CN103337760A - Secondary short circuiting line for CT and PT - Google Patents
Secondary short circuiting line for CT and PT Download PDFInfo
- Publication number
- CN103337760A CN103337760A CN2013102769926A CN201310276992A CN103337760A CN 103337760 A CN103337760 A CN 103337760A CN 2013102769926 A CN2013102769926 A CN 2013102769926A CN 201310276992 A CN201310276992 A CN 201310276992A CN 103337760 A CN103337760 A CN 103337760A
- Authority
- CN
- China
- Prior art keywords
- clamp
- intermediate plate
- clamping piece
- bite
- conductive
- 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.)
- Granted
Links
Images
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a secondary short circuiting line for a CT and a PT. The secondary short circuiting line comprises a first clamp, a second clamp and a third clamp which are connected together, wherein each of the three clamps comprises a first clamping piece and a second clamping piece which are connected through a clamp axial column, an occlusion part is formed when the front ends of the first clamping piece and the second clamping piece are occluded, and a groove is formed in the middle when the occlusion part is closed; an insulating bushing is arranged at one end of the first clamping piece of the first clamp, and an external insulation connecting part and an internal conductive connecting part are connected onto the second clamping piece; the first clamping piece of the second clamp is connected with a conducting wire, and an electrical connection terminal with a conductive terminal at the top and a conductive jack at the tail part are arranged at the other end of the conducting wire; the second clamping pieces of the three clamps are the same in structure, and the third clamp and the second clamp are the same in structure; the conductive terminal of the second clamp is inserted into the connecting part of the first clamp, and the conductive terminal of the third clamp is inserted into the conductive jack of the second clamp so as to form a current path. The secondary short circuiting line for the CT and the PT can form a reliable short circuit, is simple in operation and can effectively ensure personnel safety of operating staff.
Description
Technical field
The present invention relates to a kind of electric power system common tool, be specifically related to a kind of CT, the shorting stub of PT secondary.
Background technology
Daily electric power system is used a plain conductor or screwdriver to add nuditing wire usually to current transformer (CT), when voltage transformer (PT) carries out the secondary short circuit and is operated, and namely can not form reliable short circuit, also has potential safety hazard.Particularly checking protection coil is to the metering coil and when measuring coil and carrying out exhausted resistance and measure in controller switching equipment commissioning test work, because CT, PT secondary coil distance is near, winding space is little, not only operation inconvenience also is easy to the operating personnel personnel that cause are injured.
Summary of the invention
Form reliable short circuit when making CT, PT carry out the secondary short circuit, simplify the operation, and effectively guarantee operating personnel's personal safety, the invention provides a kind of CT, the shorting stub of PT secondary, can solve the problems of the technologies described above, its concrete technical scheme is as follows:
A kind of CT, the shorting stub of PT secondary, comprise first～the 3rd clip that links together, described three clips include first intermediate plate and second intermediate plate that connects by the clip jack-post, the front portion of described first intermediate plate and second intermediate plate formation bite that is interlocked, form a groove in the middle of the described bite, the shape of this groove and binding post shape are complementary, and are conducive to reinforce the bond strength of shorting stub and binding post; First intermediate plate of described first clamp has insulating case away from bite one end, and second intermediate plate of described first clamp is connected with link away from bite one end, described link exterior insulation, inner conductive; Be connected with lead on first intermediate plate of described second clamp, the other end of described lead is provided with the conduction splicing ear, and described conduction splicing ear top is provided with conducting terminal, afterbody is provided with conductive jack; Second intermediate plate of described second clamp is identical with second clamping piece structure of first clamp; Described the 3rd clip is identical with the second clamp structure; The conducting terminal of described second clamp inserts the link of first clamp, and the conductive jack that the conducting terminal of described the 3rd clip inserts second clamp forms current path.
The contact-making surface of the bite of described three clips is zigzag.
This CT, the shorting stub of PT secondary are connected with binding post closely, can form reliable short circuit, and be easy and simple to handle, effectively guaranteed operating personnel's personal safety.
Description of drawings
Fig. 1 is CT of the present invention, PT secondary shorting stub structure chart;
Fig. 2 is the second clamp structure chart of CT of the present invention, the shorting stub of PT secondary.
Embodiment
Be described in detail below in conjunction with the structure of the drawings and specific embodiments to CT of the present invention, the shorting stub of PT secondary.
As shown in Figure 1, 2, a kind of CT, the shorting stub of PT secondary, comprise first～the 3rd clip 1,5,6 that links together, described three clips 1,5,6 include first intermediate plate and second intermediate plate that connects by the clip jack-post, the front portion of described first intermediate plate and second intermediate plate formation bite that is interlocked, form a groove 2 in the middle of the described bite, the shape of this groove 2 and binding post shape are complementary, and are conducive to reinforce the bond strength of shorting stub and binding post; Have insulating case 3 away from bite one end on first intermediate plate of described first clamp 1, second intermediate plate of described first clamp 1 is connected with link 10 away from bite one end, described link 10 exterior insulations, inner conductive; Be connected with lead 4 on first intermediate plate of described second clamp 5, the other end of described lead 4 is provided with conduction splicing ear 7, and described conduction splicing ear 7 tops are provided with conducting terminal 9, afterbody is provided with conductive jack 8; Second intermediate plate of described second clamp 5 is identical with second clamping piece structure of first clamp 1; Described the 3rd clip 6 is identical with second clamp 5 structures; The conducting terminal 9 of described second clamp 5 inserts the link of first clamp 1, and the conductive jack 8 that the conducting terminal 9 of described the 3rd clip 6 inserts second clamp 5 forms current path.
The contact-making surface of described three clips 1,5,6 bite is zigzag.
During use, second clamp 5, the 3rd clip 6 are linked to each other with the equipment binding post respectively, first clamp 1 links to each other with earth connection, and this CT, the shorting stub of PT secondary are connected closely with binding post, and ground connection is reliable, has effectively guaranteed operating personnel's personal safety.
Claims (2)
1. a CT, PT shorting stub, comprise first～the 3rd clip (1,5,6) that links together, it is characterized in that: described three clips (1,5,6) include first intermediate plate and second intermediate plate that connects by the clip jack-post, the front portion of described first intermediate plate and second intermediate plate formation bite that is interlocked forms a groove (2) in the middle of the described bite; First intermediate plate of described first clamp (1) has insulating case (3) away from bite one end, and second intermediate plate of described first clamp (1) is connected with link (10) away from bite one end, described link (10) exterior insulation, inner conductive; Be connected with lead (4) on first intermediate plate of described second clamp (5), the other end of described lead (4) is provided with conduction splicing ear (7), and described conduction splicing ear (7) top is provided with conducting terminal (9), afterbody is provided with conductive jack (8); Second intermediate plate of described second clamp (5) is identical with second clamping piece structure of first clamp (1); Described the 3rd clip (6) is identical with second clamp (5) structure; The conducting terminal (9) of described second clamp (5) inserts the link (10) of first clamp (1), and the conductive jack (8) that the conducting terminal (9) of described the 3rd clip (6) inserts second clamp (5) forms current path.
2. CT as claimed in claim 1, PT shorting stub is characterized in that: the contact-making surface of the bite of described three clips (1,5,6) is zigzag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310276992.6A CN103337760B (en) | 2013-07-03 | 2013-07-03 | CT, PT secondary short circuit line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310276992.6A CN103337760B (en) | 2013-07-03 | 2013-07-03 | CT, PT secondary short circuit line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103337760A true CN103337760A (en) | 2013-10-02 |
| CN103337760B CN103337760B (en) | 2016-01-20 |
Family
ID=49245878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310276992.6A Active CN103337760B (en) | 2013-07-03 | 2013-07-03 | CT, PT secondary short circuit line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103337760B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487614A (en) * | 2013-10-18 | 2014-01-01 | 国家电网公司 | Secondary testing device of current transformer and assembly thereof |
| CN104062623A (en) * | 2014-07-03 | 2014-09-24 | 国家电网公司 | Low-voltage-side short circuit device for high-voltage electric transformer |
| CN104362440A (en) * | 2014-11-17 | 2015-02-18 | 国家电网公司 | Multifunctional fish mouth clamp |
| CN109406837A (en) * | 2018-11-01 | 2019-03-01 | 国家电网有限公司 | Power transformer high-potting multifunctional access wire clamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07245176A (en) * | 1994-03-04 | 1995-09-19 | Sharp Corp | Connecting structure of electric wire with insulative covering |
| CN2394338Y (en) * | 1999-09-08 | 2000-08-30 | 大铭电业股份有限公司 | Personal ground leads |
| CN202041615U (en) * | 2011-04-13 | 2011-11-16 | 中节能太阳能科技（镇江）有限公司 | Electric testing device |
| CN202057683U (en) * | 2011-05-13 | 2011-11-30 | 河南省电力公司驻马店供电公司 | Secondary short-link line used for insulation test |
| CN202749745U (en) * | 2012-08-30 | 2013-02-20 | 山东电力集团公司济南供电公司 | Special-purpose grounding lead wire for intersecting interconnection box maintenance |
-
2013
- 2013-07-03 CN CN201310276992.6A patent/CN103337760B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07245176A (en) * | 1994-03-04 | 1995-09-19 | Sharp Corp | Connecting structure of electric wire with insulative covering |
| CN2394338Y (en) * | 1999-09-08 | 2000-08-30 | 大铭电业股份有限公司 | Personal ground leads |
| CN202041615U (en) * | 2011-04-13 | 2011-11-16 | 中节能太阳能科技（镇江）有限公司 | Electric testing device |
| CN202057683U (en) * | 2011-05-13 | 2011-11-30 | 河南省电力公司驻马店供电公司 | Secondary short-link line used for insulation test |
| CN202749745U (en) * | 2012-08-30 | 2013-02-20 | 山东电力集团公司济南供电公司 | Special-purpose grounding lead wire for intersecting interconnection box maintenance |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487614A (en) * | 2013-10-18 | 2014-01-01 | 国家电网公司 | Secondary testing device of current transformer and assembly thereof |
| CN103487614B (en) * | 2013-10-18 | 2016-08-24 | 国网冀北电力有限公司秦皇岛供电公司 | A kind of safe Current Transformer Secondary test device combination |
| CN104062623A (en) * | 2014-07-03 | 2014-09-24 | 国家电网公司 | Low-voltage-side short circuit device for high-voltage electric transformer |
| CN104362440A (en) * | 2014-11-17 | 2015-02-18 | 国家电网公司 | Multifunctional fish mouth clamp |
| CN109406837A (en) * | 2018-11-01 | 2019-03-01 | 国家电网有限公司 | Power transformer high-potting multifunctional access wire clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103337760B (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102798838B (en) | Pluggable safety junction box for site calibration of electric energy meter | |
| CN203491485U (en) | Secondary circuit wiring terminal strip short-circuiting plug for power plant or transformer station | |
| CN103337760B (en) | CT, PT secondary short circuit line | |
| CN101431193B (en) | Connection terminal structure | |
| CN204142947U (en) | Secondary terminals shorting stub is used in mutual inductor test | |
| CN206639940U (en) | Inserted short-circuiting means | |
| CN103280681B (en) | A kind of cranking test general-purpose combination short-circuit device | |
| CN207068768U (en) | Static contact component containing zero sequence current mutual inductor | |
| CN206135121U (en) | Novel stromatolite is female to be arranged | |
| CN205212473U (en) | A electric vehicle that is used for power battery's high -Voltage electrical appliances box and has it | |
| CN202817450U (en) | Short-circuit structure of contact piece of connector | |
| CN202019056U (en) | Power special voltage miniature bus wiring terminal | |
| CN204789652U (en) | Wire formula test radio frequency connector withstand voltage device | |
| CN208888277U (en) | A kind of electrical equipment test auxiliary contact pin | |
| CN104991096A (en) | Short circuit plug-in for test | |
| CN203562633U (en) | Contact type short-circuit connecting device for secondary terminal of electrical equipment | |
| CN208209049U (en) | Multifunctional grounding wire | |
| CN110895323A (en) | Portable mutual inductor test rod | |
| CN203103553U (en) | High-altitude wiring device | |
| CN202444062U (en) | Fixing device for inserted electric connection of multi-core leads | |
| CN205176060U (en) | Motor smoke test clamping device | |
| CN215180649U (en) | Portable insulation monitoring device experiment wire box | |
| CN219065554U (en) | Terminal strip short-circuit plug | |
| CN206412501U (en) | A kind of test cable binding post | |
| CN203838324U (en) | Special test grounding device for secondary winding of high-voltage transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |