CN201946422U - Build-in high-voltage side electron current mutual inductor and circuit breaker - Google Patents
Build-in high-voltage side electron current mutual inductor and circuit breaker Download PDFInfo
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- CN201946422U CN201946422U CN 201020650472 CN201020650472U CN201946422U CN 201946422 U CN201946422 U CN 201946422U CN 201020650472 CN201020650472 CN 201020650472 CN 201020650472 U CN201020650472 U CN 201020650472U CN 201946422 U CN201946422 U CN 201946422U
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Abstract
The utility model relates to a build-in high-voltage side electron current mutual inductor and a circuit breaker. The build-in high-voltage side electron current mutual inductor comprises a Rogowski coil and a low power coil which are coaxially stacked on the high-voltage side. The two coils are connected with a signal process circuit, and are characterized in that a draw-out power coil is arranged in coaxial with the two coils; an output end of the draw-out power coil is connected with a power supply circuit which supplies power to the signal process circuit. By adding the draw-out power coil and arranging the signal process circuit and the power supply of the signal process circuit integrally on the high-voltage side of the mutual inductor, electricity can be obtained directly from a bus, resources are saved, the implementation is convenient, and the application is safe. A circuit breaker is provided with the mutual inductor in a build-in mode, because process circuits and the power supply of the process circuits are arranged on the high-voltage side of the electron current mutual inductor, the power obtaining is convenient, and the suspended coils are beneficial for preventing breakdown.
Description
Technical field
The utility model relates to the electronic current transducer field, particularly the circuit breaker of built-in type high pressure side electronic current transducer and built-in this instrument transformer.
Background technology
In the electric power system, current transformer has a very wide range of applications as the output equipment of electric energy metrical and relay protection signal.Along with the electric pressure of electric power system improves constantly, problems such as the capacity of transmission is increasing, and traditional instrument transformer presents easily saturated, and precision is low, and dynamic range is little, and frequency response is narrow.Along with the development of intellectualized technology, substituting the conventional current mutual inductor coil with the electronic type current mutual inductor coil has been trend of the times, and electronic current transducer then has remarkable advantages.Present electronic current transducer has two kinds of active type and passives.This paper relates to the active type electronic current transducer.The active electronic current transformer, comprise Luo-coil, LPCT(low-power type) coil and signal processing unit, signal processing unit will be converted to the digital signal driven light-emitting element through the voltage signal that tested Primary Conductor current information is contained in the high-pressure side of Luo-coil, low-power coil conversion, transfer to low-pressure side by optical fiber with the light pulse form.But existing electronic current transducer, the power supply of signal processing unit adopts external power supply, and this external power supply needs to be provided with in addition, also needs to guide to the high-pressure side from low-pressure side, and electric insulation is had higher requirements.
The utility model content
The purpose of this utility model provides a kind of built-in type high pressure side electronic current transducer and circuit breaker, in order to solve existing electronic current transducer signal processing unit split inconvenience, the low problem of fail safe used is set.
For achieving the above object, scheme of the present utility model is: built-in type high pressure side electronic current transducer, comprise coaxial Luo-coil that stacks in high-pressure side and low-power coil, described two coils are connected with signal processing circuit, be coaxially arranged with one with described two coils and get the energy coil, this is got can one of coil output connection be the power circuit that described signal processing circuit is powered.
Adopt scheme of the present utility model, increase that get can coil, signal processing circuit and its power supply are wholely set high-pressure side at instrument transformer, directly, not only economize on resources, and implement very conveniently, use and also compare safety from the bus power taking.
Further, described three coils, and one be used to conduct electricity the metallic support seat that connects outlet board under the punching bus, coaxial being located on the inner core frame, the end that described inner core frame stretches out described coil is fixed in the described metallic support seat endoporus, the adpting flange conduction of described metallic support seat one end connects outlet board under the described punching bus, described coil and a urceolus frame that surrounds described coil are established in the pivot flange holder of the other end, and described pivot flange and described urceolus frame matched in clearance; Described inner core frame and urceolus frame all are fixed on the insulation upper cover plate away from an end of described metallic support seat.
