CN201878111U - High-voltage electronic switch for load switching for power transformer - Google Patents
High-voltage electronic switch for load switching for power transformer Download PDFInfo
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- CN201878111U CN201878111U CN2010201670671U CN201020167067U CN201878111U CN 201878111 U CN201878111 U CN 201878111U CN 2010201670671 U CN2010201670671 U CN 2010201670671U CN 201020167067 U CN201020167067 U CN 201020167067U CN 201878111 U CN201878111 U CN 201878111U
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- electronic switch
- handover module
- switching
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- 239000013307 optical fiber Substances 0.000 claims abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
The utility model provides a high-voltage electronic switch for load switching for a power transformer, wherein the high-voltage electronic switch consists of selection modules, switching modules and a high-voltage electronic switch control circuit; the selection modules and the switching modules are alternating current noncontact switches; two lead ends are led out of each selection module and each switching module respectively; one lead end of each switching module is connected with one lead end of N (N is a natural number) selection modules; a branch contact of the high-voltage electronic switch is led out of the other lead end of the selection modules and is connected with a corresponding branch contact of a transformer coil; the other ends of all switching modules are connected together so as to serve as the tail end of the transformer coil; and the high-voltage electronic switch control circuit is used for the switching control for the selection modules and the switching modules through optical fibers. The high-voltage electronic switch can be used singly; and a plurality of high-voltage electronic switches also can be used together, thereby forming a load voltage-regulating switch without a mechanical contact for the power transformer.
Description
Technical field
The utility model belongs to the optical, mechanical and electronic integration field, is a kind of high-pressure electronic switch that power transformer has the switching of carrying that is used for.
Background technology
At present, transformer generally adopts vacuum on-load operation switch or mechanical type on load tap changer.But there is intrinsic defective in these two kinds of switches: switch has the phenomenon of arcing sparking when switching, need arc-control device, the arc-control device complex structure; High and the wearing and tearing easily of contact technological requirement; By motor stiff spring energy storage pulling, therefore the twice switching interval time long (4-6 second), be not suitable for frequent operation during switching; Voltage waveform distortion is bigger during switching.
For response speed and the reduction failure rate that further improves transformer on-load voltage regulating, people begin one's study and adopt power electronic technology and little processing controls technology, under specific pressure adjusting structure, realize on-load voltage regulation by the break-make of control electronic power switch device and the number of turn of change transformer.This switching need not the switching of mechanical switch, also can not produce electric arc, and response speed is fast, therefore, more and more is subjected to manufacturer and research organizations pay much.
Summary of the invention
In order to overcome the problems of the prior art, the present utility model be used for power transformer and have and carry a high-pressure electronic switch that switches, make and adopt dry-type power transformer of the present utility model to have load tapchanging function.
The purpose of this utility model is achieved in that this high-pressure electronic switch is made up of sorting module, handover module and high-pressure electronic ON-OFF control circuit; Sorting module and handover module all are AC contact-less switch.Each sorting module and handover module are respectively drawn two lead ends.One lead end of each handover module connects and can link together with N (N is a natural number) sorting module one lead end, and another lead end of sorting module is drawn the branch contact head of high-pressure electronic switch, divides contact head to be connected accordingly with transformer coil; The other end of all handover modules links together as the end of transformer coil.The high-pressure electronic ON-OFF control circuit is carried out switch control by optical fiber to sorting module and handover module.
The AC contact-less switch of sorting module and handover module can be the inverse parallel controllable silicon, MOSFET, IGBT, power electronic elements such as IGCT or solid-state relay.
The utility model can use separately, also can a plurality ofly use together, and having constituted power transformer by a plurality of high-pressure electronic switches does not have mechanical contact on-load voltage regulating switch.
Description of drawings
Accompanying drawing 1 is a topological diagram of the present utility model;
Accompanying drawing 2 is the single-phase topological diagram of the utility model in concrete enforcement;
Accompanying drawing 3 is the three-phase topological diagram of the utility model in concrete enforcement.
Specific embodiment
High-pressure electronic switch topology figure as shown in Figure 1.K1 wherein, K2......K12 is called the sorting module; Kq1, Kq2 ... Kq4 is called handover module; Sorting module and handover module all are AC contact-less switch.Sorting module K1, K3, K5 is connected with handover module Kq1; K2, K4, K6 is connected with handover module Kq2; K7, K9, K11 is connected with handover module Kq3; K8, K10, K12 is connected with handover module Kq4.Kq1, Kq2, Kq3, the Kq4 other end links together, and draws high-pressure electronic switch terminal X.K1, the K2......K12 other end is drawn electronic switch binding post 1,2,3 ... 12.GK is the high-pressure electronic ON-OFF control circuit, can carry out switch control to sorting module and handover module.
Among the utility model high-pressure electronic switch topology figure, handover module can connect N sorting module, and N elects 3 examples just as in the accompanying drawing 1.Handover module can have M, and M elects 4 examples just as in the accompanying drawing 1.
In the embodiment shown in Figure 2, handover module Kq1 and 3 sorting module K1, K3, K5 connects; Handover module Kq2 and 2 sorting module K2, K4 connects; Handover module Kq3 and 2 sorting module K7, K9 connects; Handover module Kq4 and 2 sorting module K6, K3, K5 connects.The binding post of electronic switch is 1,2,3,4,5,6,7,8,9 and X.GK is the high-pressure electronic ON-OFF control circuit, can carry out switch control to sorting module and handover module.
The specific embodiment of three-phase uses 3 above-mentioned high-pressure electronic switches as shown in Figure 3 simultaneously, is used as 10KV dry-type power transformer on load tap changer.GK is an electronic switch control circuit, can carry out switch control to all sorting modules and handover module.3 groups of L0 in the accompanying drawing 3, L1, L2......L8 represent transformer three-phase main coil and voltage regulation coil respectively, are not high-pressure electronic switch parts.
Operation principle is as follows:
When the high-pressure electronic switch was started working, control circuit GK sent instruction, made sorting module K5, handover module KQ1 closure, and transformer is in specified shelves operating state.
When needs carry out boost operations, control circuit GK sends instruction, sorting module K5, handover module KQ1 are disconnected, and sorting module K4, handover module KQ2 are connected, the voltage regulation coil number of turn that then inserts transformer reduces one section, when line voltage remained unchanged, the transformer output voltage raise one grade.Similarly, disconnect by sorting module K4, handover module KQ2, sorting module K3, handover module KQ1 connect; Sorting module K3, handover module KQ1 disconnect, and sorting module K2, handover module KQ2 connect; Sorting module K2, handover module KQ2 disconnect, and sorting module K1, handover module KQ1 connect; Correspondingly, the voltage regulation coil number of turn that inserts transformer reduces two sections, and three sections, four sections, the transformer output voltage is finished the second gear that boosts, third gear, fourth gear operation.
When needs carried out reduced pressure operation, control circuit GK sent signal, and sorting module K5, handover module KQ1 are disconnected, and sorting module K6, handover module KQ3 are connected, and the voltage regulation coil number of turn that then inserts transformer increases by one section, finishes one grade of operation of step-down.Similarly, disconnect by sorting module K6, handover module KQ3, K7, handover module KQ4 connect simultaneously; Sorting module K7, handover module KQ4 disconnect, and the module of sorting simultaneously K8, handover module KQ3 connect; Sorting module K8, handover module KQ3 disconnect, and the module of sorting simultaneously K9, handover module KQ4 connect; Correspondingly, the voltage regulation coil number of turn that inserts transformer increases by two sections, three sections, four sections, finishes step-down second gear, third gear, fourth gear operation.
Claims (3)
1. one kind can be used for the load tapchanging high-pressure electronic switch of power transformer, it is characterized in that described high-pressure electronic switch is made up of sorting module, handover module and high-pressure electronic ON-OFF control circuit;
Each sorting module and handover module are respectively drawn two lead ends; One lead end of each handover module and N sorting module one lead end link together, and wherein N is a natural number, and another lead end of sorting module is drawn the branch contact head of high-pressure electronic switch, divide contact head to be connected accordingly with transformer coil; The other end of handover module links together as the end of transformer coil;
The high-pressure electronic ON-OFF control circuit is carried out switch control by optical fiber to sorting module and handover module.
2. high-pressure electronic switch as claimed in claim 1 is characterized in that its sorting module and handover module all are AC contact-less switch.
3. high-pressure electronic switch as claimed in claim 1 is characterized in that its sorting module and handover module are the inverse parallel controllable silicons, MOSFET, IGBT, IGCT or solid-state relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201670671U CN201878111U (en) | 2010-04-19 | 2010-04-19 | High-voltage electronic switch for load switching for power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201670671U CN201878111U (en) | 2010-04-19 | 2010-04-19 | High-voltage electronic switch for load switching for power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201878111U true CN201878111U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201670671U Expired - Fee Related CN201878111U (en) | 2010-04-19 | 2010-04-19 | High-voltage electronic switch for load switching for power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201878111U (en) |
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2010
- 2010-04-19 CN CN2010201670671U patent/CN201878111U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Wei Document name: Notification of Passing Examination on Formalities |
|
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: ZHANG ZHIJIE Effective date: 20140114 Owner name: THERMAL POWER PLANT OF DATANG HUTUBI ENERGY DEVELO Free format text: FORMER OWNER: ZHANG WEI Effective date: 20140114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 831204 CHANGJI HUI AUTONOMOUS PREFECTURE, XINJIANG UYGUR AUTONOMOUS REGION |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140114 Address after: 831204, the Xinjiang Uygur Autonomous Region, Changji Hui Autonomous Prefecture, Hutubi County, five, on the west side of the Dragon King Temple Road Patentee after: POWER PLANT, DATANG HUTUBI ENERGY DEVELOPMENT CO., LTD. Address before: 100192, Beijing, Haidian District Qinghe Longgang Road, Lane 2, building 1211 Patentee before: Zhang Wei Patentee before: Zhang Zhijie |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20150419 |
|
| EXPY | Termination of patent right or utility model |