CN107039955B - A kind of mixed type dc circuit breaker valve arrangement of square arrangement - Google Patents
A kind of mixed type dc circuit breaker valve arrangement of square arrangement Download PDFInfo
- Publication number
- CN107039955B CN107039955B CN201710354949.5A CN201710354949A CN107039955B CN 107039955 B CN107039955 B CN 107039955B CN 201710354949 A CN201710354949 A CN 201710354949A CN 107039955 B CN107039955 B CN 107039955B
- Authority
- CN
- China
- Prior art keywords
- branch
- valve
- tower
- valve tower
- rectangular
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/80—Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a kind of mixed type dc circuit breaker valve arrangements of square arrangement, it is by on-state branch, current limliting branch, energy consumption branch composition: its on-state branch routes the tower high-speed switch of layer distributed and constitutes rectangular on-state branch valve tower positioned at the on-state valve layer of the bottom, the power device valve heap of its current limliting branch routing layer distributed constitutes rectangular valve tower, its branch routing arrester pickup of consuming energy constitutes the energy consumption branch tower of square structure, it is shared in a line length or width direction as long as above-mentioned three kinds of valve towers have, so that the entirety of hybrid circuit-breaker is in the square valve tower structure of specification, advantageously reduce the volume of valve tower, reduce occupied area, wiring is facilitated to arrange；Meanwhile valve tower realizes two kinds of valve hall arrangements of suspention and support in which can be convenient.
Description
Technical field
The invention belongs to dc circuit breakers, and in particular to a kind of mixed type dc circuit breaker valve arrangement of square arrangement.
Background technique
With the development of multi-terminal HVDC transmission technology, high voltage DC breaker will become guarantee system safe and stable operation
One of key equipment.
Hybrid dc circuit breaker is concerned as one of numerous solutions.It is former according to the work of hybrid circuit breaker
Reason, generally comprises IGBT valve tower component, fast switch assemblies, on-state branch component, bulky, and especially electric current turns the most
The presence of the fast switch assemblies of Primary Component is moved, so that valve tower layout is in irregular status more, volume is big, weight weight, unfavorable
Repair and maintenance is arranged in the inlet-outlet line in valve hall.
CN201610357836.6 discloses a kind of dc circuit breaker valve tower structure, but it does not contain Fast mechanical switch portion
Part is only expounded IGBT valve module.Valve hall arrangement in engineer application also needs additionally to consider switch block, on-state valve layer
Land occupation and brace foundation.The hybrid direct-current breaker topology structure of this case combination independent research by Fast mechanical switch,
IGBT valve module tower, on-state valve layer organic assembling become relatively independent and inter-related valve tower, and public side design is so that whole
Body breaker has well-regulated outer rectangular outer profile, has the characteristics that take up little area, is light-weight.
Summary of the invention
A kind of complete, regular square arrangement hybrid circuit-breaker valve arrangement is provided by the present invention, it includes quick machines
Tool switch, concatenated power device valve heap, energy consumption arrester.
Mixed type high voltage DC breaker valve of the invention, it is special it includes transfer branch, on-state branch and energy consumption branch
Sign is: the branch respectively forms the rectangular valve tower of layer series structure, and each rectangular valve tower is by sharing at least one
Side length composition has the high voltage DC breaker valve tower of regular square profile.
The subelement of the transfer branch routing modularized design composition is connected in series, by way of interlayer series connection same layer
Form rectangular valve tower；Between upper layer and lower layer subelement, it is connected to respectively between same level layer by pillar or suspension insulator
Braced frame on, height is identical with energy consumption branch valve tower, on-state branch valve tower, and length and the branch valve tower that consumes energy are identical.
The arrester subelement of the energy consumption branch routing modularized design composition forms the rectangular valve tower of parallel overlaying structure；
Between upper layer and lower layer subelement, it is connected in respective braced frame between same level layer by pillar or suspension insulator；
Its height and length is identical with current limliting branch valve tower；Its adjacent two layers potential difference is identical with current limliting valve tower.
The group in such a way that layering is connected in parallel of the energy consumption rectangular valve tower of branch described in the rectangular valve tower of the transfer branch and 3
Squarely current limliting branch valve tower；The length of 3 valve tower, height, layer are high, the number of plies is consistent, and the width of current limliting valve tower is to turn
Move the rectangular valve tower of branch and and the sum of the rectangular valve tower width of branch that consumes energy.
The n-layer switch tower of the on-state branch routing first floor on-state valve tower layer peace line position thereon forms n+1 layers of square valve
Tower；The first floor and n-layer length size having the same, and total height and current limliting branch valve tower phase as claimed in claim 4
Together.
The on-state branch valve tower, of same size, the two of length and rectangular current limliting valve tower as claimed in claim 4
Collectively form the rectangular valve tower outer profile of high voltage DC breaker.
The high voltage DC breaker include at least two sets of independent high pressure powering devices, respectively current limliting branch valve tower and
The energy supply of on-state branch valve tower；And the high pressure powering device is located at the rectangular throwing in ground level of the rectangular tower of high voltage DC breaker
Within the scope of shadow.
The high voltage DC breaker top layout has a grading ring, and the grading ring be used as simultaneously on-state branch valve tower and
Current channel between current limliting branch valve tower.
Form connection bus between the on-state branch valve tower of the high-voltage circuitbreaker valve tower entirety, current limliting branch valve tower,
Busbar is located inside valve tower, without departing from the square contour of breaker valve tower.
According to the present invention, the on-state valve tower of the Fast mechanical switch group squarely of on-state valve layer and n-layer structure, advantageously,
On-state valve layer and each layer of high-speed switch tower length having the same, width and layer are high, collectively constitute rectangular outer with specification
The valve tower of profile constructs, and has the modular construction expanded with voltage class, by with design voltage etc. between the valve layer
The corresponding pillar of grade or suspension insulator are connected on the metal framework of layer.
According to the present invention, the rectangular current limliting valve tower, the current limliting valve layer including the straight string data current limliting valve module composition of multilayer, often
A flow-limiting valve valve layer is made of the series connection of at least one set of flow-limiting valve component to realize higher voltage class, each flow-limiting valve valve
Layer be made of the connection of an at least flow-limiting valve modules in parallel to realize higher current class, by electric with design between current limliting valve layer
The corresponding pillar of pressure grade or suspension insulator are connected on the metal framework of layer, constitute open-ended rectangular limit layered
Flow valve tower.
According to the present invention, the rectangular current limliting branch valve tower, further includes arrester tower layered, between arrester layer
It is connected on the metal framework of layer by pillar corresponding with design voltage grade or suspension insulator, composition is layered can
The rectangular arrester tower expanded, advantageously, arrester tower have length identical with current limliting valve tower, layer height, the number of plies, and width will
Energy is absorbed by design to determine, further, arrester tower and current limliting the valve tower side of composition current limliting branch side by side in the width direction
Shape valve tower.
In the current limliting branch valve tower, inspection platform is equipped between each layer of arrester valve tower and current limliting valve tower.
Each layer of the arrester valve tower is also included as the interlayer supply unit of current limliting valve layer module energy supply.
The breaker valve tower main body is fixed on insulator structure using support or suspension method, and insulator has phase
Same constructs and is fixed on the metal framework of breaker valve.
The breaker valve tower is also included as the main energy supply transformation of Fast mechanical switch, the energy supply of flow-limiting valve component hardware equipment
Device, and main energy supply transformer arrangement is within the scope of the outer profile of breaker valve tower.
