CN107086762A - A kind of through-flow branch structure of the master of dc circuit breaker - Google Patents
A kind of through-flow branch structure of the master of dc circuit breaker Download PDFInfo
- Publication number
- CN107086762A CN107086762A CN201710346790.2A CN201710346790A CN107086762A CN 107086762 A CN107086762 A CN 107086762A CN 201710346790 A CN201710346790 A CN 201710346790A CN 107086762 A CN107086762 A CN 107086762A
- Authority
- CN
- China
- Prior art keywords
- frame assembly
- bypass duct
- main branch
- valve module
- master
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/06—Circuits specially adapted for rendering non-conductive gas discharge tubes or equivalent semiconductor devices, e.g. thyratrons, thyristors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
Abstract
The present invention relates to a kind of through-flow branch structure of the master of dc circuit breaker, including frame assembly, main branch valve module, arrester and cooling component；The main branch valve module and arrester are each provided at the top of frame assembly, and cooling component is located at the lower section of frame assembly；The main branch valve module has multigroup, and multigroup main branch valve module is connected in the top of frame assembly in parallel and in parallel with arrester；The main branch valve module includes the RCD components and IGBT components of electrical connection, and the IGBT components include radiator, and the radiator is provided with water inlet and delivery port；The cooling component includes water inlet bypass duct and water outlet bypass duct, and the water inlet bypass duct and water outlet bypass duct are each attached to the lower section of frame assembly, and the water inlet bypass duct is connected with the water inlet of radiator, and water outlet bypass duct is connected with the delivery port of radiator.The present invention not only compact conformation, rationally distributed, and cooling can be realized again.
Description
Technical field
The present invention relates to the main through-flow branch structure of one kind, and in particular to a kind of through-flow branch road knot of the master of dc circuit breaker
Structure, belongs to high pressure, super high voltage direct current electricity transmission technical field.
Background technology
Multi-terminal HVDC transmission and direct current network technology based on flexible direct current are to solve new-energy grid-connected and problem of dissolving
One of effective technology means, and high voltage DC breaker is the key equipment for building direct current network, to DC transmission system and directly
The safe and reliable operation of stream power network has extremely important effect.With continuing to develop for HVDC Transmission Technology, HVDC breaks
The development of road device faces many new challenges.
At present, high voltage DC breaker both domestic and external is in development, there is no the product of maturation.Main through-flow branch road is made
Important component for dc circuit breaker is, it is necessary to bear prolonged high voltage direct current when dc circuit breaker is normally run
Stream, requires that its component species, quantity are more to meet this.The through-flow work characteristics of its long-time is then required as it simultaneously
It is equipped with water route to cool down key components and parts, water route exists simultaneously with circuit, its topology layout complexity safety requirements is also higher.
Therefore how compact, the rational main through-flow main road of arrangement turns into the difficult point of dc circuit breaker structure design.
The content of the invention
The purpose of the present invention is：A kind of not only compact conformation is provided, it is rationally distributed, and can realize that the direct current of cooling breaks again
The through-flow branch structure of master of road device.
In order to achieve the above object, the technical scheme is that：A kind of through-flow branch structure of the master of dc circuit breaker,
Its innovative point is：Including frame assembly, main branch valve module, arrester and cooling component；
The main branch valve module and arrester are each provided at the top of frame assembly, and the cooling component is located at frame assembly
Lower section；
The main branch valve module has multigroup, and multigroup main branch valve module is connected in the top of frame assembly in parallel, and
Multigroup main branch valve module is connected in parallel after being connected in parallel with arrester；
The main branch valve module includes RCD components and IGBT components, and the RCD components are electrically connected with IGBT components,
The IGBT components include radiator, and the radiator is provided with water inlet and delivery port；
The cooling component includes water inlet bypass duct and water outlet bypass duct, and the water inlet bypass duct and water outlet bypass duct are solid
The lower section of frame assembly is scheduled on, and the water inlet bypass duct is connected with the water inlet of radiator, water outlet bypass duct and radiator
Delivery port be connected.
In the above-mentioned technical solutions, the IGBT components of the main branch valve module also include installation frame and IGBT modules,
The installation frame is provided with multiple IGBT modules, and the both sides of each IGBT module are respectively equipped with radiator；Each dissipates
RCD components are equipped with hot device, and RCD components are connected with an IGBT module parallel.
In the above-mentioned technical solutions, the RCD components of the main branch valve module include electric capacity, resistance and diode, described
It is connected after resistance is connected in parallel with electric capacity and with Diode series.
In the above-mentioned technical solutions, the cooling component also includes water pipe clamp, the water inlet bypass duct and water outlet bypass duct
It is fixedly connected on by water pipe clamp on frame assembly.
In the above-mentioned technical solutions, in addition to energy supply component, the two ends of the frame assembly are respectively equipped with insulation support plate,
The energy supply component is fixedly connected with insulation support plate.
In the above-mentioned technical solutions, by-pass switch is additionally provided with the frame assembly, multigroup main branch valve module is simultaneously
It is connected in parallel after connection connection by connecting copper bar with by-pass switch, and the insulation support plate that by-pass switch is provided with frame assembly
It is fixedly connected.
In the above-mentioned technical solutions, the insulation support plate is fixedly connected by insulating supporting beam assembly with frame assembly,
The insulating supporting beam assembly includes metal profile and the insulating supporting beam being fixedly connected, and the metal profile passes through bolt
It is fixedly connected on frame assembly, the insulation support plate is fixedly connected with insulating supporting beam.
In the above-mentioned technical solutions, in addition to shield assemblies, the shield assemblies include shielding cover support members and screen
Cover is covered, the radome is by shielding cover support members with being fixedly connected on the outside of frame assembly, and the shielding is covered with multiple and many
Individual shielding is covered with spacing and the shape that takes the shape of the letter U is arranged in the outside of frame assembly.
In the above-mentioned technical solutions, the frame assembly includes two or more beams of metals, described to include two or two
The two ends of individual above beams of metal are fixedly connected with isolation beam respectively.
In the above-mentioned technical solutions, the outside of a beams of metal of the frame assembly is provided with connecting copper bar, described multigroup
Main branch valve module is connected in parallel after being connected in parallel by connecting copper bar with arrester, and the arrester is provided with frame assembly
Insulation support plate be fixedly connected.
The good effect that has of the present invention is：After the through-flow branch structure of master using the dc circuit breaker of the present invention,
Because the present invention includes frame assembly, main branch valve module, arrester and cooling component；The main branch valve module and arrester
The top of frame assembly is each provided at, the cooling component is located at the lower section of frame assembly；The main branch valve module has multigroup, and
Multigroup main branch valve module is connected in the top of frame assembly in parallel, and multigroup main branch valve module is connected in parallel rear and arrester
It is connected in parallel；The main branch valve module includes RCD components and IGBT components, and the RCD components are electrically connected with IGBT components,
The IGBT components include radiator, and the radiator is provided with water inlet and delivery port；The cooling component includes water inlet branch road
Pipe and water outlet bypass duct, the water inlet bypass duct and water outlet bypass duct are each attached to the lower section of frame assembly, and the water inlet branch
The water inlet of Lu Guanyu radiators is connected, and water outlet bypass duct is connected with the delivery port of radiator；Main branch of the present invention
Valve module and cooling component are respectively provided above and below frame assembly, on the one hand, maximally utilised space, not only
Structure characteristics of compact layout, and space-consuming is less；On the other hand, circuit and being kept completely separate for cooling down are realized, circuit is eliminated
To the adverse effect of other side when being broken down with both coolings one, while the two the convenient independent maintenance of this separate structure,
Facility is provided for later maintenance work, workload is reduced.
