CN2064132U - Three-phase load automatic voltage regulator - Google Patents
Three-phase load automatic voltage regulator Download PDFInfo
- Publication number
- CN2064132U CN2064132U CN 89215621 CN89215621U CN2064132U CN 2064132 U CN2064132 U CN 2064132U CN 89215621 CN89215621 CN 89215621 CN 89215621 U CN89215621 U CN 89215621U CN 2064132 U CN2064132 U CN 2064132U
- Authority
- CN
- China
- Prior art keywords
- voltage
- winding
- phase
- iron core
- magnetic circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Landscapes
- Control Of Electrical Variables (AREA)
Abstract
The utility model discloses a three-phase load automatic voltage regulator. The utility model is characterized in that two four column iron circuits are adopted by an electromagnetic system of the utility model, and only one electromagnetic system is provided with an AC secondary winding; a voltage boosting type auto-transformer which has two sections of magnetic path is composed of the AC secondary winding and a primary winding; the direct current which has the direct relation to the fluctuation of the electric network is adopted to control two magnetic circuit systems, and the method of obtainment of AC from the magnetic flux variation is adopted by an auxiliary magnetic path to control the magnetic path. The steady voltage can be discharged by the output terminal of the utility model.
Description
People solve the voltage stabilizing problem with electromagnetic principle and electronic circuit for these years, and saturation core regulator for example, stabilizing transformer, three-phase have the adjustable transformer of carrying and magnetic to transfer device, the high-power aspect of controllable silicon voltage stabilizing circuit or the like AC stabilizer.
As everyone knows, be not only China at present, power shortage at ubiquity all over the world, being reflected on the electrical network is brownout, and frequency is floated downward, and can not store transportation owing to exchange, so sharply increase when electricity capacity, and net capacity will produce the phenomenon that output voltage reduces when not enough.
Percentage that voltage descends and the moment of power consumption equipment relation are V
2=M, clearly when voltage decline 20%, moment has descended 36%, and is very unfavorable for power consumption equipment.
But present high-power Loading voltage regulator such as SZL7 etc. use the high-tension coil tap, are signal with the voltage difference, control miniature motor behind amplifying circuit, make its left-right rotation, thereby reach automatic Regulation.Price is very expensive especially as for the super-huge on-load voltage regulation twin coil of SFZ3 power transformer.Only be example with SZL-1600KVA/10KV, nineteen eighty-two announces that reference price is 33800 yuan, and breaks through 100,000 in 1989.With regard to this transformer, the place of production is few, uses Electronic Control, easy break-down, difficult maintenance.
Also have the magnetic amplifier of employing principle to make pressurizer in addition, or adopt bidirectional triode thyristor to transfer sense voltage stabilizing (being power conditioner), and adopt the full-automatic compensation voltage stabilizing of band servomotor, but price is too high.Advantage is a precision of voltage regulation height, but has a lot of occasions not need.As announced in 1988 reference price with JA type three-phase pressurizer for for example time:
1.5KVA 2200 yuan of 1900 yuan of 3KVA
4500 yuan of 3300 yuan of 10KVA of 5KVA
9000 yuan of 5300 yuan of 30KVA of 15KVA
21000 yuan of 135000 yuan of 100KVA of 50KVA
415000 yuan of 30000 yuan of 200KVA of 150KVA
And the advantage of this product is as follows:
1, the contactless switching of main circuit, also no-spark.
2, can change the common transformer that is moving, and connect just and can use as an electrical appliance.
3, when voltage ripple of power network, can automatically compensate, output voltage is rated value substantially in the time of can making 160 volts of line voltages, phase voltage is 220 volts.
4, former limit winding does not need to use 10 kilovolts of power supplys.(utilize this principle to make this product of extreme high voltage, other has explanation).
5, this product does not have the electronics amplifier element, and circuit is fairly simple, is again not easy break-down of electromagnetic principle, requires maintenance technique low, sturdy and durable long service life.
6, can carry out supportingly with any common power transformer (being the No-load changer device), guarantee the normal electricity consumption of user.
7, the capacity of its main magnetic circuit system only is 1/3rd of a power transformer.
8, the various high-power electric appliances to direct input electrical network carry out Series Design, to satisfy the requirement of various electrical appliances.
9, great overload capacity is arranged.
10, this product from 160 volts to 220 volts automatic Regulation in the phase voltage fluctuation range, do not need Artificial Control.Compare with present on-load tap-changing transformer, can reduce many troubles.
