CN204442006U - Y connects the balanced source-taking apparatus of voltage transformer open delta - Google Patents
Y connects the balanced source-taking apparatus of voltage transformer open delta Download PDFInfo
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- CN204442006U CN204442006U CN201520004737.0U CN201520004737U CN204442006U CN 204442006 U CN204442006 U CN 204442006U CN 201520004737 U CN201520004737 U CN 201520004737U CN 204442006 U CN204442006 U CN 204442006U
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Abstract
The utility model relates to a kind of to generating, auxiliary equipment in the station of distribution or power transformation provides the device of power supply, be specifically related to a kind of Y and connect the balanced source-taking apparatus of voltage transformer open delta, comprise three voltage transformers, be respectively voltage transformer A, B, C, three voltage transformer coils adopt star connection, voltage transformer A, B, the first siding ring head end of C respectively draws a wire, be respectively A line, B line, C line, three voltage transformer tail ends connect center line respectively, described voltage transformer A, B, C arranges an identical second siding ring respectively, be respectively coil a, coil b and coil c, the head end of optional two coils is as the two ends of power supply, the tail end of selected two coils is connected with tail end with not choosing the head end of coil respectively.The utility model structure is simple, easy to use, can ensure three-phase equilibrium, and have the effect absorbing harmonic wave while providing stable power supply.
Description
Technical field
The utility model relates to a kind of device auxiliary equipment in the station of generating, distribution or power transformation being provided to power supply, is specifically related to a kind of Y and connects the balanced source-taking apparatus of voltage transformer open delta.
Background technology
The small-power operating power at the station of existing generating, distribution or power transformation, is all provided by special 10/0.22kV transformer, special PT or single voltage transformer; When the power supply of three-phase and four-line (Y shape) system, by a wherein power supply of three voltage transformers, because three voltage transformer coils are separate individualities, can not directly from the power taking of three voltage transformer coils, if this power supply obtains from a certain phase line, three-phase electricity will be caused to power unbalanced, phase line power is bigger than normal, affects the certainty of measurement of the circuit amount of powering on metering device.In addition on the one hand, theoretically, the impedance of the load that each root in three-phase circuit connects is all identical with character, just say that in three circuit, load is symmetrical, the phase place between each phase current differs 120 each other, and the electric current sum flowing through center line in each moment is zero, but in fact multiple single-phase load receives the threephase load that forms in three-phase circuit can not full symmetric, there is harmonic wave, for ensureing stable power supply effect, needing harmonic carcellation.
Utility model content
For the deficiency in solving the problems of the technologies described above, the purpose of this utility model is: provide a kind of Y to connect the balanced source-taking apparatus of voltage transformer open delta, structure is simple, easy to use, three-phase equilibrium can be ensured while stable power supply is provided, and there is the effect absorbing harmonic wave.
The technical scheme that the utility model adopts for its technical problem of solution is:
Y connects the balanced source-taking apparatus of voltage transformer open delta, comprise three voltage transformers, be respectively voltage transformer A, voltage transformer B and voltage transformer C, three voltage transformer coils adopt star connection, voltage transformer A, the first siding ring head end of voltage transformer B and voltage transformer C respectively draws a wire, be respectively A line, B line, C line, three voltage transformer tail ends connect center line respectively, three voltage transformer secondary side coils arrange several, described voltage transformer A, voltage transformer B and voltage transformer C arrange an identical second siding ring respectively, be respectively coil a, coil b and coil c, the head end of optional two coils is as the two ends of power supply, the tail end of selected two coils is connected with tail end with not choosing the head end of coil respectively.
Be load supplying after the ingenious phase difference power taking utilized between three-phase electricity of the utility model, after both ends of power access load, effectively can regulate the imbalance of three-phase electricity, eliminate circuit harmonizing wave.The head end of optional two coils is as the two ends of power supply, one of them is chosen the tail end of coil and is not chosen first section of coil and be connected, another chooses the tail end of coil to be connected with not choosing the tail end of coil, if the voltage N between three coil head ends and tail end, the supply voltage then obtained will be 2N, so, obtain the supply power voltage of 220V if want, the voltage between only needing three coils head and the tail is set to 110V.If want the power supply obtaining other voltages, the magnitude of voltage between three coil head and the tail two ends only need be adjusted.
Wherein, preferred version is:
Access rectification circuit between described both ends of power, by rectification circuit, rectification is carried out to it, can power for DC load.
Accessing energy storage device between described both ends of power, temporarily stored by unnecessary electricity, is electricity consumption load supplying when needed.
Described energy storage device is storage battery, and storage battery can circulate and carry out charge and discharge, the charge and discharge of permission often, long service life.
Described storage battery connection control device and charge and discharge protective circuit, controller and charge and discharge protective circuit can available protecting storage batterys, avoid occurring overcharging or crossing putting, extend its useful life.
Compared with prior art, the utility model has following beneficial effect:
The utility model structure is simple, easy to use, three-phase equilibrium can be ensured while stable power supply is provided, and there is the effect absorbing harmonic wave, it is load supplying after the ingenious phase difference power taking utilized between three-phase electricity, after both ends of power access load, effectively can regulate the imbalance of three-phase electricity, eliminate circuit harmonizing wave, can by the power supply of rectifying device realization to DC load, also temporarily can be stored electricity by energy storage device, diverse in function, easy to use.
