CN2595066Y - Automatic feeder line voltage regulator - Google Patents
Automatic feeder line voltage regulator Download PDFInfo
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- CN2595066Y CN2595066Y CN 02292527 CN02292527U CN2595066Y CN 2595066 Y CN2595066 Y CN 2595066Y CN 02292527 CN02292527 CN 02292527 CN 02292527 U CN02292527 U CN 02292527U CN 2595066 Y CN2595066 Y CN 2595066Y
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Abstract
The utility model discloses an automatic feeder line voltage regulating device, which can be used for regulating voltage of a specific line. The utility model is composed of a triphase autotransformer, a triphase on-load voltage regulating tap switch, and an automatic voltage regulating controlling device. The voltage regulating device is installed in the middle part of a feeder line or a place with lower line voltage, the line voltage is regulated within a wider range so as to ensure the supply voltage of users, and the line loss of a network is reduced. The device is especially suitable for a longer line or a line with a large line drop which is evoked by a larger burden. In addition, the utility model can also be installed on the outlet line side of a substation transformer, and is used for a substation of which the main transformer has no voltage regulating ability.
Description
One, affiliated technical field
The utility model belongs to the electroporation field, relates to a kind of voltage regulator, and is a kind of especially specially for adjusting the feeder line automatic voltage regulator by voltage controller control that feeder line voltage designs.This device is applicable to because of big long, the high feeder line that causes that line drop is bigger of line loss of circuit of load, also can be installed in transforming plant main transformer depressor outlet side, is used for the transformer station that main transformer does not possess the loaded automatic voltage-regulating ability.
Two, background technology
At present, in China 3KV～35KV electrical network because round the clock, season load variations bigger, the influence of factors such as skewness weighing apparatus and idle large percentage causes that line electricity is pressed with bigger fluctuation.The reduction of voltage can cause the equipment undercapacity or undesired, the too high voltage of working can influence the safety of the insulation and the electricity consumption of equipment again.Because the difference of supply network is applicable to that external single-phase voltage regulating device is not suitable for China, for example, country such as the U.S. adopts the single-phase voltage regulating mode; And domestic existing regulator is to change output voltage or switched capacitor compensating reactive power by adjusting transforming plant main transformer depressor load tap changer, for example the disclosed three-phase power Loading voltage regulator of Chinese patent CN2031153U.Under this adjustment mode, the voltage of transformer station's power supply area all changes, the foundation of regulating can only be to be benchmark with the substation bus bar, can not guarantee effective adjustment of part circuit voltage fluctuation, and it is also bigger to main transformer safe operation influence frequently to adjust the main transformer tap.
Three, summary of the invention
Weak point in view of above prior art existence, the purpose of this utility model is, providing a kind of can carry out the feeder line automatic voltage regulator that voltage is adjusted to specific circuit, and it can be adjusted transformer voltage ratio automatically and guarantee to keep the constant of output voltage when input changes.
To achieve these goals, the technical scheme that technical solution problem of the present utility model is adopted is: the feeder line automatic voltage regulator, comprise the 3-phase autotransformer and the controller that have on-load shunting switch, be characterized in, line voltage distribution arrives tap the series coil from input behind reactor and balance coil, series coil is exported through load sleeve by reversing switch, be connected to the detection current input terminal of controller behind the line that current transformer passes with reversing switch links to each other, on the line that shunt winding one terminates at reversing switch links to each other, an other end is connected on the common cannula, be input to the voltage detecting control end of controller after control winding and the shunt winding coupling, adjust transformer voltage ratio by controller and guarantee when input changes, to keep the constant of output voltage.
Some other characteristics of the present utility model are, described controller comprises: a CPU is connected with power supply, RS485/232 communication interface part, wireless communication section, sampling voltage signal condition part, tap position signal processing, sampling section, tap position importation, motor-driven part, LED demonstration and keyboard, the output of tap position binary-coded decimal, the output of reporting to the police respectively on the CPU.
Controller both can be regulated output voltage on the former limit of autotransformer by shunting switch, also can be at the secondary-side regulation output voltage of autotransformer.
Effect of the present utility model is,
1) adopt the autocoupling type pressure adjusting structure, installed capacity is big, and volume is little, can set up between two bars of circuit;
2) there is balance coil inside, makes the regulation stall of shunting switch become original 2 times, can also eliminate circulation, reduces the infringement to device.
3) voltage transformer is installed, is changed from the motion tracking input voltage and adjust output voltage, voltage is adjusted precision height, reliable in action;
4) current transformer is installed, monitoring circuit load condition in real time, overload protection (being overcurrent protection function);
5) the voltage regulator controllers Control work adopts the technical grade control chip, the reliability height, and antijamming capability is strong, and is flexible, can adapt to outdoor adverse circumstances;
6) limit signal carries out pressure regulation action locking about the utilization, prevents the misoperation that may occur under the variety of way.
7) signal of controller shunting switch state has improved the anti-jamming capacity of circuit by the photoisolator input unit
8) simple in structure, be convenient to safeguard and installation.
Four, description of drawings
The phase structure schematic diagram on the former limit of Fig. 1 adjusting autotransformer of the present utility model;
What wherein number in the figure was represented is, 1. mains side sleeve pipe, 2. reversing switch, 3. series coil, 4. current transformer, 5. load sleeve, 6. reactor, 7. balance coil, 8. shunt winding, 9. common cannula, 10. controller, 11. control windings, 12. input side, 13. output Side, N is a tap, by with N1, N2, N3, N4, N5, N6, N7, N8 links to each other to come regulation voltage.
The phase structure schematic diagram of Fig. 2 adjusting autotransformer of the present utility model secondary;
What wherein number in the figure was represented is, 1. mains side sleeve pipe, 2. reversing switch, 3. series coil, 4. current transformer, 5. load sleeve, 6. reactor, 7. balance coil, 8. shunt winding, 9. common cannula, 10. controller, 11. control windings, 12. input side, 13. output, N is a tap, by with N1, N2, N3, N4, N5, N6, N7, N8 links to each other to come regulation voltage.
Fig. 3 is a SVR-CL2 controller principle block diagram;
What wherein number in the figure was represented is 1. common port, 2. step-down, 3. boost 4. tap position binary-coded decimal output, the output of 5. reporting to the police, 6 motor-driven, 7.CPU, 8.LED shows and keyboard, 9.RS485 communication interface, 10. tap position signal processing, 11. sampling inputs, 12. wireless telecommunications, 13. the tap position input, 14. sampling voltage signal conditions, the input of 15. working powers;
Fig. 4 is the part of the circuit diagram of SVR-CL2 controller;
Wherein, (1) is SVR-CL2 controller tap position signal processing, and (2) are the motor-driven part;
Fig. 5 is that the circuit diagram of SVR-CL2 controller is a part of in addition;
Wherein, (3) are SVR-CL2 controller CPU and Control on Communication part, and (4) show and keyboard for LED, and (5) are SVR-CL2 controller signals conditioning partial circuit figure;
Five, embodiment
The utility model is described in further detail below in conjunction with embodiment that accompanying drawing and inventor provide.
According to the technical solution of the utility model, a kind of feeder line automatic voltage regulator is made up of 3-phase autotransformer that has on-load shunting switch and controller 10; Line voltage distribution arrives tap the series coil 3 from input behind reactor 6 and balance coil 7, series coil 3 is exported through load sleeve 5 by reversing switch 2, current transformer 4 passes the detection current input terminal that is connected to controller 10 behind the line that links to each other with reversing switch 2, shunt winding 8 one terminates on the line that links to each other with reversing switch 2, an other end is connected on the common cannula 9, be input to the voltage detecting control end of controller 10 after control winding 11 is coupled with shunt winding 8, adjust transformer voltage ratios by controller 10 and guarantee when input changes, to keep the constant of output voltage.
On load tap changer be can be under load-carrying situation the switch of changeover contact.The tap of series connection winding is connected on the different contacts of shunting switch, can the continuously-variable transformer no-load voltage ratio change its output voltage.
Controller adopts the metal cabinet, for inside provides the electromagnetic shielding good working environment, the controller control unit is 8 MCU and has adopted and touched button, carry out parameter setting and manual operation by touching button, parameter setting and show equal digitlization, therefore, it is convenient, fast, accurate, directly perceived that parameter is provided with, and man-machine dialog interface is good.
Controller is divided into six parts: the input of aanalogvoltage electric current, shunting switch and limit signal input, relay output control, microprocessor and RS485/232/ radio communication control section, display control section.Analog input is transformed to small-signal with the voltage and current of circuit and gives processor, considers the symmetry of circuit, and this device has only detected one road electric current and has been used for line build-out.The signal of shunting switch state can improve the anti-jamming capacity of circuit like this by the photoisolator input unit.In addition, also with the highest spacing and minimum spacing and neutral gear position input unit, utilize the correctness of these signals assurance tap change operation, and neutral gear position and neutral are designated as correct out of service the providing safeguard of voltage regulator.Output relay has bigger contact capacity, can directly drive the on load tap changer monophase machine, and rising and decline are controlled at and interlocking also is set on the mechanical contact is connected.Display control section comprises that LED shows and keyboard LED: show various data; Keyboard: select every function and various parameters are set.Control on Communication part can be carried out transfer of data by serial ports 485/232 or wireless telecommunications and host computer.
Below be the specific embodiment that the inventor provides, but the utility model is not limited to this embodiment.
Referring to Fig. 1, Fig. 1 phase structure schematic diagram of the present utility model.Voltage is connected to through balance coil 7 on the series connection winding 3 of on load tap changer by input side 12 inputs, is connected to outlet side 13 by reversing switch 2 then.Wherein, through the current signal that current transformer 4 collects, send into controller 10.
10 pairs of line voltage distribution situations of controller are analyzed, and the signal of giving an order is adjusted line voltage distribution, thereby guarantee that line voltage distribution is stable.
Fig. 3 is a SVR-CL2 controller principle block diagram, controller comprises: a CPU is connected with power supply, RS485 communication interface part, sampling voltage signal condition part, tap position signal processing, wireless communication section, sampling section, tap position importation, motor-driven part, LED demonstration and keyboard, the output of tap position binary-coded decimal, the output of reporting to the police respectively on the CPU.
Motor-driven part control is respectively boosted and step-down.
Principle of the present utility model is, tap position reads, shows and import the binary-coded decimal of tap position and one group correspondence position signal node one by one for CPU after isolating.Sampling voltage is through the instrument transformer input controller, through A/D conversion back for CPU reads, with user's setting adjust voltage ratio, if deviation is greater than set point, send the instruction of step-up/down after delaying time, the motor that drives the shunting switch head part makes shunting switch finish handover operation one time.Also can instruct input interface or by telemechanical by RS485/232, wireless communication interface inputting switching command.
Fig. 4 is the part of the circuit diagram of SVR-CL2 controller.(1) is SVR-CL2 controller tap position signal processing, is used to read in and handles the tap position signal, link to each other with CPU and Control on Communication part (3); (2) be the motor-driven part, by linking to each other with CPU and Control on Communication part (3), the output shunting switch signal that upgrades, lowers category, drive motors moves.
Fig. 5 is that the circuit diagram of SVR-CL2 controller is a part of in addition.(3) wherein are SVR-CL2 controller CPU and Control on Communication part, respectively with Fig. 4 in tap position signal processing (1), motor-driven part (2) and the LED among Fig. 5 shows and keyboard portion (4), signal condition partly (5) link to each other; Wherein, CPU and Control on Communication part the acting as of (3): the various data of CPU treatment system, Control on Communication then can by 232/485 or wireless module carry out transfer of data with host computer; Acting as of LED demonstration and keyboard portion (4): LED shows various data, and keyboard is then selected every function and various parameters are set; Acting as of (5) of signal condition part is modulated to the signal that CPU can discern with the outer samples signal.
Claims (3)
1, a kind of feeder line automatic voltage regulator is made up of 3-phase autotransformer that has on-load shunting switch and controller [10]; It is characterized in that, line voltage distribution arrives tap the series coil [3] from input behind reactor [6] and balance coil [7], series coil [3] is exported through load sleeve [5] by reversing switch [2], current transformer [4] passes the detection current input terminal that is connected to controller [10] behind the line that links to each other with reversing switch [2], shunt winding [8] one terminates on the line that links to each other with reversing switch [2], an other end is connected on the common cannula [9], be input to the voltage detecting control end of controller [10] after control winding [11] is coupled with shunt winding [8], adjust transformer voltage ratio by controller [10] and guarantee when input changes, to keep the constant of output voltage.
2, feeder line automatic voltage regulator according to claim 1, it is characterized in that, described controller [10] comprising: a CPU is connected with power supply, RS485/232 communication interface part, sampling voltage signal condition part, tap position signal processing, wireless communication section, sampling section, tap position importation, motor-driven part, LED demonstration and keyboard, the output of tap position binary-coded decimal, the output of reporting to the police respectively on the CPU;
Position of tapping switch reads, shows and import the binary-coded decimal of position of tapping switch and one group correspondence position signal node one by one for CPU after photoelectricity is isolated, sampling voltage is through the voltage transformer input controller, after the A/D conversion, read for CPU, adjust voltage ratio with the user sets, if deviation is greater than set point, send the instruction of step-up/down after delaying time, drive shunting switch and make shunting switch finish handover operation one time; Also can instruct input interface or by telemechanical by RS485/232, wireless communication interface inputting switching command.
3. feeder line automatic voltage regulator according to claim 1 is characterized in that, described voltage regulator both can be regulated output voltage on the former limit of autotransformer by shunting switch, also can be at the secondary-side regulation output voltage of autotransformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02292527 CN2595066Y (en) | 2002-12-26 | 2002-12-26 | Automatic feeder line voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02292527 CN2595066Y (en) | 2002-12-26 | 2002-12-26 | Automatic feeder line voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2595066Y true CN2595066Y (en) | 2003-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02292527 Expired - Fee Related CN2595066Y (en) | 2002-12-26 | 2002-12-26 | Automatic feeder line voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2595066Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882212A (en) * | 2012-10-22 | 2013-01-16 | 福建阳谷智能技术有限公司 | Novel adaptive medium-voltage adjusting and transforming system |
| CN104967125A (en) * | 2015-07-07 | 2015-10-07 | 浙江法拉迪电气有限公司 | High-precision distribution line regulator |
| CN105262391A (en) * | 2015-10-09 | 2016-01-20 | 株洲时代装备技术有限责任公司 | Multi-position voltage regulating transformer automatic voltage regulation method and automatic voltage regulation device |
| CN106252115A (en) * | 2016-09-28 | 2016-12-21 | 浙江法拉迪电气有限公司 | A kind of novel reactance type vacuum line pressure regulator |
| CN107710100A (en) * | 2015-06-22 | 2018-02-16 | 阿迪尔森·诺盖拉·德·阿劳约 | Voltage regulator stabilizer and tap changer polarity-reversing switch without transition reactor |
| CN107959295A (en) * | 2017-11-24 | 2018-04-24 | 国网北京市电力公司 | Circuit regulator |
| US10211644B2 (en) | 2016-02-26 | 2019-02-19 | Abb Schweiz Ag | System and method for regulating voltage in a low voltage power distribution system |
| CN111049148A (en) * | 2019-12-05 | 2020-04-21 | 国网辽宁省电力有限公司锦州供电公司 | Automatic adjustment control method for transformer tap |
-
2002
- 2002-12-26 CN CN 02292527 patent/CN2595066Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882212A (en) * | 2012-10-22 | 2013-01-16 | 福建阳谷智能技术有限公司 | Novel adaptive medium-voltage adjusting and transforming system |
| CN102882212B (en) * | 2012-10-22 | 2014-10-29 | 福建阳谷智能技术有限公司 | Novel adaptive medium-voltage adjusting and transforming system |
| CN107710100A (en) * | 2015-06-22 | 2018-02-16 | 阿迪尔森·诺盖拉·德·阿劳约 | Voltage regulator stabilizer and tap changer polarity-reversing switch without transition reactor |
| CN104967125A (en) * | 2015-07-07 | 2015-10-07 | 浙江法拉迪电气有限公司 | High-precision distribution line regulator |
| CN104967125B (en) * | 2015-07-07 | 2018-10-19 | 浙江法拉迪电气有限公司 | High-precision distribution line adjuster |
| CN105262391A (en) * | 2015-10-09 | 2016-01-20 | 株洲时代装备技术有限责任公司 | Multi-position voltage regulating transformer automatic voltage regulation method and automatic voltage regulation device |
| CN105262391B (en) * | 2015-10-09 | 2017-12-29 | 株洲中车时代电气股份有限公司 | A kind of more gear adjustable transformer automatic regulating voltage methods and automatic pressure regulating device |
| US10211644B2 (en) | 2016-02-26 | 2019-02-19 | Abb Schweiz Ag | System and method for regulating voltage in a low voltage power distribution system |
| CN106252115A (en) * | 2016-09-28 | 2016-12-21 | 浙江法拉迪电气有限公司 | A kind of novel reactance type vacuum line pressure regulator |
| CN107959295A (en) * | 2017-11-24 | 2018-04-24 | 国网北京市电力公司 | Circuit regulator |
| CN111049148A (en) * | 2019-12-05 | 2020-04-21 | 国网辽宁省电力有限公司锦州供电公司 | Automatic adjustment control method for transformer tap |
| CN111049148B (en) * | 2019-12-05 | 2021-08-06 | 国网辽宁省电力有限公司锦州供电公司 | Automatic adjustment control method for transformer tap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031224 Termination date: 20111226 |