CN108282121A - Switching method and switching circuit, the electrical equipment of switching circuit - Google Patents
Switching method and switching circuit, the electrical equipment of switching circuit Download PDFInfo
- Publication number
- CN108282121A CN108282121A CN201810059597.5A CN201810059597A CN108282121A CN 108282121 A CN108282121 A CN 108282121A CN 201810059597 A CN201810059597 A CN 201810059597A CN 108282121 A CN108282121 A CN 108282121A
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- switching
- switch
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- magnetic
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
- H02P13/06—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changing; by rearranging interconnections of windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention discloses a kind of switching method of switching circuit and switching circuit, electrical equipments.Wherein, this method includes：The open and-shut mode of at least one switching switch in detection switch circuit, wherein switching, which switchs, includes：Permanent-magnetic switching；The different switching branches at least one switching branches in switching circuit are switched over according to open and-shut mode, wherein switching branches include at least one no field switch.The present invention solve in the related technology permanent-magnetic switching mostly with permanent-magnetic switching break down caused by inspection switch when transformer need have a power failure the technical issues of.
Description
Technical field
The present invention relates to field of switches, switching method and switching circuit in particular to a kind of switching circuit, electrical
Equipment.
Background technology
Currently, along with the promotion that power supply reliability requires, load ratio bridging switch is by more and more adjustable transformers, tune
Hold transformer to use.The load ratio bridging switch that early stage power transformer is matched mostly uses high speed resistance to switch, and leans on copper tungsten arc
Contact carries out load transfer.This kind of tap switch switching is frequent, and arc contact scaling loss is accordingly than more serious, oily carbonization and pollution
Speed increases the workload of daily maintenance and periodic inspection to power supply department.
In recent years along with the continuous maturation of permanent-magnetic switching technology, permanent-magnetic switching technology is more and more common by vast switch
Manufacturing enterprise is adopted, and the development trend of modern switching technique is become.However, the disadvantage of permanent-magnetic switching is the position of the switch
Few, only normally opened, normally closed two contacts need to configure more set permanent magnet mechanisms and true if wanting to realize multi-stage pressure regulating or capacity transfer function
Blank pipe.
In conclusion permanent-magnetic switching in the related technology has the disadvantage that：
When 1, realizing multi-stage pressure regulating, capacity transfer function, multiple permanent magnetic vacuum switchs, permanent magnet mechanism and vacuum tube quantity mistake are needed
In huge.
2, in circuit, once permanent-magnetic switching breaks down, transformer is by nothing for series connection when permanent magnetic vacuum switch works normally
Method works normally, and needs to stop transport when serious, and when inspection switch, transformer must have a power failure.
Transformer when inspection switch caused by mostly breaking down with permanent-magnetic switching for above-mentioned permanent-magnetic switching in the related technology
The problem of needing to have a power failure, currently no effective solution has been proposed.
Invention content
An embodiment of the present invention provides a kind of switching method of switching circuit and switching circuit, electrical equipments, at least to solve
Transformer needs the technology having a power failure when inspection switch caused by certainly permanent-magnetic switching mostly breaks down with permanent-magnetic switching in the related technology
Problem.
One side according to the ... of the embodiment of the present invention provides a kind of switching circuit, including：At least one switching branches,
Switching branches include at least one no field switch：At least one switching switch, connect at least one switching branches, is used for pair
Different switching branches at least one switching branches switch over, wherein switching, which switchs, includes：Permanent-magnetic switching.
Optionally, at least one switching switch includes：First permanent-magnetic switching and the second permanent-magnetic switching；First permanent-magnetic switching and
Second permanent-magnetic switching is in parallel, also, the first permanent-magnetic switching and the second permanent-magnetic switching pass through cutting between open and close state
It changes, the different switching branches at least one switching branches is switched over.
Optionally, the second permanent-magnetic switching includes：Transition resistance.
Optionally, at least one no field switch is driven by an operating mechanism.
Optionally, at least one no field switch includes：Discoid switch.
Optionally, the quantity of at least one switching switch is two.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of switching method of switching circuit, including：Detection is opened
The open and-shut mode of at least one switching switch in powered-down road, wherein switching, which switchs, includes：Permanent-magnetic switching；According to open and-shut mode pair
Different switching branches in switching circuit at least one switching branches switch over, wherein switching branches include at least one
Without field switch.