The straight string data current limliting valve module includes the straight string data press-loading valve stack of at least one set IGBT, and multiple above press-loading valve stacks are adopted
It is connected with tandem mode, current limliting valve module includes that at least two groups are used for the diode press-loading valve stack that electric current commutates, and two poles
The quantity of pipe press-loading valve stack is twice of IGBT press-loading valve stack, and the voltage class of diode press-loading valve stack is IGBT press-loading valve stack
Twice, the IGBT press-loading valve stack also includes to press RCD component correspondingly with IGBT, and RCD component can be arranged in IGBT
It is pressed front and back side or the upper and lower sides of heap, the diode press-loading valve stack is also contained in diode and presses RC component correspondingly,
RC component can be arranged in front and back side or the upper and lower sides of diode press fitting heap.
The straight string data current limliting valve module be included as IGBT drive module energy supply energy supply coil, energize coil quantity and
IGBT is corresponded.
The IGBT press-loading valve stack include spaced radiator, IGBT device, insulated pull rod, pressing plate, easily,
Outside is arranged in the hydraulic side for installing tooling additional when its series connection.
The diode press-loading valve stack includes spaced radiator, diode component, insulated pull rod, pressing plate, side
Just, outside is arranged in the hydraulic side for installing tooling additional when its series connection.
The current limliting valve tower and arrester tower are connected to respective metal framework by support insulator in same interlayer, altogether
The current limliting branch valve tower frame of isomorphism squarely advantageously improves the anti-seismic performance of valve tower entirety.
The on-state valve tower and current limliting branch valve tower are connected to respective metal frame by support insulator in same interlayer
Frame collectively forms rectangular breaker valve tower frame, advantageously improves the anti-seismic performance of valve tower entirety.
The plane of each interlayer support insulator of the dc circuit breaker valve tower and its metal framework being fixed thereon composition
It is interior, it arranges oblique pull insulator, improves the integral strength and stability of structure, advantageously improve the anti-seismic performance of valve tower entirety.
Detailed description of the invention
Fig. 1 gives square valve tower structure schematic diagram of the present invention；
Fig. 2 gives flow-limiting valve segment unit structure chart of the present invention；
Fig. 3 gives current limliting valve layer structure chart of the present invention；
Fig. 4 gives on-state branch square valve tower structure figure of the present invention；
Fig. 5 gives square valve tower structure figure of the present invention；
Fig. 6 gives the structure chart of suspention form embodiment of the present invention；
Fig. 7 gives electric topology figure of the present invention；
Wherein, 1- interlayer pillar or suspension insulator, 2- interlayer oblique pull insulator, 3- diode valve component, 4- shielding case,
5- metal framework, 6- valve module supporting insulator, 7- drive module, 8-igbt valve module, 9-RCD component, 10- flow-limiting valve Duan Dan
Member, 11- interconnect busbar, 12- arrester valve segment unit, 13- supply unit, 14- mechanical switch valve layer, 15- on-state valve layer, 16-
Support or suspension insulator, the rectangular on-state valve tower of 17-, the rectangular current limliting valve tower of 18-.
Specific embodiment
Below with reference to attached drawing, technical solution of the present invention is described in detail.
It includes Fast mechanical switch, on-state valve, flow-limiting valve that Fig. 1 to Fig. 6, which successively illustrates one kind provided by the present invention,
The complete hybrid circuit breaker embodiment of tower, arrester tower, it should be apparent that, the tower structure with regular square profile makes
It has and significantly takes up little area, is laid out succinct advantage.
In the present embodiment, the design voltage grade of current limliting valve module is 25kV, and two groups of concatenated modes is used to realize
50kV voltage class subelement, further, the flow-limiting valve construction of same layer use two groups of identical 50kV voltage class components
It realizes 100kV current limliting valve layer, as a kind of optional configuration, can be mentioned using two groups and by the way of the above flow-limiting valve modules in parallel
High current grade.As shown in implementation example figure 3.
The inlet-outlet line of current limliting valve module is located at the midpoint of the diode valve heap in H bridge construction, passes through the reasonable of copper bar
Arrangement, it can the same layer series connection for completing horizontal direction can also complete the series winding in interlayer direction.
