CN106653316B - A kind of three-phase transformer single phase power supply system - Google Patents
A kind of three-phase transformer single phase power supply system Download PDFInfo
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- CN106653316B CN106653316B CN201710036619.1A CN201710036619A CN106653316B CN 106653316 B CN106653316 B CN 106653316B CN 201710036619 A CN201710036619 A CN 201710036619A CN 106653316 B CN106653316 B CN 106653316B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ac-Ac Conversion (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
A kind of three-phase transformer single phase power supply system,Pass through the tap on three-phase high-voltage winding,And pass through threephase switch K1 and single-phase switch and independent current-limiting reactor and sliding selector switch,It is connected to the low-voltage output of transformer,Single-phase output is formed by the contact of sliding selector switch, and user is provided,Enable three-phase transformer output single-phase electric power,And when load is using Monophase electric power,Especially in the related technical data for needing detection test load,Need the working condition of fictitious load and to loading power transmission repeatedly,When power-off,Reactance limitation single-phase load electric current can be adjusted by being located at the independent current-limiting reactor of B phases,Due to three-phase transformer output single-phase low voltage,Electric current,The symmetry of reactance,To ensure that system of three-phase power supply system when using single-phase is stablized,Reduce the loss of system,Improve the efficiency and reliability of system.There are two single-phase output voltage ends for single phase power supply system tool, can work at the same time, can also work independently, be independent of each other.
Description
Technical field
The present invention relates to a kind of transformer, especially a kind of three-phase transformer single phase power supply system.
Background technology
The current required voltage and current of generally use single-phase transformer reduced output voltage of commutation voltage transformer system；It is existing to ask
Topic is：
1. Monophase electric power is smaller using general capacity, capacity requirement sometimes cannot be satisfied；
2. since electric system is three-phase system, when using larger capacity Monophase electric power, if Monophase electric power capacity mistake
Greatly, the imbalance that three-phase electrical power system can be caused, to cause the collapse of three-phase system；Especially needing to detect test load
Related technical data（The contact resistance of such as switch）When, it, be to loading repeatedly power transmission, breaking for the working condition of fictitious load
Electricity will cause the imbalance of three-phase electrical power system, lead to the destruction of three-phase system repeatedly at this time.
Invention content
It is existing to overcome the purpose of the present invention is to provide a kind of three-phase transformer single phase power supply system of new structure form
Above-mentioned deficiency present in technology.
The technical solution adopted by the present invention is that：A kind of three-phase transformer single phase power supply system includes A, B, C tri- of transformer
Phase high-voltage winding further includes independent current-limiting reactor, threephase switch, single-phase switch and sliding selector switch, the three-phase high-voltage
Two fixed contacts connection of the winding per phase high-voltage winding extraction 2 taps phase switch-dividing corresponding with threephase switch, i.e.,：
The tap A1 and tap A2 of A phase high-voltage windings connect two fixed contacts of the A phase switch-dividings of threephase switch respectively；
The tap B1 and tap B2 of B phase high-voltage windings connect two fixed contacts of the B phase switch-dividings of threephase switch respectively；
The tap C1 and tap C2 of C phase high-voltage windings connect two fixed contacts of the C phase switch-dividings of threephase switch respectively；
The moving contact of the A phase switch-dividings of the threephase switch connects transformer low voltage a output ends；
The moving contact of the C phase switch-dividings of threephase switch connects transformer low voltage c output ends；
The moving contact of the B phase switch-dividings of threephase switch meets the moving contact of single-phase switch, the tap G1 of independent current-limiting reactor
Connect two fixed contacts of single-phase switch, independent current-limiting reactor respectively with tap G2（LG）Output termination transformer low voltage b it is defeated
Outlet, the dynamic butt strip of transformer low voltage b output termination sliding selector switch, it is low that the first contact of sliding selector switch connects transformer
Press a output ends, the 4th contact of sliding selector switch connects transformer low voltage c output ends, the first contact of sliding selector switch with
Second contact or third contact and the 4th contact constitute single phase low voltage output end.
Due to the adoption of the above technical scheme, a kind of three-phase transformer single phase power supply system of the present invention has following beneficial to effect
Fruit：
1. a kind of three-phase transformer single phase power supply system of the present invention, by the tap on three-phase high-voltage winding, and passes through
Threephase switch and single-phase switch and independent current-limiting reactor and sliding selector switch, are connected to the low-voltage output of transformer,
The low pressure that single-phase output provides user demand is formed by the contact of sliding selector switch, three-phase transformer is enable to export sufficient structure
The single phase low voltage of capacity, meets the needs of users, and the phase for detecting test load is especially needed during using Monophase electric power
It,, can be by being located at the only of B phases when be to loading repeatedly power transmission, power-off for the working condition of fictitious load when closing technical data
Vertical current-limiting reactor adjusts reactance limitation single-phase load and uses electric current, the input current of stable high voltage net side, to ensure system
Stablize, avoids the imbalance of three-phase electrical power system；
2. a kind of low pressure of three-phase transformer single phase power supply system of the present invention exports, load can be connected on sliding selection and open
Between the first contact and the second contact that close or between third contact and the 4th contact, the voltage value of output is equal, electric current
By being located at the independent current-limiting reactor adjusting control of B phases, when between the first contact and the second contact or third contact and the 4th touch
Low-voltage output is simultaneously in use, electric current and reactance are equal between head, i.e., three-phase transformer is exported single-phase symmetrical, three phase transformations
The voltage of depressor output single-phase low tension, electric current, reactance are symmetrical, to ensure that（When using single-phase）Three-phase power supply system is steady
It is fixed, the loss of system is reduced, the efficiency and reliability of system is improved；
3. due to a kind of three-phase transformer single phase power supply system of the present invention, low pressure can be changed by adjusting threephase switch
The receiving voltage of output end load adjusts the reactance of independent current-limiting reactor to change low pressure output by adjusting single-phase switch
By electric current, limitation and steady load electric current are realized；
It, can work simultaneously 4. a kind of three-phase transformer single phase power supply system tool of the present invention is there are two single-phase output voltage end
Make, can also work independently, be independent of each other.
A kind of technical characteristic of three-phase transformer single phase power supply system of the present invention is made below by drawings and examples
Further instruction.
Description of the drawings
Fig. 1 is a kind of conspectus of three-phase transformer single phase power supply system of the present invention；
Fig. 2 is a kind of three-phase transformer single phase power supply system road schematic diagram of embodiment one（Application state one）；
Fig. 3 is a kind of three-phase transformer single phase power supply system road schematic diagram of embodiment two（Application state two）；
Fig. 4 is a kind of three-phase transformer single phase power supply system road schematic diagram of embodiment three（Application state three）；
In figure：
LA-A phase high-voltage windings, LB-B phase high-voltage windings, LC-C phase high-voltage windings, the independent current-limiting reactors of LG-,
K1-threephase switch, K1a-A phase switch-dividing, K1b-B phase switch-dividings, K1c-C phase switch-dividings, K2-single-phase switch, Kra-
Sliding selector switch.
Specific implementation mode
Embodiment one
A kind of three-phase transformer single phase power supply system includes A, B, C three-phase high-voltage winding LA, LB and LC of transformer, should
Single phase power supply system further includes independent current-limiting reactor LG, threephase switch K1, single-phase switch K2 and sliding selector switch Kra, institute
Three-phase high-voltage winding is stated per two fixed contacts of phase high-voltage winding extraction 2 taps phase switch-dividing corresponding with threephase switch K1 to connect
It connects, i.e.,：
The tap A1 and tap A2 of A phase high-voltage windings LA connects two of the A phase switch-dividings K1a of threephase switch K1 and fixed touches respectively
Head；
The tap B1 and tap B2 of B phase high-voltage windings LB connects two of the B phase switch-dividings K1b of threephase switch K1 and fixed touches respectively
Head；
The tap C1 and tap C2 of C phase high-voltage windings LC connects two of the C phase switch-dividings K1c of threephase switch K1 and fixed touches respectively
Head；
The moving contact of the A phase switch-dividings K1a of the threephase switch K1 connects transformer low voltage a output ends；
The moving contact of the C phase switch-dividings K1c of threephase switch K1 connects transformer low voltage c output ends；
The moving contact of the B phase switch-dividings K1b of threephase switch K1 meets the moving contact of single-phase switch K2, independent current-limiting reactor LG
Tap G1 and tap G2 connect two fixed contacts of single-phase switch K2 respectively, the output of independent current-limiting reactor LG terminates transformer
Low pressure b output ends, the dynamic butt strip of transformer low voltage b output termination sliding selector switches Kra, the first of sliding selector switch Kra
Contact 1 connects transformer low voltage a output ends, and the 4th contact 4 of sliding selector switch Kra connects transformer low voltage c output ends, sliding choosing
The first contact 1 and the second contact 2 or third contact 3 and the 4th contact 4 for selecting switch Kra constitute single phase low voltage output end.
When the present embodiment is applied：
When the present embodiment is applied：The access load R1 between the first contact 1 and the second contact 2, in third contact 3 and the 4th
Between contact 4 access load R2, by selector Kra the first contact 1, the second contact 2, third contact 3, the 4th contact 4 it
Between quick back and forth movement, to R1 and R2 repeatedly power transmission, power-off, simulate R1 and R2 working condition, realize simultaneously to R1 and R2 phases
Close the detection experiment of technical data：
When the dynamic butt strip of sliding selector switch Kra rides over the first contact 1, on the second contact 2 when load R1 short circuits, move butt strip
Ride over third contact 3, on the 4th contact 4 when, load R2 short circuits, but since B phases are there are independent current-limiting reactor LG, limit
Short circuit current does not impact system in certain numberical range；When the dynamic butt strip of sliding selector switch Kra is taken
When on the second contact 2 and third contact 3, two load resistances R1 and R2 enter working condition；Since R1 and R2 exist repeatedly
A, B of transformer are alternate（Between first contact 1 and the second contact 2）It is alternate with B, C（Third contact 3 and the 4th contact 4）By electricity,
Three-Phase Transformer load generally keeps load balancing（The above load R1 and R2 can be identical load, can also be different negative
It carries）.
Embodiment two
A kind of three-phase transformer single phase power supply system（Referring to attached drawing 3）, structure and embodiment one are essentially identical, including become
A, B, C three-phase high-voltage winding, independent current-limiting reactor LG, threephase switch K1, single-phase switch K2 and the sliding selector switch of depressor
Kra；
Except that：It, can be between output end the first contact 1 and the second contact 2 only to a load supplying（Or third
Between contact 3 and the 4th contact 4）Access load R moves butt strip fixation by selector Kra and rides over the second contact and third contact 3
On, it realizes to loading R uninterruptedly continuous power transmissions.
When load R is connected between output end the first contact 1 and the second contact 2, load R works between low pressure A, B phase,
C phase no currents, but since B phases are there are independent current-limiting reactor LG, A, B phase current are limited in certain numberical range,
Thus system is not impacted；When load R is connected between output end third contact 3 and the 4th contact 4, R is low for load
It works between pressure B, C phase, A phase no currents, but since there are independent current-limiting reactor LG for B phases, B, C phase current are limited in one
In fixed numberical range, thus system is not impacted.
In application, such as need to detect the related technical data of test load R, can by selector Kra the second contact 2,
Between third contact 3, the 4th contact 4（Or between the first contact 1, the second contact 2, third contact 3）Quick back and forth movement, it is right
It is connected between A, B phase（Or it is connected between B, C phase and loads）Loading R, power transmission, power-off, the working condition of fictitious load R are realized repeatedly
To loading the detection experiment of R related technical datas.
Embodiment three
A kind of three-phase transformer single phase power supply system（Referring to attached drawing 4）, structure and embodiment one are essentially identical, including become
A, B, C three-phase high-voltage winding, independent current-limiting reactor LG, threephase switch K1, single-phase switch K2 and the sliding selector switch of depressor
Kra；
Except that：Using when respectively between output end the first contact 1 and the second contact 2 and third contact 3 with
Load is accessed between 4th contact 4, i.e., the access load R1 between output end the first contact 1 and the second contact 2, in third contact
3 and the 4th the load of access between contact 4 R2, R1 and R2 can be identical load, can also be different loads, sliding selector switch
The dynamic butt strip fixation of Kra rides on the second contact 2 and third contact 3, the mesh for reaching while being loaded to two for low-voltage single-phase electric
's.
Claims (1)
1. a kind of three-phase transformer single phase power supply system includes A, B, C three-phase high-voltage winding of transformer, it is characterised in that：
The single phase power supply system further includes independent current-limiting reactor（LG）, threephase switch（K1）, single-phase switch（K2）It is selected with sliding
Select switch（Kra）, the three-phase high-voltage winding is per phase high-voltage winding 2 taps of extraction and threephase switch（K1）Corresponding phase switch-dividing
Two fixed contacts connection, i.e.,：
The tap A1 and tap A2 of A phase high-voltage windings connect threephase switch respectively（K1）A phase switch-dividings（K1a）Two fixed touch
Head；
The tap B1 and tap B2 of B phase high-voltage windings connect threephase switch respectively（K1）B phase switch-dividings（K1b）Two fixed touch
Head；
The tap C1 and tap C2 of C phase high-voltage windings connect threephase switch respectively（K1）C phase switch-dividings（K1c）Two fixed touch
Head；
The threephase switch（K1）A phase switch-dividings（K1a）Moving contact connect transformer low voltage a output ends；
Threephase switch（K1）C phase switch-dividings（K1c）Moving contact connect transformer low voltage c output ends；
Threephase switch（K1）B phase switch-dividings（K1b）Moving contact connect single-phase switch（K2）Moving contact, independent current-limiting reactor
（LG）Tap G1 and tap G2 connect single-phase switch respectively（K2）Two fixed contacts, independent current-limiting reactor（LG）Output end
Connect transformer low voltage b output ends, transformer low voltage b output termination sliding selector switches（Kra）Dynamic butt strip, sliding selector switch
（Kra）The first contact（1）Connect transformer low voltage a output ends, sliding selector switch（Kra）The 4th contact（4）Connect transformer
Low pressure c output ends, sliding selector switch（Kra）The first contact（1）With the second contact（2）Or third contact（3）It is touched with the 4th
Head（4）Constitute single phase low voltage output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710036619.1A CN106653316B (en) | 2017-01-18 | 2017-01-18 | A kind of three-phase transformer single phase power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710036619.1A CN106653316B (en) | 2017-01-18 | 2017-01-18 | A kind of three-phase transformer single phase power supply system |
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| Publication Number | Publication Date |
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| CN106653316A CN106653316A (en) | 2017-05-10 |
| CN106653316B true CN106653316B (en) | 2018-07-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102017215460A1 (en) | 2017-09-04 | 2019-03-07 | Siemens Aktiengesellschaft | Arrangement for connection to a high-voltage network with adjustable impedance |
| PL234345B1 (en) * | 2018-07-11 | 2020-02-28 | Strzelecki Ryszard Pgee | Distributive transformer with multi-zone voltage control |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221821Y (en) * | 1995-02-20 | 1996-03-06 | 云南变压器厂 | Two-phase or single-phase load voltage-regulating three-phase transformer |
| CN2824496Y (en) * | 2005-09-28 | 2006-10-04 | 任西平 | Improved illuminating system electricity saver |
| CN202711937U (en) * | 2012-03-13 | 2013-01-30 | 广西柳州特种变压器有限责任公司 | Novel multivoltage combined transformer |
| EP2609679A2 (en) * | 2010-08-27 | 2013-07-03 | EMSC (UK) Limited | Apparatus and method for use in transferring an electrical power supply in order to bypass a transformer based voltage optimization device |
| CN106451500A (en) * | 2016-10-18 | 2017-02-22 | 泰豪科技股份有限公司 | Inter-phase load transfer terminal device based on transient waveform fitting |
| CN206432116U (en) * | 2017-01-18 | 2017-08-22 | 广西柳州特种变压器有限责任公司 | A kind of three-phase transformer single phase power supply system |
-
2017
- 2017-01-18 CN CN201710036619.1A patent/CN106653316B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221821Y (en) * | 1995-02-20 | 1996-03-06 | 云南变压器厂 | Two-phase or single-phase load voltage-regulating three-phase transformer |
| CN2824496Y (en) * | 2005-09-28 | 2006-10-04 | 任西平 | Improved illuminating system electricity saver |
| EP2609679A2 (en) * | 2010-08-27 | 2013-07-03 | EMSC (UK) Limited | Apparatus and method for use in transferring an electrical power supply in order to bypass a transformer based voltage optimization device |
| CN202711937U (en) * | 2012-03-13 | 2013-01-30 | 广西柳州特种变压器有限责任公司 | Novel multivoltage combined transformer |
| CN106451500A (en) * | 2016-10-18 | 2017-02-22 | 泰豪科技股份有限公司 | Inter-phase load transfer terminal device based on transient waveform fitting |
| CN206432116U (en) * | 2017-01-18 | 2017-08-22 | 广西柳州特种变压器有限责任公司 | A kind of three-phase transformer single phase power supply system |
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| CN106653316A (en) | 2017-05-10 |
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Effective date of registration: 20180321 Address after: 536000, Tibet Beihai Road, the Guangxi Zhuang Autonomous Region Galaxy software technology park, 1, expert entrepreneurship zone Applicant after: Beihai Yinhe biological industry investment Limited by Share Ltd Address before: 545006 the Guangxi Zhuang Autonomous Region Liuzhou city and the Industrial District Yang Xu Road No. 6 Applicant before: Guangxi Liuzhou Special Transformer Co., Ltd. |
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