Optionally, it is provided with transition resistance in the part switching switch at least one switching switch.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of electrical equipment, including：The switch of any of the above-described
Circuit.
Optionally, electrical equipment includes：Transformer.
In embodiments of the present invention, pass through the open and-shut mode of at least one switching switch in detection switch circuit, wherein cut
Changing switch includes：Permanent-magnetic switching；According to open and-shut mode to the different switching branches at least one switching branches in switching circuit
It switches over, wherein switching branches include at least one no field switch, have reached reduction permanent magnetic vacuum switch quantity, have avoided
The purpose that its failure is influenced caused by entire transformer to realize the usage quantity for reducing permanent-magnetic switching, and is realized
Multi-stage pressure regulating or capacity transfer function, save the technique effect of equipment volume and cost, and then solve permanent-magnetic switching in the related technology
The technical issues of transformer needs to have a power failure when inspection switch caused by mostly breaking down with permanent-magnetic switching.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of structure chart of switching circuit according to the ... of the embodiment of the present invention；
Fig. 2 is the structure chart of switching switch according to the ... of the embodiment of the present invention；
Fig. 3 is a kind of circuit diagram of optionally handoff procedure original state according to the ... of the embodiment of the present invention；
Fig. 4 is a kind of circuit diagram one of optionally handoff procedure according to the ... of the embodiment of the present invention；
Fig. 5 is a kind of circuit diagram two of optionally handoff procedure according to the ... of the embodiment of the present invention；
Fig. 6 is a kind of circuit diagram three of optionally handoff procedure according to the ... of the embodiment of the present invention；
Fig. 7 is a kind of circuit diagram four of optionally handoff procedure according to the ... of the embodiment of the present invention；
Fig. 8 is the circuit diagram that a kind of optionally handoff procedure according to the ... of the embodiment of the present invention terminates state；
Fig. 9 is a kind of flow chart of the switching method of switching circuit according to the ... of the embodiment of the present invention.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
It includes to be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment to cover non-exclusive
Those of clearly list step or unit, but may include not listing clearly or for these processes, method, product
Or the other steps or unit that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of switching circuit embodiment is provided, it should be noted that in the flow chart of attached drawing
The step of showing can execute in the computer system of such as a group of computer-executable instructions, although also, in flow chart
In show logical order, but in some cases, can be to execute shown or described step different from sequence herein
Suddenly.
Fig. 1 is a kind of structure chart of switching circuit according to the ... of the embodiment of the present invention, as shown in Figure 1, the switching circuit includes：
At least one switching branches 10, wherein the switching branches 10 include at least one no field switch C.
At least one switching switch 12, connect at least one switching branches 10, for at least one switching branches 10
In different switching branches switch over, wherein switching switch 12 include：Permanent-magnetic switching.
Optionally, Fig. 2 is the structure chart of switching switch according to the ... of the embodiment of the present invention, as shown in Fig. 2, switching switch 12 wraps
It includes：First permanent-magnetic switching 120 and the second permanent-magnetic switching 122；Wherein, the first permanent-magnetic switching 120 and the second permanent-magnetic switching 122 are mutual
Parallel connection, also, the first permanent-magnetic switching 120 and the second permanent-magnetic switching 122 be by the switching between open and close state, to extremely
Different switching branches in few switching branches 10 switch over.
Optionally, the second permanent-magnetic switching 122 includes：Transition resistance 1220.
Optionally, at least one no field switch includes：Discoid switch.
Optionally, the quantity of at least one switching switch 12 is two.
The embodiment of the present application provides a kind of specific switching circuit, Fig. 3 be it is according to the ... of the embodiment of the present invention it is a kind of optionally
The circuit diagram of handoff procedure original state, as shown in Figure 3：
Disk is no excitation selecting switch in Fig. 3, and switching switch 12 (A) and switching switch 12 (B) are permanent magnetic vacuum switch
Structure and permanent-magnetic switching structure containing transition resistance.
In handoff procedure, is realized by equipotential operation or open circuit operation and converted without arc circuit without field switch.
The general thought of switching is：
1, by switch switch 12 (A) instead of and built without field switch and to form the second branch of conducting, and by normality work
Make branch to disconnect without field switch；
2, the Targeted Tributary completed by the transition resistance branch conducting plan switching switched in switch 12 (B), formed
Cross status circuit；
3, switching switch 12 (A), and the transition resistance branch in short circuit switching switch 12 (B) are disconnected；
4, restore Targeted Tributary without field switch, and disconnect switching switch 12 (B), complete switching.
It can respectively be driven by the same operating mechanism without field switch, by selective clutch structure, chosen
Which is acted without field switch at bottom.Wherein the operating mechanism includes but not limited to electronic driver, which can
To be realized using device in the related technology, such as the operating mechanism includes：Motor, selective clutch, wherein motor band
Dynamic selectivity clutch structure, to drive each no field switch.For example, CNC-DS12 type electric disconnector operating mechanisms.
In the embodiment of the present application, Fig. 3-Fig. 8 is the schematic diagram of the optionally circuit of switching circuit handoff procedure, and pressure regulation is cut
Changing situation has following several situations, but pressure regulation switch instances are not limited to following several situations, are switched to voltage under parallel connection
Example, illustrates, handover procedures as below is similar with the above process, no longer shows procedure chart in conjunction with Fig. 3-Fig. 8：
1, under parallel connection, rated voltage switches to -5% voltage, and original state is large capacity state in parallel, specified electricity
Press gear, original state as shown in Figure 3.
Pressure regulation switching process be：First, equipotential operates：As shown in figure 4, by Operation switch C6, C9, switching switch 12
(A), the second conducting branches are built, secondly equipotential operation：As shown in figure 5, disconnecting switch C5, C8, switching switch C7, C10 are cut
To 3 gears.Then, as shown in fig. 6, being closed switching switch 12 (B) (containing transition resistance), transition circuit is formed.Then, such as Fig. 7
It is shown, switching switch 12 (A) is disconnected, short circuit switches transition resistance in switch 12 (B), completes voltage and adjusts.Finally, such as Fig. 8 institutes
Show, operated by equipotential, switching C5, C8 to 3 gears disconnects switching switch 12 (B), completes this pressure regulation operation.
2, in parallel to turn series connection (large capacity turns low capacity), original state is large capacity state in parallel, works in -5% electricity
Press gear.
Pressure regulation switching process be：Switch C6 first is switched to 3 gears, is closed switching switch 12 (A).Secondly equipotential behaviour
Make：Switch C5 switches to 4 gears, disconnects.It is then turned off switching switch 12 (A), (it is special that this step needs excision left side parallel winding
Switching overvoltage is eliminated in design).Then switch C9 switches to 3 gears, is closed switching switch 12 (A), and structure replaces 8 switches
The second branch；Open circuit operation, closure switch C4 to 2 gears, switch C7 to 3 gears.Then equipotential operates：Disconnect switch C2 extremely
4 gears.Then it is closed switching switch 12 (B) (containing transition resistance), forms capacity transfer transition circuit, low-pressure side links with high-pressure side.
It is then turned off switching switch 12 (A), short circuit switching switch 12 (B) interior transition resistance forms series connection capacity circuit state.Low-pressure side
It links with high-pressure side.Then equipotential operates：Closure switch C5 is to 3 gears.Switching switch 12 (B) is finally disconnected, capacity transfer is completed
Switching.
3, series connection pressure regulation (I sections of pressure regulation of series connection), original state are series connection low capacity state, -5% voltage gear.
Pressure regulation switching process be：First by C9 switchings to 3 gears, switch C2 is closed to 2 gears, is closed switching and opens
Close 12 (A).Next, disconnection switch C8 to 2-3 middle gears, open circuit operation switch C10 to 2 grades.Then it is closed switching switch 12 (B)
(containing transition resistance), form pressure regulation transition circuit.It is then turned off switch A, short circuit switches transition resistance in switch 12 (B).Switching
To -2.5% voltage status.Then equipotential operates：Switch C8 is to 2 gears.Finally disconnect switching switch 12 (B), this pressure regulation
Operation is completed.
4, series connection pressure regulation (the disconnected pressure regulation of series connection II), original state is series connection low capacity, -2.5% voltage gear.
Pressure regulation switching process be：Equipotential operates first：C6 switches are switched to 3 gears, are closed switching switch 12 (A),
Switch C7 is switched to 2 grades.Secondly equipotential operation：Switch C5 is disconnected to 2-3 middle gears.Then switching switch 12 (B) is closed (to contain
Cross resistance), form pressure regulation transition circuit.It is then turned off switching switch 12 (A), short circuit switching switch 12 (B) interior transition resistance, shape
At rated voltage circuit.Then equipotential operates：C5 switches are switched to 2 gears.Last equipotential operation：Disconnect switching switch 12
(B), this pressure regulation is completed.
