CN110350456A - Auxiliary bus-bar attachment device and bus-bar system - Google Patents

Auxiliary bus-bar attachment device and bus-bar system Download PDF

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Publication number
CN110350456A
CN110350456A CN201910527178.4A CN201910527178A CN110350456A CN 110350456 A CN110350456 A CN 110350456A CN 201910527178 A CN201910527178 A CN 201910527178A CN 110350456 A CN110350456 A CN 110350456A
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CN
China
Prior art keywords
bar
bus
branch
auxiliary bus
connecting pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910527178.4A
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Chinese (zh)
Other versions
CN110350456B (en
Inventor
刘超峰
陈英
黄坤鹏
钟传平
李雪曼
刘恩歌
赵恒�
张向娟
李建彬
宋丽君
杨向龙
郭浩
张润杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
Original Assignee
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by State Grid Corp of China SGCC, Pinggao Group Co Ltd, Henan Pinggao Electric Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201910527178.4A priority Critical patent/CN110350456B/en
Publication of CN110350456A publication Critical patent/CN110350456A/en
Priority to PCT/CN2019/130181 priority patent/WO2020253214A1/en
Application granted granted Critical
Publication of CN110350456B publication Critical patent/CN110350456B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G5/00Installations of bus-bars
    • H02G5/06Totally-enclosed installations, e.g. in metal casings
    • H02G5/061Tubular casings

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  • Installation Of Bus-Bars (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

The present invention relates to technical field of power systems, the problem of providing a kind of auxiliary bus-bar attachment device and bus-bar system, be able to solve power station equipment high production cost in the prior art.Auxiliary bus-bar attachment device includes collecting connector drum, and the connector drum of collecting is equipped with the branch bar connecting pin being separately connected for each phase branch bar, and the auxiliary bus-bar connecting pin for auxiliary bus-bar connection;Auxiliary bus-bar attachment device further includes that setting is collecting the intracorporal conducting rod of connecting cylinder, and conducting rod is for being connected each branch bar connecting pin and auxiliary bus-bar connecting pin;Auxiliary bus-bar connecting pin and wherein one punishment branch bus connecting pin be rigid connection end, be directly connected to for the bus bar canister of corresponding branch bar and auxiliary bus-bar, in addition two punishment branch bus connecting pins be the flexible connection end formed by bellows.

Description

Auxiliary bus-bar attachment device and bus-bar system
Technical field
The present invention relates to technical field of power systems, and in particular to a kind of auxiliary bus-bar attachment device and bus-bar system.
Background technique
In high voltage generating station transmission system, the three-phase of water conservancy diversion is correspondingly arranged between three-phase main transformer and three-phase main bus-bar Bus and Cubicle Gas-Insulated Switchgear need if bulging occurs for the wherein phase in three-phase main transformer It by the shutdown of entire main transformer until failure is fixed, could put into operation again, the power off time in entire power station is longer, electricity The operational reliability for system of standing is lower.
In order to solve the problems, such as that power station power off time is long, reliability is low, operator in the prior art can be in power station Using a kind of auxiliary bus bar, such as application publication number is CN106712013A, and data of publication of application is the patent Shen of 2017.05.24 Please a kind of electric power station system and its attachment device disclosed in file, including three-phase bus is respectively arranged with master in three-phase bus Earthing switch and main disconnecting switch are additionally provided with single-phase auxiliary bus bar corresponding with three-phase bus, single-phase auxiliary in power station Line is respectively connected by termination with three-phase bus, and the auxiliary disconnecting switch for controlling its on-off is provided in single-phase auxiliary bus bar It is switched with single-phase earthing.Termination includes closed casing and the conducting rod that is arranged in closed casing, and conducting rod has and three Three terminals that phase bus is separately connected, and the connecting pin being connect with single-phase auxiliary bus bar.
When the phase in the three-phase current of main transformer output occurs abnormal, then need to make the exception mutually and three-phase bus It disconnects, while single-phase auxiliary bus bar corresponding to the phase being accessed in three-phase bus by termination and replaces abnormal phase, make The phase current of auxiliary transformer output is added into three-phase bus.It is abnormal mutually out of service, play the role of spare single-phase auxiliary It helps bus to come into operation, to reduce the power off time of electric power station system, increases operational reliability.In electric power station system, connection The attachment device that single-phase auxiliary bus bar is connect with three-phase bus includes closed casing and the conducting rod that is arranged in closed casing, and Closed casing is made of four sequentially connected threeway cylinders, is connected between each threeway cylinder by Bellows expansion joint, each three When logical cylinder is connected with the single-phase auxiliary bus bar of corresponding phase, pass through the ring flange and single-phase auxiliary bus bar cylinder on threeway cylinder Ring flange docking, which is realized, to be fixed, and the conducting of circuit is realized by the disc insulator being fixed between two ring flanges.Each three It is connected between logical cylinder by bellows, accidentally error can be manufactured to GIS ground error, GIS installation error and cylinder and is carried out more It mends, but undoubtedly increases the cost of power station and its equipment using more bellows in termination.
Summary of the invention
It is an object of the invention to propose a kind of auxiliary bus-bar attachment device, it is raw to be able to solve power station equipment in the prior art Produce problem at high cost;Another object of the present invention is to propose a kind of bus-bar system, has not only facilitated adjusting, but have it is at low cost, The advantages of good economy performance.
To achieve the above object, the auxiliary bus-bar attachment device in the present invention adopts the following technical scheme that
Auxiliary bus-bar attachment device, including collect connector drum, the connector drum of collecting is equipped with for each phase branch bar point The branch bar connecting pin not connected, and the auxiliary bus-bar connecting pin for auxiliary bus-bar connection;Auxiliary bus-bar attachment device is also Collecting the intracorporal conducting rod of connecting cylinder including being arranged, conducting rod is connected for each branch bar connecting pin to be connected with auxiliary bus-bar End;Auxiliary bus-bar connecting pin and wherein a punishment branch bus connecting pin is rigid connection end, for corresponding branch bar and spare The bus bar canister of bus is directly connected to, and in addition two punishment branch bus connecting pins are the flexible connection ends formed by bellows.
The beneficial effect is that: operator is when using the auxiliary bus-bar attachment device in the present invention, just by two Property connecting pin one phase branch bar and auxiliary bus-bar are connected, operator directly adjusts the position of branch bar in the pre-connection Come guarantee the phase branch bar and auxiliary bus-bar to just, remaining two-phase branch bar by be flexibly connected end be connected to it is spare On bus connecting device, the flexible connection end formed by bellows by itself axial, radial deformation can to branch bar with Manufacture, rigging error between auxiliary bus-bar attachment device compensate, compared to the prior art in using three bellowss come The scheme of bus bar canister is adjusted, merely with two bellowss can reach identical effect in the present invention, reduce power station and set Standby cost.Meanwhile only needing to adjust the position for two branch bars connecting with flexible connection end in assembling process, it adjusts Measure small, alleviate the task amount of operator, it is time saving and energy saving, and by bellows decrease the bus bar canister of branch bar with Collect the stress between connector drum.
Further, the rigid connection end in branch bar connecting pin and auxiliary bus-bar connecting pin are in coaxially arranged mode It is correspondingly arranged at the opposite two sides for collecting connector drum.
The beneficial effect is that: rigid connection end and auxiliary bus-bar connecting pin is coaxially arranged, convenient for directly adjustment and just Property connecting pin corresponding branch bar position, be also easier to determine branch bar and auxiliary bus-bar whether to just, operation side Just, structure is simple.
Further, it is flexibly connected end setting at the rigid connection end and two in branch bar connecting pin and is collecting connecting cylinder The same side of body.
The beneficial effect is that: the rigid connection end in branch bar connecting pin is arranged with flexible connection end same Three-phase branch bar is connect by side convenient for operator with connector drum is collected.
Further, three-phase branch bar is in the same plane, and is collected and is provided in connector drum and three-phase branch mother Two openings of the corresponding T shape cylinder of side phase bus in line, T shape cylinder are positioned opposite along the extending direction of branch bar, should Two openings positioned opposite are connect with branch bar and auxiliary bus-bar respectively as rigid connection end, and the residue of T shape cylinder is opened Mouth is connect with the remainder for collecting connector drum.
The beneficial effect is that: side phase bus is connect in coaxial fashion with auxiliary bus-bar, operator has larger Operating space come adjust when the position of phase bus is to guarantee this phase bus and auxiliary bus-bar to just, and use T shape cylinder Body is also convenient for operator and is assembled to conducting rod to collect in connector drum.
Further, collect be provided at the flexible connection end of connector drum for in branch bar conductor or with remittance Collect the mating button contact base of the intracorporal conducting rod of connecting cylinder, is embedded in button contact base for being connected to button contact base and conductor, conducting rod Spring touch finger.
The beneficial effect is that: it is slidably connected using button contact base, spring touch finger with the end of conductor or conducting rod, it can The rigging error of conducting rod is compensated using the movement surplus of conducting rod, adapts to the movement of bus bar canister, guarantees the steady of electrical connection It is qualitative.
To achieve the above object, the bus-bar system in the present invention adopts the following technical scheme that
Bus-bar system, including auxiliary bus-bar and three-phase branch bar, are provided with spare between three-phase branch bar and auxiliary bus-bar Bus connecting device, auxiliary bus-bar attachment device include collecting connector drum, and the connector drum of collecting is equipped with for each phase point The branch bar connecting pin that branch bus is separately connected, and the auxiliary bus-bar connecting pin for auxiliary bus-bar connection;Auxiliary bus-bar connects Connection device further includes that setting is collecting the intracorporal conducting rod of connecting cylinder, and conducting rod is for being connected each branch bar connecting pin and spare Bus connecting pin;Auxiliary bus-bar connecting pin and wherein a punishment branch bus connecting pin is rigid connection end, it is female for corresponding branch The bus bar canister of line and auxiliary bus-bar is directly connected to, and in addition two punishment branch bus connecting pins are the flexible connections formed by bellows End.
The beneficial effect is that: operator is when using the auxiliary bus-bar attachment device in the present invention, just by two Property connecting pin one phase branch bar and auxiliary bus-bar are connected, operator directly adjusts the position of branch bar in the pre-connection Come guarantee the phase branch bar and auxiliary bus-bar to just, remaining two-phase branch bar by be flexibly connected end be connected to it is spare On bus connecting device, the flexible connection end formed by bellows by itself axial, radial deformation can to branch bar with Manufacture, rigging error between auxiliary bus-bar attachment device compensate, compared to the prior art in using three bellowss come The scheme of bus bar canister is adjusted, merely with two bellowss can reach identical effect in the present invention, reduce power station and set Standby cost.Meanwhile only needing to adjust the position for two branch bars connecting with flexible connection end in assembling process, it adjusts Measure small, alleviate the task amount of operator, it is time saving and energy saving, and by bellows decrease the bus bar canister of branch bar with Collect the stress between connector drum.
Further, the rigid connection end in branch bar connecting pin and auxiliary bus-bar connecting pin are in coaxially arranged mode It is correspondingly arranged at the opposite two sides for collecting connector drum.
The beneficial effect is that: rigid connection end and auxiliary bus-bar connecting pin is coaxially arranged, convenient for directly adjustment and just Property connecting pin corresponding branch bar position, be also easier to determine branch bar and auxiliary bus-bar whether to just, operation side Just, structure is simple.
Further, it is flexibly connected end setting at the rigid connection end and two in branch bar connecting pin and is collecting connecting cylinder The same side of body.
The beneficial effect is that: the rigid connection end in branch bar connecting pin is arranged with flexible connection end same Three-phase branch bar is connect by side convenient for operator with connector drum is collected.
Further, three-phase branch bar is in the same plane, and is collected and is provided in connector drum and three-phase branch mother Two openings of the corresponding T shape cylinder of side phase bus in line, T shape cylinder are positioned opposite along the extending direction of branch bar, should Two openings positioned opposite are connect with branch bar and auxiliary bus-bar respectively as rigid connection end, and the residue of T shape cylinder is opened Mouth is connect with the remainder for collecting connector drum.
