CN1051642A - The alternating current machine stator coil type coil newly change connection - Google Patents
The alternating current machine stator coil type coil newly change connection Download PDFInfo
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- CN1051642A CN1051642A CN 89108530 CN89108530A CN1051642A CN 1051642 A CN1051642 A CN 1051642A CN 89108530 CN89108530 CN 89108530 CN 89108530 A CN89108530 A CN 89108530A CN 1051642 A CN1051642 A CN 1051642A
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- alternating current
- current machine
- machine stator
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Abstract
A kind of new transposition of alternating current machine stator coil type coil connects, and its main feature is need not change under the situation of primary coil, adopts T formula and R formula to connect to each strand of coil type winding.And need strict insulation between each strand, thereby it is even to reach in the coil CURRENT DISTRIBUTION between strand in parallel, eliminates first-harmonic and harmonic wave circulation loss.The present invention has that technology is simple, effect is remarkable, is easy to advantages such as popularization.
Description
The invention belongs to the electric rotating machine field
Extensively adopt coil type winding in the alternating current machine, each coil is made up of the multiturn series conductor, and in order to reduce eddy current loss, every circle lead is made up of several strands in parallel usually.In order to reduce the circulation loss between these strands in parallel.Usually carry out transposition by twisting in its end, because in coil type winding, the slot part strand does not generally replace, every circle strand in parallel stacks and during winding wiring along the high direction of groove in the coil, its top and terminal strand all weld together, like this, because the effect of slot part and brow leakage field will produce very important circulation loss between strand in parallel.Because the complexity of theory analysis and protype measurement strand electric current, the problem of existence does not cause enough attention as yet." the new transposition of large ac machines stator bar connects " that Chinese patent 86103857 and British patent 964286 propose respectively reaches " improvement of motor windings ", all be to suppress stator bar formula line rod strand circulation, and described coupling method and the present invention have difference in essence.
The objective of the invention is to, proposed a kind of " the new transposed connecting method of alternating current machine stator coil type coil ", after prototype was implemented, actual measurement strand electric current shows had eliminated first-harmonic and harmonic wave circulation loss fully, obtained and the agreement with theoretical analysis result, effect is very remarkable.
Task of the present invention is to adopt the new transposition of alternating current machine stator coil type coil to connect, so that make the CURRENT DISTRIBUTION between alternating current machine stator coil type coil strand in parallel even.In the BCL213/49-12 type, 1560KW, after implementing on the 6300V hydraulic generator, adopt " sieve gaussian basis " coil that the strand electric current is surveyed, the result shows: the strand current imbalance factor is reduced to 1.07 from 1.57, has eliminated first-harmonic and harmonic wave circulation loss, thereby the CURRENT DISTRIBUTION that reaches the coils from parallel connection of coils strand is even, raise the efficiency, coil type winding transposition connecting process is simple, is easy to apply.
Referring to accompanying drawing
Fig. 1 is that the R formula of strand between coil connects schematic diagram
Fig. 2 is that 180 ° of transpositions of strand T formula at interpolar tie place connect schematic diagram
Fig. 3 is that a branch road connects schematic diagram
The new transposition connection of alternating-current motor stator coil type winding of the present invention refers to when coil connects a branch road of certain phase of formation, that the strand of coil connection place is respectively is front-seat (a-a ', b-b ', c-c ', d-d ', e-e ', f-f ') dock, rear row (g-g ', h-h, i-i ', j-j ', k-k ', l-l ') dock; This kind docking can be welding, also can by grafting, the overlap joint of certain device, namely be called the R formula and connect. Simultaneously, at the interpolar tie place of the mid point end of the whole coil of this branch road, each corresponding strand carries out 180 ° of transposition by twisting, by connecting mode shown in Figure 2, so that left side strand and the right strand are each other inversion. Namely being called the transposition of T formula connects. All need strict insulation between each strand during R formula connection of the present invention, T formula connect. Can adopt separately the R formula to connect between the stator coil of an alternating current generator, or adopt separately the T formula to connect, it is best also can adopting simultaneously common connection of R formula and T formula.
The new transposition of alternating-current motor stator coil type winding of the present invention connects, and when forming a branch road of every phase, its top and terminal strand are short circuits.
The new transposition of alternating current machine stator coil type coil of the present invention connects, it mainly is to use conventional method, need not change primary coil, the interpolar tie place of the mid point end of whole winding in each bar branch road or each utmost point are organized mutually, each corresponding strand carries out 180 ° of transposition by twisting, make left side strand and the right strand be inverted each other, thereby first-harmonic and harmonic wave circulation loss have been eliminated fully, the CURRENT DISTRIBUTION that has reached the coils from parallel connection of coils strand evenly, cooling, samming, prolonged insulation useful life, improved that motor is exerted oneself and operational efficiency.
Claims (3)
1, the new transposition connecting mode of alternating current machine stator coil type coil, it is characterized in that, at each corresponding strand of the connection place, end of adjacent windings, be respectively front-seat (a-a ', b-b ', c-c ', d-d ', e-e ', f-f ') dock, back row (g-g ', h-h ', i-i ', j-j ', k-k ', l-l ') docks; This butt joint simultaneously can be welding, also can promptly be called the R formula and connect by grafting, the overlap joint of certain device.
2, the new transposition connecting mode of alternating current machine stator coil type coil according to claim 1, it is characterized in that, each corresponding strand of interpolar tie place of the mid point end of whole winding carries out 180 ° of transposition by twisting in each bar branch road or each utmost point are organized mutually, and promptly left side strand is that the inverted each other T of being called formula transposition connects with the right strand.
3, according to the new transposition connecting mode of claim 1,2 described alternating current machine stator coil type coils, it is characterized in that, all need strict insulation between described each strand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89108530 CN1022599C (en) | 1989-11-06 | 1989-11-06 | Renewing connection of AC motor stator coil type winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89108530 CN1022599C (en) | 1989-11-06 | 1989-11-06 | Renewing connection of AC motor stator coil type winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1051642A true CN1051642A (en) | 1991-05-22 |
| CN1022599C CN1022599C (en) | 1993-10-27 |
Family
ID=4857611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89108530 Expired - Fee Related CN1022599C (en) | 1989-11-06 | 1989-11-06 | Renewing connection of AC motor stator coil type winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1022599C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022229B (en) * | 2007-03-27 | 2013-01-02 | 南京汽轮电机(集团)有限责任公司 | Stator winding end partial unit connecting method |
| CN103929000A (en) * | 2013-01-11 | 2014-07-16 | 丰田自动车株式会社 | Assembly Conducting Wire For Rotary Electric Machine Winding And Rotary Electric Machine |
| CN105099032A (en) * | 2015-09-15 | 2015-11-25 | 哈尔滨理工大学 | Two-cycle hybrid transposed stator bar of large steam-turbine generator and two-cycle hybrid transposition method |
| CN108711987A (en) * | 2018-08-24 | 2018-10-26 | 哈尔滨理工大学 | Alternating-current motor stator universe formula transposition coil type winding and its design method |
| CN108768032A (en) * | 2018-06-19 | 2018-11-06 | 哈尔滨理工大学 | Stator Windings of AC Motor and end coupling method |
| CN113990655A (en) * | 2021-12-09 | 2022-01-28 | 山东电工电气集团智能电气有限公司 | Layered coil transposition device and transposition method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7312794B2 (en) * | 2021-08-30 | 2023-07-21 | ヤマハ発動機株式会社 | electric motor |
-
1989
- 1989-11-06 CN CN 89108530 patent/CN1022599C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022229B (en) * | 2007-03-27 | 2013-01-02 | 南京汽轮电机(集团)有限责任公司 | Stator winding end partial unit connecting method |
| CN103929000A (en) * | 2013-01-11 | 2014-07-16 | 丰田自动车株式会社 | Assembly Conducting Wire For Rotary Electric Machine Winding And Rotary Electric Machine |
| CN103929000B (en) * | 2013-01-11 | 2017-07-18 | 丰田自动车株式会社 | Set wire and electric rotating machine for electric rotating machine winding |
| CN105099032A (en) * | 2015-09-15 | 2015-11-25 | 哈尔滨理工大学 | Two-cycle hybrid transposed stator bar of large steam-turbine generator and two-cycle hybrid transposition method |
| CN105099032B (en) * | 2015-09-15 | 2017-06-09 | 哈尔滨理工大学 | A kind of double week mixing transposition stator bars of large turbo-type generator and double week mixing interchanging methods |
| CN108768032A (en) * | 2018-06-19 | 2018-11-06 | 哈尔滨理工大学 | Stator Windings of AC Motor and end coupling method |
| CN108768032B (en) * | 2018-06-19 | 2024-05-28 | 哈尔滨理工大学 | Stator winding of alternating current motor and end connection method |
| CN108711987A (en) * | 2018-08-24 | 2018-10-26 | 哈尔滨理工大学 | Alternating-current motor stator universe formula transposition coil type winding and its design method |
| CN108711987B (en) * | 2018-08-24 | 2023-12-22 | 哈尔滨理工大学 | Global transposition ring type coil of alternating current motor stator and design method thereof |
| CN113990655A (en) * | 2021-12-09 | 2022-01-28 | 山东电工电气集团智能电气有限公司 | Layered coil transposition device and transposition method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1022599C (en) | 1993-10-27 |
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