CN112652893A - Special wire clamp for voltage loop of metering device - Google Patents
Special wire clamp for voltage loop of metering device Download PDFInfo
- Publication number
- CN112652893A CN112652893A CN202011389715.2A CN202011389715A CN112652893A CN 112652893 A CN112652893 A CN 112652893A CN 202011389715 A CN202011389715 A CN 202011389715A CN 112652893 A CN112652893 A CN 112652893A
- Authority
- CN
- China
- Prior art keywords
- connecting part
- pile head
- metering device
- voltage
- wire clamp
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a special wire clamp for a voltage loop of a metering device, which comprises a pile head connecting part and a secondary wire outlet connecting part fixedly connected with the pile head connecting part, wherein the pile head connecting part is detachably and fixedly connected to a pile head of a transformer, and the secondary wire outlet connecting part is detachably connected with a low-voltage side wire and a secondary loop wire taking wire. The novel connecting wire clamp can realize that a low-voltage circuit of a secondary circuit and a low-voltage trunk circuit are separately wired without mutual interference, and meanwhile, the connecting mode of a low-voltage pile head and a low-voltage outgoing line of a transformer is not influenced.
Description
Technical Field
The invention belongs to the technical field of metering device voltage loop power-taking equipment, and relates to a special wire clamp for a metering device voltage loop.
Background
In recent years, 10kV distribution lines are gradually enlarged along with city development, particularly, the rising trend of the number of 10kV distribution transformers in a four-wire city is obvious, so that the operation and maintenance quantity of the 10kV distribution transformers is gradually increased, the transformer maintenance becomes one of daily frequent and repeated work of a power grid enterprise, in the operation and maintenance process of the 10kV distribution transformers, because the secondary circuit of a distribution current transformer is connected and accessed to a low-voltage pile head, the grounding faults of the transformer are frequently caused by the problems of insecure wiring, oxidation and the like, and then the counting of a metering device is abnormal, and the defects are difficult to find and process by naked eyes.
Aiming at the frequent occurrence of faults caused by the wiring of a secondary voltage loop of a rack variable metering device, at present, a winding type lap joint mode is generally adopted in the wiring mode of the secondary loop of a distribution network line rack variable current transformer, namely, a secondary loop line of the current transformer is wound at a low-voltage pile head wire clamp at the low-voltage wire outlet side of a transformer, and the mode is convenient to connect and is not influenced by an external equipment structure, but has certain defects.
The winding type lap joint mode of the voltage loop of the metering device has the problems that:
1) the secondary circuit of the transformer metering device gets the line trend of the voltage disorderly;
2) a secondary circuit of the current transformer is crossed with a voltage connecting circuit and a low-voltage trunk circuit;
3) the copper and aluminum contact generates heat.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a special fastener of metering device voltage circuit to solve the problem that exists among the prior art.
The technical scheme adopted by the invention is as follows: the utility model provides a special fastener of metering device voltage circuit, includes pile head connecting portion and the secondary connecting portion of being qualified for the next round of competitions with pile head connecting portion fixed connection, pile head connecting portion detachably fixed connection is on transformer pile head, and secondary connecting portion detachably of being qualified for the next round of competitions connects low pressure side wire and secondary circuit and gets the electric wire.
Preferably, the pile head connecting part is provided with a through hole, the outer end of the through hole close to the pile head connecting part is provided with a communicating notch, and the communicating notch is transversely penetrated with a locking screw.
Preferably, the end part of the secondary outgoing line connecting part is provided with a first blind hole connected with the secondary outgoing line side and a second blind hole connected with the secondary loop, a first set screw penetrates through the upper side of the first blind hole in the radial direction, and a second set screw penetrates through the front side of the second blind hole in the radial direction.
Preferably, a threaded sleeve is sleeved outside the first set screw, the threaded sleeve is spirally connected to the secondary outgoing line connecting portion, a square head is arranged at the upper end of the threaded sleeve, and a rubber ring is arranged between the square head and the large-head lower end face of the first set screw.
Preferably, the pile head connecting part and the secondary outlet connecting part are of an integral structure.
Preferably, the pile head connecting part and the secondary outlet connecting part are of a right-angled and bent zigzag structure.
Preferably, the pile head connecting part and the secondary outlet connecting part are made of aluminum alloy materials.
Preferably, two locking screws are adopted.
The invention has the beneficial effects that: compared with the prior art, the novel connecting clamp can realize that a low-voltage circuit of a secondary circuit and a low-voltage trunk circuit are separately wired without mutual interference, and meanwhile, the connecting mode of a low-voltage pile head and a low-voltage outgoing line of a transformer is not influenced.
Drawings
FIG. 1 is a side view mounting arrangement of the present invention;
fig. 2 is a schematic view of the top mounting structure of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1-2, a special wire clamp for a voltage loop of a metering device comprises a pile head connecting part 1 and a secondary outlet connecting part 2 fixedly connected with the pile head connecting part 1, wherein the pile head connecting part 1 is detachably and fixedly connected to a transformer pile head, and the secondary outlet connecting part 2 is detachably connected with a low-voltage side wire and a secondary loop wire taking wire.
Preferably, above-mentioned pile head connecting portion 1 is provided with through-hole 3, and through-hole 3 is provided with intercommunication breach 4 by pile head connecting portion 1 outer end, and intercommunication breach 4 has transversely penetrated locking screw 5, and locking screw 5 adopts two, connects reliable and stable, can also set up the aluminum alloy cover of breach in through-hole 3, and extrusion deformation locks more reliably, and conductive connection is more stable, reduces the possibility of generating heat.
Preferably, the end of the secondary outgoing line connecting part 2 is provided with a first blind hole 6 connected with the secondary outgoing line side and a second blind hole 7 connected with a secondary loop, a first set screw 8 radially penetrates through the upper side of the first blind hole 6, a second set screw 9 radially penetrates through the front side of the second blind hole 7, and the mechanical connection and the conductive connection are reliable and stable.
Preferably, the threaded sleeve 10 is sleeved outside the first set screw 8, the threaded sleeve 10 is in threaded connection with the secondary wire outlet connecting portion 2, the square head is arranged at the upper end of the threaded sleeve 10, the rubber ring 11 is arranged between the square head and the lower end face of the first set screw 8 large head, the threaded sleeve is driven to abut against the secondary wire outlet end through rotating the set screw and rotates continuously, locking can be judged to be in place after the rubber ring is broken, and damage to a wire core and poor reliability of conductive connection due to overlarge locking force are avoided.
Preferably, the pile head connecting part 1 and the secondary outlet connecting part 2 are of an integral structure, so that the integral structure is better in rigidity and strength, and the thermal resistance caused by joints is reduced.
Preferably, the pile head connecting part 1 and the secondary outlet connecting part 2 are of a right-angled and bent zigzag structure, so that mutual interference caused when the pile heads are connected is avoided.
Preferably, the pile head connecting part 1 and the secondary outgoing line connecting part 2 are made of aluminum alloy materials, so that the conductive connection is reliable and stable, and the phenomenon of heating caused by contact of copper and aluminum is avoided.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (8)
1. The utility model provides a special fastener of metering device voltage circuit which characterized in that: the secondary wire outlet connecting device comprises a pile head connecting part (1) and a secondary wire outlet connecting part (2) fixedly connected with the pile head connecting part (1), wherein the pile head connecting part (1) is detachably and fixedly connected to a transformer pile head, and the secondary wire outlet connecting part (2) is detachably connected with a low-voltage side wire and a secondary circuit wire taking part.
2. The special wire clamp for the voltage loop of the metering device according to claim 1, wherein: the pile head connecting part (1) is provided with a through hole (3), the outer end of the through hole (3) close to the pile head connecting part (1) is provided with a communicating notch (4), and the communicating notch (4) is transversely penetrated with a locking screw (5).
3. The special wire clamp for the voltage loop of the metering device according to claim 1, wherein: the end part of the secondary outgoing line connecting part (2) is provided with a first blind hole (6) connected with the secondary outgoing line side and a second blind hole (7) connected with a secondary loop, a first set screw (8) radially penetrates through the upper side of the first blind hole (6), and a second set screw (9) radially penetrates through the front side of the second blind hole (7).
4. The special wire clamp for the voltage loop of the metering device according to claim 1, wherein: a threaded sleeve (10) is sleeved outside the first set screw (8), the threaded sleeve (10) is spirally connected to the secondary outgoing line connecting portion (2), a square head is arranged at the upper end of the threaded sleeve (10), and a rubber ring (11) is arranged between the square head and the lower end face of the large end of the first set screw (8).
5. The special wire clamp for the voltage loop of the metering device according to claim 1, wherein: the pile head connecting part (1) and the secondary outlet connecting part (2) are of an integral structure.
6. The special wire clamp for the voltage loop of the metering device according to claim 5, wherein: the pile head connecting part (1) and the secondary outlet connecting part (2) are of a right-angle bent Z-shaped structure.
7. The special wire clamp for the voltage loop of the metering device according to claim 1, wherein: the pile head connecting part (1) and the secondary outlet connecting part (2) are made of aluminum alloy materials.
8. The special wire clamp for the voltage loop of the metering device according to claim 2, wherein: two locking screws (5) are adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011389715.2A CN112652893A (en) | 2020-12-02 | 2020-12-02 | Special wire clamp for voltage loop of metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011389715.2A CN112652893A (en) | 2020-12-02 | 2020-12-02 | Special wire clamp for voltage loop of metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112652893A true CN112652893A (en) | 2021-04-13 |
Family
ID=75350056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011389715.2A Pending CN112652893A (en) | 2020-12-02 | 2020-12-02 | Special wire clamp for voltage loop of metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112652893A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842409A (en) * | 2012-06-05 | 2012-12-26 | 重庆德普电气有限公司 | Novel special clip for transformer |
| DE102011086294A1 (en) * | 2011-11-14 | 2013-05-16 | Endress + Hauser Flowtec Ag | Printed circuit board (PCB) terminal block for coaxial cable used in field device for industrial process automation, has cables which are inserted into primary and secondary terminals through opening |
| CN104347964A (en) * | 2013-07-31 | 2015-02-11 | 甘国强 | Conductive cable connecting device |
| CN105186173A (en) * | 2015-10-15 | 2015-12-23 | 甘国强 | Reusable single-connection and group-connection cable plug connector of integrated tool type |
| CN205080985U (en) * | 2015-09-10 | 2016-03-09 | 广东优科电力设备制造有限公司 | Transformer wiring who improves structure presss from both sides |
| CN206379478U (en) * | 2017-01-11 | 2017-08-04 | 广西金步电力科技有限公司 | A kind of wire clamp |
| CN207938447U (en) * | 2018-04-11 | 2018-10-02 | 重庆力高电力设备有限公司 | A kind of special double wire leading-out clamps of transformer |
| CN208014521U (en) * | 2017-11-23 | 2018-10-26 | 佛山市冠通电力设备制造有限公司 | The termination of for transformer pile crown |
| CN208028236U (en) * | 2018-04-03 | 2018-10-30 | 重庆德普电气有限公司 | Transformer wire clamp with angle |
| CN209232972U (en) * | 2019-02-18 | 2019-08-09 | 红光电气集团有限公司 | Transformer pile head universal fastener |
| CN209561646U (en) * | 2019-03-25 | 2019-10-29 | 重庆德普电气有限公司 | A kind of torque screw bolt-type device clamp and equipment termination |
| CN209561624U (en) * | 2019-04-15 | 2019-10-29 | 安徽伟光电缆股份有限公司 | A kind of electric system high reliability cable |
| CN210040616U (en) * | 2019-07-08 | 2020-02-07 | 浙江贝立电力科技有限公司 | Single-outlet type transformer pile head universal wire clamp |
| CN211700619U (en) * | 2020-05-15 | 2020-10-16 | 浙江贝立电力科技有限公司 | Double-outlet type transformer pile head universal wire clamp |
-
2020
- 2020-12-02 CN CN202011389715.2A patent/CN112652893A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011086294A1 (en) * | 2011-11-14 | 2013-05-16 | Endress + Hauser Flowtec Ag | Printed circuit board (PCB) terminal block for coaxial cable used in field device for industrial process automation, has cables which are inserted into primary and secondary terminals through opening |
| CN102842409A (en) * | 2012-06-05 | 2012-12-26 | 重庆德普电气有限公司 | Novel special clip for transformer |
| CN104347964A (en) * | 2013-07-31 | 2015-02-11 | 甘国强 | Conductive cable connecting device |
| CN205080985U (en) * | 2015-09-10 | 2016-03-09 | 广东优科电力设备制造有限公司 | Transformer wiring who improves structure presss from both sides |
| CN105186173A (en) * | 2015-10-15 | 2015-12-23 | 甘国强 | Reusable single-connection and group-connection cable plug connector of integrated tool type |
| CN206379478U (en) * | 2017-01-11 | 2017-08-04 | 广西金步电力科技有限公司 | A kind of wire clamp |
| CN208014521U (en) * | 2017-11-23 | 2018-10-26 | 佛山市冠通电力设备制造有限公司 | The termination of for transformer pile crown |
| CN208028236U (en) * | 2018-04-03 | 2018-10-30 | 重庆德普电气有限公司 | Transformer wire clamp with angle |
| CN207938447U (en) * | 2018-04-11 | 2018-10-02 | 重庆力高电力设备有限公司 | A kind of special double wire leading-out clamps of transformer |
| CN209232972U (en) * | 2019-02-18 | 2019-08-09 | 红光电气集团有限公司 | Transformer pile head universal fastener |
| CN209561646U (en) * | 2019-03-25 | 2019-10-29 | 重庆德普电气有限公司 | A kind of torque screw bolt-type device clamp and equipment termination |
| CN209561624U (en) * | 2019-04-15 | 2019-10-29 | 安徽伟光电缆股份有限公司 | A kind of electric system high reliability cable |
| CN210040616U (en) * | 2019-07-08 | 2020-02-07 | 浙江贝立电力科技有限公司 | Single-outlet type transformer pile head universal wire clamp |
| CN211700619U (en) * | 2020-05-15 | 2020-10-16 | 浙江贝立电力科技有限公司 | Double-outlet type transformer pile head universal wire clamp |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210413 |
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| RJ01 | Rejection of invention patent application after publication |