CN202601401U - Bus-type current transformer - Google Patents
Bus-type current transformer Download PDFInfo
- Publication number
- CN202601401U CN202601401U CN 201220306764 CN201220306764U CN202601401U CN 202601401 U CN202601401 U CN 202601401U CN 201220306764 CN201220306764 CN 201220306764 CN 201220306764 U CN201220306764 U CN 201220306764U CN 202601401 U CN202601401 U CN 202601401U
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- Prior art keywords
- square casing
- current transformer
- hole
- bus
- secondary connection
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Abstract
The utility model discloses a bus-type current transformer which comprises a square shell, an iron core, an induction coil and two secondary-wiring terminals, wherein a through hole is arranged in the middle of the square shell, the iron core is arranged inside the square shell, the induction coil is wound on the iron core, and the two secondary-wiring terminals are arranged on the square shell. Mounting holes are arranged at the front end and the rear end of the square shell, mounting bolts and mounting nuts which are matched with the mounting bolts are arranged in the mounting holes, an insulating washer is arranged at one end which is close to the through hole of each mounting bolt, a transparent cover board is arranged above each secondary-wiring terminal, the transparent cover board is fixed with the square shell through a lead seal, and a penetrating hole is arranged on the square shell for the lead seal to penetrate through. The two secondary-wiring terminals are adjacently arranged and an insulating clapboard is arranged between the two secondary-wiring terminals; and the two secondary-wiring terminals are arranged on one corner of the square shell. The bus-type current transformer has an anti-electricity-theft function and a wide range of application.
Description
Technical field
The utility model belongs to instrument transformer structure-design technique field, is specifically related to a kind of bus-type current transformer.
Background technology
When in the low-voltage alternating-current circuit, measuring the electric current electric energy, the through hole that alive circuit passes on the circuit instrument transformer housing is sampled to line current.Existing current transformer comprises that mainly the middle part is provided with the housing of through hole, is arranged on the iron core in the housing and is wound on the induction coil on the said iron core and is arranged on two secondary connection terminals on the said housing; And two secondary connection terminals mostly are arranged on the roof or diapire of housing, and there is following defective in the current transformer of this kind structure:
(1) secondary connection of current transformer is open, does not have anti-electricity-theft defencive function, is easy to artificially come more this current ratio from second diffluence or change nameplate, thereby obtains illegal electric energy;
(2) the secondary connection terminal is arranged on the roof or diapire of housing, it is unreasonable to connect up, and is inappropriate for the use of some occasion.
Therefore, the structure of above-mentioned current transformer also need be improved.
The utility model content
To the above-mentioned deficiency that exists in the background technology, the utility model provides a kind of have anti-stealing electricity function and bus-type current transformer applied widely.
The technical scheme that realizes the utility model purpose is:
A kind of bus-type current transformer comprises that the middle part is provided with the square casing of through hole, is arranged on the iron core in the square casing and is wound on the induction coil on the said iron core and is arranged on two secondary connection terminals on the said square casing; Front-end and back-end at said square casing are provided with installing hole, in said installing hole, be provided with mounting screw and with the supporting nut of mounting screw, be fixed with insulating washer at mounting screw near an end of through hole; Above each said secondary connection terminal, be provided with transparent cover plate, said transparent cover plate is fixed together through lead sealing and square casing, on square casing, is provided with the perforation that supplies lead sealing to pass; Two secondary connection terminals also are provided with insulating barrier between setting and two secondary connection terminals; Two said secondary connection terminals are arranged on a jiao of said square casing.
In the technique scheme, said transparent cover plate rotates and is arranged on the said square casing.
In the technique scheme, said through hole is a rectangular through-hole.
In the technique scheme, on said square casing, be provided with nameplate, said nameplate passes through laser engraving on said housing.
In the technique scheme, each said secondary connection terminal comprises and is fixed on binding post, the tension disc that has screw on the said square casing and is provided with externally threaded screw, and the hole that the front end of said screw passes on the tension disc is threaded with screw on the binding post.
In the technique scheme, said transparent cover plate adopts the transparent polystyrene material to process.
The utlity model has positive effect:
(1) current transformer in the present embodiment is through being arranged on the secondary connection terminal on the left side wall or right side wall of square casing; The top outlet or the bottom outlet that are about to the conventional current instrument transformer change outlet on the angle into; Adopt the current transformer wiring of outlet on the angle more reasonable, be suitable for more occasions and use; Current transformer in the utility model also is provided with transparent cover plate above the secondary connection terminal simultaneously; Transparent cover plate is fixed together through lead sealing and square casing; Promptly increased anti-stealing electricity function; Through adopting this structure can effectively prevent from the stealing of secondary connection terminal; Need not take off or open during use transparent cover plate just can clear view to the wiring situation of secondary connection terminal, can avoid contingent short circuit between the secondary connection terminal in that insulating barrier is set between two secondary connection terminals, have preferable practicality.
(2) the said transparent cover plate of the current transformer in the utility model rotates and is arranged on the said square casing, can prevent that transparent cover plate from use losing, and is more easy to operate.
(3) nameplate of the utility model on square casing, adopts this structure through laser engraving, and the user just can't change current ratio through the change nameplate, further plays anti-electricity-theft effect.
Description of drawings
Fig. 1 is a kind of forward view of the utility model median generatrix formula current transformer;
Fig. 2 is the right view of Fig. 1;
Reference numeral shown in the figure is:
The 1-square casing; The 11-through hole; The 12-installing hole; The 13-perforation; The 14-insulating barrier; The 2-iron core; The 3-induction coil; 4-secondary connection terminal; The 41-binding post; The 42-tension disc; The 43-screw; The 5-transparent cover plate; The 6-nameplate.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 2 has shown a kind of embodiment of the utility model.Wherein, Fig. 1 is a kind of forward view of the utility model median generatrix formula current transformer; Fig. 2 is the right view of Fig. 1.
As shown in the figure; A kind of bus-type current transformer comprises that the middle part is provided with the square casing 1 of through hole 11, is arranged on the iron core 2 in the square casing 1 and is wound on the induction coil 3 on the said iron core 2 and is arranged on two secondary connection terminals 4 on the said square casing 1; Be provided with installing hole 12 in the front-end and back-end of said square casing 1; In said installing hole 12, be provided with mounting screw and with the supporting nut of mounting screw; Be fixed with insulating washer (mounting screw, nut, insulating washer are not shown in the drawings) at mounting screw near an end of through hole 11; Shown in figure, be respectively equipped with four installing holes 12, the supporting mounting screw of each installing hole, a nut and an insulating washer in the present embodiment in the front and back end of housing 1; Make the insulating washer on it grasp the installation that the busbar that passes through hole 11 is accomplished instrument transformer through regulating mounting screw; Above each said secondary connection terminal 4, be provided with the transparent cover plate 5 that adopts the transparent polystyrene material to process, said transparent cover plate 5 is fixed together through lead sealing and square casing 1, on square casing 1, is provided with the perforation 13 that supplies lead sealing to pass; Two secondary connection terminals 4 also are provided with insulating barrier 14 between setting and two secondary connection terminals 4; Two said secondary connection terminals 4 are arranged on a jiao of square casing 1, referring to Fig. 1; Each said secondary connection terminal 4 comprises and is fixed on binding post 41, the tension disc 42 that has screw on the said square casing 1 and is provided with externally threaded screw 43; The two ends of said induction coil 3 are electrically connected with the binding post 41 of two secondary connection terminals 4 respectively, and the hole that the front end of said screw 43 passes on the tension disc 42 is threaded with screw on the binding post 41.In the present embodiment, on said square casing 1, be provided with nameplate 6, said nameplate 6 passes through laser engraving on square casing 1.Adopt this structure can prevent effectively that the user from changing current ratio through changing nameplate 6, further plays anti-electricity-theft effect.Said through hole 11 in the present embodiment is a rectangular through-hole.
