CN203338963U - Novel integrated high-voltage standard voltage transformer - Google Patents
Novel integrated high-voltage standard voltage transformer Download PDFInfo
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- CN203338963U CN203338963U CN2013203208233U CN201320320823U CN203338963U CN 203338963 U CN203338963 U CN 203338963U CN 2013203208233 U CN2013203208233 U CN 2013203208233U CN 201320320823 U CN201320320823 U CN 201320320823U CN 203338963 U CN203338963 U CN 203338963U
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Abstract
The utility model discloses a novel integrated high-voltage standard voltage transformer. The novel integrated high-voltage standard voltage transformer comprises coils, wherein the coils are formed by a primary winding and a secondary winding, the primary winding and the secondary winding are wound on an R-shaped iron core, and the secondary winding is a secondary winding with a tap. The number of turns of the primary winding and the number of turns of the secondary winding are determined according to a 220kV stand voltage transformer, the number of turns of a secondary winding of a 110kV standard voltage transformer is determined according to the number of turns of the secondary winding, and the number of turns of the secondary winding of the 110kV standard voltage transformer is two times that of the secondary winding of the 220kV standard voltage transformer. The novel integrated high-voltage standard voltage transformer can measure the 110kV standard voltage transformer and the 220kV standard voltage transformer at the same time, the number of measuring devices is reduced, and frequent replacement of the devices is not needed in the process of testing. Due to the fact that the R-shaped iron core made of materials with the high magnetic flux density and the low loss is adopted, a magnetic path is good, stability is good, insulation and distribution uniformity of electric fields are taken into consideration by the design of the coils, flux leakage is low, the accuracy class can reach the 0.01 class.
Description
Technical field
The utility model is a kind of Special high-voltage standard potential transformer, is the part of electric-power metering checkout gear, belongs to high voltage T & D Technology field.
Background technology
Voltage transformer is the important component part of electric energy metrical, and its accuracy has played important function for the trade settlement that sends electricity and power supply department, therefore must be detected it.
The accuracy that is related to metering as the standard potential transformer of check voltage transformer, so its accuracy requirement is high, the linear requirement, zero load and load error are little, and it is high that stability is wanted.
The standard potential transformer electric pressure is corresponding with electric power system primary equipment electric pressure, be divided into 6kV, 10kV, 35kV, 110kV, 220kV, 500kV, 750kV, 1000kV etc., the accuracy of standard potential transformer is high, and 0.05 grade, 0.02 grade, 0.01 grade, 0.005 grade and 0.002 grade etc. are generally arranged; 110kV and 220kV are present common electric pressures, and the probability of instrument transformer that simultaneously needs to measure these two grades is very big, we generally can use respectively the standard potential transformer of 110kV and 220kV to be detected, the equipment of measuring like this is many, the process complexity of exchange device more during test, and workload is large, also there is the standard potential transformer of some 220kV grades can take into account the voltage transformer of measuring the 110kV grade, but the accuracy of measuring is not high, and volume is large, and weight is not light yet.
The utility model content
The purpose of this utility model is to provide a kind of novel integrated high-pressure standard potential transformer, and it is lightweight, and its accuracy is high.
In order to achieve the above object, the utility model solves the technical scheme that its technical problem adopts:
A kind of novel all-in-one high voltage standard voltage transformer, is characterized in that, comprises the line bag that winding being around on the R shaped iron core and secondary winding form, and secondary winding is the secondary winding with tap; Determine the number of turn of a winding and the number of turn of secondary winding according to the 220kV standard potential transformer, the number of turn that the number of turn of this winding is a common winding of 220kV, 110kV standard potential transformer; And, according to the number of turn of this secondary winding, determine the secondary winding number of turn of 110kV standard potential transformer, the number of turn of 110kV standard potential transformer secondary winding is two times of the 220kV standard potential transformer secondary winding number of turn.
A described winding is coiled into from inside to outside the multistage trapezoidal of successively reduction.
Described secondary winding is around in the surface of a described winding, forms the trapezoidal top layer of afterbody.
The line bag has two no-load voltage ratios,
the accuracy class of two no-load voltage ratios is 0.01 grade.
The utility model is originally by together with the design of 110kV0.01 grade standard voltage transformer and 220kV0.01 grade standard voltage transformer, totally one winding once, secondary tap design.Determine the number of turn of a winding by the needs of 220kV standard potential transformer, the number of turn of the common winding that this number of turn is 220kV, 110kV standard potential transformer, the number of turn of the secondary winding of 110kV is two times of the 220kV secondary winding number of turn, by special stable compensation way, 110kV standard potential transformer secondary is compensated again, make its error can reach requirement.The compensation way here is generally resistance R, capacitor C or inductance L, capacitor C, specifically determine as required, inductance L can adopt homemade linear inductance, its voltage linear degree can reach in 1%, capacitor C can adopt electrodeless low-loss ac capacitor, and resistance R adopts the noninductive coiling of alloy material to form.
The beneficial effect that the utility model reaches:
Novel all-in-one high voltage standard voltage transformer of the present utility model can be measured the voltage transformer of 110kV, two grades of 220kV simultaneously, has reduced the equipment of measuring, and does not need frequently more exchange device during test.What adopt is the R shaped iron core of high-magnetodensity, low-loss material, and magnetic circuit is good, and stability is high, and the design of line bag is not only considered insulation but also considered the distributing homogeneity of electric field, and the mode leakage field of line bag design is little, integrated
these two main no-load voltage ratios, and the accuracy class of two has all reached 0.01 grade.
The accompanying drawing explanation
Fig. 1 novel all-in-one high voltage standard voltage transformer overall schematic;
Fig. 2 is high-voltage line bag schematic diagram of the present utility model;
Fig. 3 is the essential portion of FIG. 2 vertical view;
Fig. 4 is sleeve structure schematic diagram of the present utility model;
Implication mark in accompanying drawing is as follows:
Fig. 1: ladle bowl 1, sleeve pipe 2, voltage equalizing ball 3, line bag 4, high pressure guide rod 5, iron core 6, iron core folder 7, handle 8;
Fig. 2: R shaped iron core 6, winding 9, secondary winding 10, radome 11;
Fig. 3: line bag 4, iron core 6, iron core folder 7, ladle bowl flange 12, sealing ring 13;
Fig. 4: the profile of sleeve pipe, structural shape.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figure 1,2,3, 4, voltage transformer of the present utility model is to use day steel R shaped iron core 6 coilings of special-purpose Japan, its good linearity, and the ratio of the voltage transformer 20%～120% of design and angular difference good linearity, not there will be sudden change.On this basis, adopt segmentation R, C compensation or L, C compensation technique, make its linearity of 10% to 20% a rated voltage be better than 0.005%, thereby guarantee that the overall accuracy grade can reach 0.01 grade.
The winding 9 and the secondary winding 10 that are around on R shaped iron core 6 form line bags 4, one time winding 9 is coiled into from inside to outside the multistage trapezoidal of successively reduction, this multistage trapezium structure can farthest reduce resistance and the leakage reactance of a winding under the condition that guarantees insulation distance, reduces the error of standard potential transformer.Secondary winding 10 is around in the surface of a described winding 9, forms the trapezoidal top layer of afterbody.The design of line bag 4 is not only considered insulation but also is considered the distributing homogeneity of electric field, and the mode leakage field of line bag design is little, has guaranteed fully
the error characteristics of these two electric pressures can meet 0.01 grade.
The utility model starts from the selection of iron core, just to miniaturization, lightweight, consider, make every effort to especially minimum structure, to adopt concentric circles axle construction and parallel electrode plate structure to make every effort to Electric Field Distribution even more, it is tight that minimizing iron circuit length and line bag thickness are made every effort to electromagnetic coupled, just taken into full account the voltage of compatible 220kV and two grades of 110kV from line bag design, and the accuracy that has guaranteed two line bags is all at 0.01 grade.
Claims (4)
1. a novel all-in-one high voltage standard voltage transformer, is characterized in that, comprises the line bag that winding being around on the R shaped iron core and secondary winding form, and secondary winding is the secondary winding with tap; Determine the number of turn of a winding and the number of turn of secondary winding according to the 220kV standard potential transformer, the number of turn that the number of turn of this winding is a common winding of 220kV, 110kV standard potential transformer; And, according to the number of turn of this secondary winding, determine the secondary winding number of turn of 110kV standard potential transformer, the number of turn of 110kV standard potential transformer secondary winding is two times of the 220kV standard potential transformer secondary winding number of turn.
2. novel all-in-one high voltage standard voltage transformer according to claim 1, is characterized in that, a described winding is coiled into from inside to outside the multistage trapezoidal of successively reduction.
3. novel all-in-one high voltage standard voltage transformer according to claim 1, is characterized in that, described secondary winding is around in the surface of a described winding, forms the trapezoidal top layer of afterbody.
4. novel all-in-one high voltage standard voltage transformer according to claim 1, is characterized in that, the line bag has two no-load voltage ratios,
the accuracy class of two no-load voltage ratios is 0.01 grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203208233U CN203338963U (en) | 2013-06-05 | 2013-06-05 | Novel integrated high-voltage standard voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203208233U CN203338963U (en) | 2013-06-05 | 2013-06-05 | Novel integrated high-voltage standard voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203338963U true CN203338963U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203208233U Expired - Lifetime CN203338963U (en) | 2013-06-05 | 2013-06-05 | Novel integrated high-voltage standard voltage transformer |
Country Status (1)
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| CN (1) | CN203338963U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325556A (en) * | 2013-06-05 | 2013-09-25 | 国家电网公司 | Novel high voltage standard integrated voltage transformer |
| CN107192974A (en) * | 2017-07-19 | 2017-09-22 | 云南电网有限责任公司电力科学研究院 | Integration voltage current standard transformer |
| CN113506676A (en) * | 2021-06-16 | 2021-10-15 | 云南电网有限责任公司 | Partial discharge-free self-boosting multi-transformation-ratio standard voltage transformer and test method |
-
2013
- 2013-06-05 CN CN2013203208233U patent/CN203338963U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325556A (en) * | 2013-06-05 | 2013-09-25 | 国家电网公司 | Novel high voltage standard integrated voltage transformer |
| CN107192974A (en) * | 2017-07-19 | 2017-09-22 | 云南电网有限责任公司电力科学研究院 | Integration voltage current standard transformer |
| CN107192974B (en) * | 2017-07-19 | 2023-06-09 | 云南电网有限责任公司电力科学研究院 | Integrated voltage and current standard transformer |
| CN113506676A (en) * | 2021-06-16 | 2021-10-15 | 云南电网有限责任公司 | Partial discharge-free self-boosting multi-transformation-ratio standard voltage transformer and test method |
| CN113506676B (en) * | 2021-06-16 | 2022-11-01 | 云南电网有限责任公司 | Partial discharge-free self-boosting multi-transformation-ratio standard voltage transformer and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee after: JIANGSU ELECTRIC POWER Co. Patentee after: State Grid Corporation of China Co-patentee after: JIANGSU ELECTRIC POWER COMPANY Research Institute Co-patentee after: WUHAN PANDIAN SCI-TECH CO.,LTD. Address before: 100761 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee before: JIANGSU ELECTRIC POWER Co. Patentee before: State Grid Corporation of China Co-patentee before: JIANGSU ELECTRIC POWER COMPANY Research Institute Co-patentee before: WUHAN PANDIAN TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |