CN103840377B - Solid insulation cabinet busbar connecting system - Google Patents
Solid insulation cabinet busbar connecting system Download PDFInfo
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- CN103840377B CN103840377B CN201310644889.2A CN201310644889A CN103840377B CN 103840377 B CN103840377 B CN 103840377B CN 201310644889 A CN201310644889 A CN 201310644889A CN 103840377 B CN103840377 B CN 103840377B
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- bus
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- extension tube
- phase bus
- bolt
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Abstract
The invention discloses a solid insulation cabinet busbar connecting system which is low in mold cost, compact in structure, reliable in electric contact, high in insulation performance, convenient to mount, and low in requirement for the technological level of constructors. The solid insulation cabinet busbar connecting system comprises at least two sets of three-phase busbar connecting units which are arranged side by side in a single row mode, the heights of the three-phase busbar connecting units are sequentially increased or decreased, and the adjacent three-phase busbar connecting units are in flexible connection through flexible busbars (10). The solid insulation cabinet busbar connecting system can be widely applied to the field of solid insulation switch cabinets.
Description
Technical field
The present invention relates to a kind of solid insulation cabinet busbar connection system.
Background technology
Currently, in national power supply-distribution system, country widelys popularize the application of new forms of energy new technology, wherein solid insulation ring
Net cabinet is exactly one of results new technology that State Grid Corporation of China's emphasis is promoted.Solid insulation ring main unit is to adopt solid insulating material
Ring main unit as major insulation medium.By vacuum interrupter and its be conductively connected, disconnecting switch, earthed switch, main bus-bar, branch
The main conductive circuits such as bus single or combination after with solid dielectric insulation cladding be encapsulated as one or several there is certain function can
That combines again or extend possesses all insulation, hermetic module, and the palp Modular surface of people is coated with conduction or semiconductive
Screen layer and can direct reliable ground ring main unit.Loop-network switch cabinet is connected and insulating properties to the electric contact of bus connecting device
There is very high requirement.The method for connecting bus of solid insulation ring main unit occur background be for solid insulation ring main unit between spelling
Cabinet connects.Because solid insulation ring main unit time of occurrence is not long, mostly the connection system of unit cabinet that therefore presently, there are is to adopt machine
The rigid busbar connection system of tool formula, connection system of unit cabinet of solid loop-net cabinet currently has in many solid loop-net cabinet manufacturing enterprises
Application, because the ring main unit cabinet width of each producer is different with bus spaced apart, is customized production, between short threeway and short four-way
Curved bus duct and long threeway and long four-way between straight edge line pipeline affected by cabinet size, need make high precision mould
Tool, when only spelling cabinet, the less guarantee of cupboard cumulative errors correctly effectively splices, and it is unreliable otherwise just to connect.This adds increased
Manufacturing cost and installation complexity and potential safety hazard, in addition when dismantling long threeway and long four-way plug assembly, this design side
Case is first to split out long threeway and long four-way plug part, then dismantles the conductive connection tube with ring main unit sleeve pipe connection, long threeway and length
Four-way plug assembly just can be taken off after need to pulling out the distance of conductive connection tube, when changing ring main unit connection system of unit cabinet at the scene
This is accomplished by more installing/dismounting spaces, is unfavorable for the trend of ring main unit miniaturization.
Content of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, provides that a kind of die cost is low, structure
Compact, electrical contact is reliable, insulating properties are high and easy for installation, requires relatively low solid insulation to the technical merit of workmen
Cabinet busbar connection system.
The technical solution adopted in the present invention is: the present invention includes at least two groups and single is set up in parallel and height incremented by successively
Or the three-phase bus connection unit successively decreasing, it is flexibly connected by flexible bus between adjacent described three-phase bus connection unit,
Described three-phase bus connection unit is provided with three groups, and the three-phase bus connection unit described in two groups at two ends all includes from left to right high
Spend be connected bus, b of a that successively decreases successively and be connected bus and c is connected bus, described a be connected bus include from lower to
On a phase bus bottom pipe setting gradually, the long extension tube one being set on the pipe of described a phase bus bottom, be set in described long extend
Long threeway one on pipe one is arranged on the sealing cap one of described long threeway one top passage port, leading in described long extension tube one
Be electrically connected bolt one with flange one and in described long threeway one for the extension bar one, and described bolt one passes through described flexible bus
Binding post is threadeded with described conducting connecting bar one, and described flange one is fixedly installed on institute on described conducting connecting bar one
State long extension tube one to be fixed on the pipe of described a phase bus bottom；Described b is connected the b phase that bus includes setting gradually from top to bottom
Bus bottom pipe, the short extension tube one being set on the pipe of described b phase bus bottom, the long threeway being set in described short extension tube one
2nd, it is arranged on the sealing cap two of long threeway two top passage port being set in described short extension tube one, be located at described short extension tube
Bolt two with flange two and in the long threeway two being set in described short extension tube one for the conducting connecting bar two in one,
Bolt two in the pipe of described b phase bus bottom passes through the binding post of described flexible bus and leading in described short extension tube
The extension bar two that is electrically connected is threaded, and the flange two in described short extension tube is fixedly installed on conducting connecting bar two will be described short
Extension tube one is fixed on the pipe of described b phase bus bottom；Described c is connected the c phase bus that bus includes setting gradually from top to bottom
Bottom pipe, be set on the pipe of described c phase bus bottom long threeway three, be arranged on the long threeway being set on the pipe of described c phase bus bottom
The sealing cap three of three top passage ports, the binding post of described flexible bus is set on the stud one of described c phase bus bottom pipe, in
Between described three-phase bus connection unit include the from left to right a ' that successively decreases successively of height be connected bus, b ' be connected bus with
And c ' is connected bus, described a ' be connected a ' the phase bus bottom pipe that bus includes setting gradually from top to bottom, be set in described
Long extension tube two on the pipe of a ' phase bus bottom, the long four-way one being set in described long extension tube two, it is arranged on described long four-way
The sealing cap four of one top passage port, the conducting connecting bar three being located in described long extension tube two and flange three and be located at described length
Bolt three in four-way one, the bolt three in described long four-way one pass through described flexible bus binding post with described
Conducting connecting bar three is threaded, and described flange three is fixedly installed on described conducting connecting bar three, described long extension tube two is solid
It is scheduled on a ' phase bus casing ' on；Described b ' be connected b ' the phase bus bottom pipe that bus includes setting gradually from top to bottom, be set in
Short extension tube two on the pipe of described b ' phase bus bottom, the long four-way two being set in described short extension tube two, it is arranged on described length
The sealing cap five of four-way two top passage port, the conducting connecting bar four being located in described short extension tube two and flange four and be located at institute
State the bolt four in long four-way two, described bolt four passes through the binding post of described flexible bus and described conducting connecting bar four spiral shell
Line connects, and described flange four is fixedly installed on, on described conducting connecting bar four, described short extension tube two is fixed on b ' phase bus sheath
Guan Shang；Described c ' be connected c ' the phase bus bottom pipe that bus includes setting gradually from top to bottom, be set in described c ' phase bus bottom
Long four-way three on pipe, it is arranged on the sealing cap six of described long four-way three top passage port, the terminals sub-set of described flexible bus
It is located on the stud two of described c ' phase bus bottom pipe.
The height drop of the connection terminal at described flexible bus two ends, sets above or below described connection terminal
It is equipped with the adjusting washer (disk) of the difference in height compensating wall scroll flexible bus.
Described bolt one, described bolt two, described bolt three and described bolt four are stud, described long threeway
First, the top of described long threeway two and described long threeway three is respectively provided with insulating plug, described insulating plug all with described bolt one, described
Bolt two, described bolt three and described bolt four or described stud one and stud two are threaded.
Described long extension tube one, described long extension tube two, described short extension tube one, described short extension tube two, described length three
Logical one, described long threeway two and described long threeway three are all made using silastic material, described conducting connecting bar one, described conduction
Connecting rod two, described conducting connecting bar three and described conducting connecting bar four are all made using copper product.
The invention has the beneficial effects as follows: due to the present invention include at least two groups single be set up in parallel and height incremented by successively or
The three-phase bus connection unit successively decreasing, is flexibly connected by flexible bus between adjacent described three-phase bus connection unit, with
Prior art is compared, and the present invention carries out the connection of bus again after can first carrying out the assembling of solid switch cabinet, need not consider to position
The problem of precision, and the flexible bus due to adopting, mould that need not be perfect in workmanship, reduce product cost, so this
Bright die cost is low, compact conformation, electrical contact reliability, insulating properties are high and easy for installation, will to the technical merit of workmen
Ask relatively low.
Brief description
Fig. 1 is the perspective view of the embodiment of the present invention one；
Fig. 2 is the positive structure schematic of the embodiment of the present invention one；
Fig. 3 is the perspective view of the embodiment of the present invention two；
Fig. 4 is the positive structure schematic of the embodiment of the present invention two.
Specific embodiment
Embodiment one:
As shown in Figure 1 and Figure 2, the present invention include two groups single be set up in parallel and height incremented by successively or the three-phase that successively decreases female
Line connection unit, three-phase bus connection unit described in two groups all includes the from left to right height a that successively decreases successively and is connected bus, b phase
Connect bus and c to be connected bus, described a is connected a phase bus bottom pipe 1, the set that bus includes setting gradually from top to bottom
The long extension tube 1 being located on described a phase bus bottom pipe 1, the long threeway 1 being set in described long extension tube 1, it is arranged on
The sealing cap 1 of described long threeway 1 top passage port and the conducting connecting bar 1 being located in described long extension tube 1 and flange
1 and be located at described long threeway 1 in bolt 1, described bolt 1 pass through described flexible bus 10 binding post
100 are threadeded with described conducting connecting bar 1, and described flange 1 is fixedly installed on will be described on described conducting connecting bar 1
Long extension tube 1 is fixed on described a phase bus casing 1；Described b is connected the b phase that bus includes setting gradually from top to bottom
Bus bottom pipe 11, the short extension tube 1 being set on described b phase bus bottom pipe 11, it is set in described short extension tube 1
Long threeway two, be arranged on described long threeway two top passage port sealing cap two and be located at described short extension tube 12 in be conductively connected
The bolt two with flange two and in described long threeway for the bar two, described bolt two passes through the terminals of described flexible bus 10
Son 100 is threadeded with described conducting connecting bar two, and described flange two is fixedly installed on will be described on described conducting connecting bar two
Short extension tube 12 is fixed on described b phase bus casing 11；Described c is connected the c phase that bus includes setting gradually from top to bottom
Bus bottom pipe 21, the long threeway three being set on described c phase bus bottom pipe 21, it is arranged on described long threeway three top passage port
Sealing cap three, the binding post 100 of described flexible bus 10 is set on the stud of described c phase bus bottom pipe 21.
In addition, the height drop of the connection terminal 100 at described flexible bus 10 two ends, in described connection terminal 100
Above or below be provided with compensate wall scroll flexible bus difference in height adjusting washer (disk) 8；Described bolt 1 and described bolt two
It is stud, the top of described long threeway 1, described long threeway two and described long threeway three is respectively provided with insulating plug 9, described
Insulating plug 9 is all threadeded with described bolt 1 and described bolt two or described stud one；Described long extension tube 1, described short
Extension tube 1, described long threeway 1, described long threeway two and described long threeway three are all made using silastic material, described
Conducting connecting bar 5 is made using copper product, described flexible bus 10, described long threeway 1, described long threeway two and described length three
It is provided with, on logical three shell, the soft copper braid over braid being connected with external grounding copper bar.
The assembly method of the present invention is:
1st, the connection terminal 100 at flexible bus 10 two ends is inserted described long threeway 1, described long threeway two and respectively
In the horizontal through hole of described long threeway three, make Kong Xinjun and described long threeway 1, the described long threeway of described connection terminal 100
Two and described long threeway about three through hole be in same shaft core position, described long threeway 1, described long threeway two and described length three
Polishing difference in height must be carried out by configuration adjustment packing ring 5 in logical three through hole；
2nd, described conducting connecting bar 1 and described flange 1 are inserted in described long extension tube 1 and are conductively connected described
Bar two and described flange two are inserted in described short extension tube 1, respectively by described long extension tube 1 and described short extension tube one
12 are locked, more described bolt 1 and described bolt two branch are passed through described adjusting washer (disk) 8 and described connection terminal 100
And be connected with the threaded upper ends of described conducting connecting bar 1 and described conducting connecting bar two；
3rd, the lower end branch of described conducting connecting bar 1 and described conducting connecting bar two and described stud (described a phase bus
Bottom pipe 1, described b phase bus bottom pipe 11 and described c phase bus bottom pipe 21 are provided with) threaded,；
4th, described insulating plug 9 is connected with the threaded upper ends of described bolt 1 and described bolt two；
5th, described sealing cap 1, described sealing cap two and described sealing cap three are covered, be connected to outward being connected to soft copper braid over braid
Put on grounding copper bar.
Embodiment two:
As shown in Figure 3, Figure 4, the present embodiment is roughly the same with embodiment one, and except for the difference that, the present embodiment includes three groups
Single be set up in parallel and height incremented by successively or the three-phase bus connection unit successively decreasing, two groups of three-phase bus of both end of which connect
Unit is identical with said structure, except for the difference that, middle described three-phase bus connection unit due in centre position, described flexibility
Bus 10 will be flexibly connected to the three-phase bus connection unit of both sides, so the described three-phase bus connection unit bag of centre
Include from left to right height be connected bus, the b ' of a ' that successively decrease successively and be connected bus and c ' is connected bus, described a ' is connected
Bus, described b ' are connected bus and described c ' is connected, and bus is respectively long four-way 1, long four-way two and long four-way three,
And described flexible bus 10 intersection need not adopt adjusting washer (disk) 8, other structures are constant, and specifically, described a is connected mother
Line includes a phase bus bottom pipe 1 setting gradually from top to bottom, the long extension tube 1 being set on described a phase bus bottom pipe 1, set
The long threeway 1 being located in described long extension tube 1, the sealing cap 1 being arranged on described long threeway 1 top passage port and be located at
Bolt 1 with flange 1 and in described long threeway 1 for the conducting connecting bar 1 in described long extension tube 1, institute
Stating bolt 1 passes through the binding post 100 of described flexible bus 10 to threaded with described conducting connecting bar 1, described flange
One 6 are fixedly installed on and on described conducting connecting bar 1, described long extension tube 1 are fixed on described a phase bus casing 1；Institute
State b be connected the b phase bus bottom pipe 11 that bus includes setting gradually from top to bottom, be set on described b phase bus bottom pipe 11
Short extension tube 1, the long threeway two being set in described short extension tube 1, it is arranged on described long threeway two top passage port
Sealing cap two and the conducting connecting bar two that is located in described short extension tube one and flange two and be located in described long threeway two
Bolt two, described bolt two passes through the binding post 100 of described flexible bus 10 to threaded with described conducting connecting bar two, institute
State flange two and be fixedly installed on, on described conducting connecting bar two, described short extension tube 1 is fixed on described b phase bus casing 11
On；Described c be connected the c phase bus bottom pipe 21 that bus includes setting gradually from top to bottom, be set in described c phase bus bottom pipe 21
On long threeway three, be arranged on the sealing cap three of described long threeway three top passage port, the binding post 100 of described flexible bus 10
It is set on the stud one of described c phase bus bottom pipe 21, middle described three-phase bus connection unit includes from left to right height
Be connected bus, b ' of a ' that successively decreases successively is connected bus and c ' is connected bus, described a ' be connected bus include from lower to
On a ' the phase bus bottom pipe 31 setting gradually, the long extension tube two being set on described a ' phase bus bottom pipe 31, be set in described
Long four-way 1 in long extension tube two, it is arranged on the sealing cap four of described long four-way 1 top passage port and prolongs positioned at described length
Bolt two with flange three and in described long four-way 1 for the conducting connecting bar three in long tube two, described bolt two passes through
The binding post 100 of described flexible bus 10 is threadeded with described conducting connecting bar three, and described flange three is fixedly installed on institute
State and on conducting connecting bar three, described long extension tube two is fixed on a ' phase bus casing ' 31；Described b ' the bus that is connected includes
B ' the phase bus bottom pipe 41 setting gradually from top to bottom, the short extension tube two being set on described b ' phase bus bottom pipe 41, sheathed
Long four-way two in described short extension tube two, it is arranged on the sealing cap five of described long four-way two top passage port and is located at described short
Bolt three with flange four and in described long four-way two for the conducting connecting bar four in extension tube two, described bolt three passes through
The binding post 100 of described flexible bus 10 is threadeded with described conducting connecting bar four, and described flange four is fixedly installed on institute
State and on conducting connecting bar four, described short extension tube two is fixed on b ' phase bus casing 41；Described c ' be connected bus include from
Under to c ' the phase bus bottom pipe 51 above setting gradually, be set on described c ' phase bus bottom pipe 51 long four-way three, be arranged on institute
State the sealing cap six of long four-way three top passage port, the binding post 100 of described flexible bus 10 is set in described c ' phase bus bottom
On the stud two of pipe 51.
The present embodiment is three unit spliceds, and this busbar connection system can support unlimited switch cubicle splicing in theory, its
Middle described three-phase bus connection unit is same structure.
The composite can be widely applied to solid insulation switch cabinet field.
Claims (4)
1. a kind of solid insulation cabinet busbar connection system it is characterised in that: described solid insulation cabinet busbar connection system include to
Few two groups single to be set up in parallel and height incremented by successively or the three-phase bus connection unit successively decreasing, and adjacent described three-phase bus is even
It is flexibly connected by flexible bus (10) between order unit, described three-phase bus connection unit is provided with three groups, two groups of two ends
Described three-phase bus connection unit all includes be connected bus, b of the from left to right a that successively decreases successively of height and is connected bus and c
Be connected bus, described a be connected a phase bus bottom pipe (1) that bus includes setting gradually from top to bottom, be set in described a phase
Long extension tube one (2) on bus bottom pipe (1), the long threeway one (3) being set in described long extension tube one (2), it is arranged on institute
The sealing cap one (4) of stating long threeway one (3) top passage port, the conducting connecting bar one (5) being located in described long extension tube one (2) with
Flange one (6) and the bolt one (7) being located in described long threeway one (3), described bolt one (7) passes through described flexible bus
(10) binding post (100) is threadeded with described conducting connecting bar one (5), and described flange one (6) is fixedly installed on described
On conducting connecting bar one (5), described long extension tube one (2) is fixed on described a phase bus bottom pipe (1)；Described b is connected mother
Line includes b phase bus bottom pipe (11) setting gradually from top to bottom, the short extension tube being set on described b phase bus bottom pipe (11)
One (12), the long threeway two that is set in described short extension tube one (12), it is arranged on and is set in described short extension tube one (12)
The sealing cap two of long threeway two top passage port, the conducting connecting bar two that is located in described short extension tube one (12) and flange two with
And the bolt two being located in the long threeway two being set in described short extension tube one (12), in described b phase bus bottom pipe (11)
Bolt two pass through the binding post (100) of described flexible bus (10) and being conductively connected in described short extension tube (12)
Bar two is threaded, and the flange two in described short extension tube (12) is fixedly installed on and short prolongs described on conducting connecting bar two
Long tube one (12) is fixed on described b phase bus bottom pipe (11)；Described c is connected the c that bus includes setting gradually from top to bottom
Phase bus bottom pipe (21), the long threeway three being set on described c phase bus bottom pipe (21), it is arranged on and is set in described c phase bus
The sealing cap three of the long threeway three top passage port on bottom pipe (21), the binding post (100) of described flexible bus (10) is set in
On the stud one of described c phase bus bottom pipe (21), middle described three-phase bus connection unit is included from left to right highly successively
Be connected bus, b ' of a ' successively decreasing is connected bus and c ' is connected bus, and the described a ' bus that is connected is included from top to bottom
A ' the phase bus bottom setting gradually is managed (31), the long extension tube two being set on described a ' phase bus bottom pipe (31), is set in institute
State the long four-way one (32) in long extension tube two, be arranged on the sealing cap four of described long four-way one (32) top passage port, be located at institute
State the conducting connecting bar three in long extension tube two and flange three and the bolt three being located in described long four-way one (32), be located at
Bolt three in described long four-way one (32) passes through the binding post (100) of described flexible bus (10) and described conducting connecting bar
Three is threaded, and described flange three is fixedly installed on, on described conducting connecting bar three, described long extension tube two is fixed on a ' mutually mother
Thread casing ' on (31)；Described b ' be connected b ' phase bus bottom pipe (41) that bus includes setting gradually from top to bottom, be set in institute
State the short extension tube two on b ' phase bus bottom pipe (41), the long four-way two being set in described short extension tube two, be arranged on described
The sealing cap five of long four-way two top passage port, the conducting connecting bar four being located in described short extension tube two (12) and flange four and
Bolt four in described long four-way two, described bolt four passes through binding post (100) and the institute of described flexible bus (10)
State conducting connecting bar four threaded, described flange four is fixedly installed on described short extension tube two on described conducting connecting bar four
It is fixed on b ' phase bus casing (41)；Described c ' is connected c ' the phase bus bottom pipe that bus includes setting gradually from top to bottom
(51) the long four-way three, being set on described c ' phase bus bottom pipe (51), the envelope being arranged on described long four-way three top passage port
Cap six, the binding post (100) of described flexible bus (10) is set on the stud two of described c ' phase bus bottom pipe (51).
2. a kind of solid insulation cabinet busbar connection system according to claim 1 it is characterised in that: described flexible bus
(10) there is high low head the position of the connection terminal (100) at two ends, is provided with above or below described connection terminal (100)
Compensate the adjusting washer (disk) (8) of the difference in height of wall scroll flexible bus.
3. a kind of solid insulation cabinet busbar connection system according to claim 2 it is characterised in that: described bolt one (7),
Described bolt two, described bolt three and described bolt four are stud, described long threeway one (3), described long threeway two and
The top of described long threeway three is respectively provided with insulating plug (9), described insulating plug (9) all with described bolt one (7), described bolt two,
Described bolt three and described bolt four or described stud one and stud two are threaded.
4. a kind of solid insulation cabinet busbar connection system according to claim 2 it is characterised in that: described long extension tube one
(2), described long extension tube two, described short extension tube one (12), described short extension tube two, described long threeway one (3), described length three
Logical two and described long threeway three all made using silastic material, described conducting connecting bar one (5), described conducting connecting bar two,
Described conducting connecting bar three and described conducting connecting bar four are all made using copper product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310644889.2A CN103840377B (en) | 2013-12-05 | 2013-12-05 | Solid insulation cabinet busbar connecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310644889.2A CN103840377B (en) | 2013-12-05 | 2013-12-05 | Solid insulation cabinet busbar connecting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103840377A CN103840377A (en) | 2014-06-04 |
| CN103840377B true CN103840377B (en) | 2017-01-18 |
Family
ID=50803622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310644889.2A Active CN103840377B (en) | 2013-12-05 | 2013-12-05 | Solid insulation cabinet busbar connecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103840377B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305340B (en) * | 2015-11-11 | 2018-05-22 | 天津平高智能电气有限公司 | Busbar assembly and the bus-bar system using the busbar assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0428220A1 (en) * | 1989-11-13 | 1991-05-22 | Holec Systemen En Componenten B.V. | Metal-encased modular mediumvoltage distribution system |
| CN1084534C (en) * | 1995-04-26 | 2002-05-08 | 株式会社日立制作所 | Transformer station and breaker apparatus |
| CN101442156A (en) * | 2007-11-20 | 2009-05-27 | 施耐德电器工业公司 | Connecting bar with flat interface |
| CN103066500A (en) * | 2012-12-14 | 2013-04-24 | 北海银河开关设备有限公司 | Bus connecting method of solid insulating ring main unit |
| CN203632007U (en) * | 2013-12-05 | 2014-06-04 | 希格玛电气(珠海)有限公司 | Solid insulation cabinet bus connection system |
-
2013
- 2013-12-05 CN CN201310644889.2A patent/CN103840377B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0428220A1 (en) * | 1989-11-13 | 1991-05-22 | Holec Systemen En Componenten B.V. | Metal-encased modular mediumvoltage distribution system |
| CN1084534C (en) * | 1995-04-26 | 2002-05-08 | 株式会社日立制作所 | Transformer station and breaker apparatus |
| CN101442156A (en) * | 2007-11-20 | 2009-05-27 | 施耐德电器工业公司 | Connecting bar with flat interface |
| CN103066500A (en) * | 2012-12-14 | 2013-04-24 | 北海银河开关设备有限公司 | Bus connecting method of solid insulating ring main unit |
| CN203632007U (en) * | 2013-12-05 | 2014-06-04 | 希格玛电气(珠海)有限公司 | Solid insulation cabinet bus connection system |
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| Publication number | Publication date |
|---|---|
| CN103840377A (en) | 2014-06-04 |
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