CN203552923U - High-voltage current device - Google Patents
High-voltage current device Download PDFInfo
- Publication number
- CN203552923U CN203552923U CN201320638724.XU CN201320638724U CN203552923U CN 203552923 U CN203552923 U CN 203552923U CN 201320638724 U CN201320638724 U CN 201320638724U CN 203552923 U CN203552923 U CN 203552923U
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- secondary coil
- primary winding
- current device
- radome
- epoxy resin
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Abstract
The utility model relates to a high-voltage current device. The high-voltage current device comprises a secondary coil, a shielding cover, an insulation medium, a shell, a base, a secondary coil connection terminal, an iron core, a primary coil and a primary coil connection terminal, wherein the primary coil is arranged in the iron core in a penetrating manner or an equal ampere-turns manner, two ends of the primary coil are connected with the primary coil connection terminal, and the primary coil connection terminal is arranged on an upper platform of the high-voltage current device; the secondary coil is wound on the iron core, coils of the secondary coil are isolated by adopting an insulation material, and every two adjacent layers of the secondary coil are also isolated by the same insulation material, the secondary coil connection terminal is arranged on a base of the high-voltage current device, and the shielding cover covers the secondary coil; the insulation medium is arranged between the shielding cover and the shell. The high-voltage current device can be applied to a high-voltage current booster or a high-voltage standard current transformer and has the advantages of high insulation strength, compact structure and the like.
Description
Technical field
The utility model relates to the high-tension current device that fills dielectric, particularly high voltage bearing current lifting device or high voltage bearing standard current transformer.
Background technology
In recent years, threephase current transformer and threephase potential transformer use in a large number in the electrical network of 35kV and following electric pressure, and they are used for large user and special change makes the voltage monitoring of critical point electric energy metrical and electrical network.Rise on August 1st, 2004 error test that stipulated three-phase combination transformer and threephase potential transformer in the JB/T10432-2004 < < three-phase combination transformer > > of enforcement and JB/T10433-2004 < < threephase potential transformer > > industry standard, temperature rise test and mutually interference test all should in the situation that applying three-phase voltage and three-phase current, carry out.But, the three-phase mutual inductor testing apparatus that testing agencies at different levels but do not adapt.For a long time, that three-phase combination transformer manufacturer or detection at different levels department adopt single plane method to carry out exfactory inspection, examination and week inspection, the in the situation that of low-voltage or low current, to current transformer loop or voltage transformer circuit adopt respectively to each apply mutually rated current or rated voltage method detect.Single plane method detects and mainly contains following several disadvantage:
(1) current transformer is to be operated in high pressure conditions, and detect, is at low-pressure state.
(2) voltage transformer is to be operated in current state, and detect, is at little current status.
(3) three-phase combination transformer is to move under three-phase state, and only detect, under single-phase, carries out.
(4) existing current transformer in combination transformer, has again voltage transformer, and under actual motion condition, the two works simultaneously, has each other electromagnetic field effects.
Carry out trichotomy and detect the high voltage bearing current lifting device of shortage or high voltage bearing standard current transformer.
Utility model content
When existing single plane method detects current transformer, standard current transformer, current lifting device are all to detect under low-voltage, large current conditions, existing standard current transformer, current lifting device all cannot tolerate high pressure, the utility model produces under such background, and a kind of high-tension current device of the present utility model can be high voltage bearing current lifting device or high voltage bearing standard current transformer.
A kind of high-tension current device, the utility model is characterised in that: comprise secondary coil, radome, dielectric, shell, base, secondary coil binding post, iron core, primary winding, primary winding binding post, its syndeton is: primary winding by punching or etc. ampere-turn method be located in iron core, primary winding two ends are connected with primary winding binding post, and primary winding binding post position is located on the upper brace of high-tension current device; Secondary coil is wound on iron core, between the coil of secondary coil and coil, adopt insulating material isolation, secondary coil also adopts same insulating material isolation between layers, and the position of secondary coil binding post is located on the base of high-tension current device, and radome covers on outside secondary coil; Dielectric is located between radome and shell.
The utility model dielectric adopts the placement of reporting to the leadship after accomplishing a task of nonlinear resistance material and epoxy resin, and is at least placed with one deck nonlinear resistance material and epoxy resin.
The scope of the thickness of the nonlinear resistance material that the utility model dielectric adopts and the ratio of epoxy thickness is more than or equal to 1/4, is less than or equal to 1/2.The nonlinear resistance material and the epoxy resin flash-over characteristic that adopt are different.
The utility model iron core, primary winding, secondary coil are all positioned at radome.To guarantee that high voltage does not cause the stray capacitance of secondary coil.The utility model shell produces by insulating material one-shot forming.
In the utility model radome, for primary winding is between primary winding and insulated hull or the more than five times and five times of shielding paper overall diameter by the diameter of perforate, in radome, be that secondary coil is between secondary coil and insulated hull or below two times and two times of shielding paper overall diameter by the diameter of perforate;
The utility model radome is that primary winding opening area adopts epoxy resin to fill, and the thickness of fill area is the more than 5 times and 5 times of radome thickness.In dielectric, the dielectric of fill area is epoxy resin, and for once watering moulding, and other local dielectrics adopt the placement of reporting to the leadship after accomplishing a task of nonlinear resistance materials and epoxy resin, and are at least placed with one deck nonlinear resistance material and epoxy resin.
The beneficial effects of the utility model are: this device can carry out high pressure resistant test to current lifting device, makes insulation property better, more compact structure.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is insulating material profile;
Fig. 3 is primary winding profile while drawing.
In Fig. 1: 1 is secondary coil; 2 is radome; 3 is dielectric; 4 is shell; 5 is base; 6 is secondary coil binding post; 7 is iron core; 8 is primary winding; 9 is primary winding binding post.
In Fig. 2: 301 is nonlinear resistance material, 302 is epoxy resin, and 303 is multilayered nonlinear resistance material and epoxy resin, and 304 is nonlinear resistance material, and 305 is epoxy resin.
In Fig. 3: 2 is radome, 3 is dielectric, and 8 is primary winding, and 10 is epoxy resin.
Embodiment
See Fig. 1, a kind of high-tension current device, the utility model is characterised in that: comprise secondary coil 1, radome 2, dielectric 3, shell 4, base 5, secondary coil binding post 6, iron core 7, primary winding 8, primary winding binding post 9, its syndeton is: primary winding 8 by punching or etc. ampere-turn method be located in iron core 7, primary winding 8 two ends are connected with primary winding binding post 9, and primary winding binding post 9 positions are located on the upper brace of high-tension current device; Secondary coil 1 is wound on iron core 7, between the coil of secondary coil 1 and coil, adopt insulating material isolation, secondary coil 1 also adopts same insulating material isolation between layers, the position of secondary coil 1 binding post 6 is located on the base 5 of high-tension current device, and radome 2 covers on outside secondary coil 1; Dielectric 3 is located between radome 2 and shell 4.
The utility model dielectric 3 adopts the placement of reporting to the leadship after accomplishing a task of nonlinear resistance material and epoxy resin, and is at least placed with one deck nonlinear resistance material and epoxy resin.
The scope of the thickness of the nonlinear resistance material that the utility model dielectric 3 adopts and the ratio of epoxy thickness is more than or equal to 1/4, is less than or equal to 1/2.The nonlinear resistance material and the epoxy resin flash-over characteristic that adopt are different.
The utility model iron core 7, primary winding 8, secondary coil 1 are all positioned at radome 2.To guarantee that high voltage does not cause the stray capacitance of secondary coil.The utility model shell produces by insulating material one-shot forming.
In the utility model radome 2, for primary winding is between primary winding and insulated hull or the more than five times and five times of shielding paper overall diameter by the diameter of perforate, in radome 2, be that secondary coil is between secondary coil and insulated hull or below two times and two times of shielding paper overall diameter by the diameter of perforate;
The utility model radome 2 is filled for primary winding opening area adopts epoxy resin, and the thickness of fill area is the more than 5 times and 5 times of radome 2 thickness.In dielectric, the dielectric of fill area is epoxy resin 10, and for once watering moulding, and other local dielectrics adopt the placement of reporting to the leadship after accomplishing a task of nonlinear resistance materials and epoxy resin, and are at least placed with one deck nonlinear resistance material and epoxy resin.
The high-tension current device of the utility model development meets the requirement of relative national standards and industry standard completely, energy analog current instrument transformer actual motion state under high-pressure situations, and detect with this understanding its error and carry out relevant performance test, thereby examine exactly the Design and manufacture performance of this product, for the examination and test of products, metrological supervision department provides means.This standard adopts the detection method that simultaneously test specimen is passed into rated current and rated voltage, while having overcome above-mentioned single plane method calibrating, only current transformer is carried out to up-flow, do not rise to the additive error of bringing in rated voltage situation, make testing result accurately, reliably.
The utility model primary winding, secondary coil all wrap up by insulating paper.The problem that it mainly solves is exactly high pressure resistant, then avoid the stray capacitance of high pressure to coil, improve accuracy and the power factor of current device, the method of high pressure resistant employing adopts insulating material to isolate exactly, the profile of insulating material as shown in Figure 2, be at least nonlinear resistance material and the epoxy resin of 1 layer, be preferably 2 layers, their bi-materials are alternately placed, material near iron core and coil is nonlinear resistance material, the ratio of the thickness of nonlinear resistance material and epoxy thickness is more than or equal to 1/4, be less than or equal to 1/2, thickness proportion is preferably 1/3, the outermost material of high-tension current device is necessary for epoxy resin, shell adopts one-time formed technology to complete, this method mainly considers to increase equivalent capacity and the resistance of dielectric material, increase the reliability of insulation.
The utility model has avoided high pressure the measure of coil stray capacitance influences to be mainly to the opening that reduces radome, in radome for primary winding by the diameter of perforate be between primary winding five times and more than, radome is that primary winding opening area epoxy resin is filled, the thickness in epoxy resin filling region be 5 times of radome thickness and more than, concrete profile as shown in Figure 3, see in Fig. 3 shown in 10 by epoxy resin filling region.In radome for secondary coil is between secondary coil two times and following by the diameter of perforate, fill by insulating paper in space in the middle of radome opening diameter and secondary coil, maybe can think and comprise secondary coil until to fill up radome be the hole that secondary coil is opened with insulating paper.
Claims (7)
1. a high-tension current device, it is characterized in that: comprise secondary coil (1), radome (2), dielectric (3), shell (4), base (5), secondary coil binding post (6), iron core (7), primary winding (8), primary winding binding post (9), its syndeton is: primary winding (8) by punching or etc. ampere-turn method be located in iron core (7), primary winding (8) two ends are connected with primary winding binding post (9), and primary winding binding post (9) position is located on the upper brace of high-tension current device; Secondary coil (1) is wound on iron core (7), between the coil of secondary coil (1) and coil, adopt insulating material isolation, secondary coil (1) also adopts same insulating material isolation between layers, the position of secondary coil (1) binding post (6) is located on the base (5) of high-tension current device, and radome (2) covers on outside secondary coil (1); Dielectric (3) is located between radome (2) and shell (4).
2. a kind of high-tension current device according to claim 1, is characterized in that: dielectric (3) adopts the placement of reporting to the leadship after accomplishing a task of nonlinear resistance material and epoxy resin, and is at least placed with one deck nonlinear resistance material and epoxy resin.
3. a kind of high-tension current device according to claim 1 and 2, is characterized in that: the scope of the thickness of the nonlinear resistance material that dielectric (3) adopts and the ratio of epoxy thickness is more than or equal to 1/4, is less than or equal to 1/2.
4. a kind of high-tension current device according to claim 1, is characterized in that: iron core (7), primary winding (8), secondary coil (1) are all positioned at radome (2).
5. a kind of high-tension current device according to claim 1, it is characterized in that: in radome (2), for primary winding is between primary winding and insulated hull or the more than five times and five times of shielding paper overall diameter by the diameter of perforate, in radome (2), be that secondary coil is between secondary coil and insulated hull or below two times and two times of shielding paper overall diameter by the diameter of perforate.
6. a kind of high-tension current device according to claim 1 or 5, is characterized in that: radome (2) is filled for primary winding opening area adopts epoxy resin (10), and the thickness of fill area is the more than 5 times and 5 times of radome (2) thickness.
7. a kind of high-tension current device according to claim 6, it is characterized in that: in dielectric, the dielectric of fill area is epoxy resin (10), and be once to water moulding, other local dielectrics adopt the placement of reporting to the leadship after accomplishing a task of nonlinear resistance materials and epoxy resin, and are at least placed with one deck nonlinear resistance material and epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638724.XU CN203552923U (en) | 2013-10-16 | 2013-10-16 | High-voltage current device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638724.XU CN203552923U (en) | 2013-10-16 | 2013-10-16 | High-voltage current device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552923U true CN203552923U (en) | 2014-04-16 |
Family
ID=50471004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638724.XU Withdrawn - After Issue CN203552923U (en) | 2013-10-16 | 2013-10-16 | High-voltage current device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203552923U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489602A (en) * | 2013-10-16 | 2014-01-01 | 云南电力试验研究院（集团）有限公司电力研究院 | High-voltage current device |
| CN106463254A (en) * | 2014-07-02 | 2017-02-22 | 罗伯特·博世有限公司 | Device for inductively charging an electrical storage unit |
-
2013
- 2013-10-16 CN CN201320638724.XU patent/CN203552923U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489602A (en) * | 2013-10-16 | 2014-01-01 | 云南电力试验研究院（集团）有限公司电力研究院 | High-voltage current device |
| CN103489602B (en) * | 2013-10-16 | 2016-06-29 | 云南电力试验研究院（集团）有限公司电力研究院 | A kind of high-voltage current device |
| CN106463254A (en) * | 2014-07-02 | 2017-02-22 | 罗伯特·博世有限公司 | Device for inductively charging an electrical storage unit |
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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: 20140416 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |