CN102751073A - Power transformer capable of smoothly adjusting output voltage - Google Patents
Power transformer capable of smoothly adjusting output voltage Download PDFInfo
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- CN102751073A CN102751073A CN2011100976640A CN201110097664A CN102751073A CN 102751073 A CN102751073 A CN 102751073A CN 2011100976640 A CN2011100976640 A CN 2011100976640A CN 201110097664 A CN201110097664 A CN 201110097664A CN 102751073 A CN102751073 A CN 102751073A
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Abstract
The invention relates to a power transformer capable of smoothly adjusting an output voltage. The existing transformer is limited by a tap switch, the curve of the output voltage is not smooth, and the tap switch is limited by action times. The power transformer capable of smoothly adjusting the output voltage makes up the defects, and is characterized by comprising a main magnetic circuit and a voltage adjusting magnetic circuit, wherein a completely disconnected gap is formed on an iron core forming the voltage adjusting magnetic circuit, and a voltage adjusting core block is arranged in the gap and is driven by an operating mechanism to move in the gap, so that the output voltage of the transformer can be smoothly adjusted. The power transformer capable of smoothly adjusting the output voltage is additionally provided with the voltage adjusting magnetic circuit, a voltage adjusting winding and the voltage adjusting core block on the basis of the existing single-phase transformer, and although the manufacturing cost is improved, the power transformer can be used for stabilizing the power supply voltage in an ideal state, and then the loss of electric energy on a transmission line can be further reduced, so that the power transformer capable of smoothly adjusting the output voltage is favorable for energy conservation and emission reduction, and has obvious potential economic benefits.
Description
Affiliated technical field
The present invention relates in the electric power system, be used to improve the device of supply power voltage quality.
Background technology
Owing to variation or other reason of load, the voltage on the transmission line can produce fluctuation, therefore on all power transformers (being designated hereinafter simply as transformer), shunting switch is housed all.Through the gear of continuous adjusting shunting switch, make every effort to make supply power voltage to be stabilized in certain limit.Above-mentioned shunting switch all is that contact structure is arranged at present mostly, and this structure has the deficiency of two aspects: the one, can not operate when electric current is big, and the 2nd, the number of operations of every day has certain limitation.Obviously, the voltage curve of existing transformer output is rough.For remedying above deficiency, record can adopt controllable silicon to form above-mentioned shunting switch on the interrelated data.For various reasons, the transformer be made up of controllable silicon of shunting switch is also rare in the market.I have proposed a kind of scheme in patent application 201020683680.9, this scheme is still unexposed.
Summary of the invention
But the object of the invention is exactly the transformer that a kind of smooth adjustment output voltage will be provided, and this transformer can make supply power voltage more stable.
The objective of the invention is to realize like this: adopt parts such as iron core, winding and operating mechanism; Form main magnetic circuit and pressure regulation magnetic circuit, the pressure regulation winding is installed on the iron core that constitutes the pressure regulation magnetic circuit, this iron core is provided with the breach that breaks off fully; The pressure regulation pellet is housed in this breach; This pellet can be moved by the active force of aforesaid operations mechanism, can change the gap in the above-mentioned breach like this, with the output voltage of real-time regulated transformer.
Can adopt existing hydraulic pressure on the market, operating mechanism such as pneumatic to drive above-mentioned pressure regulation winding and in breach, move.
The present invention is simple in structure; Only need on existing single-phase transformer, increase pressure regulation magnetic circuit, pressure regulation winding and pressure regulation pellet; Though cost has improved; But because the present invention can be stabilized in perfect condition with supply power voltage, therefore can further reduce the loss of electric energy on transmission line, help energy-saving and emission-reduction.In addition, stable supply power voltage also can improve industrial product quality and prolong the useful life of various electric equipments, and its potential economic benefit is conspicuous.
Description of drawings
Fig. 1 is the fundamental diagram that has single phase step-down transformer at present.
Fig. 2 has a pressure regulation magnetic circuit according to what the present invention proposed, on the iron core that constitutes the pressure regulation magnetic circuit, is provided with the sketch map of the single phase step-down transformer of breach.
Fig. 3 has a pressure regulation magnetic circuit according to what the present invention proposed, on the iron core that constitutes the pressure regulation magnetic circuit, is provided with breach, and the pressure regulation pellet is housed in the breach, and the pressure regulation pellet fills up the sketch map of the single phase step-down transformer of whole breach.
Fig. 4 has a pressure regulation magnetic circuit according to what the present invention proposed, on the iron core that constitutes the pressure regulation magnetic circuit, is provided with breach, and the pressure regulation pellet is housed in the breach, makes the sketch map of gapped single phase step-down transformer in the breach after the pressure regulation pellet moves.
