CN105529163A - Automatic capacity regulation and voltage regulation combined type transformer system - Google Patents
Automatic capacity regulation and voltage regulation combined type transformer system Download PDFInfo
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- CN105529163A CN105529163A CN201510867891.5A CN201510867891A CN105529163A CN 105529163 A CN105529163 A CN 105529163A CN 201510867891 A CN201510867891 A CN 201510867891A CN 105529163 A CN105529163 A CN 105529163A
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Abstract
The invention relates to an automatic capacity regulation and voltage regulation combined type transformer system. The automatic capacity regulation and voltage regulation combined type transformer system comprises a transformer and a control system, wherein the transformer comprises a power distribution unit, a compensation unit and a transformer body for adjusting two different rated capacities; the power distribution unit and the compensation unit are connected with the corresponding ends of a coil in the transformer body through connecting lines; and the control system is used for controlling and connecting the transformer body, the power distribution unit and the compensation unit. The transformer system can automatically change the rated output capacity and output voltage of a terminal power distribution transformer by tracking load change and secondary voltage fluctuation, and also has multiple protection functions such as remote controllability as well as overcurrent, quick breaking and over-temperature for the transformer. Moreover, the transformer system can also realize automatic change for the output capacity and output voltage of the transformer according to the load change and network voltage, so that the no-load loss during the operation of the transformer is reduced, and the output voltage is stabilized.
Description
Technical field
The present invention relates to a kind of automatic capacity regulating voltage adjusting combined transformer system.
Background technology
The existing distribution transformer rated capacity of China is large and immobilize and declare peak load preparation by user.But the rural power grids of China often present the features such as the comparatively large and average load rate of seaonal load fluctuation is low, cause electric network reactive-load excessive, transformer noload losses is excessive relative to transmission line capability ratio, makes a large amount of waste of energy in the loss of network reactive current and transformer noload losses.The transformer of a small amount of adjustable capacity occurred in the market, can partly solve the problem, but its function singleness.
Summary of the invention
The object of this invention is to provide a kind of automatic capacity regulating voltage adjusting combined transformer system, in order to solve the problem of existing transformer function singleness.
For achieving the above object, the solution of the present invention comprises a kind of automatic capacity regulating voltage adjusting combined transformer system, described voltage transformer system comprises a transformer and a control system, described transformer comprises power supply unit, compensating unit and possesses the transformer body of adjustment two different rated capacities, described power supply unit is connected with the corresponding termination of the coil in transformer body by connection line with compensating unit, transformer body, power supply unit and compensating unit described in described control system control connection.
Described compensating unit comprises some roads phase splitting compensation branch road and branch road is mended altogether in some roads, on every bar phase splitting compensation branch road, string is provided with a split-phase capacitor and a corresponding switch, every bar to mend altogether on branch road string be provided with a corresponding switch and one mend electric capacity altogether, it is described that to mend electric capacity altogether in parallel by the series arm that two auxiliary capacitors are in series with one.
Described single unit of joining comprises some outlet circuits, and on every bar outlet circuit, all string is provided with residual current transformer.
Described control system comprises Intelligent electricity consumption management terminal, detection instrument transformer and intelligent integrated controller.
The termination of the termination of the high-tension coil in described transformer body and low-voltage coil each section of winding is connected with corresponding switch respectively, change the variable star angle of high pressure winding and the part serial parallel conversion of low pressure winding by the drive of switch on/off electric mechanism, realize the large low capacity intelligence of transformer and switch.
Each tap of the high-tension coil in described transformer body is connected with corresponding switch and each corresponding terminal respectively, first a secondary output voltage and an extreme difference voltage is preset during work, when there is fluctuation in line voltage, secondary voltage can change, when variable quantity exceedes extreme difference voltage, change the tap joint position of transformer primary side, secondary voltage is got back in predetermined voltage range.
Voltage transformer system provided by the invention by following the tracks of load variations and secondary voltage fluctuation change terminal power distribution transformer rated output capacity and output voltage automatically, can possess remote-controllable simultaneously, can carry out the multiple protection functions such as overcurrent, quick-break, excess temperature to transformer.And it can also realize the height of change according to payload and line voltage, automatically changes output capacity and the output voltage of transformer, reduce no-load loss when transformer runs and regulated output voltage.
Accompanying drawing explanation
Fig. 1 is the integrated connection figure of transformer and control system;
Fig. 2 is the internal electric figure of transformer;
Fig. 3 is the structure chart of transformer.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
As shown in Figure 1, this automatic capacity regulating voltage adjusting combined transformer system comprises a transformer and an intelligent power distribution cabinet for Comprehensive Control, and this transformer of intelligent power distribution cabinet control connection, for controlling this transformer.Intelligent automatic regulated capacity wherein in transformer and voltage switch are arranged in the fuel tank of transformer, be connected, efficiently solve Insulation Problems by interconnector with each termination of transformer coil; Intelligent power distribution cabinet is connected with oil tank of transformer with top fixed mount by bottom channel-section steel, achieves integral structure.
As shown in Figure 2, transformer comprises power supply unit, compensating unit and possesses the transformer body of adjustment two different rated capacities, power supply unit is connected with the corresponding termination of the coil in transformer body by connection line with compensating unit, and control system control connection transformer body, power supply unit and compensating unit.
High voltage side of transformer is linked into from 10kV inlet wire, by the transformer monitoring instrument transformer of automatic pondage and voltage, the capacity gear of automatic adjustment transformer and voltage gear, by the switching capacity of Power Factor Analysis self-regulation capacitor group, and in real time by the teletransmission of supply load state to backstage so that record, analyze, the stable and environment protecting and power-saving of adjustment power supply.Compensating unit comprises some roads phase splitting compensation branch road and branch road is mended altogether in some roads, on every bar phase splitting compensation branch road, string is provided with a split-phase capacitor and a corresponding switch, every bar to mend altogether on branch road string be provided with a corresponding switch and one mend electric capacity altogether, mend electric capacity altogether in parallel by the series arm that two auxiliary capacitors are in series with one.In the present embodiment, the number of phase splitting compensation branch road is 36 tunnels, and the number of mending branch road is altogether 2 tunnels.
Join single unit and comprise some outlet circuits, on every bar outlet circuit, all string is provided with residual current transformer.In fig. 2, Wh is three-phase electric energy meter, and DMT is low-voltage distribution office terminal, and K is negative control switch, and 1TA is total outlet current transformer, and KU is tap changer, and 2TA is metering current mulual inductor, and KS is capacitance switch, 3TA and 4TA is residual current transformer.
Transformer body can pondage and voltage automatically, wherein, when automatic pondage: the termination of the termination of the high-tension coil in transformer body and low-voltage coil each section of winding is connected with corresponding switch respectively, the variable star angle of high pressure winding and the part serial parallel conversion of low pressure winding is changed by the drive of switch on/off electric mechanism, realize the large low capacity intelligence of transformer according to the change of low-voltage load to switch, ensure that the reliability of power supply.
When automatic regulation voltage: each tap of the high-tension coil in transformer body is connected with corresponding switch and each corresponding terminal respectively, by the action of switch on/off electric mechanism, change the order of connection of each tap.First a secondary output voltage and an extreme difference voltage is preset during work, when fluctuation occurs line voltage, secondary voltage can change, when variable quantity exceedes extreme difference voltage, change the tap joint position of transformer primary side, secondary voltage is got back in predetermined voltage range.Intelligent integrated packet type switch, and public power pneumatic operating mechanism, decrease the volume of switch and reduce production cost.
The inner tap of high-tension coil and HV Terminal joint are received on intelligent automatic regulated integral switch, when the inner tap of high-tension coil according to the real-time regulation output voltage of voltage ripple of power network under on-load state, can ensure the reliable power supply of user; Be transformed to star by HV Terminal by corner connection to connect, low-voltage terminal three sections of coils change series connection into by parallel connection, realize transformer capacity changed to low capacity by Large Copacity by regulating high-low pressure winding above.
In Fig. 3,1 is high tension terminal, and 2 mix for transformer hangs, 3 is low-voltage electricity larceny prevention guard shields, and 4 is intelligent monitoring units, and 5 is metering current mulual inductors, 6 is low-pressure line-outgoing rows, and 7 is the meticulous compensation of low-voltage reactive power, and 8 is ammeter and terminal location, 9 is switching capacitor contactors, 10 is miniature circuit breakers, and 11 is metering junction boxes, and 12 is distribution management terminals, 13 is common benefit shunt capacitors, and 14 is GPRS communication module.
Intelligent power distribution cabinet comprises Intelligent electricity consumption management terminal, detection instrument transformer and intelligent integrated controller; detect the output current of transformer and output voltage by instrument transformer and decide switch whether action as the control signal of controller; utilize terminal control unit to coordinate electricity management terminal, intelligent load switch simultaneously, realize long-range GPRS and control and overcurrent, excess temperature, under-voltage etc. multiple protection functions.The possessing remote-controllable, the multiple protection functions such as overcurrent, quick-break, excess temperature can be carried out to transformer of these controllers.
Be presented above concrete execution mode, but the present invention is not limited to described execution mode.Basic ideas of the present invention are above-mentioned basic scheme, and for those of ordinary skill in the art, according to instruction of the present invention, designing the model of various distortion, formula, parameter does not need to spend creative work.The change carried out execution mode without departing from the principles and spirit of the present invention, amendment, replacement and modification still fall within the scope of protection of the present invention.
Claims (6)
1. an automatic capacity regulating voltage adjusting combined transformer system, it is characterized in that, described voltage transformer system comprises a transformer and a control system, described transformer comprises power supply unit, compensating unit and possesses the transformer body of adjustment two different rated capacities, described power supply unit is connected with the corresponding termination of the coil in transformer body by connection line with compensating unit, transformer body, power supply unit and compensating unit described in described control system control connection.
2. automatic capacity regulating voltage adjusting combined transformer system according to claim 1, it is characterized in that, described compensating unit comprises some roads phase splitting compensation branch road and branch road is mended altogether in some roads, on every bar phase splitting compensation branch road, string is provided with a split-phase capacitor and a corresponding switch, every bar to mend altogether on branch road string be provided with a corresponding switch and one mend electric capacity altogether, it is described that to mend electric capacity altogether in parallel by the series arm that two auxiliary capacitors are in series with one.
3. automatic capacity regulating voltage adjusting combined transformer system according to claim 1, is characterized in that, described in join single unit and comprise some outlet circuits, on every bar outlet circuit, all string is provided with residual current transformer.
4. automatic capacity regulating voltage adjusting combined transformer system according to claim 1, is characterized in that, described control system comprises Intelligent electricity consumption management terminal, detection instrument transformer and intelligent integrated controller.
5. automatic capacity regulating voltage adjusting combined transformer system according to claim 1, it is characterized in that, the termination of the termination of the high-tension coil in described transformer body and low-voltage coil each section of winding is connected with corresponding switch respectively, change the variable star angle of high pressure winding and the part serial parallel conversion of low pressure winding by the drive of switch on/off electric mechanism, realize the large low capacity intelligence of transformer and switch.
6. automatic capacity regulating voltage adjusting combined transformer system according to claim 1, it is characterized in that, each tap of the high-tension coil in described transformer body is connected with corresponding switch and each corresponding terminal respectively, first a secondary output voltage and an extreme difference voltage is preset during work, when fluctuation occurs line voltage, secondary voltage can change, when variable quantity exceedes extreme difference voltage, change the tap joint position of transformer primary side, secondary voltage is got back in predetermined voltage range.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510867891.5A CN105529163A (en) | 2015-12-02 | 2015-12-02 | Automatic capacity regulation and voltage regulation combined type transformer system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510867891.5A CN105529163A (en) | 2015-12-02 | 2015-12-02 | Automatic capacity regulation and voltage regulation combined type transformer system |
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| CN105529163A true CN105529163A (en) | 2016-04-27 |
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| CN201510867891.5A Pending CN105529163A (en) | 2015-12-02 | 2015-12-02 | Automatic capacity regulation and voltage regulation combined type transformer system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808755A (en) * | 2017-10-12 | 2018-03-16 | 安徽省神虹变压器股份有限公司 | A kind of method for tackling transformer current increase |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10304566A (en) * | 1997-04-25 | 1998-11-13 | Hitachi Ltd | Power facility having three-winding transformer of different transformation ratios |
| CN103219137A (en) * | 2013-03-26 | 2013-07-24 | 国家电网公司 | Self-adapted load type distribution transformer |
| CN203983006U (en) * | 2014-06-25 | 2014-12-03 | 国家电网公司 | Capacity and pressure regulating three-phase transformer |
| CN104485215A (en) * | 2014-12-25 | 2015-04-01 | 贵州电力试验研究院 | On-load capacitance regulating and on-load voltage regulating distribution transformer |
| CN204303532U (en) * | 2014-11-28 | 2015-04-29 | 深圳市宏达业电子有限公司 | A kind of intelligent loaded capacity-regulated automatic Regulation Long-distance Control transformer |
| CN204348496U (en) * | 2015-01-27 | 2015-05-20 | 陕西四方华能电气设备有限公司 | A kind of intelligent loading capacitance-regulating distribution transformer |
| CN204442008U (en) * | 2014-11-30 | 2015-07-01 | 国家电网公司 | A kind of intelligent type low-voltage comprehensive distribution cabinet |
-
2015
- 2015-12-02 CN CN201510867891.5A patent/CN105529163A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10304566A (en) * | 1997-04-25 | 1998-11-13 | Hitachi Ltd | Power facility having three-winding transformer of different transformation ratios |
| CN103219137A (en) * | 2013-03-26 | 2013-07-24 | 国家电网公司 | Self-adapted load type distribution transformer |
| CN203983006U (en) * | 2014-06-25 | 2014-12-03 | 国家电网公司 | Capacity and pressure regulating three-phase transformer |
| CN204303532U (en) * | 2014-11-28 | 2015-04-29 | 深圳市宏达业电子有限公司 | A kind of intelligent loaded capacity-regulated automatic Regulation Long-distance Control transformer |
| CN204442008U (en) * | 2014-11-30 | 2015-07-01 | 国家电网公司 | A kind of intelligent type low-voltage comprehensive distribution cabinet |
| CN104485215A (en) * | 2014-12-25 | 2015-04-01 | 贵州电力试验研究院 | On-load capacitance regulating and on-load voltage regulating distribution transformer |
| CN204348496U (en) * | 2015-01-27 | 2015-05-20 | 陕西四方华能电气设备有限公司 | A kind of intelligent loading capacitance-regulating distribution transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808755A (en) * | 2017-10-12 | 2018-03-16 | 安徽省神虹变压器股份有限公司 | A kind of method for tackling transformer current increase |
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Application publication date: 20160427 |