CN112462124A - Coupling mutual inductor - Google Patents
Coupling mutual inductor Download PDFInfo
- Publication number
- CN112462124A CN112462124A CN202011439620.7A CN202011439620A CN112462124A CN 112462124 A CN112462124 A CN 112462124A CN 202011439620 A CN202011439620 A CN 202011439620A CN 112462124 A CN112462124 A CN 112462124A
- Authority
- CN
- China
- Prior art keywords
- metal belt
- rubber sheath
- metal
- cable joint
- plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention relates to a coupling mutual inductor which comprises a metal belt (1), a rubber sheath (2), a plastic buckle (3) and a cable joint (4); the metal belt (1) penetrates through the rubber sheath (2) and the plastic button (3), the rubber sheath (2) is used for preventing the metal belt (1) from sliding and protecting a tested object, the plastic button (3) is used for fixing the metal belt (1), and the cable joint (4) is fixedly connected with the metal belt (1). By arranging the rubber sheath and the plastic buckle, the length of the metal belt can be adjusted to adapt to the diameters of different sleeves, and the problem of electric field distortion caused by a metal tip is solved; the metal belt is made of non-rusting materials such as stainless steel and copper, and the long-term monitoring requirement of the outdoor environment can be met. The invention has the advantages of simple structure, convenient installation, non-electric connection measurement and the like, can be installed without disconnecting or modifying, and can realize safe measurement.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a coupling transformer.
Background
Transformers are the most central power transmission and transformation equipment in power systems, especially large power transformers, which play an important role in the process of electric energy transmission. When the internal winding of the transformer has faults such as partial discharge, winding deformation and the like or the sleeve has partial discharge and the like, fault signals can be transmitted through the sleeve. Therefore, the state of the transformer or the sleeve can be monitored by monitoring signals of components such as a sleeve tap, a primary lead and the like, fault early warning is realized, and equipment faults are avoided. The existing detection means such as end screen signal acquisition and the like need to be directly electrically connected, so that safety risks are brought to power equipment and instruments.
Disclosure of Invention
Aiming at the defects, the invention provides the coupling transformer which has the advantages of simple structure, convenience in installation, non-electric connection measurement and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a coupling mutual inductor comprises a metal belt, a rubber sheath, a plastic buckle and a cable joint; the metal strap passes through rubber sheath and plastics are detained, rubber sheath can prevent the metal strap slides and the protection object under test, plastics are detained fixedly the metal strap, the cable joint with metal strap fixed connection makes things convenient for quick connection.
Furthermore, the metal belt is made of stainless steel, copper and other non-rusting materials, and meets the requirement of long-term monitoring of outdoor environment.
Further, cable joint down, and electrically conductive end with the strap is connected, and the earthing terminal ground connection not only makes things convenient for plug and connection, and ground connection can effective protection device moreover, prevents the influence of overvoltage to the instrument.
The invention has the beneficial effects that:
1. the metal belt penetrates through the rubber sheath and is fixed by the plastic buckle, so that the length of the metal belt can be adjusted to adapt to the diameters of different sleeves, and the electric field distortion caused by the metal tip is avoided;
2. the metal belt is made of non-rusting materials such as stainless steel and copper, so that the requirement of long-term monitoring of outdoor environment can be met;
3. set up cable joint down, not only make things convenient for plug and connection, ground connection can effective protection device moreover, prevents the influence of overvoltage to the instrument.
The invention has the advantages of simple structure, convenient installation, non-electric connection measurement and the like, can be installed without disconnecting or modifying, and can realize safe measurement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a coupling transformer in an embodiment of the present invention;
FIG. 2 is a schematic diagram of an application of a coupling transformer in an embodiment of the present invention;
wherein:
the labels shown in the figures are: 1: metal strip, 2: rubber sheath, 3: plastic button, 4: cable joint, 5: a sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "inside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships where products of the present invention are conventionally placed in use, and are used only for convenience in describing the present invention and for simplification of description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Fig. 1 shows a schematic structural diagram of a coupling transformer in an embodiment of the invention, which includes a metal belt (1), a rubber sheath (2), a plastic button (3) and a cable connector (4); the metal strap (1) passes rubber sheath (2) and plastics are detained (3), rubber sheath (2) can prevent metal strap (1) slides and the protection object under test, plastics are detained (3) and are fixed metal strap (1), cable joint (4) with metal strap (1) fixed connection makes things convenient for quick connection.
The metal belt (1) is made of stainless steel, copper and other non-rusting materials, and meets the requirement of long-term monitoring of outdoor environment.
Cable joint (4) orientation down, and electrically conductive end with strap (1) are connected, and the earthing terminal ground connection not only makes things convenient for plug and connection, and ground connection can effective protection device moreover, prevents the influence of overvoltage to the instrument.
1. The metal belt penetrates through the rubber sheath and is fixed by the plastic buckle, so that the length of the metal belt can be adjusted to adapt to the diameters of different sleeves, and the electric field distortion caused by the metal tip is avoided;
2. the metal belt is made of non-rusting materials such as stainless steel and copper, so that the requirement of long-term monitoring of outdoor environment can be met;
3. set up cable joint down, not only make things convenient for plug and connection, ground connection can effective protection device moreover, prevents the influence of overvoltage to the instrument.
The invention has the advantages of simple structure, convenient installation, non-electric connection measurement and the like, can be installed without disconnecting or modifying, and can realize safe measurement.
Example two
Referring to fig. 1, a schematic structural diagram of a coupling transformer includes a metal band 1, a rubber sheath 2, a plastic buckle 3, and a cable connector 4; strap 1 passes rubber sheath 2 and plastics and detains 3, strap 1 is the stainless steel, non-easy corrosion materials such as copper, rubber sheath 2 can prevent that strap 1 from sliding and the protection by the test object, 3 fixed strap 1 are detained to plastics, cable joint 4 and strap 1 fixed connection, cable joint 4 orientation is down, and conductive end is connected with strap 1, earthing terminal ground connection, not only make things convenient for plug and connection, ground connection can effective protection device moreover, prevent the influence of overvoltage to the instrument.
Referring to fig. 2, when in use, under the condition that a sleeve 5 of an electric power device such as a transformer, a reactor and the like has a power failure, a metal belt 1 penetrates through a rubber sheath 2 and a plastic buckle 3, the metal belt 1, the rubber sheath 2 and the plastic buckle 3 are enclosed between a base flange of the sleeve 5 and a first porcelain bottle umbrella skirt above the base flange, two ends of the metal belt 1 are sleeved into the rubber sheath 2, the plastic buckle 3 is adjusted to prevent the metal belt 1 from loosening and sliding, and a partial discharge instrument, a signal injection device or a signal acquisition device are connected with a cable connector 4 through a cable, so that a measurement signal can be acquired.
By arranging the rubber sheath and the plastic buckle, the length of the metal belt can be adjusted to adapt to the diameters of different sleeves, and the problem of electric field distortion caused by a metal tip is solved; the metal belt is made of non-rusting materials such as stainless steel and copper, and the long-term monitoring requirement of the outdoor environment can be met. The invention has the advantages of simple structure, convenient installation, non-electric connection measurement and the like, can be installed without disconnecting or modifying, and can realize safe measurement.
The above embodiments of the present invention are described in detail, and the principle and the implementation manner of the present invention should be described herein by using specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (4)
1. A coupling transformer, characterized by: comprises a metal belt (1), a rubber sheath (2), a plastic button (3) and a cable joint (4); the metal belt (1) penetrates through the rubber sheath (2) and the plastic button (3), the rubber sheath (2) is used for preventing the metal belt (1) from sliding and protecting a tested object, the plastic button (3) is used for fixing the metal belt (1), and the cable joint (4) is fixedly connected with the metal belt (1).
2. The coupling transformer of claim 1, wherein: the metal belt (1) is made of stainless steel non-rusting materials.
3. The coupling transformer of claim 1, wherein: the metal belt (1) is made of copper non-rusting material.
4. The coupling transformer of claim 1, wherein: the cable connector (4) faces downwards, the conductive end is connected with the metal strip (1), and the grounding end is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011439620.7A CN112462124A (en) | 2020-12-07 | 2020-12-07 | Coupling mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011439620.7A CN112462124A (en) | 2020-12-07 | 2020-12-07 | Coupling mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112462124A true CN112462124A (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011439620.7A Pending CN112462124A (en) | 2020-12-07 | 2020-12-07 | Coupling mutual inductor |
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| Country | Link |
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| CN (1) | CN112462124A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202486165U (en) * | 2012-03-22 | 2012-10-10 | 北京市电力公司 | Sensor and cable connecting device |
| CN104089569A (en) * | 2014-07-03 | 2014-10-08 | 重庆大学 | Multifunctional transformer signal sensor based on capacitive coupling and signal acquisition method |
| CN205981087U (en) * | 2016-07-27 | 2017-02-22 | 国家电网公司 | A capacitive character coupling sensor for transformer winding warp on -line measuring |
| CN208538680U (en) * | 2018-09-06 | 2019-02-22 | 攀枝花市三新供电服务有限公司 | Open-close type metering transformer |
| CN210039905U (en) * | 2019-08-21 | 2020-02-07 | 温州顺水电子科技有限公司 | Current transformer for intelligent switch |
-
2020
- 2020-12-07 CN CN202011439620.7A patent/CN112462124A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202486165U (en) * | 2012-03-22 | 2012-10-10 | 北京市电力公司 | Sensor and cable connecting device |
| CN104089569A (en) * | 2014-07-03 | 2014-10-08 | 重庆大学 | Multifunctional transformer signal sensor based on capacitive coupling and signal acquisition method |
| CN205981087U (en) * | 2016-07-27 | 2017-02-22 | 国家电网公司 | A capacitive character coupling sensor for transformer winding warp on -line measuring |
| CN208538680U (en) * | 2018-09-06 | 2019-02-22 | 攀枝花市三新供电服务有限公司 | Open-close type metering transformer |
| CN210039905U (en) * | 2019-08-21 | 2020-02-07 | 温州顺水电子科技有限公司 | Current transformer for intelligent switch |
Non-Patent Citations (1)
| Title |
|---|
| 赵仲勇: "基于脉冲耦合注入的变压器绕组变形故障检测方法研究", 中国博士学位论文全文数据库 工程科技Ⅱ辑, no. 06, pages 042 - 42 * |
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