CN106653316A - Single-phase power supply system of three-phase transformer - Google Patents
Single-phase power supply system of three-phase transformer Download PDFInfo
- Publication number
- CN106653316A CN106653316A CN201710036619.1A CN201710036619A CN106653316A CN 106653316 A CN106653316 A CN 106653316A CN 201710036619 A CN201710036619 A CN 201710036619A CN 106653316 A CN106653316 A CN 106653316A
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- Prior art keywords
- phase
- switch
- contact
- transformer
- tap
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Classifications
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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
The invention relates to a single-phase power supply system of a three-phase transformer. The single-phase power supply system is connected to the low-voltage output end of the transformer through tapping on a three-phase high voltage winding, and through a three-phase switch K1 and a single-phase switch as well as an independent current limiting reactor and a slide selector switch, and a single-phase output formed by contacts of the slide selector switch is provided for a user, so that the three-phase transformer can output single-phase power, and can limit single-phase load current by adjusting the reactance with the independent current limiting reactor arranged in a B phase when the load uses single-phase power, especially when the load is repeatedly powered on or off for detecting the related technical data of the test load or simulating the working state of the load. Due to the symmetry of single-phase low voltage, current and reactance output by the three-phase transformer, the system stability of the three-phase power supply system while using a single phase is ensured, the system loss is reduced, and the efficiency and reliability of the system are improved. The single-phase power supply system has two single-phase output voltage ends which can work at the same time, can also work alone, and do not affect each other.
Description
Technical field
The present invention relates to a kind of transformer, particularly a kind of three-phase transformer single phase power supply system.
Background technology
Commutation voltage transformer system is at present generally using the voltage x current required for single-phase transformer reduced output voltage；What is existed asks
Topic is：
1. Monophase electric power is less using general capacity, cannot sometimes meet capacity requirement；
2. because power system is three-phase system, when using larger capacity Monophase electric power, if Monophase electric power capacity is excessive, meeting
Cause the imbalance of three-phase electrical power system, to cause the collapse of three-phase system；Particularly in the correlation for needing to detect test load
Technical data（The contact resistance for such as switching）When, for the working condition of fictitious load, to load power transmission, power-off repeatedly,
Now will repeatedly cause the imbalance of three-phase electrical power system, cause the destruction of three-phase system.
The content of the invention
It is an object of the invention to provide a kind of three-phase transformer single phase power supply system of new structure form, existing to overcome
Above-mentioned deficiency existing for technology.
The present invention is adopted the technical scheme that：A kind of three-phase transformer single phase power supply system, including A, B, C tri- of transformer
Phase high pressure winding, also including independent current-limiting reactor, threephase switch, single-phase switch and sliding selector switch, the three-phase high-voltage
Two of winding 2 taps of every phase high pressure winding extraction phase switch-dividing corresponding with threephase switch determine contact connection, i.e.,：
The tap A1 and tap A2 of A phase high pressure windings meets respectively two of the A phase switch-dividings of threephase switch and determines contact；
The tap B1 and tap B2 of B phase high pressure windings meets respectively two of the B phase switch-dividings of threephase switch and determines contact；
The tap C1 and tap C2 of C phase high pressure windings meets respectively two of the C phase switch-dividings of threephase switch and determines contact；
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 connects the moving contact of single-phase switch, the tap G1 of independent current-limiting reactor and takes out
Head G2 meets respectively two of single-phase switch and determines contact, independent current-limiting reactor（LG）Output termination transformer low voltage b output ends,
The dynamic butt strip of transformer low voltage b output termination sliding selector switches, it is defeated that the first contact of sliding selector switch meets transformer low voltage a
Go out end, the 4th contact of sliding selector switch connects transformer low voltage c output ends, and the first contact of sliding selector switch and second touch
Head or the 3rd contact and the 4th contact constitute single phase low voltage output end.
Because a kind of three-phase transformer single phase power supply system for adopting above-mentioned technical proposal, the present invention has following beneficial effect
Really：
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 by three-phase
Switch and single-phase switch and independent current-limiting reactor and sliding selector switch, are connected to the low-voltage output of transformer, pass through
The contact composition single-phase output of sliding selector switch provides the low pressure of user's request, enables three-phase transformer to export sufficient structure capacity
Single phase low voltage, meet the demand of user, particularly need during using Monophase electric power detect test load related skill
During art data, for the working condition of fictitious load, can be limited by being located at the independent of B phases loading when power transmission, power-off repeatedly
Stream reactor adjusts reactance and limits single-phase load and uses electric current, the input current of stable high voltage net side, to ensure stablizing for system,
Avoid the imbalance of three-phase electrical power system；
2. a kind of low pressure output of three-phase transformer single phase power supply system of the present invention, load can be connected on sliding selector switch
Between first contact and the second contact or between the 3rd contact and the 4th contact, the voltage value of its output is equal, and electric current is by setting
Adjust control in the independent current-limiting reactor of B phases, when between the first contact and the second contact or the 3rd contact and the 4th contact it
Between low-voltage output when using simultaneously, electric current and reactance are equal, i.e., single-phase symmetrical, the three-phase transformer that three-phase transformer is exported
The voltage of output single-phase low tension, electric current, reactance are symmetrical, so as to ensure that（Using it is single-phase when）Three-phase power supply system is stablized,
The loss of reduction system, improves the efficiency and reliability of system；
3., due to a kind of three-phase transformer single phase power supply system of the present invention, low pressure output can be changed by adjusting threephase switch
The receiving voltage of end load, the reactance that independent current-limiting reactor is adjusted by adjusting single-phase switch passes through so as to change low pressure output
Electric current, realizes limiting and steady load electric current；
4. a kind of three-phase transformer single phase power supply system of the present invention has two single-phase output voltage ends, can work simultaneously,
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 pressure windings, LB-B phase high pressure windings, LC-C phase high pressure windings, LG-independent current-limiting reactor, K1-tri-
Mutually switch, K1a-A phase switch-dividings, K1b-B phase switch-dividings, K1c-C phase switch-dividings, K2-single-phase switch, Kra-slip choosing
Select switch.
Specific embodiment
Embodiment one
A kind of three-phase transformer single phase power supply system, including A, B, C three-phase high-voltage winding LA, LB and LC of transformer, this is single-phase
Electric power system also include independent current-limiting reactor LG, threephase switch K1, single-phase switch K2 and sliding selector switch Kra, described three
Two of phase high pressure winding 2 taps of every phase high pressure winding extraction phase switch-dividing corresponding with threephase switch K1 determine contact connection, i.e.,：
The tap A1 and tap A2 of A phase high pressure winding LA meets respectively two of the A phase switch-dividing K1a of threephase switch K1 and determines contact；
The tap B1 and tap B2 of B phase high pressure winding LB meets respectively two of the B phase switch-dividing K1b of threephase switch K1 and determines contact；
The tap C1 and tap C2 of C phase high pressure winding LC meets respectively two of the C phase switch-dividing K1c of threephase switch K1 and determines contact；
The moving contact of the A phase switch-dividing K1a of the threephase switch K1 connects transformer low voltage a output ends；
The moving contact of the C phase switch-dividing K1c of threephase switch K1 connects transformer low voltage c output ends；
The moving contact of the B phase switch-dividing K1b of threephase switch K1 connects the moving contact of single-phase switch K2, and independent current-limiting reactor LG's takes out
Head G1 and tap G2 meets respectively two of single-phase switch K2 and determines contact, the output termination transformer low voltage of independent current-limiting reactor LG
B output ends, the dynamic butt strip of transformer low voltage b output termination sliding selector switch Kra, first contact 1 of sliding selector switch Kra
Transformer low voltage a output ends are connect, the 4th contact 4 of sliding selector switch Kra connects transformer low voltage c output ends, and slip selection is opened
The first contact 1 and the second contact 2 or the 3rd contact 3 and the 4th contact 4 for closing Kra constitutes single phase low voltage output end.
During the present embodiment application：
During the present embodiment application：Load R1 is accessed between the first contact 1 and the second contact 2, in the 3rd contact 3 and the 4th contact
Load R2 is accessed between 4, by selector Kra the first contact 1, the second contact 2, between the 3rd contact 3, the 4th contact 4 it is fast
Fast back and forth movement, to R1 and R2 power transmission, power-off repeatedly, simulates the working condition of R1 and R2, realizes simultaneously to R1 skills related to R2
The detection test of art data：
When the dynamic butt strip of sliding selector switch Kra is ridden on the first contact 1, the second contact 2, load R1 is short-circuit, and dynamic butt strip rides over
When on the 3rd contact 3, the 4th contact 4, R2 is short-circuit for load, but because B phases have independent current-limiting reactor LG, limits short circuit
Electric current is not impacted in certain number range to system；When the dynamic butt strip of sliding selector switch Kra rides over
When on two contacts 2 and the 3rd contact 3, two load resistances R1 and R2 enter working condition；Because R1 and R2 are repeatedly in transformation
A, B of device is alternate（Between first contact 1 and the second contact 2）It is alternate with B, C（3rd contact 3 and the 4th contact 4）By electricity, transformation
Device threephase load generally keeps load balancing（Above load R1 and R2 can be identical load, or different loads）.
Embodiment two
A kind of three-phase transformer single phase power supply system（Referring to accompanying drawing 3）, its structure is essentially identical with embodiment one, including transformer
A, B, C three-phase high-voltage winding, independent current-limiting reactor LG, threephase switch K1, single-phase switch K2 and sliding selector switch Kra；
Except that：Only to a load supplying, can be between output end the first contact 1 and the second contact 2（Or the 3rd contact
3 and the 4th between contact 4）Load R is accessed, is fixed by the dynamic butt strips of selector Kra and is ridden on the second contact and the 3rd contact 3,
Realize to loading the uninterrupted continuous power transmissions of R.
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 because B phases have independent current-limiting reactor LG, A, B phase current is limited in certain number range,
Thus system is not impacted；When load R is connected between the contact 3 of output end the 3rd and the 4th contact 4, R is low for load
Work between pressure B, C phase, A phase no currents, but because B phases have independent current-limiting reactor LG, B, C phase current is limited in into one
In fixed number range, thus system is not impacted.
Using when, if desired for detection test load R related technical data, can by selector Kra the second contact 2,
Between 3rd contact 3, the 4th contact 4（Or between the first contact 1, the second contact 2, the 3rd contact 3）Quick back and forth movement, it is right
It is connected between A, B phase（Or be connected between B, C phase load）Load R power transmission, power-off repeatedly, the working condition of fictitious load R is realized
Detection test to loading R related technical datas.
Embodiment three
A kind of three-phase transformer single phase power supply system（Referring to accompanying drawing 4）, its structure is essentially identical with embodiment one, including transformer
A, B, C three-phase high-voltage winding, independent current-limiting reactor LG, threephase switch K1, single-phase switch K2 and sliding selector switch Kra；
Except that：Using when respectively between output end the first contact 1 and the second contact 2 and in the 3rd contact 3 and the 4th
Load is accessed between contact 4, i.e., load R1 is accessed between output end the first contact 1 and the second contact 2, the 3rd contact 3 with
It can be identical load, or different loads that load R2, R1 and R2 are accessed between 4th contact 4, sliding selector switch Kra
Dynamic butt strip fix and ride on the second contact 2 and the 3rd contact 3, reach simultaneously to two loads for low-voltage single-phase electric purposes.
Claims (1)
1. a kind of A, B, C three-phase high-voltage winding of three-phase transformer single phase power supply system, including transformer, it is characterised in that：
The single phase power supply system also includes independent current-limiting reactor（LG）, threephase switch（K1）, single-phase switch（K2）With choosing of sliding
Select switch（Kra）, the three-phase high-voltage winding is per 2 taps of extraction of phase high pressure winding and threephase switch（K1）Correspondence phase switch-dividing
Two determine contact connection, i.e.,：
The tap A1 and tap A2 of A phase high pressure windings connects respectively threephase switch（K1）A phase switch-dividings（K1a）Two fixed touch
Head；
The tap B1 and tap B2 of B phase high pressure windings connects respectively threephase switch（K1）B phase switch-dividings（K1b）Two fixed touch
Head；
The tap C1 and tap C2 of C phase high pressure windings connects respectively threephase switch（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 determine contact, 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 end, sliding selector switch（Kra）The first contact（1）With the second contact（2）Or the 3rd contact（3）Touch 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN106653316A true CN106653316A (en) | 2017-05-10 |
| CN106653316B CN106653316B (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710036619.1A Active CN106653316B (en) | 2017-01-18 | 2017-01-18 | A kind of three-phase transformer single phase power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017215460A1 (en) * | 2017-09-04 | 2019-03-07 | Siemens Aktiengesellschaft | Arrangement for connection to a high-voltage network with adjustable impedance |
| PL426308A1 (en) * | 2018-07-11 | 2019-08-26 | 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017215460A1 (en) * | 2017-09-04 | 2019-03-07 | Siemens Aktiengesellschaft | Arrangement for connection to a high-voltage network with adjustable impedance |
| US11594368B2 (en) | 2017-09-04 | 2023-02-28 | Siemens Energy Global GmbH & Co. KG | Assembly for connection to a high-voltage system with adjustable impedance |
| PL426308A1 (en) * | 2018-07-11 | 2019-08-26 | Strzelecki Ryszard Pgee | Distributive transformer with multi-zone voltage control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106653316B (en) | 2018-07-27 |
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Inventor after: Fan Weibo Inventor after: Rong Huazhong Inventor after: Liu Wei Inventor after: Li Wuning Inventor after: He Zuwen Inventor after: Li Tingwei Inventor after: Zhou Ying Inventor after: Yi Shuai Inventor after: Xu Haitao Inventor before: Fan Weibo Inventor before: Li Wuning Inventor before: He Zuwen Inventor before: Li Tingwei |
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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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