5, series connection turns (low capacity turns large capacity) in parallel, and original state is series connection low capacity, rated voltage gear.
Pressure regulation switching process be：Equipotential operates first：Switch C6 is switched into 2 gears, is closed switching switch 12
(A).Secondly equipotential operation：Disconnect switch C5, open circuit operation switch C10 to 2 gears.Then switching switch 12 (B) is closed (to contain
Transition resistance), form capacity transfer transition circuit, low-pressure side linkage.It is then turned off switching switch 12 (A), short circuit switching switch 12 (B)
Interior transition resistance, open circuit operation switch C4 to 4 gears form large capacity circuit state.Low-pressure side links with high-pressure side.Then it opens
Dataway operation switch C3 is to 2 gears.Then it is closed switching switch 12 (A), forms large capacity circuit state in parallel.Low-pressure side and high pressure
It links side.Then equipotential operates：Switch C5, C8 are to 2 gears, switch C2 to 2 gears.Last equipotential operation：Disconnect switching
Switch 12 (A), switching switch 12 (B) complete capacity transfer operation.
When multi-stage pressure regulating switches, circuit is built using no field switch, using permanent magnetic vacuum switch switching circuit, with
In the case that permanent magnet vacuum switches switch performance, a number is organized in quantity to the fixation for reducing permanent magnetic vacuum switch.
Embodiment 2
According to embodiments of the present invention, a kind of switching method embodiment of switching circuit is provided, Fig. 9 is according to of the invention real
The flow chart for applying a kind of switching method of switching circuit of example, as shown in figure 9, this method includes：
Step S902, the open and-shut mode of at least one switching switch in detection switch circuit, wherein switching switch includes：
Permanent-magnetic switching；
Optionally, it is provided with transition resistance in the part switching switch at least one switching switch.
Step S904 carries out the different switching branches at least one switching branches in switching circuit according to open and-shut mode
Switching, wherein switching branches include at least one no field switch.
It should be noted that the preferred embodiment of the present embodiment may refer to the associated description in embodiment 1, herein not
It repeats again.
Through the above steps, reduce permanent magnetic vacuum switch quantity, when normal work, permanent-magnetic switching is not in electric loop
In, it is put into when only switching, reduces its working time, avoid its failure influences caused by entire transformer, and will not
Interruption maintenance permanent magnetic vacuum switch is possibly realized.
Embodiment 3
According to embodiments of the present invention, a kind of electrical equipment embodiment is provided, which includes：Above-mentioned switch electricity
Road.
Optionally, switching circuit is the switching circuit in embodiment 1.
Optionally, electrical equipment includes：Transformer.
It should be noted that the preferred embodiment of the present embodiment may refer to the associated description in embodiment 1, herein not
It repeats again.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
In the above embodiment of the present invention, all emphasizes particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, for example, the unit division, Ke Yiwei
A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
It connects, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
On unit.Some or all of unit therein can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of switching circuit, which is characterized in that including：
At least one switching branches, the switching branches include at least one no field switch：
At least one switching switch, connect at least one switching branches, for at least one switching branches
Different switching branches switch over, wherein switching switch includes：Permanent-magnetic switching.
2. switching circuit according to claim 1, which is characterized in that at least one switching, which switchs, includes：
First permanent-magnetic switching and the second permanent-magnetic switching；
First permanent-magnetic switching and second permanent-magnetic switching are in parallel, also, first permanent-magnetic switching and the second permanent magnetism are opened
It closes through the switching between open and close state, the different switching branches at least one switching branches is cut
It changes.
3. switching circuit according to claim 2, which is characterized in that second permanent-magnetic switching includes：Transition resistance.
4. switching circuit according to claim 1, which is characterized in that at least one no field switch is grasped by one
Make mechanism driving.
5. switching circuit according to claim 1, which is characterized in that at least one no field switch includes：It is discoid to open
It closes.
6. switching circuit as claimed in any of claims 1 to 5, which is characterized in that at least one switching is opened
The quantity of pass is two.
7. a kind of switching method of switching circuit, which is characterized in that including：
The open and-shut mode of at least one switching switch in detection switch circuit, wherein the switching, which switchs, includes：Permanent-magnetic switching；
The different switching branches at least one switching branches in the switching circuit are switched over according to the open and-shut mode,
Wherein, the switching branches include at least one no field switch.
8. the method according to the description of claim 7 is characterized in that the part switching switch at least one switching switch
In be provided with transition resistance.
9. a kind of electrical equipment, which is characterized in that including：Switching circuit described in any one of claim 1 to 6.
10. electrical equipment according to claim 9, which is characterized in that the electrical equipment includes：Transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059597.5A CN108282121A (en) | 2018-01-22 | 2018-01-22 | Switching method and switching circuit, the electrical equipment of switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059597.5A CN108282121A (en) | 2018-01-22 | 2018-01-22 | Switching method and switching circuit, the electrical equipment of switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108282121A true CN108282121A (en) | 2018-07-13 |
Family
ID=62804484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810059597.5A Pending CN108282121A (en) | 2018-01-22 | 2018-01-22 | Switching method and switching circuit, the electrical equipment of switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108282121A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202076106U (en) * | 2011-05-31 | 2011-12-14 | 北京博瑞莱智能科技有限公司 | Automatic voltage-regulating transformer |
| CN102360851A (en) * | 2011-09-08 | 2012-02-22 | 北京博瑞莱智能科技有限公司 | Combined permanent-magnetic mechanism voltage/capacity adjusting switch |
| CN104465140A (en) * | 2014-12-29 | 2015-03-25 | 刁俊起 | Permanent magnet drive on-load tap changer |
| CN104699151A (en) * | 2015-03-27 | 2015-06-10 | 国家电网公司 | Voltage regulator, voltage regulating system and voltage regulating method |
| CN105513772A (en) * | 2016-01-29 | 2016-04-20 | 山东电工电气集团智能电气有限公司 | On-load capacity-regulating voltage-regulating power distribution transformer |
| CN105719817A (en) * | 2016-03-03 | 2016-06-29 | 北京平开智能电气有限公司 | Permanent magnetic vacuum on-load voltage regulation switch, transformer and on-load voltage regulation method |
| CN105826062A (en) * | 2016-05-26 | 2016-08-03 | 北京博瑞莱智能科技集团有限公司 | On-load capacitance-adjusting and voltage-adjusting switch device and system |
| CN205609368U (en) * | 2016-01-19 | 2016-09-28 | 浙江宝威电气有限公司 | Novel on -load voltage regulating switch |
| CN206282746U (en) * | 2016-12-14 | 2017-06-27 | 浙江腾龙电器有限公司 | A kind of bar shaped composite vacuum load ratio bridging switch |
-
2018
- 2018-01-22 CN CN201810059597.5A patent/CN108282121A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202076106U (en) * | 2011-05-31 | 2011-12-14 | 北京博瑞莱智能科技有限公司 | Automatic voltage-regulating transformer |
| CN102360851A (en) * | 2011-09-08 | 2012-02-22 | 北京博瑞莱智能科技有限公司 | Combined permanent-magnetic mechanism voltage/capacity adjusting switch |
| CN104465140A (en) * | 2014-12-29 | 2015-03-25 | 刁俊起 | Permanent magnet drive on-load tap changer |
| CN104699151A (en) * | 2015-03-27 | 2015-06-10 | 国家电网公司 | Voltage regulator, voltage regulating system and voltage regulating method |
| CN205609368U (en) * | 2016-01-19 | 2016-09-28 | 浙江宝威电气有限公司 | Novel on -load voltage regulating switch |
| CN105513772A (en) * | 2016-01-29 | 2016-04-20 | 山东电工电气集团智能电气有限公司 | On-load capacity-regulating voltage-regulating power distribution transformer |
| CN105719817A (en) * | 2016-03-03 | 2016-06-29 | 北京平开智能电气有限公司 | Permanent magnetic vacuum on-load voltage regulation switch, transformer and on-load voltage regulation method |
| CN105826062A (en) * | 2016-05-26 | 2016-08-03 | 北京博瑞莱智能科技集团有限公司 | On-load capacitance-adjusting and voltage-adjusting switch device and system |
| CN206282746U (en) * | 2016-12-14 | 2017-06-27 | 浙江腾龙电器有限公司 | A kind of bar shaped composite vacuum load ratio bridging switch |
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