CN102592814A - T-shaped 10kV full working condition all insulation high voltage contact box current transformer - Google Patents
T-shaped 10kV full working condition all insulation high voltage contact box current transformer Download PDFInfo
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- CN102592814A CN102592814A CN2011100036103A CN201110003610A CN102592814A CN 102592814 A CN102592814 A CN 102592814A CN 2011100036103 A CN2011100036103 A CN 2011100036103A CN 201110003610 A CN201110003610 A CN 201110003610A CN 102592814 A CN102592814 A CN 102592814A
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Abstract
The invention relates to a novel T-shaped 10kV full working condition all insulation high voltage contact box current transformer. A core, a secondary electromagnetic coil, a primary conductor, a head end static contact base of the primary conductor and a tail end outlet wire base are connected according to electromagnetic induction principle and packaged in an epoxy resin vacuum casting T-shaped insulator inner cavity. The head end static contact base is closed in an epoxy resin cast circular drum, a cylindrical static contact can be arranged on the static contact base directly, and the head end static contact base has a structural form of a static contact box function and can be connected with a switching cabinet breaker chamber installing plate directly. The circular drum with the static contact box function and an instrument transformer body form a semi-closed T-shaped structure different from other current transformers in shape and position. The T-shaped 10kV full working condition all insulation high voltage contact box current transformer is applied to a high voltage switching cabinet, can greatly reduce exposing area of a charged body after the current transformer is connected with other electrical components, and greatly improves whole protection level and insulation performance of electrical appliances.
Description
Affiliated technical field
The present invention relates to a kind of on the high voltage power consumption equipment, indirect measuring equipment electric current, be used for driving measure, the current measuring device of measuring instrument and protective device, a kind of New type of current instrument transformer of reflection power consumption equipment current data in real time indirectly.
Background technology
At present, current transformer is as measuring, measuring and monitor the indirect measurement system of power consumption equipment current status data, and mainly supporting application in switchgear assembly generally can't be used separately.The essential structure of conventional current instrument transformer is to adopt poured with epoxy resin, the head end outlet seat of current transformer Primary Conductor and terminal outlet seat; Horizontal arrangement is at the positive two ends of instrument transformer respectively, and the head end outlet seat of Primary Conductor and terminal outlet seat all are to expose on the instrument transformer outer surface, after other electric elements are connected; The electrified body bare area is big, and insulation property are weak, is difficult for handling; And when in draw out switchgear, using, need to increase the independent supporting use of fixed contact box parts.
Summary of the invention
In order to overcome the conventional current instrument transformer; In draw out switchgear, use to want supporting fixed contact box, and with after other electric elements are connected, the electrified body large tracts of land is exposed outside; The low shortcoming that is not suitable for adverse circumstances work of insulation property; The invention provides a kind ofly, can common contact box and common current instrument transformer function be compound in one, can be applicable to the full operating mode full-insulating high-voltage of " T " shape 10kV contact boxlike current transformer of adverse circumstances.
The technical solution adopted for the present invention to solve the technical problems is: will connect vertically arranged instrument transformer electrical structure semi-finished product part by what specification requirement was made by electromagnetic induction principle in advance; That is: the head end static contact seat of iron core, secondary solenoid, Primary Conductor, Primary Conductor and terminal outlet seat encapsulate in " T " shape insulator inner chamber of epoxide resin vacuum casting.The instrument transformer Primary Conductor is passed solenoid; The head end static contact seat is enclosed in the circular cylinder of poured with epoxy resin; Cylindrical fixed contact is directly installed on the static contact seat in the instrument transformer closed circle tube, makes instrument transformer Primary Conductor head end static contact seat and end that the circular cylinder of embedded nut arranged, and is designed with the version of fixed contact kit function; The circular cylinder end can directly be connected with switch cubicle breaker chamber mounting panel as the installed surface of instrument transformer of the present invention.The terminal outlet seat cast of Primary Conductor is fixed on instrument transformer bottom front end, and secondary solenoid terminal is through the oblique concave surface outlet of instrument transformer bottom full skirt.Therefore the feasible circular cylinder that can substitute contact box; On morpheme, form semi-enclosed " T " shape structure that is different from other current transformer with the instrument transformer body; And can significantly reduce with after other electric elements are connected; The bare area of electrified body has improved the integral protection grade and the insulation property of electric equipment.
The invention has the beneficial effects as follows: the new transformer of invention has substituted the fixed contact box that must install and use on the ordinary tap cabinet product; Reduced bonding conductor in the switch cubicle; Reduced with after other electric elements are connected; The bare area of electrified body has improved the integral protection grade and the insulation property of electric equipment.
Description of drawings
Below in conjunction with accompanying drawing and embodiment product of the present invention is further specified.
Fig. 1 product internal structure of the present invention profile
The basic view of Fig. 2 product external structure of the present invention
The conventional instrument transformer of Fig. 3 application example installation diagram in high-tension switch cabinet
Fig. 4 product of the present invention application example installation diagram in high-tension switch cabinet
1. Primary Conductor head end static contact seats among the figure, the 2. terminal outlet seat of Primary Conductor, 3. Primary Conductor, 4. iron core, 5. secondary solenoid; 6. secondary solenoid binding post, 7. fixed contact, product 8. of the present invention, 9. conventional current instrument transformer, 10. circuit breaker; 11. energized conductor, 12. high-tension switch cabinets, 13. fixed contact boxes, 14. installed surfaces, 15. circular cylinder; 16. semicircle full skirt, 17. " U " type full skirt, 18. embedded nuts, 19. breaker chamber mounting panels; 20. oblique concave surface, 21. head end outlet seats, 22. terminal outlet seats, 23. circuit breaker Mume flower contacts.
Embodiment
In Fig. 1; Product internal structure of the present invention is: Primary Conductor head end static contact seat (1) is connected with Primary Conductor (3); In the middle of the transformer iron core (4) that is wound with secondary solenoid (5), pass, the other end is connected with the terminal outlet seat of Primary Conductor, and the two ends of secondary solenoid (5) are connected with secondary solenoid binding post (6); Form the instrument transformer electric part, the instrument transformer electric part vertically is encapsulated in the epoxy resin inner chamber of " T " shape instrument transformer vacuum pouring.
As shown in Figure 2; Primary Conductor head end static contact seat (1) is enclosed in the circular cylinder (15) of poured with epoxy resin; Cylindrical fixed contact (7) is directly installed on the static contact seat (1) in the instrument transformer closed circle tube; Instrument transformer Primary Conductor head end static contact seat (1) has the circular cylinder (15) of embedded nut (18) to make up with the end; Be designed with the version of fixed contact box (13) function, the circular cylinder end can directly be connected with high-tension switch cabinet (12) breaker chamber mounting panel (19) as the installed surface (14) of instrument transformer of the present invention.The terminal outlet seat of Primary Conductor (2) cast is fixed on instrument transformer bottom front end, and secondary solenoid binding post (6) cast is fixed under instrument transformer bottom " U " shape cluster parachute (17), tiltedly on the concave surface (20).
As shown in Figure 3, conventional current instrument transformer Primary Conductor head end outlet seat (21) and terminal outlet seat (22) casting on flat are fixed on the instrument transformer end face, need supporting fixed contact box (13) to use when in high-tension switch cabinet, using; When circuit breaker (10) when being in the service position; Circuit breaker Mume flower contact (23) is electrically connected with fixed contact (7) the engagement realization of installation in the fixed contact box (13), and the bottom of fixed contact (7) is connected with energized conductor (11), and the head end outlet seat (21) of the other end and conventional instrument transformer is electrically connected; Terminal outlet seat (22) is connected with another section energized conductor; Thereby realized being electrically connected, the area that energized conductor is exposed like this is bigger, and the useful space is narrow and small in the high-tension switch cabinet; Make high-tension switch cabinet integral insulation level reduce, can not be applicable to abominable operational environment.
As shown in Figure 4; Product of the present invention (8) is used in high-tension switch cabinet (12); Utilize the embedded nut (18) on the installed surface (14) to be directly installed on the circuit breaker mounting panel (19), when circuit breaker (10) when being in the service position, circuit breaker Mume flower contact (23) is electrically connected with fixed contact (7) engagement on being installed in product Primary Conductor static contact seat of the present invention (1); The terminal outlet seat of Primary Conductor (2) is connected with energized conductor (11); Form electric loop, saved fixed contact box (13) in the conventional instrument transformer application and the energized conductor (11) that is attached thereto, the configuration in the high-tension switch cabinet has been simplified in application of the present invention; Reduce exposed electrified body to greatest extent, improved the insulation property and the ability that adapts to adverse circumstances of switch cubicle.Be distributed in semicircle full skirt (16) and " U " shape full skirt (17) on the Primary Conductor outlet seat (2); And the circular cylinder (15) with fixed contact box (13) function, with the electrified body sealing, increased creepage distance effectively; The insulation property of instrument transformer have been improved; Making the instrument transformer can safe operation under different operating modes, and practiced thrift raw material, be the high-voltage contact boxlike current transformer of the full operating mode all insulation of a kind of novel " T " shape 10kV.
Claims (4)
1. the full operating mode full-insulating high-voltage of " T " shape 10kV contact boxlike current transformer; In " T " shape insulator of epoxide resin vacuum casting; Once encapsulating the head end static contact seat and the terminal outlet seat of iron core, secondary solenoid, Primary Conductor, Primary Conductor; It is characterized in that: the instrument transformer Primary Conductor is passed solenoid, and the head end static contact seat is enclosed in the circular cylinder of poured with epoxy resin, and cylindrical fixed contact is directly installed on the static contact seat in the instrument transformer closed circle tube; The Primary Conductor end is through the positive bottom semicircular full skirt of instrument transformer, and semiclosed insulation processing is poured into a mould and is fixed on instrument transformer bottom front end; Secondary solenoid terminal is through the oblique concave surface outlet of instrument transformer bottom full skirt.
2. the full operating mode full-insulating high-voltage of " T " according to claim 1 shape 10kV contact boxlike current transformer; It is characterized in that: the circular cylinder horizontal direction arranged concentric of the Primary Conductor head end static contact seat of instrument transformer and sealing; Fixed contact is directly installed on the static contact seat in the circular cylinder; The version with fixed contact kit function has been formed in design, and the circular cylinder with fixed contact kit function is arranged to " T " shape structure with the instrument transformer body is vertical.
3. the full operating mode full-insulating high-voltage of " T " according to claim 1 shape 10kV contact boxlike current transformer; It is characterized in that: Primary Conductor outlet seat is perpendicular to the mutual inductance installed surface; Be arranged in parallel in instrument transformer body bottom front end, the semicircle sealing of design full skirt on the Primary Conductor outlet seat, Primary Conductor outlet seat; Along perpendicular to the installed surface direction, design levels twice " U " shape full skirt.
4. the full operating mode full-insulating high-voltage of " T " according to claim 1 shape 10kV contact boxlike current transformer; It is characterized in that: the cast of secondary solenoid outlet terminal is fixed on the oblique concave surface in instrument transformer bottom; Terminal surface and instrument transformer installed surface are angle to be arranged, is tiltedly designing twice " U " shape full skirt above the concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100036103A CN102592814A (en) | 2011-01-12 | 2011-01-12 | T-shaped 10kV full working condition all insulation high voltage contact box current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100036103A CN102592814A (en) | 2011-01-12 | 2011-01-12 | T-shaped 10kV full working condition all insulation high voltage contact box current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102592814A true CN102592814A (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100036103A Pending CN102592814A (en) | 2011-01-12 | 2011-01-12 | T-shaped 10kV full working condition all insulation high voltage contact box current transformer |
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| CN (1) | CN102592814A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833736A (en) * | 2017-11-13 | 2018-03-23 | 上海基胜能源股份有限公司 | A kind of Combined high-voltage current transformer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2739779Y (en) * | 2004-08-05 | 2005-11-09 | 蒋福锦 | High voltage current mutual inductor |
| CN201036151Y (en) * | 2007-04-30 | 2008-03-12 | 大连北方互感器有限公司 | Backbone type totally-enclosed current mutual inductor |
-
2011
- 2011-01-12 CN CN2011100036103A patent/CN102592814A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2739779Y (en) * | 2004-08-05 | 2005-11-09 | 蒋福锦 | High voltage current mutual inductor |
| CN201036151Y (en) * | 2007-04-30 | 2008-03-12 | 大连北方互感器有限公司 | Backbone type totally-enclosed current mutual inductor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833736A (en) * | 2017-11-13 | 2018-03-23 | 上海基胜能源股份有限公司 | A kind of Combined high-voltage current transformer |
| CN107833736B (en) * | 2017-11-13 | 2024-01-23 | 上海基胜能源股份有限公司 | Combined high-voltage current transformer |
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Application publication date: 20120718 |