CN201181633Y - 10KV and 20KV dual-purpose single-phase rolled iron-core transformer - Google Patents
10KV and 20KV dual-purpose single-phase rolled iron-core transformer Download PDFInfo
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- CN201181633Y CN201181633Y CNU2008200314954U CN200820031495U CN201181633Y CN 201181633 Y CN201181633 Y CN 201181633Y CN U2008200314954 U CNU2008200314954 U CN U2008200314954U CN 200820031495 U CN200820031495 U CN 200820031495U CN 201181633 Y CN201181633 Y CN 201181633Y
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- 238000004804 winding Methods 0.000 claims abstract description 75
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract 4
- 230000001939 inductive effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A double-duty single-phase roll-core transformer of 10KV and 20KV includes a box body, an iron core, a primary winding and a secondary winding; the iron core is formed by a closed magnetizer loop rolled by a strip magnetic inductive belt; the primary winding includes a first primary winding and a second primary winding with the same number of turns; the utility model is characterized in that the two ends of the first primary winding and the second primary winding are all connected to a double-pole double-throw conversion switch and is connected with a power by the double-pole double-throw conversion switch to form two series-parallel conversion structure of the primary windings. In the utility model, the series-parallel conversion between the first primary winding and the second primary winding is used to adapt to the two situations of an inputted voltage of 10KV and an inputted voltage of 20KV; the universality is high.
Description
Technical field
The utility model relates to a kind of distribution transformer, is specifically related to a kind of dual-purpose Single-phase roll iron-core transformer, and this dual-purpose Single-phase roll iron-core transformer is meant the Single-phase roll iron-core transformer applicable to two kinds of input voltages.
Background technology
Distribution transformer is a vitals in the low-voltage distribution system, and its structure and performance not only are related to user's use, but also directly influences the efficient and the performance of electrical network.The iron core of tradition distribution transformer becomes by the silicon steel sheet stack.Along with rapid development of economy, the raising day by day of people's living standard, this tradition distribution transformer has exposed that line loss is big, no-load loss is big, the operation noise reaches disadvantages such as fabrication of iron core complex process greatly.For overcoming the above-mentioned disadvantage of traditional transformer, applicant had once applied on December 11st, 2000 that the patent No. was 00261895.8, name is called the utility model patent of " Single-phase roll iron-core transformer ", a kind of novel reel iron core transformer is disclosed in patent, the characteristics of this transformer are its iron core, and its iron core is that the magnetic conductor loop that the strip magnetic conducting band by a kind of thickness, a kind of specification is wound into sealing constitutes.For many years, this kind reel iron core transformer has been subjected to promoting widely and using, and on single-phase basis, develop the transformer that three-phase, through facts have proved: reel iron core transformer has that no-load loss is little, noise is little, the mechanical strength advantages of higher, is an energy-conserving and environment-protective product.
China's distribution voltage is 10KV always, and this voltage series is still after liberation set up according to russian national standard at that time, and is leveraged to the present always.Moved 15 years at present because the foundation of Suzhou Singapore industrial park is progressively introduced the 20KV electric pressure as distribution voltage in 93 years, ruuning situation is normal.Have following advantage as 20KV electric pressure distribution voltage:
1, energy savings.When carrying the electric power of same capacity, the electric current of 20KV grade only is 50% of a 10KV grade, the principle that is directly proportional with current squaring according to line loss.The loss of 20KV circuit only is 25% of 10KV line loss, energy efficient in a large number.
2, the comparable 10KV fed distance of 20KV is twice under the situation of same electrical pressure
3,20KV is that earth neutral system personal safety to the resident for overhead wire is more reliable than 10KV.
Because the overhead transmission line of 20KV distribution voltage is progressively promoted in above-mentioned advantage Jiangsu Power Company decision in the area, Jiangsu.
The equipment that the 10KV distribution line is boosted must change former 10KV distribution line for the 20KV distribution line causes the waste of great amount of investment, particularly distribution transformer is the capital equipment of distribution line, not only costs an arm and a leg, and also must have a power failure when changing simultaneously, cause power breakdown, influence national economy.So comply with above-mentioned situation, designing all spendable single phase distribution transformer of two kinds of voltages of a kind of 10KV of having, 20KV has been the task of top priority that current power is produced.
Summary of the invention
The utility model provides a kind of dual-purpose Single-phase roll iron-core transformer, its objective is to solve to exist in the prior art to be common to two kinds of input voltages of 10KV, 20KV, when distribution line needs to change the technical problem of versatility difference when 10KV boosts to 20KV.
For achieving the above object, the technical solution adopted in the utility model is: the dual-purpose Single-phase roll iron-core transformer of a kind of 10KV and 20KV comprises casing, iron core, elementary winding and secondary winding; Described iron core is made of the magnetic conductor loop that the strip magnetic conducting band is wound into sealing, and elementary winding is divided into the first identical elementary winding of the number of turn and the second elementary winding; The two ends of the described first elementary winding and the second elementary winding all are connected on the dpdt double-pole double-throw (DPDT) change over switch, connect power supply through the dpdt double-pole double-throw (DPDT) change over switch, constitute two elementary winding connection in series-parallel switching constructions.
In the such scheme, described dpdt double-pole double-throw (DPDT) change over switch connects into series connection and switchable structure in parallel with the first elementary winding, the second elementary winding, various ways is specifically arranged, the simple structure of the best is: described dpdt double-pole double-throw (DPDT) change over switch has the other terminal of first side that is arranged in order, the first meta terminal, the other terminal of second side, the second meta terminal and the other terminal of the 3rd side, and the first meta terminal connects moving contact and cooperates with the other terminal of first side, the other terminal switching of second side; The second meta terminal connects moving contact and cooperates with the other terminal of second side, the other terminal switching of the 3rd side; The described first elementary winding is connected between other terminal of first side and the other terminal of second side, and the second elementary winding is connected between the first meta terminal and the second meta terminal; And, connect power supply on the other terminal of first side and the second meta terminal.
Another kind, double-point double-throw switch also can adopt the structure that is similar to two single-pole single-throw switch (SPST)s, and it has six binding posts, the other terminal in both sides are wherein coupled together get final product.
In the such scheme, secondary winding can also be divided into first secondary winding and second subprime winding, and an end of first secondary winding and the second subprime winding ground connection that is connected constitutes the single-phase three wire system outlet, output+220V ,-220V supplies with two users; Also can be with first secondary winding and the outlet of second subprime winding independence.
In the such scheme, the IEC20KV design of transformer is pressed in transformer insulated requirement, and transformer noise, test meet IEC and stipulate accordingly.
In the such scheme, can add lightning protection device, pressure release guard device, magnetic switch, cable-to-cable connector etc. as required again.
The utility model design and operation principle are: the applicant utilizes 20KV voltage just for 1 times of 10KV voltage, and the elementary design of Windings of distribution transformer is become two the first elementary winding and second elementary windings corresponding to 10KV that the number of turn is identical; With a dpdt double-pole double-throw (DPDT) change over switch the first elementary winding and the second elementary winding are connected into the changeable structure of series and parallel then, satisfy the variation of input voltage 10KV and 20KV.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, because the utility model adopts a dpdt double-pole double-throw (DPDT) change over switch that the first elementary winding and the second elementary winding are connected into the changeable structure of series and parallel, be adapted to input voltage 10KV and two kinds of situations of 20KV, highly versatile with the first elementary winding and the series-parallel switching of the second elementary winding.
2, utilized the utility model,, need not, avoided that the big folding of equipment changes greatly in the process of boosting, saved operating expenses distribution voltage device integral replacing when the electrical network distribution voltage boosts to the 20KV process from 10KV.
3, utilized the utility model,, need not distribution voltage device integral replacing when the electrical network distribution voltage boosts to the 20KV process from 10KV, as long as operation is the dpdt double-pole double-throw (DPDT) change over switch down, operating time needed only several minutes, had shortened interruption duration, greatly reduced economic loss brought by power failure.
Description of drawings
Equivalent structure schematic diagram when accompanying drawing 1 is used for input voltage 10KV for the utility model;
Equivalent structure schematic diagram when accompanying drawing 2 is used for input voltage 20KV for the utility model;
Accompanying drawing 3 is the utility model primary side electrical schematic diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: shown in accompanying drawing 1～accompanying drawing 3, the dual-purpose Single-phase roll iron-core transformer of a kind of 10KV and 20KV, it is an oil-filled transformer, comprises oil plant, iron core, elementary winding AX and secondary winding ax that casing, casing are filled; Described iron core is made of the rectangle magnetic conductor loop that the strip silicon strip is wound into sealing, and four angles of rectangle magnetic conductor are fillet, and the magnetic conductor cross section is circular, and by the multistage silicon strip winding section constitution that is stepped change; The multistage silicon strip winding cross section that is stepped change is a symmetrical structure, and described silicon strip winding at the same level cross section is identical.
Shown in accompanying drawing 3, be provided with two sections straight way wrapping posts in the above-mentioned magnetic conductor loop, elementary winding AX is divided into the first identical elementary winding A of the number of turn
1X
1With the second elementary winding A
2X
2, the first elementary winding A
1X
1With the second elementary winding A
2X
2Respectively be wound on the straight way wrapping post; The described first elementary winding A
1X
1With the second elementary winding A
2X
2Two ends all be connected on the dpdt double-pole double-throw (DPDT) change over switch K, K connects power supply through the dpdt double-pole double-throw (DPDT) change over switch, constitutes two elementary winding connection in series-parallel switching constructions.Specifically see shown in the accompanying drawing 3, the primary side structure is: above-mentioned dpdt double-pole double-throw (DPDT) change over switch K has other terminal 5, the first meta terminals of the other terminal 1 of first side that is arranged in order, the first meta terminal 2, second side side terminal 3, the second meta terminal 4 and the 3rd side 2 connection moving contacts and cooperates with the other terminal 1 of first side, other terminal 3 switchings of second side; The second meta terminal 4 connects moving contact and cooperates with the other terminal 3 of second side, other terminal 5 switchings of the 3rd side; The described first elementary winding A
1X
1Be connected between other terminal 1 of first side and the other terminal 3 of second side second elementary winding A
2X
2Be connected between the first meta terminal 2 and the second meta terminal 4; And, connect the input power supply on the other terminal 1 of first side and the second meta terminal 4.
Present embodiment can also be according to various needs, functional parts such as configuration lightning protection, magnetic switch, cable-to-cable connector, overcurrent protection.
During the utility model work, state analysis is as follows:
1) when distribution voltage is 10KV, with the first elementary winding A
1X
1With the second elementary winding A
2X
2Be in parallel as shown in Figure 1, in the case:
U
1/U
2＝ω
1/ω
2＝10KV/220V
Wherein, U
1Be primary side input voltage, U
2Be primary side output voltage, ω
1Be the first elementary winding A
1X
1With the second elementary winding A
2X
2The number of turn, ω
2The number of turn for secondary winding ax.
Primary side total current I
1The electric current I of=2 * each elementary winding
1 ω
The capacity S=U of transformer
1I
1, S=10KV * 2I
1 ω
2) when distribution voltage is 20KV, with the first elementary winding A
1X
1With the second elementary winding A
2X
2Be in series as shown in Figure 2, in the case:
U
1/U
2＝2ω
1/ω
2＝20KV/220V
Wherein, U
1Be primary side input voltage, U
2Be primary side output voltage, ω
1Be the first elementary winding A
1X
1With the second elementary winding A
2X
2The number of turn, ω
2The number of turn for secondary winding ax.
Primary side total current I
1The electric current I of=each elementary winding
1 ω
The capacity S=U of transformer
1I
1, S=20KV * I
1 ω
From above-mentioned 1), 2) analysis of two situations, we can find out no matter being operated in 10KV still is under the 20KV, the capacity S of transformer all is identical.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (2)
1, the dual-purpose Single-phase roll iron-core transformer of a kind of 10KV and 20KV comprises casing, iron core, elementary winding (AX) and secondary winding (ax); Described iron core is made of the magnetic conductor loop that the strip magnetic conducting band is wound into sealing, and elementary winding is divided into the first identical elementary winding (A of the number of turn
1X
1) and the second elementary winding (A
2X
2); It is characterized in that: the described first elementary winding (A
1X
1) and the second elementary winding (A
2X
2) two ends all be connected on the dpdt double-pole double-throw (DPDT) change over switch (K), (K) connects power supply through the dpdt double-pole double-throw (DPDT) change over switch, constitutes two elementary winding connection in series-parallel switching constructions.
2, the dual-purpose Single-phase roll iron-core transformer of 10KV according to claim 1 and 20KV, it is characterized in that: described dpdt double-pole double-throw (DPDT) change over switch (K) has the other terminal (1) of first side that is arranged in order, the first meta terminal (2), second side side terminal (3), the second meta terminal (4) and the other terminal (5) of the 3rd side, and the first meta terminal (2) connects moving contact and cooperates with the other terminal (1) of first side, the other terminal of second side (3) switching; The second meta terminal (4) connects moving contact and cooperates with the other terminal (3) of second side, the other terminal of the 3rd side (5) switching; The described first elementary winding (A
1X
1) be connected between other terminal (1) of first side and the other terminal of second side (3) the second elementary winding (A
2X
2) be connected between the first meta terminal (2) and the second meta terminal (4); And, connect power supply on the other terminal (1) of first side and the second meta terminal (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200314954U CN201181633Y (en) | 2008-02-04 | 2008-02-04 | 10KV and 20KV dual-purpose single-phase rolled iron-core transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200314954U CN201181633Y (en) | 2008-02-04 | 2008-02-04 | 10KV and 20KV dual-purpose single-phase rolled iron-core transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181633Y true CN201181633Y (en) | 2009-01-14 |
Family
ID=40251129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200314954U Expired - Fee Related CN201181633Y (en) | 2008-02-04 | 2008-02-04 | 10KV and 20KV dual-purpose single-phase rolled iron-core transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181633Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360849A (en) * | 2011-07-12 | 2012-02-22 | 三变科技股份有限公司 | Double-high and low voltage on-load regulating transformer |
| WO2017081007A1 (en) * | 2015-11-09 | 2017-05-18 | Delphi Automotive Systems Luxembourg Sa | Method and apparatus to control an ignition system |
| CN106817029A (en) * | 2015-12-01 | 2017-06-09 | 雅达电子国际有限公司 | Scalable DC‑DC power converters for different output voltages |
| CN111312501A (en) * | 2020-04-01 | 2020-06-19 | 连云港杰瑞电子有限公司 | Method for realizing multiple turn ratios of planar transformer |
-
2008
- 2008-02-04 CN CNU2008200314954U patent/CN201181633Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360849A (en) * | 2011-07-12 | 2012-02-22 | 三变科技股份有限公司 | Double-high and low voltage on-load regulating transformer |
| CN102360849B (en) * | 2011-07-12 | 2013-03-13 | 三变科技股份有限公司 | Double-high and low voltage on-load regulating transformer |
| WO2017081007A1 (en) * | 2015-11-09 | 2017-05-18 | Delphi Automotive Systems Luxembourg Sa | Method and apparatus to control an ignition system |
| US10788006B2 (en) | 2015-11-09 | 2020-09-29 | Delphi Automotive Systems Luxembourg Sa | Method and apparatus to control an ignition system |
| CN106817029A (en) * | 2015-12-01 | 2017-06-09 | 雅达电子国际有限公司 | Scalable DC‑DC power converters for different output voltages |
| CN106817029B (en) * | 2015-12-01 | 2020-10-09 | 雅达电子国际有限公司 | Changeable DC-DC power converter for providing different output voltages |
| CN111312501A (en) * | 2020-04-01 | 2020-06-19 | 连云港杰瑞电子有限公司 | Method for realizing multiple turn ratios of planar transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20110204 |