Corresponding with current limliting valve layer is to have that identical layer is high, arrester valve layer of length, the current limliting of same layer when assembly
Valve layer and arrester valve layer are constructed simultaneously, and complete to connect support insulator between the two, composition before installing next layer
Firm current limliting branch valve layer frame.
Each layer of arrester valve layer includes the IGBT power device function that interlayer supply unit is this layer of place, the present embodiment
In, interlayer energy supply transformer is located at the side inside arrester valve layer, and correspondingly, main energy supply transformer is located at interlayer transformer
Axis direction, this makes the well-regulated whole outer profile of breaker valve tower tool.
It is connected on respective metal framework between two adjacent current limliting branch valve layer with pillar or suspension insulator, it is real
The series winding of existing multilayer, advantageously, the arrangement of each layer oblique pull insulator will effectively strengthen integrally-built support strength and antidetonation
Ability.
Fig. 1 gives the pillar embodiment of breaker of the present invention: passing through interlayer pillar between i.e. adjacent two layers
Insulator is connected on respective frame, meanwhile, the last layer valve layer of each rectangular valve tower is fixed on the high-voltage strut of bottom
On insulator；It is clear that removing valve arrangement for the tower breaker of square valve of the invention, the expansion of voltage class is to be easy to real
Existing.
Correspondingly, above-mentioned rectangular breaker valve tower can pass through suspention embodiment realization, i.e. interlayer support insulator, height
Pressure support insulator is changed to interlayer suspension insulator, high voltage suspended insulator respectively, as shown in implementation example figure 7.
The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, although those skilled in the art
After reading the application, various modifications or change are carried out referring to this present invention of above-described embodiment, but these modifications or change are in Shen
Please pending right application of the invention it is claimed within the scope of.
Claims (4)
1. a kind of mixed type dc circuit breaker valve arrangement of square arrangement, including transfer branch, on-state branch and energy consumption branch,
Be characterized in that: the branch respectively forms the rectangular valve tower of layer series structure, and each rectangular valve tower is by sharing at least one
Side length composition has the high voltage DC breaker valve tower of regular square profile；
The rectangular valve tower of the transfer branch is connected in series by the subelement that modularized design forms by same layer, interlayer series connection connects
The mode of connecing forms rectangular valve tower；
Respective braced frame is connected between upper layer and lower layer subelement, between same level layer by pillar or suspension insulator
On, the height for shifting branch is identical with energy consumption branch valve tower, on-state branch valve tower, shifts the length and energy consumption branch valve tower of branch
It is identical；
The arrester subelement that the rectangular valve tower of the energy consumption branch is made of modularized design forms the side of parallel overlaying structure
Shape valve tower；
Respective braced frame is connected between upper layer and lower layer subelement, between same level layer by pillar or suspension insulator
On；
The height and length of energy consumption branch are identical with current limliting branch valve tower；
The branch adjacent two layers potential difference that consumes energy is identical with current limliting valve tower；
The rectangular valve tower of the transfer branch and the rectangular valve tower for the branch that consumes energy, form current limliting in such a way that layering is connected in parallel
The rectangular valve tower of branch；
Transfer branch, the length for the three rectangular valve towers of branch and current limliting branch that consume energy, height, layer are high, the number of plies is consistent, current limliting
The width of the rectangular valve tower of branch is the sum of the rectangular valve tower of transfer branch and energy consumption rectangular valve tower width of branch；The on-state branch routing
The n-layer switch tower of first floor on-state valve tower layer peace line position thereon forms n+1 layers of rectangular valve tower；
The n-layer of first floor peace line position thereon length size having the same, and total height and current limliting branch square valve
Tower is identical.
2. a kind of mixed type dc circuit breaker valve arrangement of square arrangement as described in claim 1, it is characterised in that: further include
The energy supply of at least two sets of independent high pressure powering devices, respectively current limliting branch valve tower and on-state branch valve tower；
The high pressure powering device be located at the rectangular tower of high voltage DC breaker in the rectangular drop shadow spread of ground level.
3. a kind of mixed type dc circuit breaker valve arrangement of square arrangement as described in claim 1, it is characterised in that: further include
The grading ring being set at the top of valve arrangement, the grading ring are used as the electricity between on-state branch valve tower and current limliting branch valve tower simultaneously
Circulation road.
4. a kind of mixed type dc circuit breaker valve arrangement of square arrangement as described in claim 1, it is characterised in that: composition is mixed
Connection bus, busbar between the rectangular valve tower of on-state branch of mould assembly dc circuit breaker valve tower entirety, the rectangular valve tower of current limliting branch
Inside valve tower, without departing from the square contour of breaker tower.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354949.5A CN107039955B (en) | 2017-05-19 | 2017-05-19 | A kind of mixed type dc circuit breaker valve arrangement of square arrangement |
| PCT/CN2018/090747 WO2018210352A1 (en) | 2017-05-19 | 2018-06-12 | Squarely arranged hybrid direct current circuit breaker valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354949.5A CN107039955B (en) | 2017-05-19 | 2017-05-19 | A kind of mixed type dc circuit breaker valve arrangement of square arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107039955A CN107039955A (en) | 2017-08-11 |
| CN107039955B true CN107039955B (en) | 2019-02-22 |
Family
ID=59539323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710354949.5A Active CN107039955B (en) | 2017-05-19 | 2017-05-19 | A kind of mixed type dc circuit breaker valve arrangement of square arrangement |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107039955B (en) |
| WO (1) | WO2018210352A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039955B (en) * | 2017-05-19 | 2019-02-22 | 南京南瑞继保电气有限公司 | A kind of mixed type dc circuit breaker valve arrangement of square arrangement |
| CN110854823A (en) * | 2018-08-20 | 2020-02-28 | 平高集团有限公司 | High-voltage direct-current circuit breaker |
| EP3614562A1 (en) * | 2018-08-24 | 2020-02-26 | General Electric Technology GmbH | Electronic valve apparatus |
| CN110601115A (en) * | 2019-09-20 | 2019-12-20 | 全球能源互联网研究院有限公司 | Direct current breaker valve tower |
| CN113991619A (en) * | 2021-10-12 | 2022-01-28 | 平高集团有限公司 | Current transfer circuit and current transfer device for direct current circuit breaker |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715916A (en) * | 2014-01-02 | 2014-04-09 | 常州博瑞电力自动化设备有限公司 | Flexible direct-current power transmission converter valve tower based on voltage source converters |
| CN104270016A (en) * | 2014-09-28 | 2015-01-07 | 国家电网公司 | Novel valve tower of thyristor converter valve |
| CN104767358A (en) * | 2014-01-03 | 2015-07-08 | 国家电网公司 | Modular multilevel voltage source converter valve hall |
| CN105024563A (en) * | 2015-07-30 | 2015-11-04 | 南京南瑞继保电气有限公司 | Direct current converter valve with linear valve layer arrangement |
| CN105262068A (en) * | 2015-10-14 | 2016-01-20 | 南京南瑞继保电气有限公司 | High-voltage DC breaker and control method thereof |
| CN105870860A (en) * | 2016-05-26 | 2016-08-17 | 许继电气股份有限公司 | Novel valve tower structure for high-voltage direct-current breaker |
| CN105931923A (en) * | 2016-05-26 | 2016-09-07 | 许继电气股份有限公司 | High-voltage DC circuit breaker |
| CN105958407A (en) * | 2016-05-26 | 2016-09-21 | 许继电气股份有限公司 | High voltage DC breaker valve tower structure |
| CN106558864A (en) * | 2015-09-25 | 2017-04-05 | 国网智能电网研究院 | A kind of hybrid Fast DC Circuit Breaker |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006046040A1 (en) * | 2006-09-28 | 2008-04-03 | Siemens Ag | Thyristor valve of a HVDC system |
