CN209151008U - A kind of transformer contactless intelligent on-load voltage regulation system based on high side voltage signal acquisition - Google Patents
A kind of transformer contactless intelligent on-load voltage regulation system based on high side voltage signal acquisition Download PDFInfo
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- CN209151008U CN209151008U CN201821415814.1U CN201821415814U CN209151008U CN 209151008 U CN209151008 U CN 209151008U CN 201821415814 U CN201821415814 U CN 201821415814U CN 209151008 U CN209151008 U CN 209151008U
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- 230000003750 conditioning effect Effects 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model provides a kind of transformer contactless intelligent on-load voltage regulation system based on high side voltage signal acquisition, and the on-load voltage regulation system includes high voltage side of transformer tap, voltage acquisition unit, pressure unit, signal conditioning unit, central control unit, control execution unit, display unit, storage unit and key-press input unit；The on-load voltage regulation system is by acquiring the voltage between the high voltage side of transformer tap, and the voltage and preset voltage range are compared, control execution unit working condition described in real-time control, and then control the conducting and disconnection of the sub-connecting switch of transformer, the no-load voltage ratio for changing the transformer realizes load tapchanging purpose.The utility model provides a kind of transformer contactless intelligent on-load voltage regulation system based on high side voltage signal acquisition, it is ensured that transformer output voltage with grid voltage change, not ensure that the stability of output voltage.
Description
Technical field
The utility model belongs to electrical equipment technical field, in particular to a kind of change based on high side voltage signal acquisition
Depressor contactless intelligent on-load voltage regulation system.
Background technique
With the continuous development of science and technology, electrical equipment is more and more, and the diversification of load results in system voltage
Fluctuation, is generally stabilized the output voltage using power transformer on-load voltage regulation technology.
The technology of power transformer on-load voltage regulation at present is sampled from step down side, and tap switch is in transformer high-voltage
Side, control system are also controlled in low-pressure side, but when singlephase earth fault occurs for high voltage side of transformer or has lightning ingress
When wave, voltage control system part and tap switch will bear very high voltage, the damage of equipment is easy to cause, to solve this
Problem, the utility model proposes the schemes from high voltage side of transformer pressure, and use contactless tap switch, according to the electricity of acquisition
Press the working method of signal control tap switch, it is ensured that output voltage with grid voltage change, not ensure that the steady of output voltage
It is qualitative.
Utility model content
The utility model provides a kind of transformer contactless intelligent on-load voltage regulation system based on high side voltage signal acquisition
System, it is ensured that transformer output voltage with grid voltage change, not ensure that the stability of output voltage.
The utility model is specially a kind of transformer contactless intelligent on-load voltage regulation based on high side voltage signal acquisition
System, the on-load voltage regulation system include high voltage side of transformer tap, voltage acquisition unit, pressure unit, signal condition list
Member, central control unit, control execution unit, display unit, storage unit and key-press input unit, the high voltage side of transformer
It is tap and the voltage acquisition unit, the pressure unit, the signal conditioning unit, the central control unit, described
The connection of control execution unit annular, the central control unit also respectively with the display unit, the storage unit, described press
Key input unit is connected；The on-load voltage regulation system passes through the voltage acquired between the high voltage side of transformer tap, and
The voltage and preset voltage range are compared, control execution unit working condition described in real-time control, and then controlled
The conducting and disconnection for making the sub-connecting switch of transformer, change the no-load voltage ratio of the transformer, realize load tapchanging purpose.
The setting of relevant parameter is completed in the key-press input unit and the storage unit, display unit cooperation.
The sub-connecting switch of transformer uses anti-parallel thyristor, and the high-pressure side every phase of A, B, C three-phase windings coil is drawn
Three taps, respectively first grade of 105%UNShelves, second gear UNShelves and third gear 95%UNShelves, the voltage acquisition unit with
First grade of the high voltage side of transformer A phase winding is connected with two tap of second gear；The control execution unit is by the center
Control unit control, including relay and A.C. contactor, the ac contactor coil and the relay normally open contact string
Connection；First grade of the tap passes through first fuse, the first normally opened contact of the A.C. contactor and the tap switch
The tap of connection, the second gear is connected by second fuse with the tap switch, the tap warp of the third gear
Cross third fuse, the second normally opened contact of the A.C. contactor is connected with the tap switch.
The pressure unit uses isolated buck transformer, the alternating voltage of reduced output voltage 8V.
The signal conditioning unit includes rectification module, filter module, partial pressure clipping module and A/D conversion module, to defeated
The information entered is rectified, is filtered, dividing clipping and A/D conversion process, and d. c. voltage signal is exported.
Detailed description of the invention
Fig. 1 is a kind of transformer contactless intelligent on-load voltage regulation system based on high side voltage signal acquisition of the utility model
The structural schematic diagram of system.
Specific embodiment
The transformer contactless intelligent based on high side voltage signal acquisition a kind of to the utility model with reference to the accompanying drawing
The specific embodiment of on-load voltage regulation system elaborates.
As shown in Figure 1, the on-load voltage regulation system of the utility model includes high voltage side of transformer tap, voltage acquisition list
Member, pressure unit, signal conditioning unit, central control unit, control execution unit, display unit, storage unit and key are defeated
Enter unit, the high voltage side of transformer tap and the voltage acquisition unit, the pressure unit, the signal condition list
First, the described central control unit, the control execution unit annular connection, the central control unit also respectively with the display
Unit, the storage unit, the key-press input unit are connected；The on-load voltage regulation system is high by acquiring the transformer
The voltage between the tap of side is pressed, and the voltage and preset voltage range are compared, is controlled described in real-time control
Execution unit working condition, and then the conducting and disconnection of the sub-connecting switch of transformer are controlled, change the no-load voltage ratio of the transformer,
Realize load tapchanging purpose.
The setting of relevant parameter is completed in the key-press input unit and the storage unit, display unit cooperation.
The sub-connecting switch of transformer uses anti-parallel thyristor, and the high-pressure side every phase of A, B, C three-phase windings coil is drawn
Three taps, respectively first grade of 105%UNShelves, second gear UNShelves and third gear 95%UNShelves, the voltage acquisition unit with
First grade of the high voltage side of transformer A phase winding is connected with two tap of second gear；The control execution unit is by the center
Control unit control, including relay and A.C. contactor, the ac contactor coil and the relay normally open contact string
Connection；First grade of the tap passes through first fuse, the first normally opened contact of the A.C. contactor and the tap switch
The tap of connection, the second gear is connected by second fuse with the tap switch, the tap warp of the third gear
Cross third fuse, the second normally opened contact of the A.C. contactor is connected with the tap switch.
The pressure unit uses isolated buck transformer, the alternating voltage of reduced output voltage 8V.
The signal conditioning unit includes rectification module, filter module, partial pressure clipping module and A/D conversion module, to defeated
The information entered is rectified, is filtered, dividing clipping and A/D conversion process, and d. c. voltage signal is exported.
Finally it should be noted that only illustrating the technical solution of the utility model in conjunction with above-described embodiment rather than limiting it
System.Those of ordinary skills in the art should understand that arriving, those skilled in the art can be to the specific implementation of the utility model
Mode is modified or replaced equivalently, but these modifications or change are being applied among pending claims.
Claims (5)
1. a kind of transformer contactless intelligent on-load voltage regulation system based on high side voltage signal acquisition, which is characterized in that institute
Stating on-load voltage regulation system includes high voltage side of transformer tap, voltage acquisition unit, pressure unit, signal conditioning unit, center
Control unit, control execution unit, display unit, storage unit and key-press input unit, the high voltage side of transformer tap
It is held with the voltage acquisition unit, the pressure unit, the signal conditioning unit, the central control unit, the control
Row unit annular connection, the central control unit also respectively with the display unit, the storage unit, the key-press input
Unit is connected；The on-load voltage regulation system passes through the voltage acquired between the high voltage side of transformer tap, and to described
Voltage is compared with preset voltage range, control execution unit working condition described in real-time control, and then described in control
The conducting and disconnection of the tap switch of transformer, change the no-load voltage ratio of the transformer, realize load tapchanging purpose.
2. a kind of transformer contactless intelligent on-load voltage regulation based on high side voltage signal acquisition according to claim 1
System, which is characterized in that relevant parameter is completed in the key-press input unit and the storage unit, display unit cooperation
Setting.
3. a kind of transformer contactless intelligent on-load voltage regulation based on high side voltage signal acquisition according to claim 2
System, which is characterized in that the sub-connecting switch of transformer uses anti-parallel thyristor, and high-pressure side A, B, C three-phase windings coil is every
Mutually draw three taps, respectively first grade of 105%UNShelves, second gear UNShelves and third gear 95%UNShelves, the voltage are adopted
Collection unit is connect with first grade of the high voltage side of transformer A phase winding and two tap of second gear；The control execution unit by
The central control unit control, including relay and A.C. contactor, the ac contactor coil and the relay are normal
Open contact series；First grade of the tap is by first fuse, the first normally opened contact of the A.C. contactor and described
The tap of tap switch connection, the second gear is connected by second fuse with the tap switch, the third gear
Tap is connected by third fuse, the second normally opened contact of the A.C. contactor with the tap switch.
4. a kind of transformer contactless intelligent on-load voltage regulation based on high side voltage signal acquisition according to claim 3
System, which is characterized in that the pressure unit uses isolated buck transformer, the alternating voltage of reduced output voltage 8V.
5. a kind of transformer contactless intelligent on-load voltage regulation based on high side voltage signal acquisition according to claim 4
System, which is characterized in that the signal conditioning unit includes rectification module, filter module, partial pressure clipping module and A/D modulus of conversion
Block rectifies the information of input, is filtered, dividing clipping and A/D conversion process, exporting d. c. voltage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821415814.1U CN209151008U (en) | 2018-08-31 | 2018-08-31 | A kind of transformer contactless intelligent on-load voltage regulation system based on high side voltage signal acquisition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821415814.1U CN209151008U (en) | 2018-08-31 | 2018-08-31 | A kind of transformer contactless intelligent on-load voltage regulation system based on high side voltage signal acquisition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209151008U true CN209151008U (en) | 2019-07-23 |
Family
ID=67266796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821415814.1U Active CN209151008U (en) | 2018-08-31 | 2018-08-31 | A kind of transformer contactless intelligent on-load voltage regulation system based on high side voltage signal acquisition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209151008U (en) |
-
2018
- 2018-08-31 CN CN201821415814.1U patent/CN209151008U/en active Active
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