Said transparent cover plate 5 in the present embodiment rotates and is arranged on the said square casing 1, adopts this structure can prevent effectively that transparent cover plate from use losing.
Obviously, the foregoing description of the utility model only be for explain clearly that the utility model does for example, and be not to be qualification to the execution mode of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation that these connotations that belong to the utility model are extended out or change still belong to the protection range of the utility model.
Claims (6)
1. bus-type current transformer comprises that the middle part is provided with the square casing (1) of through hole (11), is arranged on the iron core (2) in the square casing (1) and is wound on the induction coil (3) on the said iron core (2) and is arranged on two the secondary connection terminals (4) on the said square casing (1); Be provided with installing hole (12) in the front-end and back-end of said square casing (1), in said installing hole (12), be provided with mounting screw and with the supporting nut of mounting screw, be fixed with insulating washer at mounting screw near an end of through hole;
It is characterized in that:
Be provided with transparent cover plate (5) in each said secondary connection terminal (4) top, said transparent cover plate (5) is fixed together through lead sealing and square casing (1), on square casing (1), is provided with the perforation (13) that supplies lead sealing to pass; Two secondary connection terminals (4) also are provided with insulating barrier (14) between setting and two secondary connection terminals (4);
Two said secondary connection terminals (4) are arranged on a jiao of said square casing (1).
2. bus-type current transformer according to claim 1 is characterized in that: said transparent cover plate (5) rotates and is arranged on the said square casing (1).
3. bus-type current transformer square casing according to claim 2 is characterized in that: said through hole (11) is a rectangular through-hole.
4. bus-type current transformer according to claim 1 is characterized in that: on said square casing (1), be provided with nameplate (6), said nameplate (6) passes through laser engraving on said housing (1).
5. according to any described bus-type current transformer in the claim 1 to 4; It is characterized in that: each said secondary connection terminal (4) comprises and is fixed on binding post (41), the tension disc (42) that has screw on the said square casing (1) and is provided with externally threaded screw (43), and the hole that the front end of said screw (43) passes on the tension disc (42) is threaded with screw on the binding post (41).
6. bus-type current transformer according to claim 5 is characterized in that: said transparent cover plate (5) adopts the transparent polystyrene material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220306764 CN202601401U (en) | 2012-06-25 | 2012-06-25 | Bus-type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220306764 CN202601401U (en) | 2012-06-25 | 2012-06-25 | Bus-type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601401U true CN202601401U (en) | 2012-12-12 |
Family
ID=47318933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220306764 Expired - Lifetime CN202601401U (en) | 2012-06-25 | 2012-06-25 | Bus-type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202601401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119237A (en) * | 2017-06-26 | 2019-01-01 | 河南平芝高压开关有限公司 | Heating removes tidal current transformer and metal enclosed switchgear |
| CN113793742A (en) * | 2021-08-03 | 2021-12-14 | 河南平高通用电气有限公司 | Strut type current transformer and switch cabinet |
-
2012
- 2012-06-25 CN CN 201220306764 patent/CN202601401U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119237A (en) * | 2017-06-26 | 2019-01-01 | 河南平芝高压开关有限公司 | Heating removes tidal current transformer and metal enclosed switchgear |
| CN109119237B (en) * | 2017-06-26 | 2021-09-07 | 河南平芝高压开关有限公司 | Heating and dehumidifying type current transformer and metal-enclosed switchgear |
| CN113793742A (en) * | 2021-08-03 | 2021-12-14 | 河南平高通用电气有限公司 | Strut type current transformer and switch cabinet |
| CN113793742B (en) * | 2021-08-03 | 2024-04-02 | 河南平高通用电气有限公司 | Pillar type current transformer and switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |