CN106653316A - Single-phase power supply system of three-phase transformer - Google Patents

Single-phase power supply system of three-phase transformer Download PDF

Info

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
Authority
CN
China
Prior art keywords
phase
switch
contact
transformer
tap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710036619.1A
Other languages
Chinese (zh)
Other versions
CN106653316B (en
Inventor
范韦波
李武宁
何祖文
李挺威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beihai Yinhe biological industry investment Limited by Share Ltd
Original Assignee
Guangxi Liuzhou Special Transformer Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangxi Liuzhou Special Transformer Co Ltd filed Critical Guangxi Liuzhou Special Transformer Co Ltd
Priority to CN201710036619.1A priority Critical patent/CN106653316B/en
Publication of CN106653316A publication Critical patent/CN106653316A/en
Application granted granted Critical
Publication of CN106653316B publication Critical patent/CN106653316B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04Variable 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/29Terminals; Tapping arrangements for signal inductances
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/40Structural association with built-in electric component, e.g. fuse
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/025Constructional details of transformers or reactors with tapping on coil or windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)
  • Control Of Electrical Variables (AREA)
  • Supply And Distribution Of Alternating Current (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

A kind of three-phase transformer single phase power supply system
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.
CN201710036619.1A 2017-01-18 2017-01-18 A kind of three-phase transformer single phase power supply system Active CN106653316B (en)

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

Publications (2)

Publication Number Publication Date
CN106653316A true CN106653316A (en) 2017-05-10
CN106653316B CN106653316B (en) 2018-07-27

Family

ID=58840676

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710036619.1A Active CN106653316B (en) 2017-01-18 2017-01-18 A kind of three-phase transformer single phase power supply system

Country Status (1)

Country Link
CN (1) CN106653316B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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

Citations (6)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN109637793B (en) Capacity-adjusting transformer with lightning protection function
CN106653316A (en) Single-phase power supply system of three-phase transformer
CN108768359A (en) A kind of load ratio bridging switch and its method
CN105513772B (en) A kind of loaded capacity regulating voltage regulating distribution transformer
CN206432116U (en) A kind of three-phase transformer single phase power supply system
Gao et al. A new scheme for on-load tap-changer of transformers
CN206849669U (en) A kind of dry-type on-load tap changer circuit
CN209297536U (en) A kind of nuclear phase training device
CN2625948Y (en) Noncontact compensating power stabilizer
CN208111306U (en) A kind of novel voltage-regulating structure of load ratio bridging switch
CN201918904U (en) Circuit capable of realizing different voltage outputs by aid of series-parallel-connection of transformer taps
CN206147025U (en) Unbalanced three phase treatment system's testing arrangement
CN102262193B (en) Circuit and method for testing capacitive load
CN205863934U (en) Multiplexed-capacitor group switching module
CN205829468U (en) A kind of automatic voltage regulation transformator
WO2014101286A1 (en) On-load tap-changer with thyristor auxiliary and working method thereof
CN110350650B (en) High-capacity high-reliability rapid power supply switching device and switching control method thereof
CN203706532U (en) Transmission line practical training device
CN105356473A (en) High-voltage electricity saving system
CN216926944U (en) Arc suppression coil debugging device
CN107068368B (en) A kind of dry-type on-load tap changer circuit and its capacity transfer and pressure regulation method
CN202473569U (en) Continuous transition on-load tap switch
WO1997029494A1 (en) A parallel winding voltage-regulating apparatus
CN105977965B (en) A kind of low pressure commutation device
CN204089209U (en) A kind of reactive power compensation device of thyristor throw-cut

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

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

TA01 Transfer of patent application right
TA01 Transfer of patent application right

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.

GR01 Patent grant
GR01 Patent grant