CN207250940U

CN207250940U - Cubicle Gas-Insulated Switchgear three-phase branch mailbox main bus-bar

Info

Publication number: CN207250940U
Application number: CN201720784393.9U
Authority: CN
Inventors: 张蓁; 徐晟�
Original assignee: China XD Electric Co Ltd
Current assignee: China XD Electric Co Ltd
Priority date: 2017-06-30
Filing date: 2017-06-30
Publication date: 2018-04-17
Anticipated expiration: 2027-06-30

Abstract

The utility model discloses a kind of Cubicle Gas-Insulated Switchgear three-phase branch mailbox main bus-bar, including A phase main bus-bars module, B phase main bus-bars module, C phase main bus-bar modules, A phase main bus-bars module level arrangement；B phase main bus-bar modules are arranged vertically；The oblique 45 degree of angles arrangement of C phase main bus-bar modules, A, B, C three-phase supporting module are fixed on A, B, C three-phase main bus-bar module in integrated bottom frame jointly, effectively make use of space, characteristics of compact layout, good appearance；The single-phase disc insulator electric field structure that the utility model structure uses is stable, reliable, highlights the features such as three-phase branch mailbox main bus-bar product reliability in actual charging operation is high, and failure rate is low, and service life is long.

Description

Cubicle Gas-Insulated Switchgear three-phase branch mailbox main bus-bar

【Technical field】

It the utility model is related to the power equipment in a kind of high-voltage power system, more particularly to a kind of gas-insulated metal Sealing switch equipment three-phase branch mailbox main bus-bar.

【Background technology】

At present, the Cubicle Gas-Insulated Switchgear in high-voltage power system often uses three-phase enclosed main bus, root According to substantial amounts of field operational data, main bus-bar failure is concentrated mainly near disc insulator, and insulation fault depends on insulation Electric field structure and the technique manufacture of part, the electric field distribution for the three phase isolated part that existing common box bus uses is more complicated, so as to lead High failure rate after the cause long-term charging operation of product；Three-phase enclosed main bus volume is big at the same time, causes SF6 insulating gas usage amounts Height, is unfavorable for environmental protection.

【Utility model content】

In view of the deficiencies of the prior art, the purpose of this utility model is to provide a kind of operational reliability height, and failure rate is low, makes With the Cubicle Gas-Insulated Switchgear three-phase branch mailbox main bus-bar of long lifespan, SF6 insulating gas usage amounts are low to be beneficial to ring Protect；Beautiful, the compact-sized product of low-profile.

To achieve these goals, the utility model adopts the following technical solution：

A kind of Cubicle Gas-Insulated Switchgear three-phase branch mailbox main bus-bar, including A phase main bus-bars module, B phases are led Busbar modules, C phase main bus-bar modules and integrated bottom frame；

A phase main bus-bars module, B phase main bus-bars module, C phase main bus-bar modules by A phases supporting module, B phases supporting module, C phase supporting modules are fixed in integrated bottom frame jointly, the A phases main bus-bar module, B phase main bus-bars module, C phase main bus-bar modules It is made of A, B, C three-phase housing module, single-phase disc insulator, contact base, conductor, shielding, single-phase disc insulator both sides are equal Contact base is installed, A, B, C phase conductor are inserted into the contact base of corresponding disc insulator respectively, A phase main bus-bar module level cloth Put；B phase main bus-bar modules are arranged vertically；The oblique 45 degree of angles arrangement of C phase main bus-bar modules.

Further, A phases main bus-bar module is located at the surface of C phase main bus-bar modules, B phase main bus-bars module is located at A phases and leads Busbar modules, the inner side of C phase main bus-bar modules and concordant with C phase main bus-bar module centers lines.

Further, A phases supporting module is installed between A phase main bus-bar modules and C phase main bus-bar modules；B phase supporting modules Installed in the underface of B phase main bus-bar modules；C phases supporting module is installed on the underface of C phase main bus-bar modules；A phase branch hold modes Block, the column of C phase supporting modules are installed on centre.

Further, A phase conductors, B phase conductors, C phase conductors respectively with A phase busbares housing, B phase busbares housing, C phase busbar shells Body arranged in concentric circles.

Further, the single-phase disc insulator for installing contact base is referred to as the first disc insulator, the second basin by phase sequence Formula insulator, the 3rd disc insulator, A, B, C phase conductor are inserted into the first disc insulator, the second disc insulator, the 3rd respectively In the contact base of disc insulator.

Relative to the prior art, the utility model has the following advantages：

The Cubicle Gas-Insulated Switchgear of the utility model three-phase branch mailbox main bus-bar, A, B, C three-phase branch hold mode Block is fixed on A, B, C three-phase main bus-bar module in integrated bottom frame jointly, and first, second, third disc insulator both sides are pacified Equipped with contact base, while A, B, C phase conductor are inserted into the contact base of corresponding disc insulator respectively, A, B, C three-phase main bus-bar mould The relative position of block is fixed.The utility model product design is small and beautiful, compact-sized；Long-term charging operation reliability is high, event Barrier rate is low, service life length；On-site maintenance can realize split-phase monitoring, management.

Compared with the common box structure busbar of same type voltage class, the utility model A phase main bus-bars module level arrangement, B phase main bus-bar modules are arranged vertically, and the oblique 45 degree of angles arrangement of C phase main bus-bar modules, it is female that product three-phase sectional area summation only accounts for common case The 69% of cross-sectional area, the final utility model product gas usage amount only have the 85% of former common box bus；So utility model Three-phase branch mailbox bus bar products greatly reduce the usage amount of SF6 gases, are made that in terms of environmental protection and occupational health certain Contribution.

【Brief description of the drawings】

Fig. 1 is A phase main bus-bar module diagrams；

Fig. 2 is B phase main bus-bar module diagrams；

Fig. 3 is C phase main bus-bar module diagrams；

Fig. 4 puts schematic diagram for selvage guide in A phases；

Fig. 5 puts schematic diagram for selvage guide in B phases；

Fig. 6 puts schematic diagram for selvage guide in C phases；

Fig. 7 supports schematic diagram for the utility model A, B, C three-phase branch mailbox busbar；

Fig. 8 is the utility model A, B, C three-phase main bus-bar module overall structure diagram；

【Embodiment】

The utility model is described in further detail with reference to the accompanying drawings and examples.

Describe the concrete scheme of the utility model in detail below in conjunction with attached drawing：

The Cubicle Gas-Insulated Switchgear of the utility model three-phase branch mailbox main bus-bar, first ensures that the practicality is new Type busbar does not change in GIS with disconnecting switch interface position, size in interval；Secondly specification utility model three-phase separate Case busbar thought, reduces the randomness of Practical Project median generatrix design, i.e., not only realizes function and reduce busbar shell to the greatest extent The design species of body, improves versatility；Thirdly consider that the arrangement of the utility model busbar in clearance space should be reasonable, compact； Its single-phase disc insulator of four designs, simplifies busbar electric field structure, improves the powered operational reliability of busbar, reduce and insulate in product Part type, improves versatility；Its five designs branch mailbox busbar support, realizes that assembling is convenient, adjusts, solve engineering site basis, Rigging error.Determine to be spaced interior mother according to Cubicle Gas-Insulated Switchgear (hereinafter referred to as GIS) product standard spacer The full-length of line housing, A, B, C three-phase bus are arranged according to existing space Sizes in GIS intervals, according to arrangement orientation Shape, the structure of associated shell are designed, while parts are led in design.

Cubicle Gas-Insulated Switchgear three-phase branch mailbox main bus-bar, the assembling module signal of A, B, C three-phase housing are shown in Fig. 1,2,3, selvage guide puts signal and sees Fig. 4,5,6 in A, B, C three-phase, and Fig. 7 is shown in the support signal of A, B, C three-phase branch mailbox busbar, practical new Type three-phase main bus-bar module general shape arrangement is shown in Fig. 8.

Cubicle Gas-Insulated Switchgear includes A phase main bus-bars module 10, B phase main bus-bars with three-phase branch mailbox main bus-bar Module 20, C phase main bus-bars module 30 and integrated bottom frame 80；A phase main bus-bars module 10, B phase main bus-bars module 20, C phase main bus-bars Module 30 is fixed in integrated bottom frame 80 jointly by A phases supporting module 50, B phases supporting module 60, C phases supporting module 70, institute A phase main bus-bars module 10, B phase main bus-bars module 20, C phase main bus-bars module 30 are stated by A, B, C three-phase housing module, single-phase benzvalene form Insulator, contact base, conductor, shielding composition, single-phase disc insulator both sides are mounted on contact base, A, B, C phase conductor difference In the contact base of the corresponding disc insulator of insertion, A phase main bus-bar modules 10 are horizontally disposed；B phase main bus-bars module 20 is arranged vertically； 30 oblique 45 degree of angles of C phase main bus-bars module are arranged.The single-phase disc insulator of installation contact base is referred to as the first benzvalene form by phase sequence Insulator 90, the second disc insulator 100, the 3rd disc insulator 110.

A phase main bus-bars module 10 is located at the surface of C phase main bus-bars module 30, B phase main bus-bars module 20 is located at the main mother of A phases Wire module 10, the inner side of C phase main bus-bars module 30 and concordant with C phase main bus-bar 30 center lines of module, A phases supporting module 50 is installed Between A phase main bus-bars module 10 and C phase main bus-bars module 30；B phases supporting module 60 is being installed on B phase main bus-bars module 20 just Lower section；C phases supporting module 70 is installed on the underface of C phase main bus-bars module 30；A phases supporting module 50, C phases supporting module 70 Column is installed on centre.

In order to reduce the randomness of engineering median generatrix design, the design species of busbar housing is reduced to the greatest extent, lifting housing exists Versatility in Practical Project, devises standard universal housing；It is complete for ease of operation, tissue products, and subsequently assemble car Between receive parts, packing, it is necessary to which housing is assembled into fixed module by A, B, C phase sequence；A, B, C split-phase housing it is corresponding in lead It is made of single-phase disc insulator, contact base, conductor, shielding, connection bolt etc.；A, B, C phase conductor respectively with A, B, C phase busbar Housing forms arranged in concentric circles；A, B, C three-phase main bus-bar module relative position are fixed；The design of support will be considered succinct, real With, it is adjustable；Main bus-bar module is fixed in integrated bottom frame by supporting module.

It is high to ultimately provide a kind of operational reliability, failure rate is low, service life length；SF6 insulating gas usage amounts are low, profit In environmental protection；Low-profile beautiful, compact-sized Cubicle Gas-Insulated Switchgear three-phase branch mailbox main bus-bar product.

Above content is further detailed description of the utility model, it is impossible to assert the specific reality of the utility model The mode of applying is only limitted to this, new not departing from this practicality for the utility model person of an ordinary skill in the technical field On the premise of type is conceived, some simple deduction or replace can also be made, should all be considered as belonging to the utility model by being carried Claims of friendship determine utility model protection scope.

Claims

A kind of 1. Cubicle Gas-Insulated Switchgear three-phase branch mailbox main bus-bar, it is characterised in that：Including A phase main bus-bar moulds Block (10), B phase main bus-bar modules (20), C phase main bus-bar modules (30) and integrated bottom frame (80)；

A phase main bus-bar modules (10), B phase main bus-bar modules (20), C phase main bus-bar modules (30) by A phases supporting module (50), B phases supporting module (60), C phases supporting module (70) are fixed in integrated bottom frame (80) jointly, the A phases main bus-bar module (10), B phases main bus-bar module (20), C phase main bus-bar modules (30) by A, B, C three-phase housing module, single-phase disc insulator, touch Headstock, conductor, shielding composition, single-phase disc insulator both sides are mounted on contact base, and A, B, C phase conductor are inserted into corresponding basin respectively In the contact base of formula insulator, A phase main bus-bar modules (10) are horizontally disposed；B phase main bus-bar modules (20) are arranged vertically；C phases are led The oblique 45 degree of angles arrangement of busbar modules (30).
2. Cubicle Gas-Insulated Switchgear according to claim 1 three-phase branch mailbox main bus-bar, it is characterised in that： A phase main bus-bar modules (10) are located at the surface of C phase main bus-bar modules (30), B phase main bus-bar modules (20) are located at A phase main bus-bars Module (10), the inner side of C phase main bus-bar modules (30) and concordant with C phase main bus-bar module (30) center line.
3. Cubicle Gas-Insulated Switchgear according to claim 2 three-phase branch mailbox main bus-bar, it is characterised in that： A phases supporting module (50) is installed between A phase main bus-bar modules (10) and C phase main bus-bar modules (30)；B phases supporting module (60) Installed in the underface of B phase main bus-bar modules (20)；C phases supporting module (70) be installed on C phase main bus-bar modules (30) just under Side；A phases supporting module (50), the column of C phases supporting module (70) are installed on centre.
4. Cubicle Gas-Insulated Switchgear according to any one of claim 1 to 3 three-phase branch mailbox main bus-bar, It is characterized in that：A phase conductors, B phase conductors, C phase conductors are same with A phase busbares housing, B phase busbares housing, C phase busbar housings respectively Heart circle arrangement.
5. Cubicle Gas-Insulated Switchgear according to any one of claim 1 to 3 three-phase branch mailbox main bus-bar, It is characterized in that：The single-phase disc insulator of installation contact base is referred to as the first disc insulator (90), the second basin by phase sequence Formula insulator (100), the 3rd disc insulator (110), A, B, C phase conductor are inserted into the first disc insulator (90), second respectively Disc insulator (100), the 3rd disc insulator (110) contact base in.