CN207409805U - The back-to-back ladder arrangement of single-column double-bus - Google Patents

The back-to-back ladder arrangement of single-column double-bus Download PDF

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Publication number
CN207409805U
CN207409805U CN201721367722.6U CN201721367722U CN207409805U CN 207409805 U CN207409805 U CN 207409805U CN 201721367722 U CN201721367722 U CN 201721367722U CN 207409805 U CN207409805 U CN 207409805U
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CN
China
Prior art keywords
bus
meters
ladder
busbar
horizontal
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Active
Application number
CN201721367722.6U
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Chinese (zh)
Inventor
高美金
陈飞
刘伟军
王婷婷
卞荣
王淑红
诸言涵
吴冰
房鑫炎
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Shanghai Jiaotong University
State Grid Corp of China SGCC
Economic and Technological Research Institute of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
Shanghai Jiaotong University
State Grid Corp of China SGCC
Economic and Technological Research Institute of State Grid Zhejiang Electric Power Co Ltd
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Priority to CN201721367722.6U priority Critical patent/CN207409805U/en
Application granted granted Critical
Publication of CN207409805U publication Critical patent/CN207409805U/en
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Abstract

The utility model discloses a kind of back-to-back ladder arrangements of single-column double-bus.The technical solution adopted in the utility model is:The back-to-back ladder arrangement of single-column double-bus, including vertically disposed steel pipe pole, horizontally disposed horizontal steel tube buttress, bus rod and main bus-bar, it is characterized in that, the both sides of the vertical steel tube rod are using three layers of horizontal steel tube buttress different in size of setting, and set the support insulator of busbar respectively in horizontal steel tube buttress end in back-to-back fashion;The support insulator arranges that the bus rod is arranged in the one side of steel pipe pole by support insulator ladder, and main bus-bar is arranged in the opposite side of steel pipe pole by support insulator ladder in horizontal steps.The busbar that conventional levels are arranged is optimized for the busbar of back-to-back upper, middle and lower step arrangement by the utility model, is avoided in the case where being arranged vertically, adjacent alternate to cause happening for phase fault when sleety weather is because water column.

Description

The back-to-back ladder arrangement of single-column double-bus
Technical field
The utility model is related to power equipment arrangement and frameworks, the specifically back-to-back ladder cloth of single-column double-bus Put structure.
Background technology
The low-pressure side of currently running 500kV main transformers, using single bus scheme mode;Consider the reliable of busbar mounting means Property, busbar generally uses horizontal arranging mode.To improve the reliability of main transformer low-pressure side wiring, it is total disconnected to run repeatedly requirement setting Road device.
If main transformer low-pressure side sets main breaker, the mode of connection is changed into bus rod and master from single bus scheme Busbar combines wiring.It is horizontally disposed in view of bus rod and safety net distance during main bus-bar difference during interruption maintenance and busbar Phase spacing, using it is conventional it is horizontally disposed can increase substation's area, the place limitation that can not meet in universal design will It asks, is also runed counter to the theory of saving the area.
At present, the common form of bus bars of open type distribution device has following three kinds outside room:Soft busbar, hanging tubular bus and Brace type pipe busbar.Soft busbar anti-seismic performance is good, but busbar arc sag and windage yaw displacement are larger, larger to framework level pulling force, And floor space is larger;Pipe busbar arc sag is small, and phase spacing is small, smaller to the horizontal pull of framework, and floor space is relatively fewer, Wherein brace type pipe bus structure height is low, and convenient for constructing, safeguarding, but antidetonation and wind resistance are poor;And suspension type busbar resists Shock stability is good, but busbar framework is high, and construction, maintenance difficulties are larger.
It is arranged vertically according to busbar, change plane is space, then shortens the horizontal distance of busbar arrangement, and can be in main transformer Low-pressure side sets main breaker, and meets the place limitation requirement of universal design, but in the case where busbar is arranged vertically, it is each mutually in same One vertical plane in sleety weather, easily in adjacent alternate formation water column, causes phase fault, causes network system failure.
Utility model content
Technical problem to be solved in the utility model is to overcome the problems of the above-mentioned prior art, provides a kind of single-column The back-to-back ladder arrangement of double-bus, plane is changed with space, and conventional levels arrangement or vertically arranged busbar are optimized for The busbar of back-to-back upper, middle and lower step arrangement so that adjacent level is alternate in same busbar is staggeredly arranged, to avoid sleety weather Lower generation phase fault;In addition, the arrangement enables arranges bus rod and main mother in existing main transformer and idle place Line two busbares, power distribution equipment is arranged to it is more compact, to reach the mesh saved and taken up an area.
For this purpose, the utility model adopts the following technical scheme:The back-to-back ladder arrangement of single-column double-bus, including hanging down Steel pipe pole, horizontally disposed horizontal steel tube buttress, horizontal bus rod and the main bus-bar directly set,
The both sides of the vertical steel tube rod are using horizontally disposed three layers of horizontal steel tube branch different in size in back-to-back fashion Pier, and the support insulator of supporting bus is set respectively in horizontal steel tube buttress end;
The support insulator arranges that the bus rod is arranged in by support insulator ladder in horizontal steps The one side of steel pipe pole, main bus-bar are arranged in the opposite side of steel pipe pole by support insulator ladder.
As further improving and supplementing to above-mentioned technical proposal, the utility model takes following technical measures:
In same busbar, adjacent alternate horizontal distance is 0.4-0.6 meters, and vertical range is 1.5-2.0 meters, from top to bottom rank Ladder arrangement, ensures alternate safe distance, meets the minimum electrical distance of Insulation Coordination requirement.
Breaker is equipped between disconnecting switch and current transformer.The reliability of wiring is improved by breaker, it is maximum The problem of degree is avoided in large-engineering transformation and lectotype selection specification standards, consequently facilitating operational safety and operation are maked an inspection tour, inspection It repaiies and simple to install, saves three material costs and cost.
The bus rod is connected using copper bar with disconnecting switch, between disconnecting switch and breaker and breaker with electricity It is connected between current transformer using flexible circuit conductor.
The highly preferred of the support insulator is 0.5-0.7 meters.
The length of the horizontal steel tube buttress is respectively 1.2-1.4 meters, 0.8-1.0 meters, 0.4-0.6 meters from top to bottom.
Using tube type bus, the two is respectively 4.0- from top to down with the spacing of phase for the bus rod and main bus-bar 4.2 meters, 3.2-3.4 meters, 2.4-2.6 meters.
The utility model arranges conventional levels or vertically arranged busbar is optimized for back-to-back upper, middle and lower step arrangement Busbar avoids the phase fault of sleety weather, improves reliability, and it is convenient that operational safety is maked an inspection tour with operation, easy access and peace Dress reduces personnel's input, improves operational safety benefit;Enable and arrange bus rod and master in existing main transformer and idle place Busbar two busbares, power distribution equipment are arranged to more compact, have been reached the mesh saved and taken up an area, three materials input have been saved, so as to big Width reduces cost.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure, 1- vertical steel tube rods, 2- horizontal steel tube buttresses, 3- bus rods, 4- main bus-bars, 5- support insulators, 6- Disconnecting switch, 7- breakers, 8- current transformers.
Specific embodiment
The utility model is further described with reference to specification drawings and specific embodiments.
The back-to-back ladder arrangement of single-column double-bus as shown in Figure 1, is set by vertically disposed steel pipe pole 1, level Horizontal steel tube buttress 2, bus rod 3 and the main bus-bar 4 put form, and the both sides of the steel pipe pole 1 use to be set in back-to-back fashion Three layers of horizontal steel tube buttress 2 different in size are put, and the post insulator of supporting bus is set respectively in horizontal steel tube buttress end Son 5.The support insulator is in horizontally disposed, the phase three-wire three of bus rod 3(That is A, B, C)Pass through 5 rank of support insulator Ladder is arranged in the one side of steel pipe pole 1, main bus-bar 4(That is A, B, C)The another of steel pipe pole is arranged in by 5 ladder of support insulator Side.
In same busbar, adjacent alternate horizontal distance is 0.4 meter, and vertical range is 1.5 meters, is arranged from top to bottom.Every It leaves and breaker 7 is equipped between pass 6 and current transformer 8.Bus rod 3 is connected using copper bar with disconnecting switch 6, disconnecting switch It is connected between 6 and breaker 7 and using flexible circuit conductor between breaker 7 and current transformer 8.The height of support insulator 5 is 0.7 Rice.The length of horizontal steel tube buttress 2 is respectively 1.3 meters, 0.9 meter, 0.5 meter from top to bottom.Bus rod 3 and main bus-bar 4 are adopted With tube type bus, the two is respectively 4.0 meters, 3.2 meters, 2.4 meters from top to down with the level interval of phase.
The above descriptions are merely preferred embodiments of the present invention, not the structure of the utility model is made any Formal limitation.Every any simple modification made according to the technical essence of the utility model to above example is equal Variation and modification, each fall in the scope of protection of the utility model.

Claims (7)

1. the back-to-back ladder arrangement of single-column double-bus, including vertically disposed steel pipe pole (1), horizontally disposed horizontal steel tube Buttress (2), horizontal bus rod (3) and main bus-bar (4), which is characterized in that the both sides of the vertical steel tube rod (1) use and lean against The mode of the back of the body is horizontally disposed with three layers of horizontal steel tube buttress (2) different in size, and is set respectively in horizontal steel tube buttress (2) end The support insulator (5) of busbar;
The support insulator arranges that the bus rod (3) is arranged by support insulator (5) ladder in horizontal steps In the one side of steel pipe pole (1), main bus-bar (4) is arranged in the opposite side of steel pipe pole (1) by support insulator (5) ladder.
2. the back-to-back ladder arrangement of single-column double-bus according to claim 1, which is characterized in that in same busbar, Adjacent alternate horizontal distance is 0.4-0.6 meters, and vertical range is 1.5-2.0 meters, from top to bottom step arrangement.
3. the back-to-back ladder arrangement of single-column double-bus according to claim 1 or 2, which is characterized in that keeping apart It closes and breaker (7) is equipped between (6) and current transformer (8).
4. the back-to-back ladder arrangement of single-column double-bus according to claim 3, which is characterized in that the confluence is female Line (3) is connected using copper bar with disconnecting switch (6), between disconnecting switch (6) and breaker (7) and breaker (7) and electric current it is mutual It is connected between sensor (8) using flexible circuit conductor.
5. the back-to-back ladder arrangement of single-column double-bus according to claim 1 or 2, which is characterized in that the pillar The height of insulator (5) is 0.5-0.7 meters.
6. the back-to-back ladder arrangement of single-column double-bus according to claim 1 or 2, which is characterized in that the level The length of steel pipe buttress (2) is respectively 1.2-1.4 meters, 0.8-1.0 meters, 0.4-0.6 meters from top to bottom.
7. the back-to-back ladder arrangement of single-column double-bus according to claim 1 or 2, which is characterized in that the confluence Busbar (3) and main bus-bar (4) using tube type bus, the two with the level interval of phase is respectively 4.0-4.2 meters from top to down, 3.2-3.4 meters, 2.4-2.6 meters.
CN201721367722.6U 2017-10-23 2017-10-23 The back-to-back ladder arrangement of single-column double-bus Active CN207409805U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721367722.6U CN207409805U (en) 2017-10-23 2017-10-23 The back-to-back ladder arrangement of single-column double-bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721367722.6U CN207409805U (en) 2017-10-23 2017-10-23 The back-to-back ladder arrangement of single-column double-bus

Publications (1)

Publication Number Publication Date
CN207409805U true CN207409805U (en) 2018-05-25

Family

ID=62320912

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721367722.6U Active CN207409805U (en) 2017-10-23 2017-10-23 The back-to-back ladder arrangement of single-column double-bus

Country Status (1)

Country Link
CN (1) CN207409805U (en)

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