Described insulation upper cover plate is provided with the interior installation tube and the outer tube of installing that cooperates described inner core frame and urceolus frame, and interior installation tube is threaded with the inner core frame, collet chuck is installed is outward held the urceolus frame.
Described inner core frame and urceolus frame are the metallic shield tube.The outside all is provided with the metallic shield tube in coil, can make induction field more even, and during voltage jump, has reduced the breakdown possibility of coil on bus.
Be equipped with the ring shielding plate between described each coil, this ring shielding plate and inner core frame, urceolus frame matched in clearance.
Described Luo-coil, low-power coil, energy supply coil stack setting successively up and down.
Between described Luo-coil and the insulation upper cover plate, be equipped with insulation spacer between energy supply coil and the metallic support seat.
Another kind of scheme of the present utility model is: the circuit breaker of built-in high-pressure side electronic current transducer, be included in the last outlet board, arc control device, instrument transformer chamber, following outlet board and the insulated tension pole that set gradually on the punching generatrix direction, coaxial folded be provided with Luo-coil and low-power coil on the indoor punching bus of instrument transformer, above-mentioned two coils are connected with signal processing circuit, in the instrument transformer chamber, be coaxially arranged with one with described two coils and get the energy coil, this is got can one of coil output connection be the power circuit that described signal processing circuit is powered.
Adopt circuit breaker of the present utility model, its built-in electronic current transducer is not only got and can be made things convenient for owing to adopted treatment circuit and its power supply to be wholely set in the high-pressure side, and the coil suspension is provided with to be beneficial to and prevents the generation that punctures.
Further, above-mentioned three coils, and one be used to conduct electricity the metallic support seat that connects outlet board under the punching bus, coaxial being located on the inner core frame, the end that described inner core frame stretches out described coil is fixed on described metallic support seat inboard, the adpting flange conduction of described metallic support seat one end connects outlet board under the described punching bus, and described coil and a urceolus frame that surrounds described coil are established in the pivot flange holder of the other end, and described pivot flange and described urceolus frame matched in clearance; Described inner core frame and urceolus frame all are fixed on the insulation upper cover plate away from an end of described metallic support seat.
Described insulation upper cover plate is provided with the interior installation tube and the outer tube of installing that cooperates described inner core frame and urceolus frame, and interior installation tube is threaded with the inner core frame, collet chuck is installed is outward held described urceolus frame; Described inner core frame and urceolus frame are the metallic shield tube.The outside all is provided with the metallic shield tube in coil, can make induction field more even, and during voltage jump, has reduced the breakdown possibility of coil on bus.
Description of drawings
Fig. 1 is an electronic current transducer structure chart of the present utility model;
Fig. 2 is the signal processing circuit schematic diagram;
Fig. 3 is the power circuit schematic diagram;
Fig. 4 is breaker structure figure of the present utility model.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
The embodiment of electronic current transducer of the present utility model is as follows:
As Fig. 1, built-in type high pressure side electronic current transducer shown in Figure 4, comprise the coaxial Luo-coil that stacks up and down successively 1 in high-pressure side, low-power coil 2 and get energy coil 3, Luo-coil 1 is connected with signal processing circuit 14 with low-power coil 2, get and can coil 3 outputs connect power circuit 15, power circuit 15 is signal processing circuit 14 power supplies.Three coils and a metallic support seat 4, coaxial being located on the inner core frame 5, metallic support seat 4 endoporus and inner core frame 5 screw threads are fixed, and the adpting flange of metallic support seat 4 lower ends is installed in down on the outlet board 13, and following outlet board 13 conductions connect the punching bus; Above-mentioned each coil and a urceolus frame 6 that surrounds above-mentioned coil are established in the pivot flange holder of metallic support seat 4 upper ends, and pivot flange and urceolus frame 6 matched in clearance; Inner core frame 5 all is fixed on the insulation upper cover plate 7 with urceolus frame 6 upper ends.Insulation upper cover plate 7 is provided with interior the installations tube and the outer tube of installing that cooperates inner core frame 5 and urceolus frame 6, in the interior installation tin internal thread 8 is arranged, and is threaded with inner core frame 5, collet chuck is installed is outward held urceolus frame 6.Be equipped with ring shielding plate 9 between each coil, and with inner core frame 5, urceolus frame 6 matched in clearance.Be provided with insulation spacer 10 between Luo-coil 1 and the insulation upper cover plate 7, be provided with down insulation spacer 11 between energy supply coil 3 and the metallic support seat 4.Be provided with insulating bushing between Luo-coil 1 and the inner core frame 5.Inner core frame 5 is the metallic shield tube with urceolus frame 6.