Brief description of the drawings
Fig. 1 is a kind of dimensional structure diagram of embodiment of the present invention；
Fig. 2 is a kind of structural representation of embodiment of the present invention；
Fig. 3 is Fig. 2 schematic top plan view；
Fig. 4 is the structural representation of the main branch valve module of the present invention；
Marked in figure：Frame assembly 1, main branch valve module 2, energy supply component 3, insulation support plate 4, by-pass switch component 5,
Insulating supporting beam assembly 6, cooling component 7, connecting copper bar group 8, arrester 9, shield assemblies 10, isolation beam 1-1, beams of metal 1-
2nd, RCD components 2-1, IGBT components 2-2, electric capacity 2-3, resistance 2-4, diode 2-5, IGBT module 2-6, radiator 2-6, metal
Supporting plate 6-1, insulating supporting beam 6-2, water pipe clamp 7-1, water outlet bypass duct 7-2, water inlet bypass duct 7-3, radome support 10-1,
Radome 10-2.
Embodiment
Below in conjunction with accompanying drawing and the embodiment provided, the present invention is further illustrated, but is not limited thereto.
As shown in Figure 1,2,3, 4, a kind of through-flow branch structure of the master of dc circuit breaker, including frame assembly 1, main branch
Valve module 2, arrester 9 and cooling component 7；
The main branch valve module 1 and arrester 9 are each provided at the top of frame assembly 1, and the cooling component 7 is located at frame
The lower section of frame component 1；
The main branch valve module 2 has multigroup, and multigroup main branch valve module 2 is connected in frame assembly in parallel by copper bar
1 top, after realizing that electric current is flowed uniformly through between each main branch valve module, and multigroup main branch valve module 2 is connected in parallel
It is connected in parallel with arrester 9；
The main branch valve module 2 is located at IGBT including RCD component 2-1 and IGBT components 2-2, the RCD components 2-1
Component 2-2 side, and electrically connected by copper bar with IGBT components 2-2, the IGBT components 2-2 includes radiator 2-7, described
Radiator 2-7 is provided with water inlet and delivery port；
The cooling component 7 includes water inlet bypass duct 7-3 and water outlet bypass duct 7-2, the water inlet bypass duct 7-3 and gone out
Water bypass duct 7-2 is each attached to the lower section of frame assembly 1, and the water inlet phase of the water inlet bypass duct 7-2 and radiator 2-7
Connection, water outlet bypass duct 7-2 is connected with radiator 2-7 delivery port.
As shown in figure 4, in order that the structure of winner's branch road valve module 2 is compacter, reasonable, being modularization, being easy to
Safeguard, the IGBT components 2-2 of the main branch valve module 2 also includes installation frame and IGBT modules 2-6, the installation frame
Multiple IGBT module 2-6 are provided with, and each IGBT module 2-6 both sides are respectively equipped with radiator 2-7, multiple IGBT modules
2-6 is conductively connected by being folded in the radiator of each IGBT module both sides；RCD groups are equipped with each radiator 2-7
Part 2-1, and a RCD components 2-1 and IGBT module 2-6 is connected in parallel.The installation frame includes insulated tension pole and pressing plate,
The two ends of the insulated tension pole are fixedly connected with pressing plate respectively, and the inner side of the pressing plate of described insulated tension pole one end is provided with pad
Block, the inner side of the pressing plate of the other end is described to hold down assembly including push rod, axle sleeve and disc spring, the push rod provided with holding down assembly
It is threadedly coupled by locking nut with the pressure strip, the disc spring is located between push rod and axle sleeve, and axle sleeve and close one
Radiator offsets.
Main branch valve module 2 of the present invention matches somebody with somebody the draw-out power supply that promising its IGBT module 2-6 powers, and draw-out power supply cloth
Put in the lower section of frame assembly 1, so, not only route shorting stub is simple, and space is more compact.
As shown in figure 4, in order that structure of the present invention it is more reasonable, the RCD component 2-1 bags of the main branch valve module 2
Include electric capacity 2-3, resistance 2-4 and diode 2-5, the resistance 2-4 and electric capacity 2-3 are connected in parallel rear and connected with diode 2-5
Connection, electric capacity 2-3 of the present invention, resistance 2-4 and diode 2-5 are connected by copper bar.
As shown in Figure 2,3, water inlet bypass duct 7-3 and water outlet bypass duct 7-4 is fixed for convenience, and the cooling component 7 is also
Including water pipe clamp 7-1, the water inlet bypass duct 7-3 and water outlet bypass duct 7-2 are fixedly connected on frame set by water pipe clamp 7-1
On part 1.
As shown in figure 1, being powered for convenience for the Fast mechanical switch of dc circuit breaker, present invention additionally comprises energy supply component
3, the two ends of the frame assembly 1 are respectively equipped with insulation support plate 4, and the energy supply component 3 is fixedly connected with insulation support plate 4,
The insulation support plate 4 is bolted the top for being fixed on insulating supporting beam assembly 6.
As shown in figure 1, when current is excessive, in order to play on the protective effect to the present invention, the frame assembly 1
By-pass switch 5 is additionally provided with, multigroup main branch valve module 2 is in parallel with by-pass switch 5 even by connecting copper bar after being connected in parallel
Connect, and by-pass switch 5 is fixedly connected with the insulation support plate 4 that frame assembly 1 is provided with, the insulation support plate 4 is with passing through bolt
It is fixed on the top for the insulating supporting beam assembly 6 that frame assembly 1 is provided with.
As shown in Figure 2,3, the insulation support plate 4 is fixedly connected by insulating supporting beam assembly 6 with frame assembly 1, institute
State metal profile 6-1 and insulating supporting beam 6-2, the metal profile 6- that insulating supporting beam assembly 6 includes being fixedly connected
1 is bolted to connection on frame assembly 1, and the insulation support plate insulating supporting beam 6-2 is fixedly connected, the metal branch
Fagging 6-1 effectively enhances insulating supporting beam 6-2 support strength.
As shown in figure 1, in order to prevent the present invention from disturbing, in addition to shield assemblies 10, the shield assemblies 10
Including shielding cover support members 10-1 and radome 10-2, the radome 10-2 is by shielding cover support members 10-1 and frame assembly
1 outside is fixedly connected, and the radome 10-2 has multiple, and multiple radome 10-2 have spacing and the shape that takes the shape of the letter U is arranged in frame
The outside of frame component 1.Quantity and the distribution of radome can be adjusted according to actual needs, and form is not limited.
As shown in figure 3, in order that the structure of frame assembly 1 that must be of the invention is simpler, the frame assembly 1 includes two
Individual or two or more beams of metal 1-2, the two ends for including two or more beams of metals 1-2 are fixed with isolation beam 1-1 respectively
Connection.
As shown in figure 1, for the ease of arrester 9 is in parallel with multigroup branch road valve module 2, one of the frame assembly 1
Beams of metal 1-2 outside be provided with connecting copper bar 8, multigroup main branch valve module 2 be connected in parallel after by connecting copper bar 8 with keeping away
Thunder device 9 is connected in parallel, and the arrester 9 is fixedly connected with the insulation support plate 4 that frame assembly 1 is provided with.
It is of the present invention to energize component 3, by-pass switch 5 and arrester 9 insulating supporting corresponding with frame assembly 1 respectively
Plate 4 is connected, and each insulation support plate 4, which is bolted, is fixed on frame assembly 1 corresponding insulating supporting beam assembly 6
Top.
Main branch valve module 2 of the present invention and cooling component 7 are respectively provided above and below frame assembly 1 so that
Main branch valve module 2 forms entirety with cooling component 7, and exists simultaneously, on the one hand, maximally utilised space, not only
Structure characteristics of compact layout, and space-consuming is less so that and cooling component 7 can implement water cooling for key components and parts；The opposing party
Face, realize circuit and cooling be kept completely separate, eliminate circuit with cooling both one break down when to the unfavorable of other side
Influence, while the two the convenient independent maintenance of this separate structure, provides facility for later maintenance work, reduce workload.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (10)
1. a kind of through-flow branch structure of the master of dc circuit breaker, it is characterised in that：
Including frame assembly（1）, main branch valve module（2）, arrester（9）With cooling component（7）；
The main branch valve module（1）And arrester（9）It is each provided at frame assembly（1）Top, the cooling component（7）It is located at
Frame assembly（1）Lower section；
The main branch valve module（2）Have multigroup, and multigroup main branch valve module（2）It is connected in frame assembly in parallel（1）It is upper
Side, and multigroup main branch valve module（2）It is connected in parallel rear and arrester（9）It is connected in parallel；
The main branch valve module（2）Including RCD components（2-1）With IGBT components（2-2）, and the RCD components（2-1）With
IGBT components（2-2）Electrical connection, the IGBT components（2-2）Including radiator（2-7）, the radiator（2-7）Provided with water inlet
Mouth and delivery port；
The cooling component（7）Including water inlet bypass duct（7-3）With water outlet bypass duct（7-2）, the water inlet bypass duct（7-3）With
Water outlet bypass duct（7-2）It is each attached to frame assembly（1）Lower section, and the water inlet bypass duct（7-2）With radiator（2-7）'s
Water inlet is connected, water outlet bypass duct（7-2）With radiator（2-7）Delivery port be connected.
2. the master of dc circuit breaker according to claim 1 is through-flow branch structure, it is characterised in that：The main branch valve
Component（2）IGBT components（2-2）Also include installation frame and IGBT module（2-6）, the installation frame is provided with multiple
IGBT module（2-6）, and each IGBT module（2-6）Both sides be respectively equipped with radiator（2-7）；Each radiator（2-
7）On be equipped with RCD components（2-1）, and RCD components（2-1）With an IGBT module（2-6）It is connected in parallel.
3. the master of dc circuit breaker according to claim 1 is through-flow branch structure, it is characterised in that：The main branch valve
Component（2）RCD components（2-1）Including electric capacity（2-3）, resistance（2-4）And diode（2-5）, the resistance（2-4）With electric capacity
（2-3）It is connected in parallel rear and and diode（2-5）It is connected in series.
4. the master of dc circuit breaker according to claim 1 is through-flow branch structure, it is characterised in that：The cooling component
（7）Also include water pipe clamp（7-1）, the water inlet bypass duct（7-3）With water outlet bypass duct（7-2）Pass through water pipe clamp（7-1）Gu
Surely it is connected to frame assembly（1）On.
5. the master of dc circuit breaker according to claim 1 is through-flow branch structure, it is characterised in that：Also include energy supply group
Part（3）, the frame assembly（1）Two ends be respectively equipped with insulation support plate（4）, the energy supply component（3）With insulation support plate
（4）It is fixedly connected.
6. the master of dc circuit breaker according to claim 1 is through-flow branch structure, it is characterised in that：The frame assembly
（1）On be additionally provided with by-pass switch（5）, multigroup main branch valve module（2）Opened after being connected in parallel by connecting copper bar with bypass
Close（5）It is connected in parallel, and by-pass switch（5）With frame assembly（1）The insulation support plate being provided with（4）It is fixedly connected.
7. the master of the dc circuit breaker according to claim 5 or 6 is through-flow branch structure, it is characterised in that：The insulation
Supporting plate（4）Pass through insulating supporting beam assembly（6）With frame assembly（1）It is fixedly connected, the insulating supporting beam assembly（6）Including
The metal profile being fixedly connected（6-1）With insulating supporting beam（6-2）, the metal profile（6-1）The company of being bolted
It is connected on frame assembly（1）On, the insulation support plate（4）With insulating supporting beam（6-2）It is fixedly connected.
8. the master of dc circuit breaker according to claim 1 is through-flow branch structure, it is characterised in that：Also include radome
Component（10）, the shield assemblies（10）Including shielding cover support members（10-1）And radome（10-2）, the radome
（10-2）By shielding cover support members（10-1）With frame assembly（1）Outside be fixedly connected, the radome（10-2）Have many
It is individual, and multiple radomes（10-2）There is spacing and the shape that takes the shape of the letter U is arranged in frame assembly（1）Outside.
9. the master of dc circuit breaker according to claim 1 is through-flow branch structure, it is characterised in that：The frame assembly
（1）Including two or more beams of metals（1-2）, it is described to include two or more beams of metals（1-2）Two ends respectively with
Isolation beam（1-1）It is fixedly connected.
10. the master of dc circuit breaker according to claim 9 is through-flow branch structure, it is characterised in that：The frame set
Part（1）A beams of metal（1-2）Outside be provided with connecting copper bar（8）, multigroup main branch valve module（2）After being connected in parallel
Pass through connecting copper bar（8）With arrester（9）It is connected in parallel, the arrester（9）With frame assembly（1）The insulating supporting being provided with
Plate（4）It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346790.2A CN107086762A (en) | 2017-05-16 | 2017-05-16 | A kind of through-flow branch structure of the master of dc circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346790.2A CN107086762A (en) | 2017-05-16 | 2017-05-16 | A kind of through-flow branch structure of the master of dc circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107086762A true CN107086762A (en) | 2017-08-22 |
Family
ID=59608242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710346790.2A Pending CN107086762A (en) | 2017-05-16 | 2017-05-16 | A kind of through-flow branch structure of the master of dc circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107086762A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947535A (en) * | 2017-12-22 | 2018-04-20 | 清华四川能源互联网研究院 | A kind of superhigh voltage DC breaker power electronics tributary unit |
| CN108695307A (en) * | 2018-04-17 | 2018-10-23 | 全球能源互联网研究院有限公司 | A kind of change current valve module built in arrester |
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| CN106611679A (en) * | 2015-10-23 | 2017-05-03 | 国网智能电网研究院 | Full-bridge cascaded high-voltage DC circuit breaker valve module |
| CN206775377U (en) * | 2017-05-16 | 2017-12-19 | 常州博瑞电力自动化设备有限公司 | A kind of through-flow branch structure of the master of dc circuit breaker |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102163909A (en) * | 2011-03-24 | 2011-08-24 | 中国电力科学研究院 | Novel water pipe structure for high voltage direct current converter valve |
| CN106611679A (en) * | 2015-10-23 | 2017-05-03 | 国网智能电网研究院 | Full-bridge cascaded high-voltage DC circuit breaker valve module |
| CN105895458A (en) * | 2016-05-26 | 2016-08-24 | 许继电气股份有限公司 | DC circuit breaker and power assembly for transfer branch of DC circuit breaker |
| CN206775377U (en) * | 2017-05-16 | 2017-12-19 | 常州博瑞电力自动化设备有限公司 | A kind of through-flow branch structure of the master of dc circuit breaker |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947535A (en) * | 2017-12-22 | 2018-04-20 | 清华四川能源互联网研究院 | A kind of superhigh voltage DC breaker power electronics tributary unit |
| CN107947535B (en) * | 2017-12-22 | 2024-02-20 | 清华四川能源互联网研究院 | Power electronic branch unit of ultrahigh voltage direct current circuit breaker |
| CN108695307A (en) * | 2018-04-17 | 2018-10-23 | 全球能源互联网研究院有限公司 | A kind of change current valve module built in arrester |
| CN108695307B (en) * | 2018-04-17 | 2023-08-15 | 全球能源互联网研究院有限公司 | Converter valve module with built-in lightning arrester |
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