CN204011023U - Zero sequence current mutual inductor - Google Patents
Zero sequence current mutual inductor Download PDFInfo
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- CN204011023U CN204011023U CN201420266074.5U CN201420266074U CN204011023U CN 204011023 U CN204011023 U CN 204011023U CN 201420266074 U CN201420266074 U CN 201420266074U CN 204011023 U CN204011023 U CN 204011023U
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Abstract
The utility model discloses a kind of zero sequence current mutual inductor, comprises circumferential body and outgoing cable, and circumferential body comprises the first half ring mechanisms of docking and the second half ring mechanisms and by the clip of two halves ring mechanism banding; The first half ring mechanisms comprise the first semi-circular shell, are arranged at the first semi-circular iron core and coil thereof in the first semi-circular shell; The second half ring mechanisms comprise the second semi-circular shell, are arranged at the second semi-circular iron core and coil thereof in the second semi-circular shell; Also comprise two groups of seals, two groups of seals are arranged at respectively the periphery of two butt ends of the first semi-circular shell and the second semi-circular shell.The zero sequence current mutual inductor that the utility model provides can be installed on cable in the mode of folding, in addition by silica gel sealing ring is set, by silicon sheet core opening part (butt end) foreign aid sealing, blocking-up contacts with the external world, has antirust, corrosion resistant feature.
Description
Technical field
The utility model relates to electric-power metering, the fault detect device of power industry, is specifically related to a kind of zero sequence current mutual inductor.
Background technology
Traditional zero sequence current mutual inductor is all the product of closed type; the cable that oneself connects for two ends installs zero-sequenceprotection additional and bothers very much; can not install online, before installing, must cut off the electricity supply, of a cable extraction just can need to be pierced into cable through instrument transformer or disconnection wiring.
In order to address the above problem, China CN103077817A application for a patent for invention discloses a kind of open-close type zero sequence current mutual inductor, it comprises base, is arranged on the building body of watering on base, described watering is provided with annular core in building body, the described building body of watering comprises that superposed first waters building body and be positioned at second of bottom and water building body, and first waters building body and the second shape of watering building body is semicircle; First waters building body and second waters and forms after building body docking circularly, and described first waters on the outer circumference surface that building body and second waters building body and be provided with bail, and described bail waters building body and second by first and waters building body and be connected.
Although the technical scheme of above-mentioned patent application can make the mode of instrument transformer with folding, is more easily installed on cable; But still there is following defect: its folding end does not arrange hermetically-sealed construction, first waters building body and the second butt end of watering the annular core of building body gets rusty easily, corrodes, cause such instrument transformer to be unsuitable for moving under adverse circumstances, or when it uses under adverse circumstances, life-span and function can be a greater impact.
Utility model content
The utility model provides a kind of zero sequence current mutual inductor, can be installed on cable in the mode of folding, solves the sealing problem of folding butt end simultaneously, and this zero sequence current mutual inductor can normally be moved under adverse circumstances.The purpose of this utility model is realized by following technical scheme:
A kind of zero sequence current mutual inductor, comprises circumferential body and outgoing cable, and circumferential body comprises the first half ring mechanisms of docking and the second half ring mechanisms and by the clip of two halves ring mechanism banding; The first half ring mechanisms comprise the first semi-circular shell, are arranged at the first semi-circular iron core and coil thereof in the first semi-circular shell; The second half ring mechanisms comprise the second semi-circular shell, are arranged at the second semi-circular iron core and coil thereof in the second semi-circular shell; It is characterized in that, also comprise two groups of seals, two groups of seals are arranged at respectively the periphery of two butt ends of the first semi-circular shell and the second semi-circular shell.
As concrete technical scheme, described two groups of seal configurations are identical, include a upper sealing ring and a lower seal, upper sealing ring and lower seal are arranged at respectively one end of the first semi-circular shell and corresponding one end of the second semi-circular shell, are fitted to each other and seal butt end periphery.
As concrete technical scheme, described upper sealing ring and lower seal are silica gel sealing ring.
As concrete technical scheme, described the first semi-circular iron core and the second semi-circular iron core are silicon sheet core.
As concrete technical scheme, described clip comprises bent hoop bar and connects locking mechanism, and hoop bar is the steel bar of a bending, and hoop is located at the outer rim of the first half ring mechanisms and the second half ring mechanisms of docking, and its two ends connect by connecting locking mechanism.
As concrete technical scheme, described outgoing cable adopts shielding multiple twin flexible cable for connecting, and one end connects described coil, and the other end stretches out circumferential body outside and is provided with aviation plug.
The zero sequence current mutual inductor that the utility model provides can be installed on cable in the mode of folding, in addition by silica gel sealing ring is set, silicon sheet core opening part (butt end) foreign aid is sealed, blocking-up contacts with the external world, have antirust, corrosion resistant feature, reasonably structural design makes the utility model also can under adverse circumstances, normally move in the prerequisite that ensures electric property.
Brief description of the drawings
The overall appearance figure of the zero sequence current mutual inductor that Fig. 1 provides for the utility model embodiment.
The front view of the zero sequence current mutual inductor main body that Fig. 2 provides for the utility model embodiment.
The left view of the zero sequence current mutual inductor main body that Fig. 3 provides for the utility model embodiment.
The zero sequence current mutual inductor main body that Fig. 4 provides for the utility model embodiment face decomposing schematic representation.
The schematic diagram of the first seal in the zero sequence current mutual inductor that Fig. 5 provides for the utility model embodiment.
The schematic diagram of the second seal in the zero sequence current mutual inductor that Fig. 6 provides for the utility model embodiment.
The schematic cross-section of folding butt end relative set seal in the zero sequence current mutual inductor that Fig. 7 provides for the utility model embodiment.
Seal close-fitting schematic cross-section in folding butt end in the zero sequence current mutual inductor that Fig. 8 provides for the utility model embodiment.
Embodiment
As shown in Figure 1, the zero sequence current mutual inductor 100 that the present embodiment provides comprises circumferential body 10 and outgoing cable 20.In conjunction with Fig. 1 and Fig. 2, circumferential body 10 comprises the first half ring mechanisms 11, the second half ring mechanisms 12, two groups of seals 13 and clips 15.
Shown in Fig. 2 and Fig. 3, the first half ring mechanisms 11 comprise the first semi-circular shell 111, are arranged at the first semi-circular iron core 112 and coil thereof in the first semi-circular shell 111.The second half ring mechanisms 12 comprise the second semi-circular shell 121, are arranged at the second semi-circular iron core 122 and coil thereof in the second semi-circular shell 121.The first semi-circular shell 111 and the second equal opening in semi-circular shell 121 two ends separately, the first semi-circular iron core 112 and the second corresponding closely cooperating in semi-circular iron core 122 two ends separately while being used for docking, magnetic circuit is by seamless iron core coupling, on coil, produce the electric current of corresponding proportion, exported by outgoing cable 20.The first semi-circular iron core 112 and the second semi-circular iron core 122 are silicon sheet core, have high initial permeability, low coercive force and high maximum permeability.Silicon sheet core low price, is equivalent to the 1/6-1/10 of permalloy price, but in the exposed corrosion that gets rusty easily in air.
Shown in Fig. 4, Fig. 5 and Fig. 6, two groups of seals 13 are arranged at respectively two butt ends of the first semi-circular shell 111 and the second semi-circular shell 121.Two groups of seals 13 are constructed identical, include a upper sealing ring 131 and a lower seal 132, in the present embodiment, upper sealing ring 131 and lower seal 132 are all " returning " font, and shape is mated with the opening shape at the first semi-circular shell 111 and the second semi-circular shell 121 two ends separately.Upper sealing ring 131 and lower seal 132 are arranged at respectively one end of the first semi-circular shell 111 and corresponding one end of the second semi-circular shell 121, while docking for one end of the first semi-circular shell 111 and the second semi-circular shell 121, be fitted to each other and seal butt end periphery.Upper sealing ring 131 and lower seal 132 are silica gel sealing ring, and it has blocked iron core opening part (being described butt end) and extraneous contacting, antirust, corrosion-resistant, make iron core opening part light non-corrosive, durable in use and do not affect normal function.
Shown in Fig. 2 and Fig. 3, clip 15 comprises bent hoop bar 151 and connects locking mechanism 152, hoop bar 151 is the steel bar of a bending, be arranged at the outer rim of the first half ring mechanisms 11 and the second half ring mechanisms 12 of docking, and by both bandings, its two ends connect locking by connecting locking mechanism 152.After clip 15 is tightened the first half ring mechanisms 11 and the second half ring mechanisms 12, the first semi-circular iron core 112 and the second semi-circular iron core 122 corresponding being adjacent to of both ends open end face separately, has formed an annular core very close to each other.
On the second semi-circular shell 121 of the second half ring mechanisms 12, offer fairlead 125, outgoing cable 20 is drawn from this fairlead.Outgoing cable 20 adopts RVVSP2x0.75 shielding multiple twin flexible cable for connecting, end welding aviation plug GX40, serviceability temperature-40 DEG C～+ 85 DEG C, fire-retardant (FV-0), tinned copper wire core, multiple twin polyvinyl chloride insulation, tinned copper wire mesh grid shielding, black pvc sheath.The outgoing cable 20 that the present embodiment adopts has advantages of good shielding performance, and heat resistance is good, feature easy to connect.
Shown in Fig. 7 and Fig. 8, the zero sequence current mutual inductor using method that the present embodiment provides is: while assembling online, can unclamp clip 15, the first half ring mechanisms 11 and the second half ring mechanisms 12 freely separate, then entangle cable 200, then lock with clip 15.
Above embodiment is only fully open unrestricted the utility model, all based on creation purport of the present utility model, without the replacement of the equivalence techniques feature of creative work, should be considered as the scope that the application discloses.
Claims (6)
1. a zero sequence current mutual inductor, comprises circumferential body and outgoing cable, and circumferential body comprises the first half ring mechanisms of docking and the second half ring mechanisms and by the clip of two halves ring mechanism banding; The first half ring mechanisms comprise the first semi-circular shell, are arranged at the first semi-circular iron core and coil thereof in the first semi-circular shell; The second half ring mechanisms comprise the second semi-circular shell, are arranged at the second semi-circular iron core and coil thereof in the second semi-circular shell; It is characterized in that, also comprise two groups of seals, two groups of seals are arranged at respectively the periphery of two butt ends of the first semi-circular shell and the second semi-circular shell.
2. zero sequence current mutual inductor according to claim 1, it is characterized in that, described two groups of seal configurations are identical, include a upper sealing ring and a lower seal, upper sealing ring and lower seal are arranged at respectively one end of the first semi-circular shell and corresponding one end of the second semi-circular shell, are fitted to each other and seal butt end periphery.
3. zero sequence current mutual inductor according to claim 2, is characterized in that, described upper sealing ring and lower seal are silica gel sealing ring.
4. according to the zero sequence current mutual inductor described in claim 1,2 or 3, it is characterized in that, described the first semi-circular iron core and the second semi-circular iron core are silicon sheet core.
5. according to the zero sequence current mutual inductor described in claim 1,2 or 3, it is characterized in that, described clip comprises bent hoop bar and connects locking mechanism, hoop bar is the steel bar of a bending, hoop is located at the outer rim of the first half ring mechanisms and the second half ring mechanisms of docking, and its two ends connect by connecting locking mechanism.
6. according to the zero sequence current mutual inductor described in claim 1,2 or 3, it is characterized in that, described outgoing cable adopts shielding multiple twin flexible cable for connecting, and one end connects described coil, and the other end stretches out circumferential body outside and is provided with aviation plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266074.5U CN204011023U (en) | 2014-05-22 | 2014-05-22 | Zero sequence current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266074.5U CN204011023U (en) | 2014-05-22 | 2014-05-22 | Zero sequence current mutual inductor |
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| Publication Number | Publication Date |
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| CN204011023U true CN204011023U (en) | 2014-12-10 |
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| CN201420266074.5U Active CN204011023U (en) | 2014-05-22 | 2014-05-22 | Zero sequence current mutual inductor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140872A (en) * | 2015-09-16 | 2015-12-09 | 山东康威通信技术股份有限公司 | Armored protective layer monitoring terminal structure and mounting method thereof |
| CN105605223A (en) * | 2016-02-25 | 2016-05-25 | 国家电网公司 | Waterproof rubber device of open type CT power pickup device |
| CN105609299A (en) * | 2016-03-11 | 2016-05-25 | 吴世植 | Waterproof detachable current transformer |
| CN108051689A (en) * | 2017-11-08 | 2018-05-18 | 国网山西省电力公司运城供电公司 | A kind of zero sequence current sensor |
| CN109036820A (en) * | 2018-10-08 | 2018-12-18 | 江苏南瑞泰事达电气有限公司 | A kind of flame retardant type open-close type voltage transformer |
| CN112071578A (en) * | 2020-08-28 | 2020-12-11 | 广东电网有限责任公司清远供电局 | Zero sequence current mutual inductance device |
| CN112992514A (en) * | 2019-12-02 | 2021-06-18 | 河南森源电气股份有限公司 | Open type zero sequence current transformer and manufacturing method thereof |
-
2014
- 2014-05-22 CN CN201420266074.5U patent/CN204011023U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140872A (en) * | 2015-09-16 | 2015-12-09 | 山东康威通信技术股份有限公司 | Armored protective layer monitoring terminal structure and mounting method thereof |
| CN105140872B (en) * | 2015-09-16 | 2018-12-18 | 山东康威通信技术股份有限公司 | Armouring sheath monitors terminal structure and its installation method |
| CN105605223A (en) * | 2016-02-25 | 2016-05-25 | 国家电网公司 | Waterproof rubber device of open type CT power pickup device |
| CN105609299A (en) * | 2016-03-11 | 2016-05-25 | 吴世植 | Waterproof detachable current transformer |
| CN108051689A (en) * | 2017-11-08 | 2018-05-18 | 国网山西省电力公司运城供电公司 | A kind of zero sequence current sensor |
| CN109036820A (en) * | 2018-10-08 | 2018-12-18 | 江苏南瑞泰事达电气有限公司 | A kind of flame retardant type open-close type voltage transformer |
| CN112992514A (en) * | 2019-12-02 | 2021-06-18 | 河南森源电气股份有限公司 | Open type zero sequence current transformer and manufacturing method thereof |
| CN112071578A (en) * | 2020-08-28 | 2020-12-11 | 广东电网有限责任公司清远供电局 | Zero sequence current mutual inductance device |
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