11, this product cost is low, and price is honest and clean.
Electromagnetic structure:
The main magnetic circuit system of this product constitutes two magnetic circuit systems of A, B by two differentiated slightly four column iron core magnetic circuits of physical dimension.
Wherein, the A magnetic circuit system is main magnetic circuit system, and the B magnetic circuit system is the auxiliary energy storage system, as shown in Figure 1.Shown in Figure 2 is main electromagnetic circuit system, and each magnetic circuit system has only on three iron props winding is arranged, and on the 4th iron prop without any winding.
As shown in Figure 3, the elementary winding of A system is Woa, Wob, Woc, and secondary winding is W
1a, W
1b, W
1c, their top and end are associated in three phase mains A, B, C end.The A system pays limit winding end and is connected on the three phase mains, and the other end is connected on output a, b, c.
The elementary winding of B system is that W ' oa, W ' ob, W ' oc do not have secondary winding in main circuit, and the direct current winding is arranged.The elementary winding of two systems is all formed the star winding at last.
On macroscopic view, this is the buck autotransformer of forming with two sections magnetic circuits, and power supply A, B, C become central shaft heads, and a, b, c are top, the recomposition star circuit.But when using is the autotransformer circuit of a boost type.
Fig. 4 is the DC control circuit figure of this product, on the iron prop of each main winding of A system, is wound with three-phase again and pays limit winding W
2a, W
2b, W
2c, notice that they are series aiding connections.Then by the output of ab end.Such effect, be in every phase direct current winding all because of magnetic circuit in synthetic the equalling zero that produce this three-phase of alternating current impression electromotive force of the alternation of three-phase magnetic flux, become a pure direct current winding.Because the direct current direction is identical,, make its magnetic flux constitute the loop so after each iron prop magnetic flux addition, the road of being close to magnetic circuit must be arranged.This is the reason that why will add an iron prop magnetic circuit.And as can be seen, only by direct current flux, it is a dc circuit magnetic loop to this magnetic circuit.And do not pass through exchange flux.
Direct current in the B system adds winding W
3a, W
3b, W
3cStructure function, operation principle is the same with the A system, so do not repeat.Its dc terminal, promptly input is c, d.
Fig. 5 is the situation of each magnetic flux change in mutually, the reflection in A, B magnetic circuit system.Now be described as follows: (at μ=constant)
1, GH is a phase voltage when 160 volts-220 volts change, the situation of change of every phase magnetic flux.If in the time of 220 volts, magnetic flux is 100%, so when 160 volts of voltage, has had only 72.72% specified magnetic flux.
2, GE is the intrasystem magnetic flux of A, in whole grid voltage change process, no matter is that outside " squeezing " comes in, or old magnetic flux changes by this oblique line in this magnetic circuit.
3, AH be the intrasystem magnetic flux of B in whole grid voltage change process, no matter be that the outside edges in, or old magnetic flux in this magnetic circuit, all should change by this oblique line.
4, BD is an imaginary line, so represent with chain-dotted line, it is the center line of GH, and the intrasystem magnetic flux of expression A and B distributes.
5, the △ CDE magnetic flux scope of being surrounded is an expression electrical network phase voltage during from 185 volts-220 volts, should be to the magnetic flux of B system transfer, the just magnetic flux that should deduct from the A system from the A system.
6, the △ ABC magnetic flux scope of being surrounded is an expression electrical network phase voltage during from 160 volts-185 volts, should be to the magnetic flux of A system transfer, the just magnetic flux that should deduct from system, clearly △ CDE＞△ ABC from the B system.Many from A system button, the lacking of benefit.
Fig. 6 is the flux change situation in the explanation A system, when 185-220 lies prostrate, and φ
1Straight line descends, but during 160-185 volt phase voltage, is the magnetic flux △ φ that is turned over by the B system.
Fig. 7 is the situation that this product is added power.Supplemental capacity maximum when phase voltage is 160 volts is zero and add power 220 volts the time.Fig. 8 illustrates the external characteristic of alternating current-direct current in magnetic circuit.
Fig. 9 is the A of this product, the magnetic circuit system of B system, main circuit and direct current system circuit diagram.
Figure 10 is the auxiliary magnetic circuit system electromagnetic structure of this product, and it is by two " " font iron core TB
1And TB
2Form.TB
1W in the system
5Be elementary winding, produce magnetic flux φ
1, it is connected on 220 volts of the power supply phase voltages.Its pair limit winding W
4Produce AC electromotive force, its size has much relations with phase voltage.Behind rectifier bridge, be transformed into direct current and insert ab DC side winding, the magnetic permeability μ of control A magnetic circuit system
1W
6Be TB
2Elementary winding, it directly is connected on the phase voltage of output, produce to exchange and be φ
2W
7Be to stride around TB
1And TB
2The common AC Windings of two iron circuits.Through the dc output end that rectifier bridge produced, directly connect cd direct current winding by it, be used for controlling the magnetic permeability μ of B system
2But it should be noted: φ
1With φ
2With W
7During intersecting chain, one is forward, and one is oppositely, if φ
1=φ
2Words W
7Output voltage be zero.Because the phase voltage of output is constant, so with this normal voltage of voltage as a comparison.The φ that is produced
2Also be constant, have only φ
1Change with electrical network is passive.Work as φ
1More little then with φ
2Difference big more, W
7Output also big, be φ forever in design
1≤ φ
2This basic principle.
The operation principle of shown in Figure 11 product.This is when the phase voltage of three-phase voltage is 220 volts, the A magnetic circuit system that dots.Because of W
5Voltage be 220 volts, so W
4The voltage of induction is very high, and the dc magnetizing that is produced after rectification is also very strong.So magnetic permeability mu of A magnetic circuit system
AEqual zero, so Woa and W this moment
1a(other each mutually the same) institute distributes voltage and the voltage that induces is zero.Be equivalent to a lead, so the time A and a be a point basically.Therefore the phase voltage of a phase is identical with the phase voltage of A phase, is 220 volts.This is the situation when normally sending rated voltage.
Figure 12 is the phase voltage of three-phase when being minimum (as 160 volts time).Dotted the B magnetic circuit system.Because of W
5Voltage be 160 volts, W
4The voltage of being responded to is very low very low.DC control to the A magnetic circuit system is ineffective.Though the magnetic permeability mu in the A magnetic circuit system
AVery high, but really do not reach rated condition by the magnetic flux that Woa produced, have only about half.
But from Figure 10, W
6Still keep making φ than higher voltage
2-φ
1Very big difference is arranged.This difference makes W
7Produce very big induced voltage, through the very big direct electromotive force. of rectifier bridge output, it directly is used for controlling the B magnetic circuit system, makes its magnetic permeability mu
BVery little, approach zero, Woa is equivalent to hollow coil (W ' ob and W ' oc also be like this) so.160 of three-phase volts of phase voltages just are added on Woa, Wob and the Woc entirely like this, and the A system is at this moment because of magnetic permeability mu
AVery high, elementary in addition winding voltage raises so the magnetic flux in the magnetic circuit reaches rated value.And are autotransformers of forming boost type this moments 2, W
1aAlso obtain the magnitude of voltage show.The phase voltage of a phase has just reached 220 volts so.
Shown in Figure 13, represented operating state when being any one phase voltage state between 160 volts-220 volts of three phase network voltage.It has the explanation of two aspects: between 185 volts-220 volts, the voltage ratio that W ' oa distributes is higher such as three-phase phase voltage, and Woa distributes seldom, W
1aLast voltage is also only neither too much nor too little, and to play the voltage difference that remedies electrical network phase voltage deficiency just much of that; Three-phase voltage is if between the 160-185 volt for another example, and the voltage ratio that Woa ' distributes is less, and Woa distributes voltage a lot, W
1aThe many voltage of last generation.Many and the few voltage of this distribution is decided by W fully
4, W
7Direct current what.Make W in a word
1aPlayed the effect of the voltage difference that remedies electrical network phase voltage deficiency.
Figure 14 has showed the main electromagnetism of this product and the way circuit figure of auxiliary electrical magnetic circuit system.TB wherein
1And TB
2Shared iron core with one, do not have this legend to illustrate, W is described
7Be around TB
1And TB
2On the shared magnetic circuit.More complete for this product way circuit figure is represented, draw drawing 15 schematic diagrames for the purpose of knowing and represent W
7The operation principle explanation of product is more improved.
Claims (3)
1, a kind of " three-phase loaded automatic voltage-regulating device " is characterized in that: have main magnetic system road, the auxiliary magnetic circuit system.
2, three-phase loaded automatic voltage-regulating device as claimed in claim 1, it is characterized in that: the main magnetic circuit system has two four column iron core A, B that size is different, at second and third, on four iron props elementary winding and direct current winding are arranged, on the iron core A secondary winding is arranged, iron core B does not have, elementary winding top and the secondary winding end of iron core A are connected to three phase mains, and secondary winding top is connected to output, and elementary winding end links to each other with the elementary winding of iron core B.
3, three-phase loaded automatic voltage-regulating device as claimed in claim 1, it is characterized in that: the auxiliary magnetic circuit system has two " " sections cores, the elementary winding of iron core 1 is connected on 220 volts of the phase voltages, secondary winding links to each other with the iron core A of main magnetic circuit system direct current winding through rectifier bridge, the elementary winding of iron core 2 is connected to defeated end just, secondary winding crosses over 1 and 2, links to each other through the rectification winding of rectifier bridge with the iron core B of main magnetic circuit system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89215621 CN2064132U (en) | 1989-08-29 | 1989-08-29 | Three-phase load automatic voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89215621 CN2064132U (en) | 1989-08-29 | 1989-08-29 | Three-phase load automatic voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2064132U true CN2064132U (en) | 1990-10-17 |
Family
ID=4871179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89215621 Withdrawn CN2064132U (en) | 1989-08-29 | 1989-08-29 | Three-phase load automatic voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2064132U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314057C (en) * | 2002-11-11 | 2007-05-02 | 魏明 | Tranformer of voltage regulation and adjustment through control of main magnetic flux |
| CN107808752A (en) * | 2017-11-13 | 2018-03-16 | 刘建平 | A kind of four post stepless adjustable voltage transformers |
| CN108109830A (en) * | 2017-11-13 | 2018-06-01 | 刘建平 | A kind of four column permanent magnetism transformers |
-
1989
- 1989-08-29 CN CN 89215621 patent/CN2064132U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314057C (en) * | 2002-11-11 | 2007-05-02 | 魏明 | Tranformer of voltage regulation and adjustment through control of main magnetic flux |
| CN107808752A (en) * | 2017-11-13 | 2018-03-16 | 刘建平 | A kind of four post stepless adjustable voltage transformers |
| CN108109830A (en) * | 2017-11-13 | 2018-06-01 | 刘建平 | A kind of four column permanent magnetism transformers |
| CN108109830B (en) * | 2017-11-13 | 2020-05-15 | 河北华威电气设备科技有限公司 | Four-column permanent magnet transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20010052513A (en) | Solid State Transformer | |
| DE102012109293A1 (en) | Three-phase reactor power saving device | |
| CN112992510A (en) | Self-excitation type three-phase three-column type electrically-controlled reactor | |
| CN2064132U (en) | Three-phase load automatic voltage regulator | |
| CN209461280U (en) | Loaded capacity regulating voltage regulating transformer | |
| CN203415390U (en) | Voltage-regulating transformer for realizing high-insulation and large-current on-load voltage regulation | |
| CN2484625Y (en) | Voltage-regulating transformer | |
| CN112563002A (en) | Split-core type magnetic control intelligent transformer and control method | |
| CN2461196Y (en) | Magnetic tuning pressure control type asynchronous motor energy saver | |
| CN1314057C (en) | Tranformer of voltage regulation and adjustment through control of main magnetic flux | |
| CN111799074A (en) | Single-phase capacity-regulating and voltage-regulating transformer | |
| CN112750603A (en) | Voltage regulating method of high-voltage side of autotransformer, transformer body structure and autotransformer | |
| CN113035537B (en) | Pressure regulating type magnetic control phase modulator | |
| CN220232912U (en) | Vacuum on-load transformer | |
| CN215010084U (en) | Dry-type magnetic-moving voltage-regulating soft starting device main loop with compensation | |
| CN2497412Y (en) | Add-subtract type voltage regulator | |
| CN113035538B (en) | Static voltage regulator | |
| CN111708973B (en) | Magnetic control type controllable reactor forced excitation multiple value method | |
| CN2201717Y (en) | Equivalent balance transformer | |
| CN2115553U (en) | Three-phase unbreaking current step-regulating voltage regulator | |
| CN2492935Y (en) | Low-voltage inductive electric appliance with capacitve compensation | |
| CN2397581Y (en) | Flux-regulating transformer | |
| JPH01222319A (en) | Automatic power factor controller for inductive load | |
| CN111192750A (en) | Electrical wiring method of multistage variable-capacity power equipment | |
| CN88200403U (en) | Three-phase stepless voltage regulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |