CN107589280A - A kind of testing wire clamp and complexes for relay protection small bus transition - Google Patents
A kind of testing wire clamp and complexes for relay protection small bus transition Download PDFInfo
- Publication number
- CN107589280A CN107589280A CN201710861174.0A CN201710861174A CN107589280A CN 107589280 A CN107589280 A CN 107589280A CN 201710861174 A CN201710861174 A CN 201710861174A CN 107589280 A CN107589280 A CN 107589280A
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- transition
- small bus
- relay protection
- wire clamp
- metal sleeve
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- 230000007704 transition Effects 0.000 title claims abstract description 81
- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 claims abstract description 39
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- 230000014759 maintenance of location Effects 0.000 claims description 11
- 210000003462 vein Anatomy 0.000 claims description 5
- 230000009471 action Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of testing wire clamp and complexes for relay protection small bus transition, testing wire clamp for relay protection small bus transition includes metal sleeve and metallic rod, compression spring is provided between metallic rod and metal sleeve, the outer wall of metal sleeve is provided with socket, in metal sleeve and one end is inserted in the middle part of metallic rod and is provided with two engagement arms, the other end is provided with insulated handle, torque spring is provided between two engagement arms and root is connected by bearing pin with metallic rod, the outer wall of metal sleeve and socket is provided with insulation sleeve, and the end of insulation sleeve is resisted against on rear side of engagement arm；Complexes include at least one set of transition connection unit, and transition connection unit includes transition wire and two afore-mentioned test wire clamps.The present invention can realize the fast transition of WV, substantially shorten small bus transition the time required to, greatly facilitate site examining and repairing work, shorten the service work time, improve small bus transition efficiency, it is light carry, security risk it is low.
Description
Technical field
The present invention relates to field of relay protection in power, and in particular to a kind of examination for relay protection small bus transition
Test wire clamp and complexes.
Background technology
Transformer station（Power plant）Protection with voltage be to push up small bus mode by shielding and be transferred to each protection device, and institute
It is to interconnect that the screen for having protection screen cabinet, which pushes up small bus, when needing to change a wherein face protection screen cabinet, it is necessary to Jiang Pingding
WV transition, here it is the very crux that the present invention studies.Have during traditional in the past WV transition following several
Individual difficult point：1st, work difficulty is big during protection voltage small bus transition, in work notice must high concentration, accidentally hold
Voltage short circuit or ground connection are easily caused, causes all protection device decompressions of transformer station, causes the malfunction of relay protection, consequence is extremely
Seriously.2nd, WV transitional operation project is more, time-consuming.The small bus of transition needs to lay secondary cable, by cable both sides
Split, number marking tube is covered to line, last secondary cable both sides need special messenger to access the small bus in screen top, action after carefully confirming again
More and time-consuming.3rd, still need special messenger when small bus recovers and remove secondary cable jointly in cable both sides.Maintainer was once carried out
Accounting is crossed, a 220kV track replacements protection, need to remove and change two sides protection screen cabinet, about 5 days durations, but if need
WV transition is wanted, then duration needs 6.5~7 days, increase by 40% or so workload（Here this protection screen cabinet is not considered also
For the extremely small bus mode in all protection voltage sources）.
The content of the invention
The technical problem to be solved in the present invention：Relay protection small bus transition is always the complicated and wind that worked in secondary specialty
The very high work of dangerous coefficient, and those skilled in the art's management and control in person is generally required during transition, time-consuming, former small bus mistake
Cross method --- process is cumbersome, step is more, easily occur voltage circuit short circuit or ground connection, based on above-mentioned small bus transition it is a variety of not
Sharp factor, for the above mentioned problem of prior art, the present invention provides a kind of fast transition that can realize WV, obvious
The time required to shortening small bus transition, site examining and repairing work is greatly facilitated, the service work time is shortened, improves small bus
Crossing efficiency, it is light carry, the testing wire clamp and complexes for relay protection small bus transition that security risk is low.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
On the one hand, the present invention provides a kind of testing wire clamp for relay protection small bus transition, including metal sleeve and metal
Bar, is provided with compression spring between the metallic rod and metal sleeve, the outer wall of the metal sleeve is provided with socket, the metal
In metal sleeve and one end is inserted in the middle part of bar and is provided with insulated handle, described two occlusions provided with two engagement arms, the other end
Torque spring is provided between arm and root is connected by bearing pin with metallic rod, and the outer wall of the metal sleeve and socket is provided with absolutely
Edge set, and the end of insulation sleeve is resisted against on rear side of the engagement arm.
Preferably, the clamping face of described two engagement arms is provided with the clamping tooth being mutually twisted.
Preferably, the compression spring be sheathed on on metal sleeve, and described metal sleeve one end contradict in socket
Root, the other end are contradicted on the insulated handle of metallic rod.
Preferably, the front end of the insulation sleeve is provided with flexible accommodating cavity, rear end is provided with spring retention chamber, described two occlusions
The root of arm is arranged in the flexible accommodating cavity, and the compression spring is arranged in spring retention intracavitary.
Preferably, the insulated handle is provided with pedestal, and the insulated handle is connected by pedestal with metallic rod, described to sting
The end for closing pedestal when arm opens is inserted in spring retention chamber.
Preferably, the end of the metallic rod is provided with the thread segment screw thread company of thread segment, the pedestal and metal rod ends
Connect.
Preferably, the middle part of the insulation sleeve is provided with the first Handheld Division for extending radially arrangement.
Preferably, the end of the insulated handle is provided with the second Handheld Division for extending radially arrangement.
Preferably, the front side of first Handheld Division is provided with anti-slip veins, and the rear end of second Handheld Division is provided with anti-slip veins.
On the other hand, the present invention also provides a kind of complexes for relay protection small bus transition, including at least one
Group transition connection unit, the transition connection unit include transition wire and two examinations for being previously used for relay protection small bus transition
Wire clamp is tested, the both ends of the transition wire are equipped with plug, and the plug at the transition wire both ends is respectively used for relay protection with one
The socket of the testing wire clamp of small bus transition is connected.
The testing wire clamp tool that the present invention is used for relay protection small bus transition has the advantage that：
1st, the present invention can realize the fast transition of WV, substantially shorten small bus transition required time, significantly facilitate
Site examining and repairing work, shortens the service work time, improves small bus transition efficiency, it is light carry, security risk it is low.
2nd, the present invention includes metal sleeve and metallic rod, and the outer wall of metal sleeve is provided with socket, can be with using socket
Transition wire quickly connects, and has the advantages of joint efficiency is high.
3rd, compression spring is provided between metallic rod of the present invention and metal sleeve, is inserted in the middle part of metallic rod in metal sleeve
And one end is provided with two engagement arms, the other end is provided with insulated handle, it is provided with torque spring between two engagement arms and root passes through
Bearing pin is connected with metallic rod, by said structure, realizes the long torque design of Transition wire clip, can effectively ensure that snap-in force
Degree, while longer structure design is also suitable to the double-deck small bus of protection screen cabinet, is able to ensure that by the elastic force of compression spring
Two engagement arm occlusions are firm, will not fall off at the scene in actual transition, and ensure safety completion maintenance transitional operation.
4th, the outer wall of the metal sleeve of testing wire clamp of the present invention and socket is provided with insulation sleeve, and special whole insulatings are set
Meter, metal part whole insulated enclosure, prevent voltage circuit short circuit or grounding phenomenon, ensure the security of maintenance.
The complexes that the present invention is used for relay protection small bus transition are used for relay protection small bus mistake including the present invention
The testing wire clamp crossed, including transition wire and two testing wire clamps for being previously used for relay protection small bus transition, pass through transition wire
The plug at both ends be respectively used for the socket of testing wire clamp of relay protection small bus transition with one and be connected, can realize that voltage is small
The fast transition of bus, equally also there are the aforementioned advantages that the present invention is used for the testing wire clamp of relay protection small bus transition.
Brief description of the drawings
Fig. 1 is the broken section structural representation of the embodiment of the present invention.
Fig. 2 is the cross section structure diagram of engagement arm clamped condition of the embodiment of the present invention.
Fig. 3 is the cross section structure diagram of engagement arm open configuration of the embodiment of the present invention.
Marginal data：1st, metal sleeve；11st, socket；2nd, metallic rod；21st, engagement arm；211st, clamping tooth；22nd, insulate hand
Handle；221st, pedestal；222nd, the second Handheld Division；23rd, torque spring；3rd, compression spring；4th, insulation sleeve；41st, stretch accommodating cavity；42、
Spring retention chamber；43rd, the first Handheld Division.
Embodiment
As depicted in figs. 1 and 2, the present embodiment includes metal sleeve 1 for the testing wire clamp of relay protection small bus transition
With metallic rod 2, compression spring 3 is provided between metallic rod 2 and metal sleeve 1, the outer wall of metal sleeve 1 is provided with socket 11, gold
The middle part of category bar 2 is inserted in metal sleeve 1 and one end is provided with two engagement arms 21, the other end is provided with insulated handle 22, two
Torque spring 23 is provided between engagement arm 21 and root is connected by bearing pin with metallic rod 2, the outer wall of metal sleeve 1 and socket 11
Insulation sleeve 4 is provided with, and the rear side of engagement arm 21 is resisted against the end of insulation sleeve 4.The testing wire clamp of the present embodiment passes through socket
11 can be achieved to be connected with the transition wire of relay protection small bus transition, and the clamping operation principle of testing wire clamp is as follows：Initial
Under state, due to the thrust of compression spring 3, metallic rod 2 inside contracts to insulation sleeve 4, thus two engagement arms 21 due to by
The squeezing action of insulation sleeve 4 and the torsion that overcomes torque spring 23 is in closure state, as shown in Figure 2.When needing to use, hold
Insulation sleeve 4 presses insulated handle 22 and metallic rod 2 is overhang to insulation sleeve 4, and compression spring 3 is compressed such that stroke shortens,
Opened between two engagement arms 21 provided with torque spring 23 due to being no longer influenced by the squeezing action of insulation sleeve 4, as shown in Figure 3；
Now, such as screen is pushed up small bus and is placed between the opening of two engagement arms 21 and unclamp insulated handle 22 again, you can recover initial shape
State, and it is in closure state that two engagement arms 21, which overcome the torsion of torque spring 23 due to the squeezing action by insulation sleeve 4, from
And screen is pushed up into small bus occlusion and clamped.The testing wire clamp of the present embodiment have it is light carry, both sides wire clamp insulate, i.e., dress be
With the characteristics of, can conveniently carry out the transition of WV, can substantially shorten WV transition and be taken
Between, site examining and repairing work is greatly facilitated, shortens maintenance duration, improves small bus transition efficiency, reduces manpower, material resources and financial resources
Expenditure, can substantially reduce security risk during WV transition, cable both sides human users when significantly improving transition
Inconsistent to cause to protect voltage short circuit or grounding phenomenon, it is horizontal to improve power system security stable operation, have it is light carry,
The advantages of security risk is low.
In the present embodiment, the clamping face of two engagement arms 21 is provided with the clamping tooth 211 being mutually twisted, by being mutually twisted
Clamping tooth 211 can improve snap-in force between two engagement arms 21, and improve the contact reliability of testing wire clamp.
In the present embodiment, engagement arm 21 ensures two during transition using electric conductivity, the alloy material of satisfactory mechanical property
Minor loop current-carrying capacity needs and will not deformed.
In the present embodiment, compression spring 3 be sheathed on on metal sleeve 1, and the one end of metal sleeve 1 contradict in socket 11
Root, the other end are contradicted on the insulated handle 22 of metallic rod 2, and can be overcome by said structure is needing larger snap-in force
When, the problem of being easily distorted because the stress of compression spring 3 is larger, it can be ensured that the big snap-in force stability of spring 3.
In the present embodiment, the front end of insulation sleeve 4 is provided with the accommodating cavity 41 that stretches, rear end is provided with spring retention chamber 42, and two are stung
The root for closing arm 21 is arranged in flexible accommodating cavity 41, and compression spring 3 is arranged in spring retention chamber 42, real by said structure
Metal part whole insulated enclosure is showed, can realize that the parcel of all standing formula to compression spring 3 and two engagement arms 21 are wrapped
Wrap up in, prevent voltage circuit short circuit or grounding phenomenon, ensure the security of maintenance.
In the present embodiment, insulated handle 22 is provided with pedestal 221, and insulated handle 22 passes through pedestal 221 and the phase of metallic rod 2
Even, the end of pedestal 221 is inserted in spring retention chamber 42 when engagement arm 21 is opened, and passes through said structure, it can be ensured that no matter
Two engagement arms 21 are being opened still in closure state, may ensure that the internal structure of spring retention chamber 42 is stopped by pedestal 221,
So as to effectively improve insulated enclosure performance, security is more preferable.
In the present embodiment, the end of metallic rod 2 is provided with the thread segment screw thread company of thread segment, pedestal 221 and the end of metallic rod 2
Connect, the structure firm and reliable connection is quick and easy for installation, and is conveniently replaceable insulated handle 22.
In the present embodiment, the middle part of insulation sleeve 4 is provided with the first Handheld Division 43 for extending radially arrangement, presses insulated handle
First Handheld Division 43 can play fixed effect when 22, and operation is more convenient.
In the present embodiment, the end of insulated handle 22 is provided with the second Handheld Division 222 for extending radially arrangement, pressing insulation
Operations area is big during handle 22, and the first Handheld Division 43 is used cooperatively more convenient and quicker.
In the present embodiment, the front side of the first Handheld Division 43 is provided with anti-slip veins, and the rear end of the second Handheld Division 222 is provided with anti-skidding
Line, by said structure can realize the first Handheld Division 43, the second Handheld Division 222 it is anti-skidding, operation it is more laborsaving and reliable.
The complexes for relay protection small bus transition of the present embodiment include multigroup transition connection unit, and transition connects
The first testing wire clamp that relay protection small bus transition is previously used for including transition wire and two the present embodiment of order, the two of transition wire
End is equipped with plug, and each socket with a testing wire clamp for being used for relay protection small bus transition of the plug at transition wire both ends
11 are connected.The complexes for relay protection small bus transition of the present embodiment can conveniently and efficiently complete small bus mistake
Cross, and test wire is separate by the different voltage of color different instructions, the test wire has 10 cores in the present embodiment, meets normal double
The transition of all voltage cored wires of the 220kV or 110kV voltage class of female wiring needs（A630、B630、C630、L630、
A640、B640、C640、L640、N600）.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
- A kind of 1. testing wire clamp for relay protection small bus transition, it is characterised in that：Including metal sleeve（1）And metallic rod （2）, the metallic rod（2）And metal sleeve（1）Between be provided with compression spring（3）, the metal sleeve（1）Outer wall be provided with Socket（11）, the metallic rod（2）Middle part be inserted in metal sleeve（1）In and one end be provided with two engagement arms（21）, it is another End is provided with insulated handle（22）, described two engagement arms（21）Between be provided with torque spring（23）And root passes through bearing pin and metal Bar（2）It is connected, the metal sleeve（1）And socket（11）Outer wall be provided with insulation sleeve（4）, and the engagement arm（21）After Side is resisted against insulation sleeve（4）End.
- 2. the testing wire clamp according to claim 1 for relay protection small bus transition, it is characterised in that：It is described two Engagement arm（21）Clamping face be provided with the clamping tooth that is mutually twisted（211）.
- 3. the testing wire clamp according to claim 1 for relay protection small bus transition, it is characterised in that：The compression Spring（3）It is sheathed on and metal sleeve（1）On, and the metal sleeve（1）One end is contradicted in socket（11）Root, the other end Contradict in metallic rod（2）Insulated handle（22）On.
- 4. the testing wire clamp according to claim 1 for relay protection small bus transition, it is characterised in that：The insulation Set（4）Front end be provided with flexible accommodating cavity（41）, rear end be provided with spring retention chamber（42）, described two engagement arms（21）Root It is arranged in the flexible accommodating cavity（41）In, the compression spring（3）It is arranged in spring retention chamber（42）It is interior.
- 5. the testing wire clamp according to claim 4 for relay protection small bus transition, it is characterised in that：The insulation Handle（22）It is provided with pedestal（221）, the insulated handle（22）Pass through pedestal（221）With metallic rod（2）It is connected, the occlusion Arm（21）Pedestal during opening（221）End be inserted in spring retention chamber（42）In.
- 6. the testing wire clamp according to claim 5 for relay protection small bus transition, it is characterised in that：The metal Bar（2）End be provided with thread segment, the pedestal（221）And metallic rod（2）The thread segment threaded connection of end.
- 7. the testing wire clamp according to claim 1 for relay protection small bus transition, it is characterised in that：The insulation Set（4）Middle part be provided with and extend radially the first Handheld Division of arrangement（43）.
- 8. the testing wire clamp according to claim 7 for relay protection small bus transition, it is characterised in that：The insulation Handle（22）End be provided with and extend radially the second Handheld Division of arrangement（222）.
- 9. the testing wire clamp according to claim 8 for relay protection small bus transition, it is characterised in that：Described first Handheld Division（43）Front side be provided with anti-slip veins, second Handheld Division（222）Rear end be provided with anti-slip veins.
- A kind of 10. complexes for relay protection small bus transition, it is characterised in that：Connected including at least one set of transition single Member, the transition connection unit include being used for the small mother of relay protection described in any one in transition wire and two claims 1~9 The testing wire clamp of line transition, the both ends of the transition wire are equipped with plug, and the plug at the transition wire both ends respectively with a use In the socket of the testing wire clamp of relay protection small bus transition（11）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861174.0A CN107589280B (en) | 2017-09-21 | 2017-09-21 | Test wire clamp and complete device for relay protection small bus transition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861174.0A CN107589280B (en) | 2017-09-21 | 2017-09-21 | Test wire clamp and complete device for relay protection small bus transition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107589280A true CN107589280A (en) | 2018-01-16 |
| CN107589280B CN107589280B (en) | 2024-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710861174.0A Active CN107589280B (en) | 2017-09-21 | 2017-09-21 | Test wire clamp and complete device for relay protection small bus transition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107589280B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109444546A (en) * | 2018-11-14 | 2019-03-08 | 江苏核电有限公司 | A kind of mutual inductor secondary winding directly hinders supplemental measurement tool |
| CN114176656A (en) * | 2021-11-10 | 2022-03-15 | 南京市河西医院有限公司 | Guide needle and method based on FiberLift face lifting repair |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107589280B (en) | 2024-06-11 |
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