Accompanying drawing explanation
Fig. 1 the utility model embodiment 1 circuit structure diagram.
In figure: 1, coil a; 2, coil b; 3, coil c.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
Embodiment 1:
As shown in Figure 1, Y connects the balanced source-taking apparatus of voltage transformer open delta, comprise three voltage transformers, be respectively voltage transformer A, voltage transformer B and voltage transformer C, three voltage transformer coils adopt star connection, wherein, voltage transformer A, the first siding ring head end of voltage transformer B and voltage transformer C respectively draws a wire, be respectively A line, B line, C line, three voltage transformer tail ends connect center line respectively, three voltage transformer secondary side coils arrange several, described voltage transformer A, voltage transformer B and voltage transformer C arrange an identical second siding ring respectively, be respectively coil a1, coil b2 and coil c3, coil a1 head end and coil c3 head end are set to the two ends of power supply respectively, coil a1 tail end connects with coil b2 head end, coil b2 tail end connects with coil c3 tail end.
Wherein, between both ends of power, access rectification circuit, by rectification circuit, rectification is carried out to it, for DC load is powered; Accessing energy storage device between both ends of power, temporarily stored by unnecessary electricity, is electricity consumption load supplying when needed; Energy storage device is storage battery, and storage battery can circulate and carry out charge and discharge, the charge and discharge of permission often, long service life; Storage battery connection control device and charge and discharge protective circuit, controller and charge and discharge protective circuit can available protecting storage batterys, avoid occurring overcharging or crossing putting, extend its useful life.
The utility model structure is simple, easy to use, three-phase equilibrium can be ensured while stable power supply is provided, and there is the effect absorbing harmonic wave, it is load supplying after the ingenious phase difference power taking utilized between three-phase electricity, after both ends of power access load, effectively can regulate the imbalance of three-phase electricity, eliminate circuit harmonizing wave.Coil a1 head end and coil c3 head end are set to respectively the two ends of power supply, coil a1 tail end connects with coil b2 head end, coil b2 tail end connects with coil c3 tail end, if the voltage N between three coil head ends and tail end, the supply voltage then obtained will be 2N, so, the supply power voltage of 220V is obtained if want, voltage between only needing three coils head and the tail is set to 110V, if coil a head end and coil c tail end are as both ends of power, by coil a1, coil b2 and coil c3 in turn tail prime minister connects, three-phase equilibrium, the supply voltage obtained in theory will be 0, the source of getting cannot be realized.
Embodiment 2:
The present embodiment is on the basis of embodiment 1, change the connection mode of coil a1, coil b2 and coil c3, choose coil a1 and coil b2 head end as both ends of power, coil a1 tail end connecting coil c3 tail end, coil b2 tail end connecting coil c3 head end, the effect of realization is identical with embodiment 1.
The concrete connection mode of the utility model coil a, coil b and coil c is not limited to the description in above-described embodiment 1 and embodiment 2; suppose the voltage N between coil head end and tail end, as long as the connection mode realizing the output of 2N magnitude of voltage all falls into the utility model protection range.
Claims (5)
1. a Y connects the balanced source-taking apparatus of voltage transformer open delta, comprise three voltage transformers, be respectively voltage transformer A, voltage transformer B and voltage transformer C, three voltage transformer coils adopt star connection, voltage transformer A, the first siding ring head end of voltage transformer B and voltage transformer C respectively draws a wire, be respectively A line, B line, C line, three voltage transformer tail ends connect center line respectively, three voltage transformer secondary side coils arrange several, it is characterized in that, described voltage transformer A, voltage transformer B and voltage transformer C arrange an identical second siding ring respectively, be respectively coil a, coil b and coil c, the head end of optional two coils is as the two ends of power supply, the tail end of selected two coils is connected with tail end with not choosing the head end of coil respectively.
2. Y according to claim 1 connects the balanced source-taking apparatus of voltage transformer open delta, it is characterized in that, accesses rectification circuit between described both ends of power.
3. Y according to claim 1 and 2 connects the balanced source-taking apparatus of voltage transformer open delta, it is characterized in that, accesses energy storage device between described both ends of power.
4. Y according to claim 3 connects the balanced source-taking apparatus of voltage transformer open delta, and it is characterized in that, described energy storage device is storage battery.
5. Y according to claim 4 connects the balanced source-taking apparatus of voltage transformer open delta, it is characterized in that, described storage battery connection control device and charge and discharge protective circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004737.0U CN204442006U (en) | 2015-01-06 | 2015-01-06 | Y connects the balanced source-taking apparatus of voltage transformer open delta |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004737.0U CN204442006U (en) | 2015-01-06 | 2015-01-06 | Y connects the balanced source-taking apparatus of voltage transformer open delta |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204442006U true CN204442006U (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520004737.0U Expired - Fee Related CN204442006U (en) | 2015-01-06 | 2015-01-06 | Y connects the balanced source-taking apparatus of voltage transformer open delta |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109600050A (en) * | 2019-01-29 | 2019-04-09 | 重庆睿伊互感器研究院有限公司 | A kind of simple charge power supply of three-phase and four-line combination transformer |
-
2015
- 2015-01-06 CN CN201520004737.0U patent/CN204442006U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109600050A (en) * | 2019-01-29 | 2019-04-09 | 重庆睿伊互感器研究院有限公司 | A kind of simple charge power supply of three-phase and four-line combination transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20210106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |