. II suspention beam (6b).
5. the isolating switch arrangement of transformer station's power distribution equipment, is characterized in that:
For the double-bus structure with I bus and II bus, and breaker is the scheme of dually arrayed, adopts four groups0 ° of isolating switch of vertical-telescopic, be respectively I isolating switch (2a), II isolating switch (2b), III isolating switch (2c) andIV isolating switch (2d), the three-phase moving contact of described each isolating switch is arranged along the direction parallel with bus;
Top at the moving contact of described I isolating switch (2a) arranges No. I absolutely along the direction parallel with bus by the height of settingEdge rod (1a), the three-phase I static contact (3a) of described I isolating switch (2a) is distributed in described I insulating bar (1a) to set spacingUpper, I bus (4a) respectively connects with the I static contact (3a) of corresponding phase by I downlead (15a) respectively mutually;
Top at the moving contact of described II isolating switch (2b) arranges No. II by the height of setting along the direction parallel with busInsulating bar (1b), the three-phase II static contact (3b) of described II isolating switch (2b) is distributed in described II insulating bar to set spacing(1b) upper, II bus (4b) respectively connects with the II static contact (3b) of corresponding phase by II downlead (15b) respectively mutually;
Top at the moving contact of described III isolating switch (2c) arranges III along the direction parallel with bus by the height of settingNumber insulating bar (1c), the three-phase III static contact (3c) of described III isolating switch (2c) with set spacing be distributed in described No. III absolutelyEdge rod (1c) is upper, and I bus (4a) respectively connects with the III static contact (3c) of corresponding phase by III downlead (15c) respectively mutually;
Top at the moving contact of described IV isolating switch (2d) arranges IV along the direction parallel with bus by the height of settingNumber insulating bar (1d), the three-phase IV static contact (3d) of described IV isolating switch (2d) is distributed in described No. IV to set spacingInsulating bar (1d) is upper, and II bus (4b) is respectively connected with corresponding phase cross-line (16) by downlead respectively mutually, with described cross-line (16)Connect with the IV static contact (3d) of corresponding phase by IV downlead (15d).
6. the isolating switch arrangement of transformer station according to claim 5 power distribution equipment, is characterized in that: for fixingThe bottom that the bus framework of I bus (4a) is set arranges respectively No. I suspention beam (6a) and No. III suspention beam (6c), described No. I exhaustedEdge rod (1a) and III insulating bar (1c) are fixedly installed on respectively on No. I suspention beam (6a) and No. III suspention beam (6c); Described No. II absolutelyEdge rod (1b) and IV insulating bar (1d) are fixedly installed on respectively on bus truss column (17).
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| CN105048300B (en) * | 2015-06-19 | 2017-03-01 | 上海电力设计院有限公司 | Three-phase ganged rotary generatrix device |
| CN105006879B (en) * | 2015-06-19 | 2017-03-01 | 上海电力设计院有限公司 | Split-phase rotary generatrix device |
| CN111711079B (en) * | 2020-05-22 | 2021-11-16 | 中国电建集团河北省电力勘测设计研究院有限公司 | Three-phase two-column arrangement mode of low-voltage bus bar of 500kV transformer substation |
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