The beneficial effect is that: side phase bus is connect in coaxial fashion with auxiliary bus-bar, operator has larger Operating space come adjust when the position of phase bus is to guarantee this phase bus and auxiliary bus-bar to just, and use T shape cylinder Body is also convenient for operator and is assembled to conducting rod to collect in connector drum.
Further, collect be provided at the flexible connection end of connector drum for in branch bar conductor or with remittance Collect the mating button contact base of the intracorporal conducting rod of connecting cylinder, is embedded in button contact base for being connected to button contact base and conductor, conducting rod Spring touch finger.
The beneficial effect is that: it is slidably connected using button contact base, spring touch finger with the end of conductor or conducting rod, it can The rigging error of conducting rod is compensated using the movement surplus of conducting rod, adapts to the movement of bus bar canister, guarantees the steady of electrical connection It is qualitative.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment 1 of median generatrix system of the present invention;
Fig. 2 is the electrical schematic diagram of the embodiment 1 of median generatrix system of the present invention, and DS represents disconnecting switch, and ES represents earthing switch;
Fig. 3 is the enlarged drawing in Fig. 1 at D;Arrow therein represents electric current direction of transfer;
Fig. 4 is the structural schematic diagram of the embodiment 2 of median generatrix system of the present invention;
In figure: 10-A phase branch bar;The direct-connected cylinder of 11-;20-B phase branch bar;30-C phase branch bar;40- auxiliary bus-bar Attachment device;41- bellows;42- branch cylinder;The first branch of 421- cylinder;The second branch of 422- cylinder;423- third branch Cylinder;43-L shape switching conductor;44- conducting rod;45- disc insulator;46-T shape switching conductor;47- button contact base;50- is spare Bus;60- disconnecting switch.
Specific embodiment
To carry out the specific embodiment of auxiliary bus-bar attachment device and bus-bar system in the present invention now in conjunction with attached drawing Explanation.
It include the A phase branch bar that three-phase is individually arranged for a kind of embodiment of median generatrix system of the present invention: bus-bar system 10, B phase branch bar 20 and C phase branch bar 30 further include each corresponding to play substitution work with this three-phase branch bar Auxiliary bus-bar 50, when phase branch bar a certain in bus-bar system because of failure without that can work when, operator can pass through Respective switch is operated to make corresponding auxiliary bus-bar 50 replace fault bus, bus-bar system is made still to be able to continue to stablize work Make.
A phase branch bar 10, B phase branch bar 20 and C phase branch bar 30 include bus bar canister and are arranged in bus bar canister Interior conducting rod is additionally provided with disconnecting switch 60.The bus bar canister of branch bar includes the horizontal cylinder along diagram horizontal direction arrangement Body further includes being connected on horizontal cylinder, edge to illustrate vertical cylinder arranged in a vertical direction.Horizontal cylinder is used for and spare mother The bus bar canister of line 50 connects.The auxiliary bus-bar being connected between each phase branch bar and auxiliary bus-bar 50 is provided in bus-bar system Attachment device 40, auxiliary bus-bar attachment device 40 collect connector drum be sequentially connected with by three seperated branch's cylinders 42 and At branch's cylinder 42 is the T shape cylinder that can be realized threeway.As shown in figure 3, being located at the right with A phase branch bar 10 of top layer There are two the horizontal connection mouth of horizontally spaced arrangement and vertical connections directed downwardly for first branch's cylinder 421 tool that should be connected Mouthful, and be located at collect second branch's cylinder 422 of connector drum middle and lower part, third branch cylinder 423 all has two along vertical The spaced apart vertical connector in direction and the horizontal connection mouth arranged in the horizontal direction towards branch bar.First branch's cylinder 421 vertical connector is docked with the vertical connector in second branch's cylinder 422 upward, in third branch cylinder 423 upward Vertical connector docked with vertical connector directed downwardly in second branch's cylinder 422.
The horizontal connection mouth of two horizontally spaced arrangements of first branch's cylinder 421, one of horizontal connection Mouth is the branch bar connecting pin connecting with the bus bar canister of A phase branch bar 10, which is straight by flange The rigid connection end connecting with the bus bar canister of A phase branch bar 10 is connect, another horizontal connection mouth of first branch's cylinder 421 is The auxiliary bus-bar connecting pin being directly directly connected to the bus bar canister of auxiliary bus-bar 50 by flange.Second branch's cylinder 422 erects Direct-connected interface is connect with first branch's cylinder 421, third branch cylinder 423 respectively as branch's cylinder connecting pin, the second branch The horizontal connection mouth of cylinder 422 is connect as branch bar connecting pin with the bus bar canister of B phase branch bar 20, and the two it Between be provided with as flexible connection end bellows 41.And the horizontal connection mouth of third branch cylinder 423 connects as branch bar It connects end to connect with the bus bar canister of C phase branch bar 30, is also equipped with the bellows 41 as flexible connection end between the two.Second The branch bar connecting pin of branch's cylinder 422 and third branch cylinder 423 is arranged in the same side.
It is arranged in the conducting rod collected in connector drum, is transferred by the L shape switching conductor 43 and T shape of realizing conductor steering The conductor of conductor 46 and linear connects three-phase branch bar and auxiliary bus-bar is connected, and leads in conducting rod and branch bar It is correspondingly arranged on the button contact base 47 or contact for realizing that conductor is slidably connected on the connecting pin of electric pole, is provided with spring in button contact base 47 Fingertip is held on contact.In the present embodiment, collect the intracorporal opening of connecting cylinder and collect in connector drum and be all provided with There is disc insulator 45, the inserts of turning circuit is embedded on disc insulator 45, the side of inserts is equipped with to be connected with inserts conduction The button contact base 47 connect, the other end are provided with the button contact base 47 or contact being conductively connected with inserts.
In bus-bar system, including two groups of three-phase branch bars, this two groups of three-phase branch bars are symmetrically arranged, and every Component branch bus is respectively connected with auxiliary bus-bar attachment device 40, this corresponding auxiliary bus-bar 50 of two components branch bus is connected to same On conductor.
In operator using the bus-bar system in the present invention to be attached to GIS when, A phase, B phase and C phase branch are female Branch's cylinder bellows of installation error when being provided with the connection of compensation branch bus in line between each phase cylinder, and three-phase branch is female Support of the cylinder of line by corresponding support base, due to A phase branch bar 10 and the cylinder of auxiliary bus-bar attachment device 40 it Between be not provided with bellows, so when being attached, needing to guarantee the installation site of A phase branch bar 10 to subtract as much as possible Small or elimination and auxiliary bus-bar installation error.Operator is in connection, by between branch bar cylinder corresponding with A Branch's cylinder bellows and mobile support base so that A phase branch bar 10 is reached preset installation site, i.e. A phase branch bar It is in auxiliary bus-bar 50 to positive status, A phase branch bar 10 no longer needs to adjust when other phase branch bars connect at this time Position.Continuing B phase branch bar 20 is installed and when C phase branch bar 30, by bellows 41 by this two-phase branch bar with Branch's cylinder is correspondingly connected with, and bellows 41 can compensate for installation error radially, axially, can be complete merely with two bellowss At the connection of three-phase branch bar and auxiliary bus-bar, it is no longer necessary to adjust B phase, branch's cylinder bellows in C phase branch bar And support base, regulated quantity are small.
As shown in figure 4, being the embodiment 2 of median generatrix system of the present invention, only it is disposed in the bus-bar system in the present embodiment One group of three-phase branch bar is connect by auxiliary bus-bar attachment device 40 with auxiliary bus-bar 50.A phase branch bar 10, B phase branch The corresponding rigid connection end with bus connecting device of the bus bar canister of bus 20 and C phase branch bar 30, the cooperation of flexible connection end. It should be noted that the arragement construction of three-phase branch bar belongs to the prior art, and improvement proposed by the present invention is by standby Three-phase branch bar is connect with auxiliary bus-bar with bus connecting device, so the quantity of three-phase branch bar can be according to electricity The demand stood is configured, such as arranges that the three-phases branch bars such as 4 groups, 6 groups come through auxiliary bus-bar attachment device and spare mother Line connection.
In other embodiments, the connector drum of collecting in bus-bar system can be using the T shape cylinder of two three-port structures With the L shape cylinder in a conversion connection direction, the both ends of a T shape cylinder are connected with T shape, L shape cylinder respectively.Positioned at end Remaining two connectors of T shape cylinder be separately connected branch bar bus bar canister and auxiliary bus-bar bus bar canister.Alternatively, directly Connector drum will be collected and be made of one formula structure, no longer by the way of the combination of several T shape cylinders.
In other embodiments, the be rigidly connected position at end can be set at the middle part or bottom position for collecting connector drum On, and no longer use the scheme that the end that is rigidly connected is arranged in the various embodiments described above and collects the top of connector drum.
In other embodiments, spring touch finger could alternatively be petaloid fingertip, watchband-shaped contactor etc..
In other embodiments, collecting two horizontal connection mouths as branch bar connecting pin in connector drum can be with It is staggeredly arranged, there is angle between the floor projection of horizontal connection mouth, make horizontal connection mouth antarafacial, be not limited to branch bar Connecting pin is arranged in the scheme for collecting the same side in connector drum.
The knot of auxiliary bus-bar attachment device in auxiliary bus-bar attachment device in the present invention, with above-mentioned bus-bar system embodiment Structure is identical with application method, therefore the embodiment about auxiliary bus-bar attachment device is not repeated to illustrate.
Above-described specific embodiment, to goal of the invention of the invention, technical scheme and beneficial effects carried out into One step is described in detail, it should be understood that being not used to limit this foregoing is merely a specific embodiment of the invention The protection scope of invention, all any modification, equivalent substitution, improvement and etc. within the spirit and principles in the present invention, done, It should be included within protection scope of the present invention.

Claims (6)

1. auxiliary bus-bar attachment device, it is characterised in that:
Including collecting connector drum, the connector drum of collecting is equipped with the branch bar company being separately connected for each phase branch bar Connect end, and the auxiliary bus-bar connecting pin for auxiliary bus-bar connection;
Auxiliary bus-bar attachment device further includes that setting is collecting the intracorporal conducting rod of connecting cylinder, and conducting rod is female for each branch to be connected Line connecting pin and auxiliary bus-bar connecting pin;
Auxiliary bus-bar connecting pin and wherein a punishment branch bus connecting pin is rigid connection end, for corresponding branch bar and spare The bus bar canister of bus is directly connected to, and in addition two punishment branch bus connecting pins are the flexible connection ends formed by bellows.
2. auxiliary bus-bar attachment device according to claim 1, it is characterised in that: the rigidity in branch bar connecting pin connects It connects end and is correspondingly arranged at the opposite two sides for collecting connector drum in coaxially arranged mode with auxiliary bus-bar connecting pin.
3. auxiliary bus-bar attachment device according to claim 2, it is characterised in that: the rigidity in branch bar connecting pin connects It connects flexible connection end at end and two and the same side for collecting connector drum is set.
4. auxiliary bus-bar attachment device according to claim 2 or 3, it is characterised in that: three-phase branch bar is located at same In plane, collects and be provided with T shape cylinder corresponding with the side phase bus in three-phase branch bar in connector drum, T shape cylinder Two openings are positioned opposite along the extending direction of branch bar, two openings positioned opposite as be rigidly connected end respectively with The remaining opening of branch bar and auxiliary bus-bar connection, T shape cylinder is connect with the remainder for collecting connector drum.
5. auxiliary bus-bar attachment device according to claim 1 or 2 or 3, it is characterised in that: collect the flexibility of connector drum Be provided at connecting pin for the conductor in branch bar or the fingertip mating with the intracorporal conducting rod of connecting cylinder is collected , the spring touch finger for being connected to button contact base and conductor, conducting rod is embedded in button contact base.
6. bus-bar system, it is characterised in that:
Including auxiliary bus-bar and three-phase branch bar, auxiliary bus-bar connection dress is provided between three-phase branch bar and auxiliary bus-bar It sets, the auxiliary bus-bar attachment device is auxiliary bus-bar attachment device described in any one of the claims 1-5.
CN201910527178.4A 2019-06-18 2019-06-18 Spare bus connecting device and bus system Active CN110350456B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201910527178.4A CN110350456B (en) 2019-06-18 2019-06-18 Spare bus connecting device and bus system
PCT/CN2019/130181 WO2020253214A1 (en) 2019-06-18 2019-12-30 Auxiliary busbar connecting device and busbar system

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Application Number Priority Date Filing Date Title
CN201910527178.4A CN110350456B (en) 2019-06-18 2019-06-18 Spare bus connecting device and bus system

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CN110350456A true CN110350456A (en) 2019-10-18
CN110350456B CN110350456B (en) 2021-03-26

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JPH0970112A (en) * 1995-08-30 1997-03-11 Hitachi Ltd Gas insulation switchgear
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