| US9620939B2 (en) * | 2015-06-15 | 2017-04-11 | Mitsubishi Electric Power Products, Inc. | Hybrid circuit breakers |
| CN107039955B (en) * | 2017-05-19 | 2019-02-22 | 南京南瑞继保电气有限公司 | A kind of mixed type dc circuit breaker valve arrangement of square arrangement |
-
2017
- 2017-05-19 CN CN201710354949.5A patent/CN107039955B/en active Active
-
2018
- 2018-06-12 WO PCT/CN2018/090747 patent/WO2018210352A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715916A (en) * | 2014-01-02 | 2014-04-09 | 常州博瑞电力自动化设备有限公司 | Flexible direct-current power transmission converter valve tower based on voltage source converters |
| CN104767358A (en) * | 2014-01-03 | 2015-07-08 | 国家电网公司 | Modular multilevel voltage source converter valve hall |
| CN104270016A (en) * | 2014-09-28 | 2015-01-07 | 国家电网公司 | Novel valve tower of thyristor converter valve |
| CN105024563A (en) * | 2015-07-30 | 2015-11-04 | 南京南瑞继保电气有限公司 | Direct current converter valve with linear valve layer arrangement |
| CN106558864A (en) * | 2015-09-25 | 2017-04-05 | 国网智能电网研究院 | A kind of hybrid Fast DC Circuit Breaker |
| CN105262068A (en) * | 2015-10-14 | 2016-01-20 | 南京南瑞继保电气有限公司 | High-voltage DC breaker and control method thereof |
| CN105870860A (en) * | 2016-05-26 | 2016-08-17 | 许继电气股份有限公司 | Novel valve tower structure for high-voltage direct-current breaker |
| CN105931923A (en) * | 2016-05-26 | 2016-09-07 | 许继电气股份有限公司 | High-voltage DC circuit breaker |
| CN105958407A (en) * | 2016-05-26 | 2016-09-21 | 许继电气股份有限公司 | High voltage DC breaker valve tower structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107039955A (en) | 2017-08-11 |
| WO2018210352A1 (en) | 2018-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107039955B (en) | A kind of mixed type dc circuit breaker valve arrangement of square arrangement | |
| CN204586534U (en) | A kind of train traction converter plant | |
| CN102136730B (en) | Movable-type static synchronous compensator with compact structure design | |
| CN103460586B (en) | Modular converter cabinet system | |
| EP3477844B1 (en) | Reconfigurable mmc sub-module unit and control unit thereof | |
| CN105870877A (en) | Thyristor-based passive hybrid direct current circuit breaker and application method therefor | |
| CN104113221A (en) | Power conversion apparatus | |
| CN105849994B (en) | Breaker circuit | |
| CN104935182B (en) | Transformer for three level traction convertors | |
| CN107070249A (en) | A kind of electric power electric transformer applied to alternating current-direct current power distribution network | |
| CN102290793B (en) | Method for blocking a rectifier with decentralised energy storage devices | |
| CN107769239A (en) | A kind of new alternating electromotive force electronic transformer topological structure | |
| CN105471295B (en) | Voltage intermediate circuit current transformer in five point topological structures | |
| CN105634085A (en) | High-power charger for parallel double transformers | |
| CN104022630A (en) | Multifunctional hybrid traction power supply system and control method | |
| CN110445220B (en) | Charger module and circuit | |
| CN103715754A (en) | UPS and power supply system | |
| CN102904420A (en) | Multi-port current transformer | |
| CN103368410A (en) | Traction converter | |
| CN208955893U (en) | A kind of current transformer of more power supply systems | |
| Purgat et al. | Low-voltage dc system building blocks: Integrated power flow control and short circuit protection | |
| CN105161985B (en) | A kind of super capacitor cabinet | |
| CN103401437A (en) | IGBT converter chopping module | |
| CN102044879A (en) | Movable type static synchronous compensator (STATCOM) with modularization structure | |
| CN102148219B (en) | Power module of insulated gate bipolar transistor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |