CN107492826A - A kind of high-tension switch cabinet - Google Patents
A kind of high-tension switch cabinet Download PDFInfo
- Publication number
- CN107492826A CN107492826A CN201710759242.2A CN201710759242A CN107492826A CN 107492826 A CN107492826 A CN 107492826A CN 201710759242 A CN201710759242 A CN 201710759242A CN 107492826 A CN107492826 A CN 107492826A
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- China
- Prior art keywords
- handcart
- room
- bus
- contact
- box
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
- H02B11/04—Isolating-contacts, e.g. mountings or shieldings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/28—Earthing arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a kind of high-tension switch cabinet, including low-pressure chamber, handcart room, bus-bar room and cable vault, handcart room, pressure relief plate is provided with the top of bus-bar room and cable vault, handcart room is internally provided with valve, the side of valve is provided with handcart and handcart is located at the bottom of low-pressure chamber, bus-bar room is internally provided with contact box, contact box includes upper contact head box and lower contact box, the upper end of upper contact head box is connected with main bus-bar, wall bushing is provided with the outside of main bus-bar, the bottom of upper contact head box is provided with radome, radome is a kind of filament wire netting, the upper and lower ends of contact box are provided with contact box supporting plate, load-bearing reinforcement is provided with contact box supporting plate.The present invention is by setting contact box supporting plate, and adding load-bearing reinforcement on the supporting plate makes contact box more stable, will not be deformed because of gravity, radome is a filament wire netting, the embedding surrounding poured in contact box bottom and bottom, so as to solve the problems, such as corona discharge.
Description
Technical field
The present invention relates to a kind of switch cubicle, more particularly to a kind of high-tension switch cabinet.
Background technology
It is well known that switch cubicle is a kind of electrical equipment, it is to be processed with aluminizing zine plate through numerical control metal plate, two-fold roll forming
Afterwards, it is connected with forming, the component in cabinet is typically handled using galvanized sheet or through zincincation, and each function in switch cubicle is small
Room, there is the isolation of metal shrouding, and there are independent pressure relief channels, there is more perfect " five is anti-" function, but switch cubicle
Also in place of having some shortcomings, the support beam that the contact box of switch cubicle is anterior is arranged on the reinforcement of double-bending, contact box rear portion
Be integrally fixed in the middle part of sliding channel of rear cabinet, almost without the ground supports of load-bearing, this resulted in cabinet easily in vibration because
Gravity and deform；The secondary plug of handcart facilitates, but user uses not for handcart manufacture in bottom
It is convenient, because only that after handcart promotes testing position in cabinet, Secondary socket could be inserted in the bottom of cabinet, because handcart is in cabinet
The space of the left and right sides is natively very narrow and small, and hand makes not energetically, even if plugging socket, socket flexible pipe can also be exposed at handcart front,
Handcart is pushed into, if flexible pipe is filled in into narrow space with hand, flexible pipe will rub with car body, and after multiple, flexible pipe can damage
It is bad；Bus A, B, C of cabinet are triangularly arranged, and this arrangement is that but the branch line of B phase contact boxs is certain to save space originally
Understand through A, C bus, and it is closer to the distance, easily cause electric field inequality；Also handcart is too high, the positioning of operating position in cabinet
Less stable；Switch cabinet is in actual motion, and contact box and wall conduit are due to electric field concentration and skewness, easily production
Raw corona discharge, after multiple discharge, insulation ag(e)ing, cause insulation fault.
The content of the invention
The technical problem to be solved in the present invention is the defects of overcoming prior art, there is provided a kind of high-tension switch cabinet, makes high pressure
The function of switch cubicle is more perfect, makes contact box stable, avoids the phenomenon of corona discharge.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
A kind of high-tension switch cabinet of the present invention, including low-pressure chamber, handcart room, bus-bar room and cable vault, the side of the low-pressure chamber are set
Hand line room is equipped with, the side of the handcart room is provided with bus-bar room, and the side of the bus-bar room is provided with cable vault, the handcart
Be provided with pressure relief plate at the top of room, bus-bar room and cable vault, cabinet before the low-pressure chamber and handcart room composition, the bus-bar room and
Cabinet after cable vault's composition, is connected with transport guide rails below the preceding cabinet, the handcart room is internally provided with valve, the work
The side of door is provided with handcart and handcart is located at the bottom of low-pressure chamber, and the bus-bar room is internally provided with contact box and contact box
The inside of handcart room is extended to horizontal through the side wall of bus-bar room, the contact box is located at the opposite side and contact of valve
Box, valve and handcart are on same level axis, and the contact box includes upper contact head box and lower contact box, the upper contact head
The upper end of box is connected with main bus-bar, and wall bushing is provided with the outside of the main bus-bar, and the main bus-bar is divided into A lines, B lines and C
Line, the A lines, B lines and C lines are horizontally disposed, and the bottom of the upper contact head box is provided with radome, and the radome is one kind
Filament wire netting, the upper and lower ends of the contact box are provided with contact box supporting plate, are provided with the contact box supporting plate
Load-bearing reinforcement, the upper contact head box pass through the row of extraction and master with being provided with the row of extraction, the upper contact head box on lower contact box
Bus is connected, and the side of the handcart is provided with handcart room door, and the opposite side of the handcart is provided with handcart top panel, described
The bottom of handcart is provided with handcart lockplate, and the side of the handcart is provided with secondary plug connecting tube, and the secondary plug connects
One end of adapter is connected with secondary plug, is connected with Secondary socket at the top of the secondary plug, the Secondary socket it is another
End is fixed with chain catch.
As a preferred technical solution of the present invention, handcart door lock, the handcart room are provided with the handcart room door
The middle position of door bottom is provided with earthed switch handle hole, and the bottom of the earthed switch handle hole is provided with inspection hole, institute
The both sides for stating inspection hole are provided with air vent and air vent is symmetrical along the center of inspection hole.
As a preferred technical solution of the present invention, the handcart is internally provided with insulating cylinder, the handcart and two
Secondary plug is connected, and is provided with insulation cover at the top of the handcart, and the side at the top of the handcart is provided with contact arm,
The side of the handcart bottom is provided with lower contact arm, and one end of the upper contact arm and lower contact arm is provided with Mume flower contact.
As a preferred technical solution of the present invention, the valve includes movable units, upper valve and lower valve, institute
The upper end for stating movable units is connected with valve, and the lower end of the movable units is connected with lower valve, the upper valve
Side is provided with upper spacer, and the side of the lower valve is provided with lower clapboard, the upper spacer with lower clapboard and bus-bar room side
Wall is connected, and the upper spacer, lower clapboard and bus-bar room side wall collectively constitute bus-bar room handcart room separation structure.
As a preferred technical solution of the present invention, the lower end of the lower contact box is connected with cable mounting row, described
The inner side of cable mounting row is provided with current transformer, and the lower contact box mounts row with cable by the row of extraction and is connected.
Compared with prior art, beneficial effects of the present invention are as follows：
The present invention is by setting contact box supporting plate, and adding load-bearing reinforcement on the supporting plate makes contact box more stable,
It will not be deformed because of gravity, prevent contact box from being misplaced with static contact seat, radome is a filament wire netting, and embedding pour is being touched
Head cartridge bottom and the surrounding of bottom, reach suppression field strength, shield the purpose of electric field, so as to solve the problems, such as corona discharge.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the preceding cabinet schematic diagram of the present invention；
Fig. 3 is the front view of the present invention；
Fig. 4 is the structural representation of handcart of the present invention；
Fig. 5 is top view of the present invention；
In figure：1st, low-pressure chamber；2nd, handcart room；3rd, bus-bar room；4th, cable vault；5th, pressure relief plate；6th, transport guide rails；7th, valve；8th, hand
Car；9th, contact box；10th, upper contact head box；11st, lower contact box；12nd, main bus-bar；13rd, wall bushing；14th, radome；15th, contact box
Supporting plate；16th, load-bearing reinforcement；17th, the row of extraction；18th, handcart room door；19th, handcart top panel；20th, handcart lockplate；21st, two
Secondary plug connecting tube；22nd, secondary plug；23rd, Secondary socket；24th, chain catch；25th, handcart door lock；26th, earthed switch operates
Hole；27th, inspection hole；28th, air vent；29th, insulating cylinder；30th, insulate cover；31st, upper contact arm；32nd, lower contact arm；33rd, Mume flower contact；
34th, movable units；35th, upper valve；36th, lower valve；37th, upper spacer；38th, lower clapboard；39th, cable mounting row；40th, electric current is mutual
Sensor.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1
As Figure 1-5, the present invention provides a kind of high-tension switch cabinet, including low-pressure chamber 1, handcart room 2, bus-bar room 3 and cable vault
4, the side of low-pressure chamber 1 is provided with hand line room 2, and the side of handcart room 2 is provided with bus-bar room 3, and the side of bus-bar room 3 is provided with electricity
Cable room 4, the top of handcart room 2, bus-bar room 3 and cable vault 4 are provided with pressure relief plate 5, and low-pressure chamber 1 and handcart room 2 form preceding cabinet,
Cabinet after bus-bar room 3 and cable vault 4 form, transport guide rails 6 are connected with below preceding cabinet, handcart room 2 is internally provided with valve 7,
The side of valve 7 is provided with handcart 8 and handcart 8 is located at the bottom of low-pressure chamber 1, and bus-bar room 3 is internally provided with contact box 9 and touched
Head cartridge 9 extends to the inside of handcart room 2 horizontal through the side wall of bus-bar room 3, contact box 9 be located at the opposite side of valve 7 and
Contact box 9, valve 7 and handcart 8 are on same level axis, and contact box 9 includes upper contact head box 10 and lower contact box 11, on
The upper end of contact box 10 is connected with main bus-bar 12, and the outside of main bus-bar 12 is provided with wall bushing 13, and main bus-bar 12 divides for A lines, B
Line and C lines, A lines, B lines and C lines are horizontally disposed, and the bottom of upper contact head box 10 is provided with radome 14, and radome 14 is one kind
Filament wire netting, the upper and lower ends of contact box 9 are provided with contact box supporting plate 15, load-bearing are provided with contact box supporting plate 15
Reinforcement 16, upper contact head box 10 pass through the row of extraction 17 and master with being provided with the row of extraction 17, upper contact head box 10 on lower contact box 11
Bus 12 is connected, and the side of handcart 8 is provided with handcart room door 18, and the opposite side of handcart 8 is provided with handcart top panel 19, handcart
8 bottom is provided with handcart lockplate 20, and the side of handcart 8 is provided with secondary plug connecting tube 21, secondary plug connecting tube 21
One end be connected with secondary plug 22, the top of secondary plug 22 is connected with Secondary socket 23, and the other end of Secondary socket 23 is consolidated
Surely there is chain catch 24.
Further, handcart door lock 25 is provided with handcart room door 18, the middle position of the bottom of handcart room door 18 is provided with
Earthed switch handle hole 26, the bottom of earthed switch handle hole 26 are provided with inspection hole 27, and the both sides of inspection hole 27 are provided with
The center of air vent 28 and air vent 28 along inspection hole 27 is symmetrical, reduces potential safety hazard.
Handcart 8 is internally provided with insulating cylinder 29, and handcart 8 is connected with secondary plug 22, and the top of handcart 8 is provided with absolutely
Edge cover 30, the side at the top of handcart 8 are provided with contact arm 31, and the side of the bottom of handcart 8 is provided with lower contact arm 32, upper contact arm 31
Mume flower contact 33 is provided with one end of lower contact arm 32, handcart 8 is operated.
Valve 7 includes movable units 34, upper valve 35 and lower valve 36, the upper end of movable units 34 and is connected with work
Door 35, the lower end of movable units 34 is connected with lower valve 36, and the side of upper valve 35 is provided with upper spacer 37, lower valve 36
Side is provided with lower clapboard 38, and upper spacer 37 is connected with lower clapboard 38 with the side wall of bus-bar room 3, upper spacer 37, lower clapboard 38
And the side wall of bus-bar room 3 collectively constitutes bus-bar room handcart room separation structure, there is provided independent space.
The lower end of lower contact box 11 is connected with cable mounting row 39, and the inner side of cable mounting row 39 is provided with current transformer
40, lower contact box 11 is connected by the row of extraction 17 with cable mounting row 39, becomes a loop.
Specifically, the shell and dividing plate of switch cubicle are made up of quality steel plate, there is very strong anti-oxidant, corrosion-resistant function,
And rigidity and mechanical strength are higher than common low carbon steel plate, pressure relief plate 5 is equipped with the top of three hyperbaric chambers, internal fault occurs
When, the rise of high pressure room pressure, because cabinet door has reliably sealed, gases at high pressure will pass through the pressure release of pressure relief plate 5, adjacent switch cubicle
Separated by respective dividing plate, still have air cushion after spelling cabinet, can prevent switch cubicle by fault electric arc through fusing, low-pressure chamber
Individual compartment is assembled into, is separated with high-pressure area, contact box 9 utilizes the part pressure release passage of preceding cabinet, by A, B, C three-phase bus
Horizontal homogeneous is placed, and this structure substantially improves electric field, and three-phase branch line does not pass through mutually, reduces insulation risk, and handcart secondary is inserted
Seat 23 changes into the front of car, is inserted to top, is easy to observe the interdigitation of Secondary socket 23, while flexible pipe will not also damage because of friction
Bad, the rear end of contact box 9 is supported by contact box supporting plate 15, and by the load-bearing of load-bearing reinforcement 16, can improve the steady of contact box 9
Qualitative, contact box 9 is deformed because of gravity when avoiding the cabinet from vibrating, and radome 14 is a filament wire netting, embedding to pour
The bottom of contact box 9 and the surrounding of bottom, reach suppression field strength, shield the purpose of electric field, avoid contact box 9 and wall conduit due to
Electric field is concentrated and skewness, easily produces corona discharge, after multiple discharge, insulation ag(e)ing, causes insulation fault.
The present invention makes contact box by setting contact box supporting plate 15, and adding load-bearing reinforcement 16 in supporting plate 15
9 is more stable, will not be deformed because of gravity, prevents contact box 9 from being misplaced with static contact seat, radome 14 is a filament gold
Belong to net, the embedding surrounding poured in the bottom of contact box 9 and bottom, reach suppression field strength, shield the purpose of electric field, put so as to solve corona
Electric problem.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (5)
1. a kind of high-tension switch cabinet, including low-pressure chamber（1）, handcart room（2）, bus-bar room（3）And cable vault（4）, it is characterised in that
The low-pressure chamber（1）Side be provided with hand line room（2）, the handcart room（2）Side be provided with bus-bar room（3）, the mother
Line room（3）Side be provided with cable vault（4）, the handcart room（2）, bus-bar room（3）And cable vault（4）Top be provided with
Pressure relief plate（5）, the low-pressure chamber（1）And handcart room（2）Cabinet before composition, the bus-bar room（3）And cable vault（4）Cabinet after composition,
Transport guide rails are connected with below the preceding cabinet（6）, the handcart room（2）Be internally provided with valve（7）, the valve（7）
Side be provided with handcart（8）And handcart（8）Positioned at low-pressure chamber（1）Bottom, the bus-bar room（3）Be internally provided with contact
Box（9）And contact box（9）Horizontal through bus-bar room（3）Side wall extend to handcart room（2）Inside, the contact box
（9）Positioned at valve（7）Opposite side and contact box（9）, valve（7）And handcart（8）It is on same level axis, it is described to touch
Head cartridge（9）Including upper contact head box（10）With lower contact box（11）, the upper contact head box（10）Upper end be connected with main bus-bar（12）,
The main bus-bar（12）Outside be provided with wall bushing（13）, the main bus-bar（12）It is divided into A lines, B lines and C lines, the A
Line, B lines and C lines are horizontally disposed, the upper contact head box（10）Bottom be provided with radome（14）, the radome（14）For
A kind of filament wire netting, the contact box（9）Upper and lower ends be provided with contact box supporting plate（15）, the contact box support
Plate（15）On be provided with load-bearing reinforcement（16）, the upper contact head box（10）With lower contact box（11）On be provided with extraction row
（17）, the upper contact head box（10）Pass through the row of extraction（17）With main bus-bar（12）It is connected, the handcart（8）Side be provided with
Handcart room door（18）, the handcart（8）Opposite side be provided with handcart top panel（19）, the handcart（8）Bottom be provided with
Handcart lockplate（20）, the handcart（8）Side be provided with secondary plug connecting tube（21）, the secondary plug connecting tube
（21）One end be connected with secondary plug（22）, the secondary plug（22）Top be connected with Secondary socket（23）, described two
Secondary socket（23）The other end be fixed with chain catch（24）.
A kind of 2. high-tension switch cabinet according to claim 1, it is characterised in that the handcart room door（18）On be provided with hand
Car door lock（25）, the handcart room door（18）The middle position of bottom is provided with earthed switch handle hole（26）, the ground connection opens
Close handle hole（26）Bottom be provided with inspection hole（27）, the inspection hole（27）Both sides be provided with air vent（28）It is and logical
Air holes（28）Along inspection hole（27）Center it is symmetrical.
A kind of 3. high-tension switch cabinet according to claim 1, it is characterised in that the handcart（8）Be internally provided with absolutely
Edge cylinder（29）, the handcart（8）With secondary plug（22）It is connected, the handcart（8）Top be provided with insulation cover（30）,
The handcart（8）The side at top is provided with contact arm（31）, the handcart（8）The side of bottom is provided with lower contact arm（32）,
The upper contact arm（31）With lower contact arm（32）One end be provided with Mume flower contact（33）.
A kind of 4. high-tension switch cabinet according to claim 1, it is characterised in that the valve（7）Including movable units
（34）, upper valve（35）With lower valve（36）, the movable units（34）Upper end be connected with valve（35）, it is described removable
Moving cell（34）Lower end be connected with lower valve（36）, the upper valve（35）Side be provided with upper spacer（37）, under described
Valve（36）Side be provided with lower clapboard（38）, the upper spacer（37）With lower clapboard（38）Equal and bus-bar room（3）Side wall phase
Connection, the upper spacer（37）, lower clapboard（38）And bus-bar room（3）Side wall collectively constitutes bus-bar room handcart room separation structure.
A kind of 5. high-tension switch cabinet according to claim 1, it is characterised in that the lower contact box（11）Lower end connection
There is cable mounting row（39）, the cable mounting row（39）Inner side be provided with current transformer（40）, the lower contact box
（11）Pass through the row of extraction（17）Mount and arrange with cable（39）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710759242.2A CN107492826B (en) | 2017-08-30 | 2017-08-30 | A kind of high-tension switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710759242.2A CN107492826B (en) | 2017-08-30 | 2017-08-30 | A kind of high-tension switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107492826A true CN107492826A (en) | 2017-12-19 |
| CN107492826B CN107492826B (en) | 2018-10-09 |
Family
ID=60651182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710759242.2A Active CN107492826B (en) | 2017-08-30 | 2017-08-30 | A kind of high-tension switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107492826B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1087483A1 (en) * | 1999-09-23 | 2001-03-28 | Natus GmbH & Co.KG | Electrical switchgear |
| CN201163709Y (en) * | 2008-02-03 | 2008-12-10 | 厦门华电开关有限公司 | Shifting type metal closed switch apparatus |
| CN201185313Y (en) * | 2008-04-18 | 2009-01-21 | 川开电气有限公司 | Novel switch cabinet |
| CN101630816A (en) * | 2009-07-13 | 2010-01-20 | 余永松 | Shielding contact box of high-voltage switch cabinet |
| CN201956608U (en) * | 2010-12-22 | 2011-08-31 | 浙江科润电力设备有限公司 | Plug structure of moving alternating-current closed switch equipment |
| CN203301025U (en) * | 2013-05-28 | 2013-11-20 | 环宇集团（南京）有限公司 | Armored movable AC metal closed switch device |
| CN205016904U (en) * | 2015-07-28 | 2016-02-03 | 江苏南瑞泰事达电气有限公司 | 12kV cubical switchboard |
| CN205670623U (en) * | 2016-04-27 | 2016-11-02 | 厦门理工学院 | A kind of KYN 12kV Intelligent high voltage switch device |
| CN205944849U (en) * | 2016-07-30 | 2017-02-08 | 南通东源协力电器有限公司 | ABB is contact box for cubical switchboard |
-
2017
- 2017-08-30 CN CN201710759242.2A patent/CN107492826B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1087483A1 (en) * | 1999-09-23 | 2001-03-28 | Natus GmbH & Co.KG | Electrical switchgear |
| CN201163709Y (en) * | 2008-02-03 | 2008-12-10 | 厦门华电开关有限公司 | Shifting type metal closed switch apparatus |
| CN201185313Y (en) * | 2008-04-18 | 2009-01-21 | 川开电气有限公司 | Novel switch cabinet |
| CN101630816A (en) * | 2009-07-13 | 2010-01-20 | 余永松 | Shielding contact box of high-voltage switch cabinet |
| CN201956608U (en) * | 2010-12-22 | 2011-08-31 | 浙江科润电力设备有限公司 | Plug structure of moving alternating-current closed switch equipment |
| CN203301025U (en) * | 2013-05-28 | 2013-11-20 | 环宇集团（南京）有限公司 | Armored movable AC metal closed switch device |
| CN205016904U (en) * | 2015-07-28 | 2016-02-03 | 江苏南瑞泰事达电气有限公司 | 12kV cubical switchboard |
| CN205670623U (en) * | 2016-04-27 | 2016-11-02 | 厦门理工学院 | A kind of KYN 12kV Intelligent high voltage switch device |
| CN205944849U (en) * | 2016-07-30 | 2017-02-08 | 南通东源协力电器有限公司 | ABB is contact box for cubical switchboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107492826B (en) | 2018-10-09 |
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