CN213986609U - Special-shaped flexible optical current transformer - Google Patents
Special-shaped flexible optical current transformer Download PDFInfo
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- CN213986609U CN213986609U CN202021638480.1U CN202021638480U CN213986609U CN 213986609 U CN213986609 U CN 213986609U CN 202021638480 U CN202021638480 U CN 202021638480U CN 213986609 U CN213986609 U CN 213986609U
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Abstract
The utility model discloses a flexible optical current transformer of dysmorphism, include and be used for around the optic fibre sensing ring on primary conductor and be used for the casing of holding optic fibre sensing ring, optic fibre sensing ring is formed for flexible sensing optical cable coils. The utility model discloses the sampling is around the optic fibre sensing ring on primary conductor, has reduced the volume greatly, and is applicable in the installation of the narrow and small condition in space.
Description
Technical Field
The utility model relates to a flexible optical current transformer of dysmorphism belongs to the sensor field.
Background
Along with the constantly-built development of national electric power system, in order to satisfy demands such as scientific research, production, will increase online monitoring system to partial transformer substation, power plant, need use current transformer to the measurement of electric current, because the primary conductor of transformer substation, power plant measuring point department, like copper bar, insulated cable, GIS jar body etc. structural design has been fixed, is difficult to modify, all will utilize current operating mode environment installation current transformer. However, many measuring points have narrow space, and a common electromagnetic type electronic transformer has a large volume, a heavy structure and is difficult to install.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flexible optical current transformer of dysmorphism has solved the problem that reveals among the background art.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a flexible optical current transformer of dysmorphism, is used for around the optic fibre sensing ring on primary conductor and be used for holding optic fibre sensing ring's casing, and optic fibre sensing ring is formed for flexible sensing optical cable coils.
The top of the shell is open, and the center of the shell is provided with a through hole for penetrating a primary conductor.
An outlet through which the flexible sensing optical cable passes is arranged on the shell, and the flexible sensing optical cable at the outlet is fastened with the shell through a locking joint.
The shell is internally provided with a cable groove for limiting the movement of the optical fiber sensing ring, and the flexible sensing cable is embedded in the cable groove.
The shell is a splicing shell.
The top opening of the shell is covered with a cover plate, and a sealing rubber pad and an optical cable pressing plate are sequentially arranged between the cover plate and the optical fiber sensing ring.
A rain cover fixed with the shell is arranged above the cover plate.
Rain-proof cover is the rain-proof cover of concatenation, and concatenation department sampling buckle cooperates.
The utility model discloses the beneficial effect who reaches: 1. the optical fiber sensing ring wound on the primary conductor for sampling greatly reduces the volume and is suitable for installation under the condition of narrow space; 2. the parts of the utility model are all of sampling assembled structures, and the primary conductor is not required to be disconnected in the installation process, thereby facilitating construction, maintenance and repair; 3. the optical fiber sensing ring is sealed in the shell and well protected, and is suitable for long-time stable operation.
Drawings
Fig. 1 is a front sectional view of the present invention;
fig. 2 is a side sectional view of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the special-shaped flexible optical current transformer is deployed on an outdoor primary conductor 6, serves as a primary conductor 6 current monitoring device, measures the magnitude of current passing through the primary conductor 6, and transmits the measured magnitude of current to a secondary acquisition unit.
The transformer comprises a fiber sensing ring 1 for winding on a primary conductor 6 and a housing 7 for accommodating the fiber sensing ring 1.
The optical fiber sensing ring 1 is formed by coiling a flexible sensing optical cable, the flexible sensing optical cable comprises a round-protection optical fiber, a coated optical fiber and a polarization-maintaining optical fiber which are sequentially connected, and the whole connected optical fiber is sleeved in an optical fiber protection tube to form the optical cable.
The shell 7 is a splicing shell, particularly a left splicing structure and a right splicing structure, the splicing parts can be matched by a buckle, and the shell 7 can be connected to a fixing point near the primary conductor 6 through the fixing support 4. The top opening of casing 7, the center department of casing 7 is provided with the through-hole that is used for wearing primary conductor 6, opens the cable groove that has the restriction optic fibre sensing ring 1 removal in the casing 7, and optic fibre sensing ring 1 inlays in the cable groove, and casing 7 is last to be opened has the export of wearing flexible sensing optical cable, and the flexible sensing optical cable of exit passes through locking joint 2 and casing 7 fastening, and the flexible sensing optical cable cover that wears has the protection 3 bellows.
The top opening of casing 7 is covered with apron 9, has set gradually sealing rubber pad 8 and optical cable clamp plate 10 between apron 9 and the optic fibre sensing ring 1, compresses tightly flexible sensing optical cable through optical cable clamp plate 10, seals optic fibre sensing ring 1 in casing 7 through sealing rubber pad 8.
Because primary conductor 6 is in the open air, consequently need consider the sealed rain-proof performance of mutual-inductor, as shown in fig. 2, 9 tops of apron are provided with the rain-proof cover 5 fixed with casing 7, wholly are 316 stainless steel, and rain-proof cover 5 is generally fixed with casing 7 through the fastener, and rain-proof cover 5 also adopts the rain-proof cover of concatenation, in order to prevent that the rainwater from invading, concatenation department sampling buckle cooperation.
During the installation, splice casing 7, primary conductor 6 passes the through-hole, casing 7 is connected to near the fixed point of primary conductor 6 through fixed bolster 4, winds flexible sensing optical cable and forms optic fibre sensing ring 1 on primary conductor 6 to inlay optic fibre sensing ring 1 in the optic cable groove, place optical cable clamp plate 10 on optic cable sensing ring 1, place sealing rubber pad 8 on the optical cable clamp plate 10, cover apron 9, the rain-proof cover 5 of concatenation, it is fixed with casing 7 with rain-proof cover 5.
The special-shaped flexible optical current transformer samples the optical fiber sensing ring 1 wound on the primary conductor 6, greatly reduces the volume and is suitable for installation under the condition of narrow space; the parts of the special-shaped flexible optical current transformer are of an assembled structure, and the primary conductor 6 does not need to be disconnected in the installation process, so that the special-shaped flexible optical current transformer is convenient to construct, overhaul and maintain; the special-shaped flexible optical current transformer optical fiber sensing ring 1 is sealed in the shell 7 and well protected, and is suitable for long-time stable operation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides a flexible optical current transformer of dysmorphism which characterized in that: the optical fiber sensing ring is formed by winding a flexible sensing optical cable;
the top of the shell is provided with an opening, and the center of the shell is provided with a through hole for penetrating a primary conductor;
the top opening of the shell is covered with a cover plate, and a sealing rubber pad and an optical cable pressing plate are sequentially arranged between the cover plate and the optical fiber sensing ring.
2. The shaped flexible optical current transformer of claim 1, wherein: an outlet through which the flexible sensing optical cable passes is arranged on the shell, and the flexible sensing optical cable at the outlet is fastened with the shell through a locking joint.
3. The shaped flexible optical current transformer of claim 1, wherein: the shell is internally provided with a cable groove for limiting the movement of the optical fiber sensing ring, and the flexible sensing cable is embedded in the cable groove.
4. The shaped flexible optical current transformer of claim 1, wherein: the shell is a splicing shell.
5. The shaped flexible optical current transformer of claim 1, wherein: a rain cover fixed with the shell is arranged above the cover plate.
6. The shaped flexible optical current transformer of claim 5, wherein: rain-proof cover is the rain-proof cover of concatenation, and concatenation department sampling buckle cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021638480.1U CN213986609U (en) | 2020-08-10 | 2020-08-10 | Special-shaped flexible optical current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021638480.1U CN213986609U (en) | 2020-08-10 | 2020-08-10 | Special-shaped flexible optical current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213986609U true CN213986609U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021638480.1U Active CN213986609U (en) | 2020-08-10 | 2020-08-10 | Special-shaped flexible optical current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213986609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116449070A (en) * | 2023-06-16 | 2023-07-18 | 常州博瑞电力自动化设备有限公司 | Optical transformer |
-
2020
- 2020-08-10 CN CN202021638480.1U patent/CN213986609U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116449070A (en) * | 2023-06-16 | 2023-07-18 | 常州博瑞电力自动化设备有限公司 | Optical transformer |
| CN116449070B (en) * | 2023-06-16 | 2023-09-05 | 常州博瑞电力自动化设备有限公司 | Optical transformer |
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