CN105895343A - Automatic voltage increase and decrease transformer - Google Patents
Automatic voltage increase and decrease transformer Download PDFInfo
- Publication number
- CN105895343A CN105895343A CN201610400464.0A CN201610400464A CN105895343A CN 105895343 A CN105895343 A CN 105895343A CN 201610400464 A CN201610400464 A CN 201610400464A CN 105895343 A CN105895343 A CN 105895343A
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- Prior art keywords
- voltage
- winding
- transformer
- low pressure
- phase
- Prior art date
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- Pending
Links
- 238000004804 winding Methods 0.000 claims abstract description 74
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 9
- 230000010190 G1 phase Effects 0.000 description 6
- 230000010337 G2 phase Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000030090 Acute Disease Diseases 0.000 description 1
- 206010039729 Scotoma Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention relates to the technical field of electric power engineering, in particular to an automatic voltage increase and decrease transformer. According to the automatic voltage increase and decrease transformer, a low-voltage winding is a three-phase winding in star connection, the low-voltage winding is provided with a common output terminal, three voltage output points are arranged in each phase of the low-voltage winding, the voltages at the three voltage output points in each phase are a high voltage, a low voltage and a normal voltage respectively, and the three voltage output points in each phase are connected with an output voltage through a switch. The device can be applied to a rural circuit supply system, temporary deployment measures for different powers or voltages are realized, and it is ensured that the voltages at key occasions are stable and the voltages at general occasions meet basic electricity demands.
Description
Technical field
The present invention relates to electric power project engineering field, particularly relate to the transformer of a kind of automatic boosting step-down.
Background technology
Rural power grids present situation at present, power supply point configuration deficiency, radius of electricity supply is excessive, and line footpath is meticulous, adds the fast development of rural economy, the continuous quickening of Urbanization Construction, and the people's livelihood policy of country's " household electrical appliances are gone to the countryside " causes electricity for rural use and load the most soaring.
The feature of rural electricity consumption is to typically occur in evening at 7 o'clock to 9 o'clock, now in rural area mainly based on illumination, its voltage is the most on the low side, but the development along with rural area, hospital in rural area, school are necessary to ensure that stablizing of supply voltage, as school is necessary to ensure that bulb brightness is enough, to guarantee that student's self-study at night is read a book without making hypometropia, and rural hospital the most also carries out medical operating, acute disease as in the night, it is also desirable to guarantee power supply quality, and daily household illuminating lamp, then resident can be affected relatively small with relative scotoma.
Summary of the invention
For the deficiencies in the prior art, the invention provides the transformer of a kind of automatic boosting step-down.The three-phase windings that low pressure winding is Y-connection of the present invention, this low pressure winding is provided with public output, and 3 voltage output points are set in every phase winding of low pressure winding, 3 voltage output point voltages are respectively high pressure, low pressure and normal voltage, and 3 voltage output points are connected with output voltage by switch.Assembly of the invention can be applied in the circuit supply system of rural area, it is achieved the allotment measure of temporary difference power or voltage, it is ensured that emphasis site voltage is stable, and general place meets basic need for electricity.
The technical scheme is that the transformer that a kind of automatic boosting is depressured, including high pressure winding, low pressure winding and iron core T；Described high pressure winding is the three-phase windings that triangle connects, in high pressure winding a phase winding around to other two phase winding around to contrary, and this winding with other upper and lower end of incoming cables of two phase windings described for being reversed, and by joining end to end, complete triangle connection；It is characterized in that: described low pressure winding is the three-phase windings of Y-connection, this low pressure winding is provided with public output, and 3 voltage output points are set in every phase winding of low pressure winding, 3 voltage output point voltages are respectively high pressure, low pressure and normal voltage, and 3 voltage output points are connected with output voltage by switch.
The transformer being depressured according to automatic boosting as above, it is characterized in that: the transformer of described automatic boosting step-down also includes switching circuit, described switching circuit is in parallel with normal voltage output point loop, switching circuit includes switching switch, electric capacity and resistance, and switching switch, electric capacity and resistant series.
The transformer being depressured according to automatic boosting as above, it is characterised in that: described high pressure is 1.1 times of normal voltage, and described normal voltage is 1.1 times of low pressure.
The transformer being depressured according to automatic boosting as above, it is characterised in that: described electric capacity is that 1uF, resistance range are between 15 to 35 ohm.
The transformer being depressured according to automatic boosting as above, it is characterised in that: in every phase winding of described low pressure winding, output organizes different voltage.
The transformer being depressured according to automatic boosting as above, it is characterised in that: described iron core T uses cold-reduced silicon sheet.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the schematic diagram of single-phase many group outputs of low pressure winding of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described further.
As shown in Fig. 1, the transformer of the automatic boosting step-down of the present invention includes high pressure winding, low pressure winding and iron core T.High pressure winding is the three-phase windings that triangle connects, this three-phase windings is respectively as follows: G1 phase winding, G2 phase winding, G3 phase winding, G1 phase winding and G3 phase winding around consistent, G2 phase winding and G1 phase winding, G3 phase winding around to contrary, and G2 phase winding with the inlet wire of G1 phase winding, G3 phase winding upper and lower end of incoming cables for being reversed, and by joining end to end, form triangle and connect.The G1 phase winding of the present invention is accessed by input terminal A1, and G2 phase winding is accessed by input terminal A2, and G3 phase winding is accessed by input terminal A3, and E1 terminal is the public input terminal of G1 phase winding, G2 phase winding and G3 phase winding.
As it is shown in figure 1, the three-phase windings that low pressure winding is Y-connection of the present invention, this low pressure winding is provided with the sub-E2 of public output, and the output voltage of this low pressure winding is respectively U1, U2, U3.In order to make the output point of the present invention can require to export different voltage according to electricity consumption, the low pressure winding of the present invention is respectively provided with 3 voltage output points, the voltage of 3 voltage output points is respectively high pressure, low pressure and normal voltage, and between 3 voltage output points and output voltage, set up control switch, for the conversion of different voltages.In order to make in voltage transfer process, circuit will not power-off, the present invention can also be at normal voltage output point loop parallel connection switching circuit, and switching circuit includes switching switch, electric capacity and resistance, and switching switch, electric capacity and resistant series.When voltage needs cut-flower to high pressure or low pressure, first connecting switching circuit, then normal voltage disconnected quickly, access the voltage needing cut-flower, last switching circuit disconnects, and can complete the boosting of the switching to this circuit or step-down work.After voltage is normal, first connecting switching circuit, then boosting or step-down voltage are disconnected quickly, then access normal voltage, last switching circuit disconnects, and i.e. realizes the normal of voltage and exports.
Below with the output of U1 road circuit as an example, repeated description, as the operation principle on U1 road, is not the most done in U2, U3 road.As it is shown in figure 1, the voltage of U1 point can be U11, U12, U13, wherein U12 is normal voltage output point, and when circuit overall responsibility and load are normal, its voltage is 220V；U13 is reduced output voltage point, and the voltage of U12 is preferably 1.1 times of U13；U11 is boosting output point, and the voltage of U11 is preferably 1.1 times of U12.So when normal voltage is too low, boosting output or reduced output voltage can be selected, such as too low when global voltage, when 200V, the output voltage of U11 point is 220V, its output valve is normal, can meet needs and ensure the place need for electricity of normal power supply, U13 is then about 180V, can meet usually side's electric consumption on lighting, guarantee that place, mountain area need not have a power failure, but lighting apparatus can only be used.In the present invention, U1 is connected with U11, U12, U13 respectively by switching switch K11, K13, K14.
In order to ensure in switching electric process, there is not circut breaking in circuit, the present invention also adds switching circuit in normal voltage road, as middle transition circuit when being used for switching.As depicted in figs. 1 and 2, the switching circuit of the present invention also connects into the output point of U12, and switching circuit includes connecting between switching switch K12, electric capacity C1 and resistance R1, and switching switch K12, electric capacity C1 and resistance R1.The electric capacity C1 of the present invention, the big I of resistance R1 select according to actual conditions.In in the present invention, electric capacity C1 can be selected for the capacitor of 1uF, resistance R1 can be selected for the resistance of 15 to 35 ohm, so can meet the demand of most switching circuit.
As shown in Figure 2, each road of the present invention can export the voltage that many groups are different, as when low pressure winding normal output point U12 voltage only has 200V, U13 voltage is about 180V, U11 voltage is about 220V, by U1A, U1B, U1C by switch switch respectively with U11, U12, U13 UNICOM, then U1A, U1B, U1C output voltage is respectively 220V, 200V, 180V, it is achieved the control respectively to different brackets line voltage distribution.
The present invention also can increase voltage measuring apparatus and control device, and voltage measuring apparatus, for measuring the voltage between normal voltage output point U12, U22, U32 and E2, controls device and opens according to boosting demand modeling switch or close, it is achieved circuit is from moving pressure.In accompanying drawing 2, input voltage U12 is relatively low, and U1A road is that important place is powered, such as hospital, school, then the voltage of automatic lifting U1A is 1.1 times of U12, reduces the voltage on U1B, U1C road, so while guaranteeing that important place is powered, the simple requirements such as illumination also not interfering with other places.
Iron core T in the present invention, preferably with cold-reduced silicon sheet, so can reduce coercivity, core loss (iron loss) and magnetic aging.
Technical scheme mesohigh winding use delta connection simple in construction, be easy to wiring, and it is few to arrange lead-out terminal in every phase winding of low pressure winding, both the output of multiple voltage can have been realized, the voltage output end decreasing again low pressure winding arranges the quantity of binding post, easy to operate, and when three-phase electricity consumption inequality is horizontal, electricity consumption can be regulated by the way of boosting or step-down.
Assembly of the invention can be applied in the circuit supply system of rural area, due to remote mountain areas voltage instability, but it is necessary to ensure that school in mountain area, the power demands of hospital and supply voltage, assembly of the invention can realize the demand that multipolarization is powered, and meets the allotment measure of temporary difference power or voltage.
Claims (6)
1. a transformer for automatic boosting step-down, including high pressure winding, low pressure winding and iron core T；Described high pressure winding is the three-phase windings that triangle connects, in high pressure winding a phase winding around to other two phase winding around to contrary, and this winding with other upper and lower end of incoming cables of two phase windings described for being reversed, and by joining end to end, complete triangle connection；It is characterized in that: described low pressure winding is the three-phase windings of Y-connection, this low pressure winding is provided with public output, and 3 voltage output points are set in every phase winding of low pressure winding, 3 voltage output point voltages are respectively high pressure, low pressure and normal voltage, and 3 voltage output points are connected with output voltage by switch.
The transformer of automatic boosting the most according to claim 1 step-down, it is characterized in that: the transformer of described automatic boosting step-down also includes switching circuit, described switching circuit is in parallel with normal voltage output point loop, switching circuit includes switching switch, electric capacity and resistance, and switching switch, electric capacity and resistant series.
The transformer of automatic boosting the most according to claim 1 step-down, it is characterised in that: described high pressure is 1.1 times of normal voltage, and described normal voltage is 1.1 times of low pressure.
The transformer of automatic boosting the most according to claim 1 step-down, it is characterised in that: described electric capacity is that 1uF, resistance range are between 15 to 35 ohm.
The transformer of automatic boosting the most according to claim 1 step-down, it is characterised in that: in every phase winding of described low pressure winding, output organizes different voltage.
The transformer of automatic boosting the most according to claim 1 step-down, it is characterised in that: described iron core T uses cold-reduced silicon sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400464.0A CN105895343A (en) | 2016-06-08 | 2016-06-08 | Automatic voltage increase and decrease transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400464.0A CN105895343A (en) | 2016-06-08 | 2016-06-08 | Automatic voltage increase and decrease transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105895343A true CN105895343A (en) | 2016-08-24 |
Family
ID=56710414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610400464.0A Pending CN105895343A (en) | 2016-06-08 | 2016-06-08 | Automatic voltage increase and decrease transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105895343A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945950A (en) * | 2006-11-10 | 2007-04-11 | 赵忠臣 | Switch step switchover type AC voltage regulator |
| CN103474219A (en) * | 2013-10-11 | 2013-12-25 | 无锡利日能源科技有限公司 | Three-phase transformer |
| CN203522190U (en) * | 2013-08-27 | 2014-04-02 | 谢子豪 | Rural power line voltage flexible compensation apparatus based on multi-winding transformation |
| CN104795225A (en) * | 2015-04-21 | 2015-07-22 | 国网青海省电力公司黄化供电公司 | Auxiliary device for installing transformer |
| CN105336481A (en) * | 2015-12-01 | 2016-02-17 | 浙江法拉迪电气有限公司 | 36-level high-precision capacitance and voltage adjusting transformer for distributing line |
-
2016
- 2016-06-08 CN CN201610400464.0A patent/CN105895343A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945950A (en) * | 2006-11-10 | 2007-04-11 | 赵忠臣 | Switch step switchover type AC voltage regulator |
| CN203522190U (en) * | 2013-08-27 | 2014-04-02 | 谢子豪 | Rural power line voltage flexible compensation apparatus based on multi-winding transformation |
| CN103474219A (en) * | 2013-10-11 | 2013-12-25 | 无锡利日能源科技有限公司 | Three-phase transformer |
| CN104795225A (en) * | 2015-04-21 | 2015-07-22 | 国网青海省电力公司黄化供电公司 | Auxiliary device for installing transformer |
| CN105336481A (en) * | 2015-12-01 | 2016-02-17 | 浙江法拉迪电气有限公司 | 36-level high-precision capacitance and voltage adjusting transformer for distributing line |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160824 |
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| RJ01 | Rejection of invention patent application after publication |