CN203367765U - Electronic current transformer and breaker connection structure - Google Patents
Electronic current transformer and breaker connection structure Download PDFInfo
- Publication number
- CN203367765U CN203367765U CN 201320465297 CN201320465297U CN203367765U CN 203367765 U CN203367765 U CN 203367765U CN 201320465297 CN201320465297 CN 201320465297 CN 201320465297 U CN201320465297 U CN 201320465297U CN 203367765 U CN203367765 U CN 203367765U
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- China
- Prior art keywords
- outer cover
- syndeton
- flange
- collector
- center conductor
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Abstract
The utility model discloses an electronic current transformer and breaker connection structure. An electronic current transformer is installed between a breaker and a post insulator. The electronic current transformer comprises a first outer cover and a second outer cover. A hollow center conductor is disposed inside the first outer cover. An insulation pull bar of the breaker passes through the center conductor. A coil is arranged on the periphery of the center conductor. A collector is installed inside the second outer cover. The collector and the coil are connected through a transmission line. Meanwhile, the collector carries out data transmission through fiber which is arranged inside a fiber optic isolator. The collector comprises a copper outer-shell and an inner shell prepared from a ferromagnetic material.
Description
[technical field]
The utility model belongs to the high-voltage switch gear field, relates to the syndeton of a kind of electronic current mutual inductor and circuit breaker.
[background technology]
In the open type power station, electronic current mutual inductor is independent of circuit breaker, and the two is supported by different post insulators respectively, and the over all Integration degree is not high, and the occupation of land space is large.Current, high-voltage electrical equipment just, towards future development integrated, integrated, intelligent, miniaturization, is integrated in electronic current mutual inductor on circuit breaker, obviously can simplify the power station layout, saves and takes up an area space; But then, this integrated impact that also will face the aspects such as circuit breaker temperature rise, electromagnetic interference.
[utility model content]
The utility model provides the syndeton of a kind of electronic current mutual inductor and circuit breaker, simple in structure, and parts are few, and the occupation of land space is few, and has reduced the temperature rise that current vortex produces.
The technical scheme that the utility model adopts is:
The syndeton of a kind of electronic current mutual inductor and circuit breaker, described electronic current mutual inductor is arranged between circuit breaker and post insulator, described electronic current mutual inductor comprises the first outer cover and the second outer cover, be provided with the center conductor of hollow in described the first outer cover, described center conductor periphery arranges coil; In described the second outer cover, collector is installed, described collector is connected by transmission line with coil, and wherein, described collector comprises copper shell and ferromagnetic material inner casing.
One end of described center conductor is connected with the first flange of circuit breaker, and an other end is connected with the second flange of post insulator.
Described coil be separately installed with up and down the first collets and the second collets, described the first collets and the second collets are regulated the height between the two by screw rod, and then coil pressing.
Described the second outer cover is placed on supporting plate, the fastening overlap joint of the second flange of supporting plate and post insulator, and the lap of splice is greater than 15 millimeters.
Further be provided with heat-insulating shield in described the second outer cover, described heat-insulating shield is placed on supporting plate to pave collector.
Be provided with the intensity that reinforcement is beneficial to dispel the heat and increases supporting plate on described supporting plate.
Described the first outer cover is connected with the protection tube of the second outer cover by retractable, and the transmission line that connects collector and coil enters into the second outer cover from the first outer cover through this protection tube.
The contact-making surface of the contact-making surface of described center conductor and the first flange and center conductor and the second flange is silver-plated.
Described the first outer cover adopts insulating material or metal material, when the first outer cover is metal material, between the first outer cover and the first flange, insulation system is set.
Described insulation system is: between described the first outer cover and the first flange, the U-shaped insulating part is set, the U-lag that described the first flange setting caves inward, described U-shaped insulating part is arranged in this U-lag, and the appropriate section of described the first outer cover is arranged in the U-shaped space of this U-shaped insulating part.
Compared with prior art, the utility model at least has the following advantages: the utility model syndeton by the electronic current mutual inductor over all Integration in the middle of circuit breaker and post insulator, save the independent rack of electronic current mutual inductor, saved the occupation of land space; The shell of collector has two-layer, respectively the copper shell of outside and the ferromagnetic material inner casing of nexine, ferromagnetic material is conducive to form electromagnetic shielding, and the current vortex that ferromagnetic material produces forms backflow in copper shell, has reduced like this temperature rise that current vortex produces.
[accompanying drawing explanation]
Fig. 1 is the overall structure schematic diagram of the syndeton of the utility model electronic current mutual inductor and circuit breaker.
