CN202855519U - Power frequency single-phase resonance transformer used for calibrating and boosting voltage of voltage transformer on site - Google Patents
Power frequency single-phase resonance transformer used for calibrating and boosting voltage of voltage transformer on site Download PDFInfo
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- CN202855519U CN202855519U CN 201220583723 CN201220583723U CN202855519U CN 202855519 U CN202855519 U CN 202855519U CN 201220583723 CN201220583723 CN 201220583723 CN 201220583723 U CN201220583723 U CN 201220583723U CN 202855519 U CN202855519 U CN 202855519U
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- 238000004804 winding Methods 0.000 claims abstract description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses a power frequency single-phase resonance transformer used for calibrating and boosting the voltage of a voltage transformer on site. A resonance transformer main body (2) and a compensation adjustable reactor (14) are arranged inside a transformer outer shell (4), a coil (3) is arranged inside the resonance transformer main body (2), the coil (3) comprises a low-voltage winding (10), a medium-voltage compensation winding (12) and a high-voltage winding (9), and the medium-voltage compensation winding (12) is provided with a medium-voltage tap and is connected with the compensation adjustable reactor (14) through the medium-voltage tap. According to the power frequency single-phase resonance transformer, the medium-voltage tap is connected with the compensation adjustable reactor, an inductive component is introduced, the inside impedance of the resonance transformer can be adjusted, the resonance transformer is matched with a tested voltage transformer to form a resonance circuit, the input capacity of the low-voltage winding is effectively reduced, the size is small, the weight is light, the vehicle-mounting of the calibrating and voltage-boosting of the voltage transformer on site is achieved, and therefore the power frequency single-phase resonance transformer has wide application prospects.
Description
Technical field
The utility model relates to a kind of single-phase resonance transformer of power frequency that boosts for 500 kV voltage transformer field-checkings, belongs to high voltage T ﹠ D Technology field.
Background technology
Along with going deep into of power industry system reform, the accuracy of the high pressure metering devices such as electric power mutual-inductor is directly connected to the fair and just and fast-developing of electricity market, therefore the high pressure metering device such as electric power mutual-inductor need to detect by the rules requirement of " electric power mutual-inductor ", wherein the 500kV voltage transformer belongs to the high-tension apparatus of fixed installation formula, can only carry out Site Detection, to 500 kV voltage transformer verification the time, the power frequency of tested voltage transformer need to be risen to rated voltage, to simulate the actual motion state of tested voltage transformer, thereby compare with standard potential transformer and to realize the transmission of quantity value work of national standard, the voltage transformer of 500 kV electric pressures mostly is capacitance type potential transformer, be capacitive character during its electrician's frequency, and the scene when testing tested voltage transformer can't take out stitches, need to be with whole section bus or GIS pipeline together with boosting, thereby the input capacity of low pressure winding adds ground capacitance, should add the size of ground capacitance and the length of bus or GIS pipeline, the testing ground environment, overhead wire layouts etc. are relevant, it is a non-regularity, discrete numerical value can affect the accuracy of detection of 500kV voltage transformer.
The utility model content
The purpose of this utility model is to overcome the problems of the prior art, what provide is used for the single-phase resonance transformer of power frequency that the voltage transformer field-checking boosts, be equipped with middle pressure compensation winding to introduce perceptual weight, can adjust the internal driving of resonance transformer, and be complementary with tested voltage transformer capacitance and form the resonance test loop, effectively reduce the input capacity of low pressure winding, and volume is little, lightweight, be convenient to vehicle-mountedization that realize that the voltage transformer field-checking boosts, have a good application prospect.
In order to achieve the above object, the technical scheme that adopts of the utility model is:
A kind of single-phase resonance transformer of power frequency that boosts for the voltage transformer field-checking, comprise bushing and transformer case, described bushing is positioned at the top of transformer case, it is characterized in that: described transformer case inside is provided with resonance transformer main body and compensation Regulatable reactor, be provided with the line bag in the described resonance transformer main body, described line bag comprises low pressure winding, middle pressure compensation winding and high pressure winding, described middle pressure compensation winding is provided with middle pressure tap, and is connected with described compensation Regulatable reactor by middle pressure tap.
The aforesaid single-phase resonance transformer of power frequency that boosts for the voltage transformer field-checking, it is characterized in that: described line bag is connected by the securing member of insulating part with resonance transformer main body one side.
The aforesaid single-phase resonance transformer of power frequency that boosts for the voltage transformer field-checking, it is characterized in that: described line bag also comprises iron core column, described low pressure winding, middle pressure compensation winding and high pressure winding are looped around on the described iron core column from inside to outside successively.
The aforesaid single-phase resonance transformer of power frequency that boosts for the voltage transformer field-checking, it is characterized in that: described line bag is fixed on transformer case inside by line bag fixed mount.
The beneficial effects of the utility model are: the utility model provides is used for the single-phase resonance transformer of power frequency that the voltage transformer field-checking boosts, middle pressure compensation winding is equipped with, be connected with described compensation Regulatable reactor by middle pressure tap, introduce perceptual weight, can adjust the internal driving of resonance transformer, and be complementary with tested voltage transformer capacitance and form the resonance test loop, effectively reduce the input capacity of low pressure winding, and volume is little, lightweight, and be provided with vibration protection, be convenient to realize have a good application prospect vehicle-mountedization that 500 kV voltage transformer field-checkings are boosted.
Description of drawings
Fig. 1 is the structural representation of the single-phase resonance transformer of power frequency that boosts for the voltage transformer field-checking of the present utility model.
Fig. 2 is the structural representation of resonance transformer main body of the present utility model.
Fig. 3 is the structural representation of line bag of the present utility model.
Implication mark in the accompanying drawing is as follows:
1: bushing; 2: the resonance transformer main body; 3: the line bag; 4: transformer case; 5: securing member; 6: insulating part; 7: iron core column; 8: line bag fixed mount; 9: the high pressure winding; 10: the low pressure winding; 11: the compensation Regulatable reactor; 12: middle pressure compensation winding.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
Such as Fig. 1, Fig. 2 and shown in Figure 3, the single-phase resonance transformer of power frequency that boosts for the voltage transformer field-checking of the present utility model, be provided with middle pressure compensation winding in the line bag, introduce perceptual weight to adjust the internal driving of resonance transformer, thereby effectively reduce input capacity, dwindle the volume and weight of testing equipment and realize vehicle-mountedization, concrete structure comprises bushing 1 and transformer case 4, bushing 1 is positioned at the top of transformer case 4, transformer case 4 inside are provided with resonance transformer main body 2 and compensation Regulatable reactor 11, be provided with line bag 3 in the resonance transformer main body 2, described line bag 3 comprises low pressure winding 10, middle pressure compensation winding 12 and high pressure winding 9, middle pressure compensation winding 12 is provided with middle pressure tap, and be connected with described compensation Regulatable reactor 11 by middle pressure tap, compensation Regulatable reactor 11 can be passed through the size of its air gap and adjust inductance value, change the internal driving of whole resonance transformer, make the internal driving of resonance transformer be perceptual state, the tested 500 kV voltage transformers that are capacitive with the benefit test loop form resonance condition, the input capacity of the low pressure winding of this moment is 1/Q times of high voltage winding pool-size, Q is the quality factor of test loop, effectively reduce the input capacity of low pressure winding, line bag 3 is connected by the securing member 5 of insulating part 6 with resonance transformer main body 2 one sides, line bag 3 also comprises iron core column 7, low pressure winding 10, middle pressure compensation winding 12 and high pressure winding 9 are looped around on the described iron core column 7 from inside to outside successively, line bag 3 is fixed on transformer case 4 inside by line bag fixed mount 8, line bag 3 compact conformations of design, volume is little, lightweight, be convenient to vehicle-mountedization that realize that the voltage transformer field-checking boosts, the line bag fixed mount 8 here, transformer case 4 and bushing 1 all possess vibration protection, and adopt the SF6 gas type to insulate, satisfy the needs of vehicle-mountedization design, have a good application prospect.
More than show and described basic principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. be used for the single-phase resonance transformer of power frequency that the voltage transformer field-checking boosts, comprise bushing (1) and transformer case (4), described bushing (1) is positioned at the top of transformer case (4), it is characterized in that: described transformer case (4) inside is provided with resonance transformer main body (2) and compensation Regulatable reactor (14), be provided with line bag (3) in the described resonance transformer main body (2), described line bag (3) comprises low pressure winding (10), middle pressure compensation winding (12) and high pressure winding (9), described middle pressure compensation winding (12) is provided with middle pressure tap, and is connected with described compensation Regulatable reactor (11) by middle pressure tap.
2. the single-phase resonance transformer of power frequency that boosts for the voltage transformer field-checking according to claim 1, it is characterized in that: described line bag (3) is connected with the securing member (5) of resonance transformer main body (2) one sides by insulating part (6).
3. the single-phase resonance transformer of power frequency that boosts for the voltage transformer field-checking according to claim 1, it is characterized in that: described line bag (3) also comprises iron core column (7), and described low pressure winding (10), middle pressure compensation winding (12) and high pressure winding (9) are looped around on the described iron core column (7) from inside to outside successively.
4. the single-phase resonance transformer of power frequency that boosts for the voltage transformer field-checking according to claim 1, it is characterized in that: described line bag (3) is fixed on transformer case (4) inside by line bag fixed mount (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583723 CN202855519U (en) | 2012-11-08 | 2012-11-08 | Power frequency single-phase resonance transformer used for calibrating and boosting voltage of voltage transformer on site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583723 CN202855519U (en) | 2012-11-08 | 2012-11-08 | Power frequency single-phase resonance transformer used for calibrating and boosting voltage of voltage transformer on site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202855519U true CN202855519U (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220583723 Expired - Lifetime CN202855519U (en) | 2012-11-08 | 2012-11-08 | Power frequency single-phase resonance transformer used for calibrating and boosting voltage of voltage transformer on site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202855519U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945739A (en) * | 2012-11-08 | 2013-02-27 | 江苏省电力公司电力科学研究院 | Power-frequency single-phase resonant transformer for calibration and boosting of voltage transformer |
| CN104569898A (en) * | 2015-01-04 | 2015-04-29 | 国家电网公司 | Fixing and voltage sharing device for vehicle-mounted standard voltage transformer used for verifying transformer of 500 kV |
-
2012
- 2012-11-08 CN CN 201220583723 patent/CN202855519U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945739A (en) * | 2012-11-08 | 2013-02-27 | 江苏省电力公司电力科学研究院 | Power-frequency single-phase resonant transformer for calibration and boosting of voltage transformer |
| CN104569898A (en) * | 2015-01-04 | 2015-04-29 | 国家电网公司 | Fixing and voltage sharing device for vehicle-mounted standard voltage transformer used for verifying transformer of 500 kV |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20130710 |
|
| RGAV | Abandon patent right to avoid regrant |