CN206921645U

CN206921645U - Three-phase transformer and single-phase transformer

Info

Publication number: CN206921645U
Application number: CN201720860822.6U
Authority: CN
Inventors: 魏贞祥; 杨福荣; 马振邦; 王磊; 张中印; 王心起
Original assignee: Co Ltd Of Beijing Bo Ruilai Intelligence Scientific And Technological Zhoukou City; BEIJING BRILE INTELLIGENT TECHNOLOGY GROUP Co Ltd
Current assignee: Co Ltd Of Beijing Bo Ruilai Intelligence Scientific And Technological Zhoukou City; BEIJING BRILE INTELLIGENT TECHNOLOGY GROUP Co Ltd
Priority date: 2017-07-14
Filing date: 2017-07-14
Publication date: 2018-01-23
Anticipated expiration: 2027-07-14

Abstract

The utility model provides a kind of three-phase transformer and single-phase transformer, is related to technical field of electric power.The three-phase transformer includes the first phase, the second phase and third phase.First phase includes the first primary side, the first secondary side, first switch, second switch, third switch, the 4th switch, the 5th switch and the 6th switch.First primary side and the coupling of the first secondary side.First primary side includes the first winding and the second winding.The head end of first winding is used for the first end for being electrically connected to power supply.The head end of first winding is also electrically connected by first switch with the head end of the second winding.One end of 3rd switch is electrically connected with the tail end of the second winding, and the other end of the 3rd switch is electrically connected by second switch with the head end of the second winding, and tail end of the 3rd other end switched also with first winding electrically connects.Respectively switched by open or close, so that each self-corresponding windings in series, so as to which three-phase transformer is run with a quarter of the first capacity, reduces open circuit loss.

Description

Three-phase transformer and single-phase transformer

Technical field

Technical field of electric power is the utility model is related to, in particular to a kind of three-phase transformer and single-phase transformer.

Background technology

The own loss of transformer is made up of open circuit loss and load loss, and the open circuit loss of transformer is in transformer terminal electricity Press it is constant in the case of exist in real time, and size is constant, and load loss is as load changes and changes.When evening shop equipment or In the case that home-use electricity is few, transformer load loss is extremely low, but transformer open circuit loss it is constant in addition due to Electricity low-voltage rises and increased；When just come into operation residential quarters or also very low factory's power consumption for just having opened when, work as seasonality The big occasion of electricity consumption difference, the open circuit loss of transformer will not also diminish as power consumption is small, now occur that " big horse traction is small Car phenomenon ", if reducing transformer noload losses using certain measure, the energy will be greatlyd save.

Most in the market to use 1/3rd capacity transfer modes, low capacity capacity is 1/3rd of Large Copacity.Three points One of capacity transfer scheme be to enter planet angle by high-pressure side to change, the mode that low-pressure side carries out series-parallel conversion realizes adjustment capacity Purpose.If but it is smaller with electric loading, this scheme can not then meet, and the voltage regulating mode of 1/3rd capacitance-adjustable transformers Needs can not be met, open circuit loss is very big, waste of resource.

Utility model content

The purpose of this utility model is to provide a kind of three-phase transformer and single-phase transformer, to improve above mentioned problem.For Realize above-mentioned purpose, technical scheme that the utility model is taken is as follows：

In a first aspect, the utility model embodiment provides a kind of three-phase transformer, the three-phase transformer includes first Phase, the second phase and third phase.First phase includes the first primary side, the first secondary side, first switch, second switch, the 3rd Switch, the 4th switch, the 5th switch and the 6th switch.First primary side and first secondary side coupling.First once Side includes the first winding and the second winding.The head end of first winding is used for the first end for being electrically connected to power supply.Described first The head end of winding is also electrically connected by the first switch with the head end of second winding.One end of 3rd switch and institute The tail end electrical connection of the second winding is stated, the other end of the 3rd switch passes through the second switch and the head of second winding End electrical connection, tail end of the described 3rd other end switched also with first winding electrically connect.First secondary side includes First output winding and the second output winding.The tail end of the first output winding electrically connects with zero phase line, first output The tail end of winding is also electrically connected by the described 4th switch with the tail end of the described second output winding.One end of 5th switch Electrically connected with the head end of the described second output winding, the other end of the 5th switch passes through the described 6th switch and described second Export the tail end electrical connection of winding.Head end of the other end of 5th switch also with the described first output winding electrically connects, institute The head end for stating the second output winding is additionally operable to be connected to the first end of load.Second phase includes the second primary side, the two or two Secondary side, the 7th switch, the 8th switch, the 9th switch, the tenth switch, the 11st switch and the 12nd switch.Described second once Side and second secondary side coupling.Second primary side includes the tertiary winding and the 4th winding.The head end of the tertiary winding is used In the second end for being electrically connected to power supply.The head end of the tertiary winding also passes through the head of the described 7th switch and the 4th winding End electrical connection.One end of 9th switch electrically connects with the tail end of the 4th winding, and the other end of the 9th switch leads to The 8th switch is crossed to electrically connect with the head end of the 4th winding.It is described 9th switch the other end also with the tertiary winding Tail end electrical connection.Second secondary side includes the 3rd output winding and the 4th output winding.The 3rd output winding Tail end electrically connects with the zero phase line, and the tail end of the 3rd output winding also passes through the described tenth switch and the described 4th output The tail end electrical connection of winding.One end of 11st switch electrically connects with the head end of the described 4th output winding, and the described tenth The other end of one switch is electrically connected by the described 12nd switch with the head end of the described 4th output winding.11st switch The other end also with the described 3rd output winding tail end electrically connect.The head end of the 4th output winding is additionally operable to be connected to negative The second end carried.The third phase is opened including the 3rd primary side, the 3rd secondary side, the 13rd switch, the 14th switch, the 15th Close, sixteenmo closes, the 17th switch and eighteenmo close.3rd primary side and the 3rd secondary side coupling.3rd Primary side includes the 5th winding and the 6th winding.The head end of 5th winding is used for the 3rd end for being electrically connected to power supply, described The head end of 5th winding is also electrically connected by the described 13rd switch with the head end of the 6th winding.15th switch One end electrically connects with the tail end of the 6th winding, it is described 15th switch the other end by the described 14th switch with it is described The head end electrical connection of 6th winding.Tail end of the other end of 15th switch also with the 5th winding electrically connects.It is described 3rd secondary side includes the 5th output winding and the 6th output winding.The tail end of the 5th output winding and zero phase line electricity Connection, the tail end of the 5th output winding is also closed by the sixteenmo to be electrically connected with the tail end of the described 6th output winding Connect.One end of 17th switch electrically connects with the head end of the described 6th output winding, the other end of the 17th switch Closed by the eighteenmo and electrically connected with the head end of the described 6th output winding.It is described 17th switch the other end also with institute The tail end electrical connection of the 5th output winding is stated, the head end of the 6th output winding is additionally operable to be connected to the 3rd end of load.Institute Stating the head end of the first winding, also the tail end with the 6th winding, the 15th switch electrically connect respectively.The tertiary winding Head end also respectively the tail end with second winding, it is described 3rd switch electrically connect.The head end of 5th winding is also distinguished Tail end, the 9th switch with the 4th winding electrically connect.

In the utility model preferred embodiment, N number of is provided between the head end and tail end of first winding One tap.N number of second tap is provided between the head end and tail end of second winding.First phase also includes the 19th Switches set and the 20th switches set.One end of 19th switches set and first tap in N number of first tap Electrical connection, the other end of the 19th switches set pass sequentially through the 3rd switch, the 20th switches set with it is described N number of Second tap connection in second tap.N number of 3rd tap is provided between the head end and tail end of the tertiary winding. N number of 4th tap is provided between the head end and tail end of the 4th winding.Second phase also includes the 21st switch Group and the 22nd switches set.One end of 21st switches set and the 3rd tap in N number of 3rd tap Electrical connection, the other end of the 21st switches set pass sequentially through the 9th switch, the 22nd switches set and the institute State the 4th tap electrical connection in N number of 4th tap.N number of is provided between the head end and tail end of the 5th winding Five taps.N number of 6th tap is provided between the head end and tail end of the 6th winding.The third phase also includes the 20th Three switches sets and the 24th switches set.One in one end of 23rd switches set and N number of 5th tap the Five taps electrically connect, and the other end of the 23rd switches set passes sequentially through the 15th switch, the 24-carat gold The 6th tap electrical connection in N number of 6th tap described in Guan Zuyu.

In the utility model preferred embodiment, above-mentioned first phase also includes the 25th switch and the second sixteenmo Close.One end of 25th switch electrically connects with the head end of first winding, the other end of the 25th switch For being connected to the first end of power supply.One end that second sixteenmo closes electrically connects with the head end of the described second output winding, The other end that second sixteenmo closes is used for the first end for being connected to load.Second phase also include the 27th switch and Second eighteenmo closes.One end of 27th switch electrically connects with the head end of the tertiary winding, and the described 27th opens The other end of pass is used for the second end for being connected to power supply.One end that second eighteenmo closes and the head of the described 4th output winding End electrical connection, the other end that second eighteenmo closes are used for the second end for being connected to load.The third phase also includes second 19 switches and the 30th switch.One end of 29th switch electrically connects with the head end of the 5th winding, and described the The other end of 29 switches is used for the 3rd end for being connected to power supply.It is described 30th switch one end with the described 6th output around The head end electrical connection of group, the other end of the 30th switch are used for the 3rd end for being connected to load.

In the utility model preferred embodiment, above-mentioned 25th switch, the second sixteenmo closes, the 27th opens Close, the second eighteenmo closes, the 29th switch and the 30th switch are vacuum switch.

In the utility model preferred embodiment, above-mentioned first phase also includes the 7th winding and the 31st switches set. The head end of 7th winding electrically connects with the tail end of second winding, is set between the head end and tail end of the 7th winding There is N number of 7th tap.Be electrically connected in N number of 7th tap one the 7th of one end of 31st switches set takes out Head, the other end of the 31st switches set electrically connect with the head end of the tertiary winding.Second phase also includes the 8th Winding and thirty-twomo pass group.The head end of 8th winding electrically connects with the tail end of the 4th winding, the described 8th around N number of 8th tap is provided between the head end and tail end of group.One end of the thirty-twomo pass group is electrically connected to described N number of The 8th tap in eight taps, the other end of the thirty-twomo pass group electrically connect with the head end of the 5th winding. The third phase also includes the 9th winding and the 33rd switches set.The head end of 9th winding and the tail of the 6th winding End electrical connection, N number of 9th tap is provided between the head end and tail end of the 9th winding.The one of 33rd switches set End is electrically connected to the 9th tap in N number of 9th tap, the other end of the 33rd switches set and described the The head end electrical connection of one winding.

In the utility model preferred embodiment, above-mentioned three-phase transformer also includes transition transformer module.The mistake The input for crossing transformer module is used for first end, the second end and the 3rd end for being connected to the power supply, the transition transformer The output end of module is used for first end, the second end and the 3rd end for being connected to load.The transition transformer module is used to ensure The three-phase transformer capacity transfer or pressure regulation process do not power off.

In the utility model preferred embodiment, above-mentioned transition transformer module includes transition transformer, the 34th Switch, the 35th switch, the 3rd sixteenmo close, the 37th switch, the 3rd eighteenmo close and the 39th switch.The mistake The on high-tension side first end for crossing transformer switchs first end for being connected to power supply by the described 34th.The transition becomes The first end of the low-pressure side of depressor switchs the first end for being connected to load by the described 35th.The transition transformer On high-tension side second end the second end for being connected to power supply is closed by the 3rd sixteenmo.The transition transformer it is low Second end of pressure side switchs the second end for being connected to load by the described 37th.The high-pressure side of the transition transformer The 3rd end the 3rd end for being connected to power supply is closed by the 3rd eighteenmo.The of the low-pressure side of the transition transformer Three ends switch the 3rd end for being connected to load by the described 39th.

In preferred embodiments of the present invention, above-mentioned first phase also includes first resistor module, second resistance module, the 3rd Resistive module and the 4th resistive module.The head end of first winding also passes through the first resistor module and second winding Head end electrical connection.The tail end of first winding also passes through the second resistance module and the other end electricity of the described 3rd switch Connection.The tail end of second winding is also electrically connected by the 3rd resistor module with one end of the described 3rd switch.It is described The head end of first output winding is also electrically connected by the 4th resistive module with the head end of the described second output winding.Described Two-phase also includes the 5th resistive module, the 6th resistive module, the 7th resistive module and the 8th resistive module.The tertiary winding Head end is also electrically connected by the 5th resistive module with the head end of the 4th winding.The tail end of the tertiary winding also passes through 6th resistive module electrically connects with the other end of the described 9th switch.The 4th three-winding tail end also passes through described Seven resistive modules electrically connect with one end of the described 9th switch.The head end of the 3rd output winding also passes through the 8th resistance Module electrically connects with the head end of the described 4th output winding.The third phase also include the 9th resistive module, the tenth resistive module, 11st resistive module and the 12nd resistive module.The head end of 5th winding also passes through the 9th resistance and the described 6th The head end electrical connection of winding.The tail end of 5th winding switchs another also by the tenth resistive module with the described 15th One end electrically connects.The tail end of six or five winding also passes through the 11st resistive module and one end of the described 15th switch Electrical connection.The head end of the 5th output winding also passes through the 12nd resistive module and the head end of the described 6th output winding Electrical connection.The first resistor module, second resistance mould, 3rd resistor module, the 4th resistive module, the 5th resistive module, Six resistive modules, the 7th resistive module, the 8th resistive module, the 9th resistive module, the tenth resistive module, the 11st resistive module The band load for being used to ensure the three-phase transformer capacity transfer process or pressure regulation process with the 12nd resistive module does not power off.

In preferred embodiments of the present invention, above-mentioned first resistor module includes first resistor and the 40th switch.It is described The head end of first winding passes sequentially through the 40th switch, the first resistor electrically connects with the head end of second winding. The second resistance module includes second resistance and the 41st switch.The tail end of first winding also passes sequentially through described 41 switches, the second resistance electrically connect with the other end of the described 3rd switch.The 3rd resistor module includes the 3rd Resistance and the 42nd switch.The tail end of second winding also passes sequentially through the 42nd switch, the 3rd resistor Electrically connected with one end of the described 3rd switch.4th resistive module includes the 4th resistance and the 43rd switch.Described The head end of one output winding also passes sequentially through the 43rd switch, the head end electricity of the 4th resistance and the described second output winding Connection.5th resistive module includes the 5th resistance and the 44th switch.The head end of the tertiary winding passes sequentially through institute State the 44th switch, the 5th resistance electrically connects with the head end of the 4th winding.6th resistive module includes the Six resistance and the 45th switch.The tail end of the tertiary winding also passes sequentially through the 45th switch, the 6th electricity Hinder and electrically connected with the other end of the described 9th switch.7th resistive module includes the 7th resistance and the 4th sixteenmo closes.Institute The tail end for stating the 4th winding also passes sequentially through the 4th sixteenmo pass, one end electricity of the 7th resistance and the described 9th switch Connection.8th resistive module includes the 8th resistance and the 47th switch.The head end of the 3rd output winding is also successively Electrically connected by the described 47th switch, the 8th resistance with the head end of the described 4th output winding.9th resistive module Closed including the 9th resistance and the 4th eighteenmo.The head end of 5th winding pass sequentially through the 4th eighteenmo close, described the Nine resistance electrically connect with the head end of the 6th winding.Tenth resistive module includes the tenth resistance and the 49th switch. It is another with the described 15th switch that the tail end of 5th winding also passes sequentially through the 49th switch, the tenth resistance One end electrically connects.11st resistive module includes the 11st resistance and the 50th switch.The tail end of 6th winding is also Pass sequentially through the 50th switch, the 11st resistance electrically connects with one end of the described 15th switch.Described 12nd Resistive module includes the 12nd resistance and the 51st switch.The head end of the 5th output winding also passes sequentially through the described 5th 11 switches, the 12nd resistance electrically connect with the head end of the described 4th output winding.

Second aspect, the utility model embodiment provide a kind of single-phase transformer, and the single-phase transformer includes first Primary side, the first secondary side, first switch, second switch, third switch, the 4th switch, the 5th switch and the 6th switch.It is described First primary side and first secondary side coupling.First primary side includes the first winding and the second winding.First winding Head end be used to be electrically connected to the first end of power supply.The head end of first winding also passes through the first switch and described second The head end electrical connection of winding.One end of 3rd switch electrically connects with the tail end of second winding, the 3rd switch The other end is electrically connected by the second switch with the head end of second winding, it is described 3rd switch the other end also with it is described The tail end electrical connection of first winding.First secondary side includes the first output winding and the second output winding.Described first is defeated The tail end for going out winding electrically connects with zero phase line, and the tail end of the first output winding also passes through the described 4th switch and described second Export the tail end electrical connection of winding.The head end that one end of 5th switch exports winding with described second electrically connects, and described the The other end of five switches is electrically connected by the described 6th switch with the tail end of the described second output winding.It is described 5th switch it is another Head end of the one end also with the described first output winding electrically connects, and the head end of the second output winding is additionally operable to be connected to load First end.

A kind of three-phase transformer and single-phase transformer that the utility model embodiment provides, the three-phase transformer include the One phase, the second phase and third phase.First phase includes the first primary side, the first secondary side, first switch, second switch, the Three switches, the 4th switch, the 5th switch and the 6th switch.First primary side and first secondary side coupling.One one Secondary side includes the first winding and the second winding.The head end of first winding is used for the first end for being electrically connected to power supply.Described The head end of one winding is also electrically connected by the first switch with the head end of second winding.It is described 3rd switch one end with The tail end electrical connection of second winding, the other end of the 3rd switch pass through the second switch and second winding Head end electrically connects, and tail end of the described 3rd other end switched also with first winding electrically connects.It is each by open or close Switch, so that each self-corresponding windings in series, realizes that the three-phase transformer is run with a quarter of the first capacity, reduce institute State the open circuit loss of three-phase transformer.

Brief description of the drawings

, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.

Fig. 1 is the structure chart for the first three-phase transformer that the utility model first embodiment provides；

Fig. 2 is the structure chart for second of three-phase transformer that the utility model first embodiment provides；

Fig. 3 is the structure chart for the third three-phase transformer that the utility model first embodiment provides；

Fig. 4 is the structure chart for the 4th kind of three-phase transformer that the utility model first embodiment provides；

Fig. 5 is the structure chart for the first single-phase transformer that the utility model second embodiment provides；

Fig. 6 is the structure chart for second of single-phase transformer that the utility model second embodiment provides；

Fig. 7 is the structure chart for the third single-phase transformer that the utility model second embodiment provides；

Fig. 8 is the structure chart for the 4th kind of single-phase transformer that the utility model second embodiment provides.

In figure：200- three-phase transformers；100- single-phase transformers.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be configured to arrange and design with a variety of.

Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.Of the present utility model , it is necessary to which explanation, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description in description, and it is not intended that instruction Or imply relative importance.

In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set Put ", " electrical connection " should be interpreted broadly, for example, it may be fixed electrical connection or detachable electrical connection, or integratedly Electrical connection；Can be machinery electrical connection or electricity electrical connection；Can be joined directly together, can also be by between intermediary Connect connected, can be the connection of two element internals.For the ordinary skill in the art, can be understood with concrete condition Concrete meaning of the above-mentioned term in the utility model.

First embodiment

A kind of three-phase transformer 200 is provided referring to Fig. 1, originally implementing, the three-phase transformer 200 includes first Phase, the second phase and third phase.First phase include the first primary side, the first secondary side, first switch K1, second switch K2, 3rd switch K3, the 4th switch K4, the 5th switch K5 and the 6th switch K6.First primary side and the first secondary side coupling Close.First primary side includes the first winding L1 and the second winding L2.The head end of the first winding L1 is used to be electrically connected to power supply First end.For example, the first end of power supply can be A ends.The head end of the first winding L1 also passes through the first switch K1 Electrically connected with the head end of the second winding L2.One end of the 3rd switch K3 and the tail end of the second winding L2 are electrically connected Connect, the other end of the 3rd switch K3 is electrically connected by the second switch K2 with the head end of the second winding L2, described Tail end of the 3rd switch K3 other end also with the first winding L1 electrically connects.

First secondary side includes the first output winding L3 and the second output winding L4.The first output winding L3's Tail end electrically connects with zero phase line n, and the tail end of the first output winding L3 is also defeated by the described 4th switch L4 and described second Go out winding L4 tail end electrical connection.One end of the 5th switch K5 electrically connects with the described second output winding L4 head end, institute The other end for stating the 5th switch K5 is electrically connected by the described 6th switch K6 with the described second output winding L4 tail end.Described Head end of the five switch K5 other end also with the described first output winding L3 electrically connects, and the head end of the second output winding L4 is also For being connected to the first end of load.For example, the first end of load can be a ends.

Second phase include the second primary side, the second secondary side, the 7th switch K7, the 8th switch K8, the 9th switch K9, Tenth switch K10, the 11st switch K11 and the 12nd switch K12.Second primary side and second secondary side coupling. Second primary side includes tertiary winding L5 and the 4th winding L6.The head end of the tertiary winding L5 is used to be electrically connected to the of power supply Two ends.For example, the second end of power supply can be B ends.The head end of the tertiary winding L5 also passes through the described 7th switch K7 and institute State the 4th winding L6 head end electrical connection.One end of the 9th switch K9 electrically connects with the tail end of the 4th winding L6, institute The other end for stating the 9th switch K9 is electrically connected by the described 8th switch K8 with the head end of the 4th winding L6.Described 9th opens Tail end of the K9 other end also with the tertiary winding L5 is closed to electrically connect.

Second secondary side includes the 3rd output winding L7 and the 4th output winding L8.The 3rd output winding L7's Tail end electrically connects with the zero phase line n, and the tail end of the 3rd output winding L7 also passes through the described tenth switch K10 and described the Four output winding L8 tail end electrical connection.One end of the 11st switch K11 and the described 4th output winding L8 head end electricity Connection, the other end of the 11st switch K11 pass through the described 12nd switch K12 and the described 4th head end for exporting winding L8 Electrical connection.Tail end of the other end of the 11st switch K11 also with the described 3rd output winding L7 electrically connects.Described 4th is defeated The head end for going out winding L8 is additionally operable to be connected to the second end of load.For example, the second end of load can be b ends.

The third phase includes the 3rd primary side, the 3rd secondary side, the 13rd switch K13, the 14th switch K14, the tenth Five switch K15, sixteenmo close K16, the 17th switch K17 and eighteenmo and close K18.3rd primary side and the described 3rd Secondary side couples.3rd primary side includes the 5th winding L9 and the 6th winding L10.The head end of the 5th winding L9 is used to be electrically connected It is connected to the 3rd end of power supply.For example, the 3rd end of power supply can be C-terminal.The head end of the 5th winding L9 also passes through described 13 switch K13 electrically connect with the head end of the 6th winding L10.It is described 15th switch K15 one end with the described 6th around Group L10 tail end electrical connection, it is described 15th switch K15 the other end by the described 14th switch K14 with the described 6th around Group L10 head end electrical connection.Tail end of the other end of the 15th switch K15 also with the 5th winding L9 electrically connects.

3rd secondary side includes the 5th output winding L11 and the 6th output winding L12.The 5th output winding L11 tail end electrically connects with the zero phase line n, and the tail end of the 5th output winding L11 also closes K16 by the sixteenmo Electrically connected with the described 6th output winding L12 tail end.One end of the 17th switch K17 and the described 6th output winding L12 head end electrical connection, the other end of the 17th switch K17 close K18 and the described 6th output by the eighteenmo Winding L12 head end electrical connection.Tail end electricity of the other end of the 17th switch K17 also with the described 5th output winding L11 Connection, the head end of the 6th output winding L12 are additionally operable to be connected to the 3rd end of load.For example, the 3rd end of load is negative The c ends of load.

Also the tail end with the 6th winding L10, the 15th switch K15 are electric respectively for the head end of the first winding L1 Connection.Also the tail end with the second winding L2, the 3rd switch K3 are electrically connected the head end of the tertiary winding L5 respectively.Institute Stating the head end of the 5th winding 9, also the tail end with the 4th winding L6, the 9th switch K9 are electrically connected respectively.First switch K1 It is capacitance switch to close K18 to eighteenmo, sets first switch K1 to close being opened or closed for K18 to eighteenmo so that each Winding is realized in series or in parallel with corresponding winding, and three-phase transformer 200 is run with different capabilities.

It should be noted that the three-phase transformer 200 can also include core body, the first winding L1, the second winding L2, the first output winding L3, the second output winding L4, the tertiary winding L5, the 4th winding L6, the 3rd output winding L7, the Four output winding L8, the 5th winding L9, the 6th winding L10, the 5th output winding L11 and the 6th output winding L12 are around in described Outside core body, and it can be made up of the winding of the consistent number of turn identical electromagnetic wire of one section of line gauge or paper tinsel coiling.

As a kind of embodiment, N number of first tap is provided between the head end and tail end of the first winding L1.N It can be set according to real needs, can be 3, such as x1, x2, x3 in Fig. 1.Second winding head end and tail end it Between be provided with N number of second tap.N can be set according to real needs, can be 3, such as x4, x5, x6 in Fig. 1.Described One phase also includes the 19th switches set K19 and the 20th switches set K20.One end of the 19th switches set K19 with it is described N number of First tap electrical connection in first tap, the other end of the 19th switches set K19 pass sequentially through the described 3rd and opened Close K3, the 20th switches set K20 is connected with second tap in N number of second tap.19th switch Group K19 includes main 19th switch K19a and pair the 19th switchs K19b.One end that pair the 19th switchs K19b is connected to the 3rd K3 is switched, main 19th switch K19a and pair the 19th switch K19b and be combined, and gating is connected to first tap.It is described 20th switches set K20 includes main 20th switch K20a and pair the 20th switchs K20b.Main 20th switch K20a one end It is connected to the 3rd switch K3, main 20th switch K20a and the 20th switch K20b to be combined, gating is connected to one second Tap.Main 19th switch K19a, the switch of pair the 19th K19b, the 20th switch K20a and pair the 20th switch K20b and joined Action, the first tap and the second tap are gated, so as to realize the adjustment of the voltage to the first primary side, the first secondary side.

N number of 3rd tap is provided between the head end and tail end of the tertiary winding.In the head end of the 4th winding N number of 4th tap is provided between tail end.Similarly, N can be set according to real needs, can be 3, as the x7 in Fig. 1, x8、x9、x10、x11、x12.Second phase also includes the 21st switches set K21 and the 22nd switches set K22.Described 21 switches set K21 one end electrically connects with the 3rd tap in N number of 3rd tap, the 21st switch The group K21 other end is passed sequentially through in the 9th switch K9, the 22nd switches set K22 and N number of 4th tap The 4th tap electrical connection.The 21st switches set K21 includes main 21st switch K21a and pair the 21st Switch K21b.One end that pair the 21st switchs K21b is connected to the 9th switch K9, main 21st switch K21a and pair second 11 switch K21b are combined, and gating is connected to the 3rd tap.The 22nd switches set K22 includes the main 20th Two switch K22a and pair the 22nd switch K22b.Main 22nd switch K22a one end is connected to the 9th switch K9, and main the 22 switch K22a and the 22nd switch K22b are combined, and gating is connected to the 4th tap.Main 21st opens Close K21a, pair the 21st switchs K21b, the 22nd switch K22a and pair the 22nd switch K22b and carry out linkage action, choosing Logical 3rd tap and the 4th tap, so as to realize the adjustment of the voltage to the second primary side, the second secondary side.

N number of 5th tap is provided between the head end and tail end of the 5th winding.In the head end of the 6th winding N number of 6th tap is provided between tail end.Similarly, N can be set according to real needs, can be 3, in Fig. 1 x13、x14、x15、x16、x17、x18.The third phase also includes the 23rd switches set K23 and the 24th switches set K24. One end of the 23rd switches set K23 electrically connects with the 5th tap in N number of 5th tap, and the described 20th The three switches set K23 other end passes sequentially through the 15th switch K15, the 24th switches set K24 and described N number of the The 6th tap electrical connection in six taps.

The 23rd switches set K23 includes main 23rd switch K23a and pair the 23rd switchs K23b.Secondary the 23 switch K23b one end is connected to the 15th switch K15, and main 23rd switch K23a and pair the 23rd switch K23b is combined, and gating is connected to the 5th tap.The 24th switches set K24 includes main 24th switch K24a and pair the 24th switch K24b.Main 24th switch K24a one end is connected to the 15th switch K15, master the 20th Four switch K24a and the 24th switch K24b are combined, and gating is connected to the 6th tap.Main 23rd switch K23a, pair the 23rd switch K23b, the 24th switch K24a and the switch of pair the 24th K24b carries out linkage action, gating 5th tap and the 6th tap, so as to realize the adjustment of the voltage to the 3rd primary side, the 3rd secondary side.

First phase also includes the 25th switch K25 and the second sixteenmo closes K26.The one of the 25th switch K25 End electrically connect with the head end of the first winding L1, and the described 25th switchs the K25 other end for being connected to the of power supply One end A.One end that second sixteenmo closes K26 electrically connects with the described second output winding L4 head end, and the described 26th The switch K26 other end is used for the first end a for being connected to load.Second phase also includes the 27th switch K27 and second Eighteenmo closes K28.One end of the 27th switch K27 electrically connects with the head end of the tertiary winding L5, and the described 20th The seven switch K27 other end is used for the second end B for being connected to power supply.Second eighteenmo closes K27 one end and the described 4th Winding L6 head end electrical connection is exported, the other end that second eighteenmo closes K28 is used for the second end b for being connected to load.Institute Stating third phase also includes the 29th switch K29 and the 30th switch K30.It is described 29th switch K29 one end with it is described 5th winding L9 head end electrical connection, the other end of the 29th switch K29 are used for the 3rd end C for being connected to power supply.Institute The one end for stating the 30th switch K30 electrically connects with the described 6th output winding L12 head end, and the 30th switch K30's is another One end is used for the 3rd end c for being connected to load.25th switch K25, the second sixteenmo close K26, the 27th switch K27, It can be vacuum switch that second eighteenmo, which closes K28, the 29th switch K29 and the 30th switch K30,.

Referring to Fig. 2, in order to realize the simplicity of pressure regulation, the first phase also includes the 7th winding L7 and the 31st switches set. The head end of the 7th winding L13 electrically connects with the tail end of the second winding L2, the head end and tail end of the 7th winding L13 Between be provided with N number of 7th tap.N can be set according to real needs, can be 3, such as the x4 ' in Fig. 2, x5 ', x6 '.Institute The one end for stating the 31st switches set is electrically connected to the 7th tap in N number of 7th tap, and the described 31st opens The other end of pass group electrically connects with the head end of the tertiary winding L5.31st switches set includes main 31st switch K31a and pair the 31st switch K31b.Main 31st switch K31a one end and the head end of the tertiary winding L5 are electrically connected Connect, main 31st switch K31a and pair the 31st switch K31b and be combined, and gating is connected to the 7th tap.Main the 31 switch K31a, pair the 31st switch K31b and carry out linkage action, gate the 7th tap, so as to realize to the first two times The adjustment of the voltage of side.

Such as first winding L1 and the second winding L2 be 9500 circles, each switch is turned off or closed, the first winding L1 and the second winding L2 serial or parallel connections, the 7th winding L13 are 1000 circles, and now pressure regulation only needs one group of pressure regulation tap selection to open Put capable operation into, Large Copacity is by adjustable high pressure tapping range ± 5% of tap, adjustable -5%, -2.5%, 0% during low capacity, also Fixed when can make low capacity and adjust tap to 0%, automatic Regulation during Large Copacity.

Second phase also includes the 8th winding L14 and thirty-twomo pass group.The head end of the 8th winding L14 and institute The 4th winding L6 tail end electrical connection is stated, N number of 8th tap is provided between the head end and tail end of the 8th winding L14.N can It can be 3, such as the x10 ' in Fig. 2, x11 ', x12 ' to be set according to real needs.One end of the thirty-twomo pass group The 8th tap being electrically connected in N number of 8th tap, the other end and the described 5th of the thirty-twomo pass group Winding L9 head end electrical connection.

The thirty-twomo pass group includes main thirty-twomo pass K32a and secondary thirty-twomo closes K32b.Main 30th Two switch K32a one end electrically connects with the head end of the 5th winding L9, and main thirty-twomo closes K32a and secondary thirty-twomo Close K32b to be combined, gating is connected to the 8th tap.Main thirty-twomo closes K32a, secondary thirty-twomo closes K32b and entered Row linkage action, the 8th tap is gated, so as to realize the adjustment of the voltage to the second secondary side.

The third phase also includes the 9th winding L15 and the 33rd switches set.The head end of the 9th winding L15 and institute The 6th winding L10 tail end electrical connection is stated, N number of 9th tap is provided between the head end and tail end of the 9th winding L15.N It can be set according to real needs, can be 3, such as the x16 ' in Fig. 2, x17 ', x18 '.The one of 33rd switches set End is electrically connected to the 9th tap in N number of 9th tap, the other end of the 33rd switches set and described the One winding L1 head end electrical connection.

33rd switches set includes main 33rd switch K33a and pair the 33rd switchs K33b.Main 30th Three switch K33a one end is electrically connected with the head end of the first winding L1, and main 33rd switch K33a and pair the 33rd are opened Close K33b to be combined, gating is connected to the 9th tap.Main 33rd switch K33a, pair the 33rd switch K33b and entered Row linkage action, the 9th tap is gated, so as to realize the adjustment of the voltage to the 3rd secondary side.

As a kind of embodiment, referring to Fig. 2, each member in the first primary side, the second secondary side and the 3rd secondary side Part annexation is as shown in Figure 2.The tail end of the first output winding L3 passes through the described 4th switch L4 and the described second output Winding L4 tail end electrical connection.The tail end of the second output winding L4 also electrically connects with zero phase line n.The 5th switch K5's One end electrically connects with the described second output winding L4 head end, and the other end of the 5th switch K5 passes through the described 6th switch K6 Electrically connected with the described second output winding L4 tail end.The other end of the 5th switch K5 also exports winding L3 with described first Head end electrical connection, the head end of the first output winding L3 is additionally operable to be connected to the of load by second sixteenmo connection One end.For example, the first end of load can be a ends.The another kind in the second secondary side and the 3rd secondary side can similarly be obtained Each element annexation, as shown in Fig. 2 it is succinct in order to describe, repeat no more here.

Referring to Fig. 3, three-phase transformer 200 also includes transition transformer module.The input of the transition transformer module The first end A, the second end B and the 3rd end C for being connected to the power supply are held, the output end of the transition transformer module is used for It is connected to the first end a, the second end b and the 3rd end c of load.The transition transformer module is used to ensure the three-phase transformer Capacity transfer or pressure regulation process do not power off.

Further, transition transformer module includes transition transformer T1, the 34th switch K34, the 35th switch K35, the 3rd sixteenmo close K36, the 37th switch K37, the 3rd eighteenmo and close the switches of K38 and the 39th K39.The transition The first end A that transformer T1 on high-tension side first end is used to be connected to power supply by the described 34th switch K34.The mistake Cross the first end a that the first end of transformer T1 low-pressure side is used to be connected to load by the described 35th switch K35.It is described Transition transformer T1 on high-tension side second end second end Bs of the K36 for being connected to power supply is closed by the 3rd sixteenmo.Institute State the second end b that the second end of transition transformer T1 low-pressure side is used to be connected to load by the described 37th switch K37. On high-tension side 3rd end of the transition transformer T1 threeth ends of the K38 for being connected to power supply is closed by the 3rd eighteenmo C.3rd end of the low-pressure side of the transition transformer T1 is used to be connected to the 3rd of load by the described 39th switch K39 Hold c.

When three-phase transformer 200 carries out capacity transfer or during pressure regulation, the switch of closure the 34th K34, the 35th switch K35, 3rd sixteenmo closes K36, the 37th switch K37, the 3rd eighteenmo and closes the switch K39 of K38 and the 39th, connects the transition Transformer T1 so that in capacity transfer, pressure regulation operation, load powered by transition transformer T1.After capacity transfer or pressure regulation terminate, the 3rd is disconnected 14 switch K34, the 35th switch K35, the 3rd sixteenmo close K36, the 37th switch K37, the 3rd eighteenmo close K38 and 39th switch K39, disconnects transition transformer T1, connects three-phase transformer 200.

34th switch K34, the 35th switch K35, the 3rd sixteenmo close K36, the 37th switch K37, the 3rd It can be vacuum switch that eighteenmo, which closes the switches of K38 and the 39th K39,.First switch K1 closes K18 capacity transfers to eighteenmo and opened Close and the 19th switches set K19 to the 24th switches set K24 in wait tap changer that common oil circuit breaker is set, realize that oil is interior without electricity Arc pollutes.

Referring to Fig. 4, first phase also includes first resistor module, second resistance module, 3rd resistor module and the Four resistive modules.The head end of the first winding L1 also passes through the first resistor module and the second winding L2 head end electricity Connection.The tail end of the first winding L1 is also electrically connected by the second resistance module and the described 3rd switch K3 other end Connect.The tail end of the second winding L2 is also electrically connected by the 3rd resistor module with the described 3rd switch K3 one end.Institute The head end for stating the first output winding L3 is also electrically connected by the 4th resistive module with the described second output winding L4 head end.

Referring to Fig. 4, second phase also includes the 5th resistive module, the 6th resistive module, the 7th resistive module and the Eight resistive modules.The head end of the tertiary winding L5 also passes through the 5th resistive module and the 4th winding L6 head end electricity Connection.The tail end of the tertiary winding L5 is also electrically connected by the 6th resistive module and the described 9th switch K9 other end Connect.The tail end of the 4th winding L6 is also electrically connected by the 7th resistive module with the described 9th switch K9 one end.Institute The head end for stating the 3rd output winding L7 is also electrically connected by the 8th resistive module with the described 4th output winding L8 head end. The third phase also includes the 9th resistive module, the tenth resistive module, the 11st resistive module and the 12nd resistive module.It is described 5th winding L9 head end is also electrically connected by the 9th resistance with the head end of the 6th winding L10.5th winding L9 tail end is also electrically connected by the tenth resistive module with the described 15th switch K15 other end.6th winding L10 tail end is also electrically connected by the 11st resistive module with the described 15th switch K15 one end.5th output Winding L11 head end is also electrically connected by the 12nd resistive module with the described 6th output winding L12 head end.Described One resistive module, second resistance mould, 3rd resistor module, the 4th resistive module, the 5th resistive module, the 6th resistive module, Seven resistive modules, the 8th resistive module, the 9th resistive module, the tenth resistive module, the 11st resistive module and the 12nd resistance Module is used to ensure that the band load of the capacity transfer process of three-phase transformer 200 or pressure regulation process does not power off.

Further, first resistor module includes the switches of first resistor R1 and the 40th K40.The head of the first winding L1 End passes sequentially through the described 40th and opens that K40 is closed, the first resistor R1 electrically connects with the head end of the second winding L2.Described Two resistive modules include the switches of second resistance R2 and the 41st K41.The tail end of the first winding L1 also passes sequentially through described 41st switch K41, the second resistance R2 electrically connect with the described 3rd switch K3 other end.The 3rd resistor module Including the switches of 3rd resistor R3 and the 42nd K42.The tail end of the second winding L2 also passes sequentially through the described 42nd and opened One end that K42, the 3rd resistor R3 are closed with the described 3rd switch K3 electrically connects.4th resistive module includes the 4th resistance The switches of R4 and the 43rd K43.The head end of the first output winding L3 also passes sequentially through the 43rd switch K43, the Four resistance R4 electrically connect with the described second output winding L4 head end.

5th resistive module includes the switches of the 5th resistance R5 and the 44th K44.The head end of the tertiary winding L5 Pass sequentially through the 44th switch K44, the 5th resistance R5 electrically connects with the head end of the 4th winding L6.Described Six resistive modules include the switches of the 6th resistance R6 and the 45th K45.The tail end of the tertiary winding L5 also passes sequentially through described 45th switch K45, the 6th resistance R6 electrically connect with the described 9th switch K9 other end.7th resistive module K46 is closed including the 7th resistance R7 and the 4th sixteenmo.The tail end of the 4th winding L6 also passes sequentially through the 4th sixteenmo One end that K46, the 7th resistance R7 are closed with the described 9th switch K9 electrically connects.8th resistive module includes the 8th resistance The switches of R8 and the 47th K47.The head end of the 3rd output winding L7 also passes sequentially through the 47th switch K47, the Eight resistance R8 electrically connect with the described 4th output winding L8 head end.

9th resistive module includes the 9th resistance R9 and the 4th eighteenmo closes K48.The head end of the 5th winding L9 Pass sequentially through the 4th eighteenmo pass K48, the 9th resistance R9 electrically connects with the head end of the 6th winding L10.It is described Tenth resistive module includes the switches of the tenth resistance R10 and the 49th R49.The tail end of the 5th winding L9 also passes sequentially through institute The other end that the 49th switch K49, the tenth resistance R10 are stated with the described 15th switch K15 electrically connects.Described 11st Resistive module includes the switches of the 11st resistance R11 and the 50th K50.The tail end of the 6th winding L10 also passes sequentially through described 50th switch K50, the 11st resistance R11 electrically connect with the described 15th switch K15 one end.12nd resistance Module includes the switches of the 12nd resistance R12 and the 51st K51.The head end of the 5th output winding L11 also passes sequentially through institute The head end that the 51st switch K51, the 12nd resistance R12 are stated with the described 4th output winding L12 electrically connects.

When three-phase transformer 200 carries out capacity transfer or pressure regulation, capacity transfer or pressure regulation transition resistance close first resistor R12 and arrived 12nd resistance R12 connects circuit when its fling-cut switch is put into, and makes three-phase transformer 200 in capacity transfer process or pressure regulation process In, remain that the loop that transition resistance is connected is powered so as to realize that the band of capacity transfer process load does not power off, having reached has load Effect.After capacity transfer or pressure regulation terminate, transition resistance first resistor R12 is disconnected to each self-corresponding switches of the 12nd resistance R12.The One resistance R12 to the 12nd resistance R12 can be vacuum switch, it is ensured that without electric arc during conversion, be not carbonized pollution transformer oil.

A kind of operation principle for three-phase transformer 200 that the utility model embodiment provides is as follows：

Associated switch carries out combined operation, disconnects the first switch K1, the 3rd switch K3, the described 4th opens Close K4, the 5th switch K5, the 7th switch K7, the 9th switch K9, the tenth switch K10, the described 11st Switch K11, the 13rd switch K13, the 15th switch K15, the sixteenmo and close K16 and the 17th switch K17, it is closed at the second switch K2, the 6th switch K6, the 8th switch K8, the 12nd switch K12, institute State the 14th switch K14 and the eighteenmo closes K18, so that the first winding L1 and the second winding L2 series connection, institute The first output winding L3 and the second output winding L4 series connection are stated, tertiary winding L5 and the 4th winding the L6 series connection is described 3rd output winding L7 and the 4th output winding L8 series connection, the 5th winding L9 and the 6th winding L10 series connection, institute The 5th output winding L11 and the 6th output winding L12 series connection are stated, realizes the three-phase transformer 200 with the first capacity A quarter, i.e. the second capacity are run, and reduce the open circuit loss of the three-phase transformer 200.

Associated switch carries out combined operation, closes the first switch K1, the 3rd switch K3, the described 4th opens Close K4, the 5th switch K5, the 7th switch K7, the 9th switch K9, the tenth switch K10, the described 11st Switch K11, the 13rd switch K13, the 15th switch K15, the sixteenmo and close K16 and the 17th switch K17, simultaneously switch off the second switch K2, the 6th switch K6, the 8th switch K8, the 12nd switch K12, institute State the 14th switch K14 and the eighteenmo closes K18, so that the first winding L1 and the second winding L2 is in parallel, institute State the first output winding L3 and the second output winding L4 is in parallel, the tertiary winding L5 and the 4th winding L6 are in parallel, described 3rd output winding L7 and the 4th output winding L8 are in parallel, and the 5th winding L9 and the 6th winding L10 are in parallel, institute State the 5th output winding L11 and the 6th output winding L12 is in parallel, realize that the three-phase transformer 200 is transported with the first capacity OK.It is possible thereby to the rated current for knowing the winding of the low capacity of three-phase transformer 200 (i.e. the second capacity) is Large Copacity (i.e. first Capacity) rated current 1/4, low capacity umber of turn is 2 times of Large Copacity umber of turn.Winding used during large and small capacity Overall dimensions are identical, and the size of iron core is identical, can be drawn by transformer parameter calculation formula and transformer standard, transformer After being adjusted to low capacity by Large Copacity, parameter when small capacity transformer parameter complies fully with a quarter capacity of Large Copacity is wanted Ask.The a quarter when capacity of three-phase transformer 200 during low capacity is Large Copacity.

It is apparent to those skilled in the art that for convenience and simplicity of description, the three-phase of foregoing description The specific work process of transformer 200, the corresponding process in the foregoing embodiment of three-phase transformer 200 is may be referred to, herein no longer Repeat.

A kind of three-phase transformer 200 that the utility model embodiment provides, by disconnecting the first switch K1, described 3rd switch K3, the 4th switch K4, the 5th switch K5, the 7th switch K7, the 9th switch K9, described the Ten switch K10, the 11st switch K11, the 13rd switch K13, the 15th switch K15, the sixteenmo K16 and the 17th switch K17 are closed, is closed at the second switch K2, the 6th switch K6, the 8th switch K8, the 12nd switch K12, the 14th switch K14 and the eighteenmo close K18, so that the first winding L1 Connected with the second winding L2, the first output winding L3 and the second output winding L4 series connection, the tertiary winding L5 and the 4th winding L6 series connection, the 3rd output winding L7 and the 4th output winding L8 series connection, the 5th winding L9 Connected with the 6th winding L10, the 5th output winding L11 and the 6th output winding L12 series connection, realize described three Phase transformer 200 is run with the first capacity, reduces the open circuit loss of the three-phase transformer, is needed suitable for different actual electricity consumptions Ask.

Referring to Fig. 5, present embodiments provide a kind of single-phase transformer 100, including the first primary side, the first secondary side, First switch K1, second switch K2, the 3rd switch K3, the 4th switch K4, the 5th switch K5 and the 6th switch K6.Described 1st Secondary side and first secondary side coupling.First primary side includes the first winding L1 and the second winding L2.The first winding L1 Head end be used to be electrically connected to the first end of power supply.For example, the first end of power supply can be A ends.The head of the first winding L1 End is also electrically connected by the first switch K1 with the head end of the second winding L2.It is described 3rd switch K3 one end with it is described Second winding L2 tail end electrical connection, the other end of the 3rd switch K3 pass through the second switch K2 and second winding L2 head end electrical connection, the described 3rd, which switchs tail end of the K3 other end also with the first winding L1, electrically connects.

It is understood that each phase of three-phase transformer 200 can be separately provided as a single-phase transformer 100, As shown in Fig. 6, Fig. 7 and Fig. 8, similar part, the content of foregoing three-phase transformer 200 is refer to, is repeated no more here.

It is apparent to those skilled in the art that for convenience and simplicity of description, foregoing description it is single-phase The specific work process of transformer 100, the corresponding process in the foregoing embodiment of three-phase transformer 200 is may be referred to, herein no longer Repeat.

The utility model embodiment provides a kind of control method of transformer, applied to above-mentioned three-phase transformer 200, Method includes：Disconnect the first switch K1, the 3rd switch K3, the 4th switch K4, the 5th switch K5, described 7th switch K7, the 9th switch K9, the tenth switch K10, the 11st switch K11, the 13rd switch K13, the 15th switch K15, the sixteenmo close K16 and the 17th switch K17, are closed at described second and open Close K2, the 6th switch K6, the 8th switch K8, the 12nd switch K12, the 14th switch K14 and described Eighteenmo closes K18, so that the first winding L1 and the second winding L2 series connection, the first output winding L3 and described Second output winding L4 series connection, tertiary winding L5 and the 4th winding the L6 series connection, the 3rd output winding L7 and described the Four output winding L8 series connection, the 5th winding L9 and the 6th winding L10 series connection, the 5th output winding L11 and institute The 6th output winding L12 series connection is stated, realizes the three-phase transformer 200 with a quarter of the first capacity, i.e. the second capacity fortune OK, the open circuit loss of the three-phase transformer 200 is reduced.

Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims

1. a kind of three-phase transformer, it is characterised in that the three-phase transformer includes the first phase, the second phase and third phase, described First phase includes the first primary side, the first secondary side, first switch, second switch, third switch, the 4th switch, the 5th switch With the 6th switch, first primary side and first secondary side coupling, the first primary side include the first winding and second around Group, the head end of first winding are used for the first end for being electrically connected to power supply, and the head end of first winding also passes through described the One switch electrically connects with the head end of second winding, and one end of the 3rd switch and the tail end of second winding are electrically connected Connect, the other end of the 3rd switch is electrically connected by the second switch with the head end of second winding, and the described 3rd opens Tail end of the other end of pass also with first winding electrically connects；

First secondary side includes the first output winding and the second output winding, the tail end and zero phase of the first output winding Line is electrically connected, and the tail end of the first output winding is also electrically connected by the tail end of the described 4th switch and the described second output winding Connect, one end of the 5th switch electrically connects with the head end of the described second output winding, and the other end of the 5th switch passes through 6th switch electrically connects with the tail end of the described second output winding, and the other end of the 5th switch is also defeated with described first Go out the head end electrical connection of winding, the head end of the second output winding is additionally operable to be connected to the first end of load；

Second phase include the second primary side, the second secondary side, the 7th switch, the 8th switch, the 9th switch, the tenth switch, 11st switch and the 12nd switch, second primary side and second secondary side coupling, the second primary side include the 3rd Winding and the 4th winding, the head end of the tertiary winding are used for the second end for being electrically connected to power supply, the head end of the tertiary winding Also electrically connected by the described 7th switch with the head end of the 4th winding, one end of the 9th switch and the 4th winding Tail end electrical connection, the other end of the 9th switch electrically connected with the head end of the 4th winding by the described 8th switch, Tail end of the other end of 9th switch also with the tertiary winding electrically connects；

Second secondary side include the 3rd output winding and the 4th output winding, it is described 3rd output winding tail end with it is described Zero phase line electrically connects, and the tail end of the 3rd output winding also passes through the tail end of the described tenth switch and the described 4th output winding Electrical connection, it is described 11st switch one end with the described 4th output winding head end electrically connect, it is described 11st switch it is another One end is electrically connected by the described 12nd switch with the head end of the described 4th output winding, and the other end of the 11st switch is also Electrically connected with the tail end of the described 3rd output winding, the head end of the 4th output winding is additionally operable to be connected to the second of load End；

The third phase includes the 3rd primary side, the 3rd secondary side, the 13rd switch, the 14th switch, the 15th switch, the tenth Six switches, the 17th switch and eighteenmo close, the 3rd primary side and the 3rd secondary side coupling, the 3rd primary side bag The 5th winding and the 6th winding are included, the head end of the 5th winding is used for the 3rd end for being electrically connected to power supply, the 5th winding Head end also electrically connected by the described 13rd switch with the head end of the 6th winding, the described 15th one end switched and institute The tail end electrical connection of the 6th winding is stated, the other end of the 15th switch passes through the described 14th switch and the 6th winding Head end electrical connection, tail end of the other end also with the 5th winding of the 15th switch electrically connect；

3rd secondary side include the 5th output winding and the 6th output winding, it is described 5th output winding tail end with it is described Zero phase line electrically connects, and the tail end of the 5th output winding also closes the tail with the described 6th output winding by the sixteenmo End electrical connection, one end of the 17th switch electrically connect with the head end of the described 6th output winding, the 17th switch The other end is closed by the eighteenmo and electrically connected with the head end of the described 6th output winding, the other end of the 17th switch Tail end also with the described 5th output winding electrically connects, and the head end of the 6th output winding is additionally operable to be connected to the 3rd of load End；

Also the tail end with the 6th winding, the 15th switch electrically connect the head end of first winding respectively, and described the Also the tail end with second winding, the 3rd switch electrically connect three-winding head end respectively, the head end of the 5th winding Also the tail end with the 4th winding, the 9th switch electrically connect respectively.

2. three-phase transformer according to claim 1, it is characterised in that between the head end and tail end of first winding N number of first tap is provided with, N number of second tap, first phase are provided between the head end and tail end of second winding Also include the 19th switches set and the 20th switches set, one end of the 19th switches set with N number of first tap One the first tap electrical connection, the other end of the 19th switches set pass sequentially through the 3rd switch, the described 20th opened Second tap connection in N number of second tap described in Guan Zuyu；Set between the head end and tail end of the tertiary winding There is N number of 3rd tap, N number of 4th tap is provided between the head end and tail end of the 4th winding, second phase is also wrapped Include the 21st switches set and the 22nd switches set, one end of the 21st switches set with N number of 3rd tap The 3rd tap electrical connection, the other end of the 21st switches set passes sequentially through the 9th switch, described second 12 switches sets electrically connect with the 4th tap in N number of 4th tap, in the head end and tail end of the 5th winding Between be provided with N number of 5th tap, be provided with N number of 6th tap between the head end and tail end of the 6th winding, described Three-phase also includes the 23rd switches set and the 24th switches set, one end of the 23rd switches set and described N number of the The 5th tap electrical connection in five taps, the other end of the 23rd switches set pass sequentially through the described 15th and opened Close, the 24th switches set electrically connects with the 6th tap in N number of 6th tap.

3. three-phase transformer according to claim 1, it is characterised in that first phase also include the 25th switch and Second sixteenmo closes, and one end of the 25th switch electrically connects with the head end of first winding, and the described 25th opens The other end of pass is used for the first end for being connected to power supply, one end that second sixteenmo closes and the head of the described second output winding End electrical connection, the other end that second sixteenmo closes are used for the first end for being connected to load；Second phase also includes second 17 switches and the second eighteenmo close, and one end of the 27th switch electrically connects with the head end of the tertiary winding, described The other end of 27th switch is used for the second end for being connected to power supply, and one end and the described 4th that second eighteenmo closes are defeated Go out the head end electrical connection of winding, the other end that second eighteenmo closes is used for the second end for being connected to load；

The third phase also includes the 29th switch and the 30th switch, one end and the described 5th of the 29th switch The head end electrical connection of winding, the other end of the 29th switch are used for the 3rd end for being connected to power supply, and the described 30th opens One end of pass electrically connects with the head end of the described 6th output winding, and the other end of the 30th switch is used to be connected to load 3rd end.

4. three-phase transformer according to claim 3, it is characterised in that the described 25th switchs, the second sixteenmo closes, 27th switch, the second eighteenmo close, the 29th switch and the 30th switch are vacuum switch.

5. three-phase transformer according to claim 1, it is characterised in that first phase also includes the 7th winding and the 3rd 11 switches sets, the head end of the 7th winding electrically connect with the tail end of second winding, the head end of the 7th winding with N number of 7th tap is provided between tail end, one end of the 31st switches set is electrically connected in N number of 7th tap One the 7th tap, the other end of the 31st switches set electrically connect with the head end of the tertiary winding, second phase Also including the 8th winding and thirty-twomo pass group, the head end of the 8th winding electrically connects with the tail end of the 4th winding, N number of 8th tap, one end electrical connection of the thirty-twomo pass group are provided between the head end and tail end of 8th winding The 8th tap in N number of 8th tap, the other end and the 5th winding of the thirty-twomo pass group Head end electrically connects, and the third phase also includes the 9th winding and the 33rd switches set, the head end of the 9th winding with it is described The tail end electrical connection of 6th winding, is provided with N number of 9th tap between the head end and tail end of the 9th winding, and the described 30th One end of three switches sets is electrically connected to the 9th tap in N number of 9th tap, the 33rd switches set it is another One end electrically connects with the head end of first winding.

6. three-phase transformer according to claim 1, it is characterised in that the three-phase transformer also includes transition transformer Module, the input of the transition transformer module is used for first end, the second end and the 3rd end for being connected to the power supply, described The output end of transition transformer module is used for first end, the second end and the 3rd end for being connected to load, the transition transformer mould Block is used to ensure not powering off for the three-phase transformer capacity transfer or pressure regulation process.

7. three-phase transformer according to claim 6, it is characterised in that the transition transformer module includes transition transformation Device, the 34th switch, the 35th switch, the 3rd sixteenmo close, the 37th opens, the 3rd eighteenmo closes and the 39th opens To close, the on high-tension side first end of the transition transformer switchs first end for being connected to power supply by the described 34th, The first end of the low-pressure side of the transition transformer switchs first end for being connected to load by the described 35th, described The second end for being connected to power supply, the transition are closed by the 3rd sixteenmo on high-tension side second end of transition transformer Second end of the low-pressure side of transformer switchs the second end for being connected to load, the transition transformation by the described 37th The 3rd end for being connected to power supply is closed on high-tension side 3rd end of device by the 3rd eighteenmo, the transition transformer 3rd end of low-pressure side switchs the 3rd end for being connected to load by the described 39th.

8. three-phase transformer according to claim 1, it is characterised in that first phase also include first resistor module, Second resistance module, 3rd resistor module and the 4th resistive module, the head end of first winding also pass through the first resistor Module is electrically connected with the head end of second winding, and first winding is also opened by the second resistance module with the described 3rd The other end electrical connection of pass, the tail end of second winding also pass through the 3rd resistor module and one end of the described 3rd switch Electrical connection, the head end of the first output winding also pass through the 4th resistive module and the head end electricity of the described second output winding Connection；

Second phase also includes the 5th resistive module, the 6th resistive module, the 7th resistive module and the 8th resistive module, described The head end of the tertiary winding is also electrically connected by the 5th resistive module with the head end of the 4th winding, the tertiary winding Tail end is also electrically connected by the 6th resistive module with the other end of the described 9th switch, and the tail end of the 4th winding is also logical One end that the 7th resistive module is crossed with the described 9th switch electrically connects, and the head end of the 3rd output winding is also by described 8th resistive module electrically connects with the head end of the described 4th output winding；

The third phase also includes the 9th resistive module, the tenth resistive module, the 11st resistive module and the 12nd resistive module, The head end of 5th winding is also electrically connected by the 9th resistance with the head end of the 6th winding, the 5th winding Tail end is also electrically connected by the tenth resistive module with the other end of the described 15th switch, and the tail end of the 6th winding is also Electrically connected by the 11st resistive module with one end of the described 15th switch, the head end of the 5th output winding is also logical The head end that the 12nd resistive module is crossed with the described 6th output winding electrically connects；

The first resistor module, second resistance mould, 3rd resistor module, the 4th resistive module, the 5th resistive module, the 6th electricity Hinder module, the 7th resistive module, the 8th resistive module, the 9th resistive module, the tenth resistive module, the 11st resistive module and the 12 resistive modules are used to ensure that the band load of the three-phase transformer capacity transfer process or pressure regulation process does not power off.

9. three-phase transformer according to claim 8, it is characterised in that the first resistor module include first resistor and 40th switch, the head end of first winding pass sequentially through the 40th switch, the first resistor with described second around The head end electrical connection of group, the second resistance module include second resistance and the 41st switch, the tail end of first winding Also pass sequentially through it is described 41st switch, the second resistance with the described 3rd switch the other end electrically connect, the described 3rd Resistive module includes 3rd resistor and the 42nd switch, and the tail end of second winding also passes sequentially through the described 42nd and opened Pass, the 3rd resistor electrically connect with one end of the described 3rd switch, and the 4th resistive module includes the 4th resistance and the 4th 13 switches, the head end of the first output winding also pass sequentially through the 43rd switch, the 4th resistance and described second Export the head end electrical connection of winding；

5th resistive module includes the 5th resistance and the 44th switch, and the head end of the tertiary winding passes sequentially through described 44th switch, the 5th resistance electrically connect with the head end of the 4th winding, and the 6th resistive module includes the 6th Resistance and the 45th switch, the tail end of the tertiary winding also pass sequentially through the 45th switch, the 6th resistance Electrically connected with the other end of the described 9th switch, the 7th resistive module includes the 7th resistance and the 4th sixteenmo closes, described One end that the tail end of 4th winding also passes sequentially through the 4th sixteenmo pass, the 7th resistance and the described 9th switch is electrically connected Connect, the 8th resistive module includes the 8th resistance and the 47th switch, and the head end of the 3rd output winding also leads to successively Cross the 47th switch, the 8th resistance electrically connects with the head end of the described 4th output winding；

9th resistive module includes the 9th resistance and the 4th eighteenmo and closed, and the head end of the 5th winding passes sequentially through described 4th eighteenmo closes, the 9th resistance electrically connects with the head end of the 6th winding, and the tenth resistive module includes the tenth Resistance and the 49th switch, the tail end of the 5th winding also pass sequentially through the 49th switch, the tenth resistance Being electrically connected with the other end of the described 15th switch, the 11st resistive module includes the 11st resistance and the 50th switch, The tail end of 6th winding also passes sequentially through the 50th switch, the 11st resistance and the one of the described 15th switch End electrical connection, the 12nd resistive module include the 12nd resistance and the 51st switch, the head of the 5th output winding End also passes sequentially through the 51st switch, the 12nd resistance electrically connects with the head end of the described 4th output winding.

10. a kind of single-phase transformer, it is characterised in that the single-phase transformer includes the first primary side, the first secondary side, first Switch, second switch, the 3rd switch, the 4th switch, the 5th switch and the 6th switch, first primary side and the described 1st Secondary side coupling, the first primary side include the first winding and the second winding, and the head end of first winding is used to be electrically connected to power supply First end, the head end of first winding is also electrically connected by the first switch with the head end of second winding, described One end of 3rd switch electrically connects with the tail end of second winding, and the other end of the 3rd switch passes through the second switch Electrically connected with the head end of second winding, tail end of the described 3rd other end switched also with first winding electrically connects； First secondary side includes the first output winding and the second output winding, tail end and the zero phase line electricity of the first output winding Connection, the tail end of the first output winding are also electrically connected by the described 4th switch with the tail end of the described second output winding, One end of 5th switch electrically connects with the head end of the described second output winding, and the described 5th other end switched passes through described 6th switch with described second output winding tail end electrically connect, it is described 5th switch the other end also with described first export around The head end electrical connection of group, the head end of the second output winding are additionally operable to be connected to the first end of load.