Fig. 2 is the part-structure schematic diagram of collector in Fig. 1.
Fig. 3 is the structural representation of supporting plate in Fig. 1, and wherein, a is the front view of supporting plate, and b is end view.
Fig. 4 is the annexation schematic diagram of the first outer cover and the first flange.
Wherein, the Reference numeral relation is as follows:
| 1 | |
2 | |
| 3 | The first |
4 | The |
| 5 | |
6 | |
| 7 | Collector | 7-1 | Shell |
| 7-2 | |
8 | The second outer cover |
| 9 | |
10 | Optical fiber insulator |
| 11 | Supporting plate | 11-1 | |
| 12 | Heat-insulating |
13 | |
| 14 | The |
15 | The |
| 16 | |
17 | The |
| 18 | |
19 | The second collets |
| 20 insulating pull rod for breaker | 21 | The U-shaped insulating part |
[embodiment]
The utility model provides a kind of electronic current mutual inductor on the open type circuit breaker and syndeton of circuit breaker of being integrated in, and comprises center conductor 1, coil 2; the first outer cover 3, the first collets 4, the second collets 19; screw rod 18, transmission line 5, protection tube 6; collector 7; the second outer cover 8, optical fiber 9, optical fiber insulator 10; supporting plate 11, insulation board 12.
(1) electronic current mutual inductor integral body is between circuit breaker 13 and post insulator 16, the first flange 15 of center conductor 1 and circuit breaker 13 and the second flange 17 of post insulator 16 connect and form path, electric current conductor 14 from circuit breaker successively like this, the first flange 15, center conductor 1 and the second flange 17 flow through, the contact-making surface of center conductor 1 and the first flange 15 and silver-plated to reduce contact resistance with the contact-making surface of the second flange 17.Center conductor 1 is hollow structure, and insulating pull rod for breaker 20 passes from center conductor 1.
(2) first outer covers 3 cover center conductor 1, coil 2, the first collets 4, in order to guarantee the certainty of measurement of coil 2, can not have electric current to flow through on the first outer cover 3, can take two kinds of modes, one is that the first outer cover 3 adopts insulating material to make, but the first outer cover 3 adopts metal material, but increases insulation measures between the first outer cover 3 and the first flange 15, the measure that adopts a kind of U-shaped insulating part 21 to embed in the present embodiment, as shown in Figure 4; The second outer cover 8 covers collector 7, and heat-insulating shield 12, the second outer covers 8 are placed on supporting plate 11, between the first outer cover 3 and the second outer cover 8, leaves the gap of 12 millimeters, and because hot gas rises, the heat that can reduce like this on the first outer cover 3 passes to the second outer cover 8.
(3) first collets 4 are placed on the second flange 17, and coil 2 is paved more than 10 millimeters.Respectively be provided with three uniform screwed holes on the first collets 4 and the second collets 19.
Screwed hole on (4) first collets 4 and the second collets 19, one is left-handed one is dextrorotation; The screw thread at screw rod 18 two ends is also the left-handed end dextrorotation of an end, like this by screw rod 18 regulate can the first collets 4 and the second collets 19 between distance, in order to coil pressing 2.
(5) shell of collector 7 has two-layerly, is respectively outside copper shell 7-1 and the ferromagnetic material inner casing 7-2 of nexine.As shown in Figure 2.Ferromagnetic material is conducive to form electromagnetic shielding, and the current vortex that ferromagnetic material produces forms backflow in copper shell, has reduced like this temperature rise that current vortex produces.
(6) supporting plate 11 and the fastening overlap joint of the second flange 17, the lap of splice is 20 millimeters.
(7) heat-insulating shield 12 is placed in above supporting plate 11, paves collector 7, and heat-insulating shield 12 thickness are 10 millimeters, can stop heat to be delivered to collector 7 from supporting plate 11.
(8) flexible hose of protection tube 6 for adopting the insulation material to make, can be at the length direction free-extension more than 2 millimeters, and the transmission line 5 of connecting coil 2 and collector 7 is placed in protection tube 6.
(9) current signal that collector obtains is by optical fiber 9 transmission, and optical fiber 9 is placed in optical fiber insulator 10.
(10) optical fiber insulator 10 is anchored on supporting plate 11 and heat-insulating shield 12, is provided with reinforcement 11-1 below supporting plate 11, has both increased the intensity of supporting plate 11, is conducive to again heat radiation.
Advantage of the present utility model: (1) compact conformation: the electronic current mutual inductor over all Integration, in the middle of circuit breaker and post insulator, has saved the independent rack of electronic current mutual inductor, has saved the occupation of land space.
(2) good anti-electromagnetic interference: the shell of collector 7 has two-layer, respectively the copper shell 7-1 of outside and the ferromagnetic material inner casing 7-2 of nexine, ferromagnetic material is conducive to form electromagnetic shielding, and the current vortex that ferromagnetic material produces forms backflow in copper shell, reduced like this temperature rise that current vortex produces.
(3) good heat-proof quality: be provided with reinforcement 11-1 below supporting plate 11, be conducive to heat radiation; Be provided with heat-insulating shield 12, can stop heat to be delivered to collector 7 from supporting plate 11; Leave the gap surpassed more than 10 millimeters between the first outer cover 3 and the second outer cover 8, because hot gas rises, the heat that can reduce on the first outer cover 3 passes to the second outer cover 8.
Claims (10)
1. the syndeton of an electronic current mutual inductor and circuit breaker, it is characterized in that: described electronic current mutual inductor is arranged between circuit breaker (13) and post insulator (16), described electronic current mutual inductor comprises the first outer cover (3) and the second outer cover (8), be provided with the center conductor (1) of hollow in described the first outer cover, described center conductor periphery arranges coil (2); Collector (7) is installed in described the second outer cover, and described collector (7) is connected by transmission line (5) with coil (2), and wherein, described collector (7) comprises copper shell (7-1) and ferromagnetic material inner casing (7-2).
2. syndeton as claimed in claim 1, it is characterized in that: an end of described center conductor (1) is connected with first flange (15) of circuit breaker (13), and an other end is connected with second flange (17) of post insulator.
3. syndeton as claimed in claim 1, it is characterized in that: described coil (2) be separately installed with up and down the first collets (4) and the second collets (19), described the first collets (4) and the second collets (19) are regulated the height between the two by screw rod (18), and then coil pressing (2).
4. syndeton as claimed in claim 1 is characterized in that: it is upper that described the second outer cover (8) is placed in supporting plate (11), the fastening overlap joint of the second flange (17) of supporting plate (11) and post insulator (16), and the lap of splice is greater than 15 millimeters.
5. syndeton as claimed in claim 4 is characterized in that: further be provided with heat-insulating shield (12) in described the second outer cover, it is upper to pave collector (7) that described heat-insulating shield (12) is placed in supporting plate (11).
6. syndeton as described as claim 4 or 5 is characterized in that: be provided with the intensity that reinforcement (11-1) is beneficial to dispel the heat and increases supporting plate (11) on described supporting plate (11).
7. syndeton as claimed in claim 1; it is characterized in that: described the first outer cover (3) is connected with the protection tube (6) of the second outer cover (8) by retractable, and the transmission line (5) that connects collector (7) and coil (2) enters into the second outer cover (8) from the first outer cover (3) through this protection tube (6).
8. syndeton as claimed in claim 2 is characterized in that: described center conductor (1) is silver-plated with the contact-making surface of the second flange (17) with contact-making surface and the center conductor (1) of the first flange (15).
9. syndeton as claimed in claim 1 is characterized in that: described the first outer cover (3) adopts insulating material or metal material, when the first outer cover (3) is metal material, between the first outer cover (3) and the first flange (15), insulation system is set.
10. syndeton as claimed in claim 9, it is characterized in that: described insulation system is: between described the first outer cover (3) and the first flange (15), U-shaped insulating part (21) is set, the U-lag that described the first flange (15) setting caves inward, described U-shaped insulating part (21) is arranged in this U-lag, and the appropriate section of described the first outer cover (3) is arranged in the U-shaped space of this U-shaped insulating part (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320465297 CN203367765U (en) | 2013-07-31 | 2013-07-31 | Electronic current transformer and breaker connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320465297 CN203367765U (en) | 2013-07-31 | 2013-07-31 | Electronic current transformer and breaker connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367765U true CN203367765U (en) | 2013-12-25 |
Family
ID=49815484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320465297 Expired - Lifetime CN203367765U (en) | 2013-07-31 | 2013-07-31 | Electronic current transformer and breaker connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332112A (en) * | 2017-06-30 | 2017-11-07 | 中国西电电气股份有限公司 | A kind of integrated system of electronic current mutual inductor and breaker |
-
2013
- 2013-07-31 CN CN 201320465297 patent/CN203367765U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332112A (en) * | 2017-06-30 | 2017-11-07 | 中国西电电气股份有限公司 | A kind of integrated system of electronic current mutual inductor and breaker |
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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: 20131225 |