The metallic shield tube of the inside and outside both sides of coil can filter the magnetic field that enters coil, shielding magnetic field radially, and it is more accurate that coil-induced bus current is changed, and protection also can be improved with the precision and the reliability of measurement mechanism.Between coil, increase barricade, shielded the interference between the coil, further optimize coil magnetic field.
The embodiment of circuit breaker of the present utility model is as follows:
As Fig. 4, shown in Figure 1, circuit breaker is included in last outlet board 12, arc control device 30, instrument transformer chamber, following outlet board 13 that sets gradually on the punching generatrix direction and the insulated tension pole 40 that connects the punching bus, be provided with in the instrument transformer chamber as the described high-pressure side of the embodiment of the utility model electronic current transducer electronic current transducer, electronic current transducer is installed in down on the outlet board 13.
Claims (10)
1. built-in type high pressure side electronic current transducer, comprise coaxial Luo-coil that stacks in high-pressure side and low-power coil, described two coils are connected with signal processing circuit, it is characterized in that, be coaxially arranged with one with described two coils and get the energy coil, this is got can one of coil output connection be the power circuit that described signal processing circuit is powered.
2. built-in type high pressure side electronic current transducer according to claim 1, it is characterized in that, described three coils, and one be used to conduct electricity the metallic support seat that connects outlet board under the punching bus, coaxial being located on the inner core frame, the end that described inner core frame stretches out described coil is fixed in the described metallic support seat endoporus, the adpting flange conduction of described metallic support seat one end connects outlet board under the described punching bus, described coil and a urceolus frame that surrounds described coil are established in the pivot flange holder of the other end, and described pivot flange and described urceolus frame matched in clearance; Described inner core frame and urceolus frame all are fixed on the insulation upper cover plate away from an end of described metallic support seat.
3. built-in type high pressure side electronic current transducer according to claim 2, it is characterized in that, described insulation upper cover plate is provided with the interior installation tube and the outer tube of installing that cooperates described inner core frame and urceolus frame, and interior installation tube is threaded with the inner core frame, collet chuck is installed is outward held the urceolus frame.
4. built-in type high pressure side electronic current transducer according to claim 2 is characterized in that described inner core frame and urceolus frame are the metallic shield tube.
5. built-in type high pressure side electronic current transducer according to claim 2 is characterized in that, is equipped with the ring shielding plate between described each coil, this ring shielding plate and inner core frame, urceolus frame matched in clearance.
6. according to each described built-in type high pressure side electronic current transducer among the claim 2-5, it is characterized in that described Luo-coil, low-power coil, energy supply coil stack setting successively up and down.
7. built-in type high pressure side electronic current transducer according to claim 6 is characterized in that, between described Luo-coil and the insulation upper cover plate, be equipped with insulation spacer between energy supply coil and the metallic support seat.