Fig. 5 is the front view corresponding with Fig. 4, that in breach, move in order to explanation pressure regulation pellet that proposes according to the present invention.
Fig. 6 is and the corresponding left view of Fig. 5.
Fig. 7 is and the corresponding vertical view of Fig. 5.
1. single-phase transformer iron cores among the figure, 2. high pressure winding connection end, 3. high pressure winding, 4. high pressure winding connection end; 5. shunting switch, 6. low pressure winding connection end, 7. low pressure winding, 8. low pressure winding connection end; 9. the day font iron core that has breach, 10. pressure regulation pellet, 11. pressure regulation winding connection ends, 12. pressure regulation windings; 13. pressure regulation winding connection end, 14. connecting lines, 15. scroll wheels.
Embodiment
In order to be illustrated more clearly in problem, at first in Fig. 1, provided the fundamental diagram of existing single phase step-down transformer, on the iron core that constitutes the pressure regulation magnetic circuit, be provided with breach, the operation principle that the pressure regulation pellet moves with Fig. 2, Fig. 3 and Fig. 4 explanation in breach respectively then.
In Fig. 1: high pressure winding (3) and low pressure winding (7) are respectively on two stem stems of iron core (1); The terminals (2) of high pressure winding (3), terminals (4) are connected with inlet wire (not drawing among the figure), and the terminals (6) of low pressure winding (7), terminals (8) are connected with outlet (not drawing among the figure).According to the operation principle of transformer, after high pressure winding (3) energising, magnetic flux flows in the magnetic circuit shown in the arrow, promptly produces induced voltage on the low pressure winding (7) and outwards exports through outlet.Receive the influence of supply voltage or other factors, output voltage changes sometimes.For making output voltage stabilization in certain limit, shunting switch (5) (annotating: on low pressure winding (7), shunting switch is housed also, for not drawing among the figure for simplicity) is being housed on the high pressure winding (3), but the no-load voltage ratio of real-time regulated transformer like this.In view of said deficiency in the above background technology, the voltage curve of this transformer output is rough.
In Fig. 2: adopt the day font iron core (9) that has breach; On the stem stem in the middle of this iron core high pressure winding (3) is arranged; Low pressure winding (7) is arranged on the stem stem on right side, pressure regulation winding (12) is arranged on the stem stem in left side, a breach (can find out in the drawings but do not mark) is arranged below the stem stem of left side.Low pressure winding (7) and pressure regulation winding (12) are through connecting line (14) be together in series (notes: the number of turn of low pressure winding (7) is much larger than the number of turn of pressure regulation winding (12)); The terminals of high pressure winding (2) are connected with inlet wire (not drawing among the figure) with terminals (4), and low pressure winding connection end (8) is connected with outlet (not drawing among the figure) with pressure regulation winding connection end (11) and outside output voltage.After high pressure winding (3) is through inlet wire and power connection, can form two magnetic circuits shown in the arrow.Wherein the magnetic circuit via high pressure winding (3) and low pressure winding (7) is called main magnetic circuit, is called the pressure regulation magnetic circuit via the magnetic circuit of high pressure winding (3) and pressure regulation winding (12).The magnetic flux that high pressure winding (3) produces is gone up the generation induced voltage at low pressure winding (7) and pressure regulation winding (12) respectively through above-mentioned two magnetic circuits, and the magnitude of voltage that this transformer is outwards exported equals the voltage sum of low pressure winding (7) and pressure regulation winding (10).For with output voltage stabilization in certain limit, pressure regulation pellet (10) also is housed like Fig. 3 and shown in Figure 4 in above-mentioned breach.
In Fig. 3: pressure regulation pellet (10) is formed by stacking silicon steel sheet, and institute's materials used is identical with this transformer core.The thickness and the width of pressure regulation pellet (10) equate fully that with transformer core its length is as the criterion to satisfy the pressure regulation requirement.By finding out among the figure; Pressure regulation pellet (10) has filled up whole breach, and the gap in the breach is almost nil, and the magnetic resistance in the pressure regulation this moment magnetic circuit approximates the magnetic resistance in the main magnetic circuit; It is the highest that pressure regulation winding (12) is gone up the induced voltage that produces, and the output voltage of transformer is also the highest.When needing to reduce the output voltage of transformer, under the effect of operating mechanism (not drawing among the figure), can make pressure regulation pellet (10) be moved to the left position shown in Figure 4 along the direction of arrow by position shown in Figure 3.Can clearly be found out by Fig. 4: an intersegmental crack is arranged in the breach, and the magnetic resistance of the magnetic resistance in this moment pressure regulation magnetic circuit in the main magnetic circuit causes the induced voltage on the pressure regulation winding (12) to reduce, and the output voltage of transformer also decreases.Otherwise, when needing the output voltage of rising transformer, can make pressure regulation pellet (10) again by position shown in Figure 4 along the direction of arrow position shown in Figure 3 that moves right.The distance that pressure regulation pellet (10) moves at every turn can be decided according to the amplitude of pressure regulation.This shows: adopt this method of pressure regulation pellet (10) that moves in real time, but the output voltage of real-time regulated transformer.When power supply or other reason cause that the transformer output voltage changes; This variable signal can be gathered and is input to operating mechanism (not drawing among the figure) through voltage transformer (not drawing among the figure); Operating mechanism promptly promotes pressure regulation pellet (10) and in above-mentioned breach, moves, like this can be with the output voltage stabilization of transformer in certain limit.The general configuration that pressure regulation pellet (10) moves in breach can be referring to Fig. 5, Fig. 6, Fig. 7.
In Fig. 5, Fig. 6, Fig. 7: corresponding with Fig. 4; Employing has the day font iron core (9) of breach, and (for for simplicity, the stem stem in centre and left side has only drawn among the figure; The stem stem on right side and low pressure winding (7) do not draw); Be wound with high pressure winding (3) on the stem stem in the middle of this iron core, be wound with pressure regulation winding (12) on the stem stem in left side, pressure regulation pellet (10) is housed in the breach in the lower left corner; Four identical scroll wheels (15) (annotate: wheel shaft does not draw in the drawings) are equipped with in the bottom of pressure regulation pellet (10), so that reduce the resistance of pressure regulation pellet (10) in moving process.Iron core (9) and all windings are fixed on the bottom of oil tank of transformer (not drawing among the figure) together, and scroll wheel (15) can roll in the bottom of fuel tank, can make pressure regulation pellet (10) move left and right in breach like this.According to the variation of transformer output voltage, when needing to move pressure regulation pellet (10), operating mechanism (not drawing among the figure) promptly promotes pressure regulation pellet (10) along direction of arrow move left and right.
Except that operating mechanism, above-mentioned all parts are installed in the oil tank of transformer, and are connected with outlet with inlet wire through insulating sleeve.The number of turn of each winding and the size of iron core should be decided according to the capacity of transformer.In real time detect the variation of transformer output voltage, the utilization and the control system of operating mechanism belongs to prior art, its operation principle can be not described in detail in this referring to Nanjing six description of product of scientific & technical corporation all.
Can be found out by above embodiment: moving pressure regulation pellet (10) in real time is the output voltage of scalable transformer, and does not receive the restriction of size of current and number of operations fully, so the voltage curve of this transformer output is level and smooth.
Claims (1)
1. but the power transformer of a smooth adjustment output voltage; This transformer mainly is made up of parts such as iron core, winding and operating mechanisms; It is characterized in that this transformer has main magnetic circuit and pressure regulation magnetic circuit, the pressure regulation winding be installed on the iron core that constitutes the pressure regulation magnetic circuit that this iron core is provided with the breach that breaks off fully; The pressure regulation pellet is housed in this breach; This pellet can be moved by the active force of aforesaid operations mechanism, can change the gap in the above-mentioned breach like this, with the output voltage of real-time regulated transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100976640A CN102751073A (en) | 2011-04-19 | 2011-04-19 | Power transformer capable of smoothly adjusting output voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100976640A CN102751073A (en) | 2011-04-19 | 2011-04-19 | Power transformer capable of smoothly adjusting output voltage |
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| Publication Number | Publication Date |
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| CN102751073A true CN102751073A (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100976640A Pending CN102751073A (en) | 2011-04-19 | 2011-04-19 | Power transformer capable of smoothly adjusting output voltage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216492A (en) * | 2020-09-02 | 2021-01-12 | 中铁第一勘察设计院集团有限公司 | Voltage regulating transformer structure based on electric field sensitive magnetic material |
| CN113241840A (en) * | 2021-06-21 | 2021-08-10 | 广州航海学院 | Offshore power supply device |
| CN113744982A (en) * | 2021-08-05 | 2021-12-03 | 广东云舜综合能源科技有限公司 | Pre-voltage-regulating transformer |
-
2011
- 2011-04-19 CN CN2011100976640A patent/CN102751073A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216492A (en) * | 2020-09-02 | 2021-01-12 | 中铁第一勘察设计院集团有限公司 | Voltage regulating transformer structure based on electric field sensitive magnetic material |
| CN112216492B (en) * | 2020-09-02 | 2024-05-03 | 中铁第一勘察设计院集团有限公司 | Voltage regulating transformer structure based on electric field sensitive magnetic material |
| CN113241840A (en) * | 2021-06-21 | 2021-08-10 | 广州航海学院 | Offshore power supply device |
| CN113744982A (en) * | 2021-08-05 | 2021-12-03 | 广东云舜综合能源科技有限公司 | Pre-voltage-regulating transformer |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121024 |