CN108964250A - A kind of high voltage DC breaker and its power supply device - Google Patents
A kind of high voltage DC breaker and its power supply device Download PDFInfo
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- CN108964250A CN108964250A CN201710386062.4A CN201710386062A CN108964250A CN 108964250 A CN108964250 A CN 108964250A CN 201710386062 A CN201710386062 A CN 201710386062A CN 108964250 A CN108964250 A CN 108964250A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F2038/006—Adaptations of transformers or inductances for specific applications or functions matrix transformer consisting of several interconnected individual transformers working as a whole
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/067—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems using multi-primary transformers, e.g. transformer having one primary for each AC energy source and a secondary for the loads
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The present invention relates to a kind of high voltage DC breaker and its power supply device, wherein power supply device includes n cascade energy supply transformers, and energy supply transformers at different levels include a set of iron core, two sets of first windings being mutually redundant and two sets of secondary windings being mutually redundant；The energising power that two sets of first windings of first order energy supply transformer are respectively used to be mutually redundant with two couples；Two sets of secondary windings of energy supply transformers at different levels are provided with the output terminal of the energy supply of the correspondence valve layer in the valve tower for dc circuit breaker.The present invention connects by using multistage transformer, stage transformers are all made of a set of transformer core and two sets of independent first windings and secondary winding, two sets of secondary windings are as two sets of power supplys for carrying out redundant power supply to dc circuit breaker respective layer power module, under the premise of not increasing energy supply volume of transformer, occupied area, it realizes that the redundancy of power supply device is spare, improves the operational reliability of high voltage DC breaker.
Description
Technical field
The present invention relates to a kind of high voltage DC breaker and its power supply devices, belong to high voltage DC breaker technical field.
Background technique
High voltage DC breaker is the capital equipment for ensureing DC transmission system safe operation, with mechanical dc circuit breaker
Compared to quick action, usually in 3 millisecond internal cutting off fault currents.The quick acting of high voltage DC breaker is by electric power electricity
What the concatenated high-speed switch function of sub- device, that is, IGBT and high speed machine disconnecting switch quick acting were realized jointly.Due to high straightening
End voltage is very low when flowing breaker closing, so the method that high voltage DC breaker cannot achieve self-energizing provides power supply electricity
Source.But IGBT and high speed machine disconnecting switch reliably working need the power supply of high reliability.
Currently, the energy supply of high voltage DC breaker is all using single supply power supply mode.Notification number is CN103647537A
Chinese patent document disclose one kind take can energy feeding device, this take can energy feeding device use multi-stage cascade coupling low pressure transformation
Device is that the IGBT of plural serial stage powers, and insulation is still once powered between multistage transformer structure ensure that the grade between multiple IGBT
When power supply or transformer coil damage, high voltage DC breaker just loses the job power supply and stops working, this single electricity
Source power supply mode reliability is low, is unable to satisfy the high reliability request of high voltage DC breaker.
And when directly adopt two sets of independent energy supply transformers it is spare as redundancy when, then be unable to satisfy disconnected to high voltage direct current
Road device installs occupied area, the requirement of insulation distance；And high pressure energy supply transformer is increased with voltage class, manufacturing cost
Almost it is incremented by.When high voltage DC breaker layered arrangement, isolation energy supply transformer can not be solved flexibly as the confession of different interlayers
The insulating requirements of energy.
Summary of the invention
The object of the present invention is to provide a kind of high voltage DC breaker and its power supply devices, independent using two sets for solving
Energy supply transformer it is spare as redundancy when volume is big, the problem of taking up a large area.
In order to solve the above technical problems, the present invention provides a kind of power supply device of high voltage DC breaker, including n grade
The energy supply transformer of connection, energy supply transformers at different levels include a set of iron core, two sets of first windings being mutually redundant and are mutually redundant
Two sets of secondary windings；Two sets of first windings of first order energy supply transformer are respectively used to the energising power being mutually redundant with two
Coupling；Two sets of secondary windings of energy supply transformers at different levels are provided with the energy supply of the correspondence valve layer in the valve tower for dc circuit breaker
Output terminal.
Further, first order energy supply transformer by a cascade isolating transformers of m be respectively used to two it is superfluous each other
Remaining energising power coupling, isolating transformers at different levels include a set of iron core, two sets of first windings being mutually redundant and superfluous each other
Two sets of remaining secondary windings；Two sets of first windings of first order isolating transformer are respectively used to and two energy supply being mutually redundant electricity
Source is directly connected to；Two sets of secondary windings of afterbody isolating transformer are correspondingly connected with two sets of first order energy supply transformer once
Winding.
Further, the isolating transformer at different levels, energy supply transformer at different levels successively stack setting from bottom to top.
Further, the energy supply transformer or isolating transformer further include cylindrical insulating sleeve and insulating sleeve
The flange form cover board of both ends sealed set, it is insulation gas filled in the insulating sleeve；The insulating sleeve top is provided with height
Side leading-out terminal is pressed, the insulating sleeve bottom end is provided with low-voltage side outlet end.
Further, the flange form cover board is equipped with for the method with adjacent isolating transformer or energy supply transformer
The bolt hole of blue formula cover board fastening assembly.
Further, the insulating sleeve outer wall is equipped with parachute skirt or insulation tank.
Further, the grading ring for matching voltage grade is equipped on the flange form cover board.
The present invention also provides a kind of high voltage DC breakers, including valve tower, and for for the correspondence valve layer in valve tower
The power supply device of energy supply, the power supply device include n cascade energy supply transformers, and energy supply transformers at different levels include a set of iron
Core, two be mutually redundant set first winding and two sets of secondary windings being mutually redundant；The first order energizes two set one of transformer
The energising power that secondary winding is respectively used to be mutually redundant with two couples；Two sets of secondary windings of energy supply transformers at different levels are respectively provided with
The output terminal of correspondence valve layer energy supply in the valve tower of promising dc circuit breaker.
Further, first order energy supply transformer by a cascade isolating transformers of m be respectively used to two it is superfluous each other
Remaining energising power coupling, isolating transformers at different levels include a set of iron core, two sets of first windings being mutually redundant and superfluous each other
Two sets of remaining secondary windings；Two sets of first windings of first order isolating transformer are respectively used to and two energy supply being mutually redundant electricity
Source is directly connected to；Two sets of secondary windings of afterbody isolating transformer are correspondingly connected with two sets of first order energy supply transformer once
Winding.
Further, the isolating transformer at different levels, energy supply transformer at different levels successively stack setting from bottom to top.
Further, the energy supply transformer or isolating transformer further include cylindrical insulating sleeve and insulating sleeve
The flange form cover board of both ends sealed set, it is insulation gas filled in the insulating sleeve；The insulating sleeve top is provided with height
Side leading-out terminal is pressed, the insulating sleeve bottom end is provided with low-voltage side outlet end.
Further, the flange form cover board is equipped with for the method with adjacent isolating transformer or energy supply transformer
The bolt hole of blue formula cover board fastening assembly.
Further, the insulating sleeve outer wall is equipped with parachute skirt or insulation tank.
Further, the grading ring for matching voltage grade is equipped on the flange form cover board.
Further, the height of the insulating sleeve is identical as the valve layer height in the valve tower.
The beneficial effects of the present invention are:
Power supply device is constituted using multistage energy supply transformer series, and energy supply transformers at different levels are all made of a set of transformer core
It is used as with two sets of secondary windings of the first winding and secondary winding of two sets of independent rated capacities, energy supply transformers at different levels to straight
Two sets of power supplys that the correspondence valve layer in the valve tower of breaker carries out redundant power supply are flowed, energy supply volume of transformer, land occupation are not being increased
Under the premise of area, realizes that the redundancy of high voltage DC breaker power supply is spare, improve the operation of high voltage DC breaker
Reliability；Due to using multi-stage cascade structure, the promotion of energy supply transformer voltage grade is realized, can satisfy different voltages etc.
The energy supply demand of the high voltage DC breaker of grade.
Further, by the way that isolating transformer is arranged, the voltage insulation requirement of stage transformers is reduced, is effectively ensured
Power supply safety.
Detailed description of the invention
Fig. 1 is the schematic illustration of power supply device；
Fig. 2 is the structure and scheme of installation of power supply device；
Fig. 3 is the schematic illustration of the power supply device of single-stage energy supply transformer；
Fig. 4 is the structural schematic diagram of the power supply device of single-stage energy supply transformer；
Fig. 5 is the wiring schematic diagram of the power supply device of two-stage energy supply transformer.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing.
The embodiment of the power supply device of high voltage DC breaker:
Power supply device provided by the invention includes n cascade energy supply transformers and m cascade isolating transformers, n
It can be set according to the actual situation with m, such as n=3 can be set, m=3.Energy supply transformer for every level-one and every
From transformer, be all made of a set of transformer core T1, two sets of independent rated capacities primary (low pressure) winding W1 and W2 and
Secondary (high pressure) winding W3 and W4 corresponding with two sets of first windings W1 and W2, two groups of independent side windings and secondary winding
Realize that redundancy is spare.Wherein, the number of winding turns of first side winding W1 and W2 is identical, and design rated power is also identical, is energy supply
The total power of system；The number of winding turns of secondary side winding W3 and W4 are identical with primary side, i.e., no-load voltage ratio is 1:1, secondary winding
Design be specified transmission power.So there are three kinds of operating conditions for practical every group of independent winding: a kind of operating condition be according to
100% rated power operation；A kind of operating condition is to be ready to put into operation in hot stand-by duty；A kind of last operating condition is two
Set independent winding is run simultaneously according to 50% rated power.In addition, energy supply transformer and isolating transformer first and second winding with
SF6 gas is all made of between transformer shell to insulate.
For first order isolating transformer, first set first winding W1 for connecting power supply 1, second set once around
Group W2 is for connecting power supply 2.For afterbody isolating transformer, two sets of secondary windings are correspondingly connected with first order energy supply
Two sets of first windings of transformer.For energy supply transformers at different levels, two sets of secondary windings are equipped with as dc circuit breaker
The output terminal of correspondence valve layer energy supply in valve tower, carries out redundancy confession for the correspondence valve layer in the valve tower to dc circuit breaker
Electricity.
Under normal circumstances, duplex feeding route is run parallel, two sets of independent first windings of every transformer and two sets
Independent secondary winding is run according to 50% rated power simultaneously, when the power supply or the supply lines of any road power supply line
In road when one group of winding failure of transformer, another way power supply line can then be provided required for high voltage DC breaker all
Power plays the spare function of its redundancy, provides the energy supply of high reliability for high voltage DC breaker normal operation.
The first side winding of energy supply transformer provided by the present invention and the high-voltage isulation mode of secondary side winding are to use
The redundancy transformer serial cascade mode of multistage low-voltage needs the insulation of transformer body first side winding and secondary side winding
It asks segmentation to connect, solves the problems, such as that the manufacturing cost height of high-tension transformer and insulation technology are difficult.
As shown in Figure 1, the power supply device of 500kV high voltage DC breaker include 3 sets of cascade energy supply transformer T2, T3 and
T4 and 3 set of cascade isolating transformer T1-1, T1-2 and T1-3.By by the isolating transformer of 3 170kV classes of insulation
The high-tension transformer T1 that can be formed by a 500kV pressure resistance is connected in series in T1-1, T1-2 and T1-3.Isolating transformer T1-1,
The primary side input voltage of T1-2 and T1-3 is the low of the 380V that power frequency is 50Hz, 60Hz or medium-high frequency or other voltage class
The output voltage of voltage, secondary side is identical as primary side, so two of isolating transformer T1-1, T1-2 and T1-3 primary side are mutual
Insulating requirements between the winding W1 and W2 of redundancy are easily achieved, but exhausted between first side winding and secondary side winding
Edge voltage is high, class of insulation 170kV.The dc circuit breaker of the Zhoushan engineering to have put into operation is the energy supply transformer of 200kV, so
Existing Transformer Manufacturing Technology is readily applied to the manufacture of the isolating transformer of 170kV voltage class.Since every set is isolated
Two insulating requirements between first side winding, secondary side winding of transformer are low, this isolation transformation with redundancy winding
The size of the isolating transformer of the size of device and irredundant winding is essentially identical.
The power supply device of the high voltage DC breaker of complete set in the present invention takes multistage transformer as shown in Figure 2
Cascade structure and mounting means, isolating transformer at different levels, energy supply transformer at different levels successively stack setting from bottom to top.Due to high pressure
The power supply device of dc circuit breaker is constituted using the cascade mode of multi-stage isolation transformer series, by taking 500kV voltage class as an example,
It is cascaded in series for using the isolating transformer of 3 170kV, is very easy to meet dc circuit breaker in the structure design of transformer and answer
The requirement of high-voltage isulation for 500kV voltage class, i.e. transformer appearance requirement satisfaction climb air insulation size and insulation
Away from technical requirements.
Using design method of the invention, the series wiring of each transformer is short in high voltage DC breaker power supply device, and
And without electrion.The external structure of energy supply transformers or isolating transformer at different levels is all made of a cylindrical insulating sleeve,
Filled with SF in insulating sleeve6Insulating gas, wherein the height of insulating sleeve will meet to the minimum air distance of insulation voltage
It is required that.Transformer with tube form is overlayed on another transformer, by being equipped on insulating sleeve outer wall
Parachute skirt or insulation tank increase the external insulation creep distance of transformer, and the both ends of insulating sleeve are made using metal flange formula cover board
For the sealing section of transformer, pass through the bolt on transformer barrier tube upper flange formula cover board between two adjacent transformers
Hole is attached and fastens, and the grading ring of matching voltage grade is installed on flange form cover board.The mounting means becomes energy supply
Grade tie between depressor is simple and convenient, has not only met the insulating requirements of high-tension transformer, but also reduces occupied area.Energy supply dress
The low-pressure side winding i.e. terminals of first side winding of each transformer can be placed on close to the position of bottom metal flange in setting, and
High-pressure side winding, that is, secondary side winding terminals can be placed on close to the position of transformer top metal flange.It is supplied in the present invention
There are two main functions for the metal flange of energy transformer and isolating transformer, first is that facilitating handle when two transformers stack installation
Upper and lower two transformers are reliably fixed together by the through-hole of ring flange.Second is that can be transformer by metal flange
The heat generated when work is scattered in air, guarantees transformer reliability service.
Particularly, when the power supply device of high voltage DC breaker provided by the present invention is that single-stage energizes transformer,
Schematic illustration is as shown in Figure 3.The first winding W1 connection energising power 1 of the energy supply transformer, another group of first winding W2 connect
Energising power 2 is connect, secondary winding W3 and W4 are equipped with for the output for being electrically connected dc circuit breaker respective layer power module
Terminal is powered for serving as the redundant power of high voltage DC breaker with the corresponding valve layer in the valve tower of high voltage DC breaker
Connection.Fig. 4 gives the structural schematic diagram when power supply device of high voltage DC breaker is single-stage energy supply transformer, transformer two
The terminals of a primary side redundancy winding are positioned close to the bottom position of transformer flange form end cap, two secondary sides of transformer
The terminals of redundancy winding are positioned close to the top position of transformer flange form end cap.Similar, Fig. 5 gives high voltage direct current
The power supply device of breaker is structural schematic diagram when two-stage energizes transformer, and the wiring that two-stage energizes between transformer is very simple
It is clean, it is particularly suitable for high-tension transformer.
Power supply device with redundant power supply function of the invention can be widely applied to the direct current of different voltage class
Breaker.For the dc circuit breaker of 200kV and its following voltage class, can be directly used shown in Fig. 3 with single-stage confession
The power supply device power supply of energy transformer.500kV high voltage DC breaker mostly uses Multi-layer design structure, i.e. dc circuit breaker packet
The valve tower being made of each valve layer is included, such as the valve layer number of valve tower can be designed as 4 layers or 5 layers, is adopted as valve layer layering and supplies
The scheme of electricity reduces the design difficulty of high voltage DC breaker power supply device.Assuming that the valve layer of the valve tower of high voltage DC breaker
Number is n-layer, and the quantity of the energy supply transformer needed is n-1.For example, the high voltage DC breaker for being 4 layers for valve layer number, required
The quantity of energy supply transformer be 4-1=3；The high voltage DC breaker for being 5 layers for valve layer number, required energy supply, which is isolated, to be become
The quantity of depressor is 4.The power supply device of the high voltage DC breaker of 4 layers of structure of a 500kV as shown in Fig. 1.For
The height design of energy transformer is identical as height between the valve in the valve tower of high voltage DC breaker, facilitates energy supply transformer and direct current
Breaker for electrical connection.
The power supply device of high voltage DC breaker of the invention has technological merit below and use value:
1) it under the premise of not increasing volume of transformer, occupied area, realizes that the redundancy of power supply device is spare, improves height
Press the operational reliability of dc circuit breaker.
2) do not increase volume of transformer, under conditions of design difficulty and manufacturing expense, realize the voltage etc. of transformer
The promotion of grade, can satisfy the energy supply demand of the high voltage DC breaker of different voltages grade.
3) it by using the mode of the layering energy supply of redundancy energy supply Circuit Fault on Secondary Transformer (high pressure), realizes and high voltage direct current
The insulating Design demand that matches of breaker actual installation structure.
4) due to the technical advantage of quick-speed turning on-off DC current, high voltage DC breaker will be widely used in high pressure and extra-high voltage
DC engineering, so that power supply device of the invention will have very high application value.
The embodiment of high voltage DC breaker:
The present invention also provides a kind of high voltage DC breaker, which includes valve tower, and for for
The power supply device of correspondence valve layer energy supply in valve tower.Wherein, a high voltage DC breaker valve tower be by M power module layer by layer
Vertical stacking forms, and each power module is made of N number of IGBT submodule, if the voltage of single IGBT submodule is u, every 2
Power module constitutes a valve layer, and the number of valve layer is L, then the potential difference of each valve layer is represented by 2Nu, the electricity of a valve tower
Potential difference is 2LNu=MNu.Therefore, a dc circuit breaker can be one group of dc circuit breaker valve according to the difference of voltage class
Tower is also possible to X valve tower and forms a high voltage DC breaker (its voltage is 2XLNu).Power supply device is dc circuit breaker
The power module corresponded in valve layer in valve tower is powered, since the power supply device is in the embodiment of above-mentioned power supply device
It is described in detail, details are not described herein again.
Specific embodiment of the present invention is presented above, but the present invention is not limited to described embodiment.
Under the thinking that the present invention provides, to the skill in above-described embodiment by the way of being readily apparent that those skilled in the art
Art means are converted, are replaced, are modified, and play the role of with the present invention in relevant art means it is essentially identical, realize
Goal of the invention it is also essentially identical, the technical solution formed in this way is to be finely adjusted to be formed to above-described embodiment, this technology
Scheme is still fallen in protection scope of the present invention.
Claims (10)
1. a kind of power supply device of high voltage DC breaker, including n cascade energy supply transformers, which is characterized in that confessions at different levels
Can transformer include a set of iron core, two sets of first windings being mutually redundant and two sets of secondary windings being mutually redundant；The first order
The energising power that two sets of first windings of energy supply transformer are respectively used to be mutually redundant with two couples；Energy supply transformers at different levels
Two sets of secondary windings are provided with the output terminal of the energy supply of the correspondence valve layer in the valve tower for dc circuit breaker.
2. the power supply device of high voltage DC breaker according to claim 1, which is characterized in that the first order energizes transformer
It is coupled by the energising power that m cascade isolating transformers are respectively used to be mutually redundant with two, isolating transformer packets at different levels
Include a set of iron core, two sets of first windings being mutually redundant and two sets of secondary windings being mutually redundant；First order isolating transformer
Two sets of first windings energising power for being respectively used to be mutually redundant with two be directly connected to；The two of afterbody isolating transformer
Set secondary winding is correspondingly connected with two sets of first windings of first order energy supply transformer.
3. the power supply device of high voltage DC breaker according to claim 2, which is characterized in that the isolation transformations at different levels
Device, energy supply transformer at different levels successively stack setting from bottom to top.
4. the power supply device of high voltage DC breaker according to claim 3, which is characterized in that the energy supply transformer or
Isolating transformer further includes the flange form cover board of cylindrical insulating sleeve and insulating sleeve both ends sealed set, the insulation
It is insulation gas filled in sleeve；The insulating sleeve top is provided with high-voltage side outlet wire end, and the insulating sleeve bottom end is provided with
Low-voltage side outlet end.
5. the power supply device of high voltage DC breaker according to claim 4, which is characterized in that on the flange form cover board
Equipped with for the bolt hole with adjacent isolating transformer or the flange form cover board fastening assembly for energizing transformer.
6. a kind of high voltage DC breaker, including valve tower, and for the power supply device for the correspondence valve layer energy supply in valve tower, institute
Stating power supply device includes n cascade energy supply transformers, which is characterized in that energy supply transformers at different levels include a set of iron core, each other
Two sets of first windings of redundancy and two sets of secondary windings being mutually redundant；The first order energizes two sets of first windings point of transformer
The energising power that Yong Yu not be mutually redundant with two couples；Two sets of secondary windings of energy supply transformers at different levels are provided with as direct current
The output terminal of correspondence valve layer energy supply in the valve tower of breaker.
7. high voltage DC breaker according to claim 6, which is characterized in that the first order energizes transformer and passes through m grade
The energising power that the isolating transformer of connection is respectively used to be mutually redundant with two couples, and isolating transformers at different levels include a set of iron
Core, two be mutually redundant set first winding and two sets of secondary windings being mutually redundant；Two set one of first order isolating transformer
The energising power that secondary winding is respectively used to be mutually redundant with two is directly connected to；Two sets of afterbody isolating transformer it is secondary around
Group is correspondingly connected with two sets of first windings of first order energy supply transformer.
8. high voltage DC breaker according to claim 7, which is characterized in that the isolating transformer at different levels, confession at different levels
Energy transformer successively stacks setting from bottom to top.
9. high voltage DC breaker according to claim 8, which is characterized in that the energy supply transformer or isolating transformer
Further include the flange form cover board of cylindrical insulating sleeve and insulating sleeve both ends sealed set, in the insulating sleeve filled with
Insulating gas；The insulating sleeve top is provided with high-voltage side outlet wire end, and the insulating sleeve bottom end is provided with low-voltage side outlet
End.
10. high voltage DC breaker according to claim 9, which is characterized in that the height of the insulating sleeve with it is described
Valve layer height in valve tower is identical.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710386062.4A CN108964250B (en) | 2017-05-26 | 2017-05-26 | High-voltage direct-current circuit breaker and energy supply device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710386062.4A CN108964250B (en) | 2017-05-26 | 2017-05-26 | High-voltage direct-current circuit breaker and energy supply device thereof |
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| CN105811569A (en) * | 2014-12-29 | 2016-07-27 | 国家电网公司 | Hybrid energy supply system for high-voltage direct current breaker |
| CN106487043A (en) * | 2015-08-26 | 2017-03-08 | 国网智能电网研究院 | A kind of hybrid integrated high-level energy supplying system for high voltage DC breaker |
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|---|---|---|---|---|
| CN102543410A (en) * | 2012-02-16 | 2012-07-04 | 广东电网公司佛山供电局 | Cascade high-potential energy supply device |
| US20150070802A1 (en) * | 2013-09-11 | 2015-03-12 | General Electric Company | Method and system for architecture, control, and protection systems of modular stacked direct current subsea power system |
| CN103928913A (en) * | 2014-03-31 | 2014-07-16 | 华中科技大学 | High-voltage direct-current circuit breaker based on rapid repulsion force mechanism and insulating transformer |
| CN105811569A (en) * | 2014-12-29 | 2016-07-27 | 国家电网公司 | Hybrid energy supply system for high-voltage direct current breaker |
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