8. the circuit breaker of built-in high-pressure side electronic current transducer, be included in the last outlet board, arc control device, instrument transformer chamber, following outlet board and the insulated tension pole that set gradually on the punching generatrix direction, coaxial folded be provided with Luo-coil and low-power coil on the indoor punching bus of instrument transformer, above-mentioned two coils are connected with signal processing circuit, it is characterized in that, in the instrument transformer chamber, be coaxially arranged with one with described two coils and get the energy coil, this is got can one of coil output connection be the power circuit that described signal processing circuit is powered.
9. the circuit breaker of built-in high-pressure side according to claim 8 electronic current transducer, it is characterized in that, above-mentioned three coils, and one be used to conduct electricity the metallic support seat that connects outlet board under the punching bus, coaxial being located on the inner core frame, the end that described inner core frame stretches out described coil is fixed on described metallic support seat inboard, the adpting flange conduction of described metallic support seat one end connects outlet board under the described punching bus, described coil and a urceolus frame that surrounds described coil are established in the pivot flange holder of the other end, and described pivot flange and described urceolus frame matched in clearance; Described inner core frame and urceolus frame all are fixed on the insulation upper cover plate away from an end of described metallic support seat.
10. the circuit breaker of built-in high-pressure side according to claim 9 electronic current transducer, it is characterized in that, described insulation upper cover plate is provided with the interior installation tube and the outer tube of installing that cooperates described inner core frame and urceolus frame, the interior tube of installing is threaded with the inner core frame, collet chuck is installed is outward held described urceolus frame; Described inner core frame and urceolus frame are the metallic shield tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020650472 CN201946422U (en) | 2010-12-09 | 2010-12-09 | Build-in high-voltage side electron current mutual inductor and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020650472 CN201946422U (en) | 2010-12-09 | 2010-12-09 | Build-in high-voltage side electron current mutual inductor and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201946422U true CN201946422U (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020650472 Expired - Lifetime CN201946422U (en) | 2010-12-09 | 2010-12-09 | Build-in high-voltage side electron current mutual inductor and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201946422U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074345A (en) * | 2010-12-09 | 2011-05-25 | 平高集团有限公司 | Built-in high voltage side electronic current transformer and circuit breaker |
| CN104360124A (en) * | 2014-11-14 | 2015-02-18 | 国电南京自动化股份有限公司 | Passive electronic current transformer used for integrated intelligent isolation circuit breaker |
| CN105826000A (en) * | 2016-05-17 | 2016-08-03 | 江苏靖江互感器厂有限公司 | Straight-through electron type current transformer for intelligent C-GIS |
| CN108281269A (en) * | 2018-01-31 | 2018-07-13 | 国网上海市电力公司 | A kind of current conversion station direct current detection mutual inductor |
| CN108369857A (en) * | 2015-12-11 | 2018-08-03 | 阿莫绿色技术有限公司 | Magnetic screen type current transformer |
-
2010
- 2010-12-09 CN CN 201020650472 patent/CN201946422U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074345A (en) * | 2010-12-09 | 2011-05-25 | 平高集团有限公司 | Built-in high voltage side electronic current transformer and circuit breaker |
| CN102074345B (en) * | 2010-12-09 | 2013-02-13 | 平高集团有限公司 | Built-in high voltage side electronic current transformer and circuit breaker |
| CN104360124A (en) * | 2014-11-14 | 2015-02-18 | 国电南京自动化股份有限公司 | Passive electronic current transformer used for integrated intelligent isolation circuit breaker |
| CN108369857A (en) * | 2015-12-11 | 2018-08-03 | 阿莫绿色技术有限公司 | Magnetic screen type current transformer |
| CN105826000A (en) * | 2016-05-17 | 2016-08-03 | 江苏靖江互感器厂有限公司 | Straight-through electron type current transformer for intelligent C-GIS |
| CN108281269A (en) * | 2018-01-31 | 2018-07-13 | 国网上海市电力公司 | A kind of current conversion station direct current detection mutual inductor |
| CN108281269B (en) * | 2018-01-31 | 2020-06-05 | 国网上海市电力公司 | Converter station direct current detection mutual inductor |
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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: 20110824 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |