CN207424006U - A kind of new multi-purpose change of current becomes test clamp - Google Patents
A kind of new multi-purpose change of current becomes test clamp Download PDFInfo
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- CN207424006U CN207424006U CN201721428869.1U CN201721428869U CN207424006U CN 207424006 U CN207424006 U CN 207424006U CN 201721428869 U CN201721428869 U CN 201721428869U CN 207424006 U CN207424006 U CN 207424006U
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- caliper
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- line terminals
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Abstract
The utility model discloses a kind of new multi-purpose changes of current to become test clamp, it is characterized in that, the test clamp includes hinged the first caliper (1) and the second caliper (2), the hinged place of first caliper (1) and the second caliper (2) is equipped with return spring (3), first caliper (1) end is equipped with ground wire terminal (4), second caliper (12) end is equipped with the first test line terminals (5), the ground wire terminal (4), first test line terminals (5) are connected respectively by conducting wire with the opening portion of the first caliper (1) or the second caliper (2).Test clamp provided by the utility model disclosure satisfy that the requirement for carrying out the test clips such as winding deformation test, D.C. resistance test, loop resistance test, the test of condenser capacitance value, and the connection of test wire can be directly carried out on test clamp, it realizes " folder is multi-purpose ".
Description
Technical field
Become test equipment technical field the utility model is related to the change of current more particularly to a kind of new multi-purpose changes rheometer test
Clamp.
Background technology
As what " transferring electricity from the west to the east " and national " 13 " were given back moves forward steadily, the exploitation in power stations at different levels of transferring electricity from the west to the east and
The pace of construction of current conversion station is constantly accelerated, to ensure the conveying of water power, the current conversion station that south electric network creates and has been constructed and put into operation
Up to 19, future will also continue to increase.There are the multiclass such as change of current change, reactor, breaker, capacitor in each current conversion station
Equipment, according to south electric network prerun regulation and relevant requirements of the national standard, each equipment is required to carry out preventive trial.Its
Middle change of current change needs to carry out D.C. resistance test, winding deformation test, and reactor needs the test of development D.C. resistance, inductance value to survey
Examination, breaker need to carry out loop resistance test, and capacitor needs to carry out capacitance test；Each equipment development is required to use
Different test clips and p-wire.
Previous ± 800kV the current conversion stations of mesh usually have 28 changes of current changes and 2 500kV stations changes to need to carry out winding deformation
Test, every change of current change need 4 winding deformations tests of development (net side carries out 3 times, and valve side carries out 1 time), and using to become per the station needs
Carry out 6 winding deformation tests, a current conversion station needs to carry out 124 winding deformation tests.Other are such as more casing replacing, the change of current
It is both needed to carry out winding deformation test after becoming (transformer) overhaul, the frequency of winding deformation test is very more.And every change of current becomes net
Side, valve side need to carry out 26 D.C. resistance tests altogether, and annual prerun needs to carry out 728 times ± 800kV a current conversion station every time
D.C. resistance is tested.Due to needing to provide reactive-load compensation, it is necessary to substantial amounts of capacitor, a usual ± 800kV in Converter Station
Current conversion station capacitor is up to more than 3,000, and every is both needed to carry out capacitance test, and test job amount is huge, other equipment such as open circuit
The test of device loop resistance, the test of reactor D.C. resistance, inductance value test are more.
With different p-wires and test clip, each experiment clip used cannot be general for these tests, and usual one
It just can not carry out after a pilot project test clamps damaged, can not be substituted with other test clips.Due to p-wire and
Clip frequently uses, and causes a large amount of p-wires and tests excessively using and damage for clip, strong influence on-the-spot test work
Development.
Utility model content
In order to facilitate onsite application, the efficiency of on-the-spot test is improved, reduces when various kinds of equipment is tested and replaces test clip
Frequency, the utility model provides a kind of new multi-purpose change of current and becomes test clamp.
The technical solution of the utility model is as follows：A kind of new multi-purpose change of current becomes test clamp, the test clamp bag
Hinged the first caliper 1 and the second caliper 2 are included, the hinged place of 1 and second caliper 2 of the first caliper is equipped with return bullet
Spring 3,1 end of the first caliper are equipped with ground wire terminal 4, and 2 end of the second caliper is equipped with the first test line terminals 5, the ground wire
Terminal 4, first is tested line terminals 5 and is connected respectively by conducting wire with the opening portion of the first caliper 1 or the second caliper 2.
Further, 1 and second caliper 2 of the first caliper is equipped with the second test in the upper outer close to hinged place
Line terminals 6, opening portion of the two second test line terminals 6 respectively with the first caliper 1 and the second caliper 2 are connected.
Further, the second test line terminals 6 are Metal Flake, and end is equipped with wiring hole.
Further, the material of 1 and second caliper 2 of the first caliper is metal, the first caliper 1 and the second caliper 2
The surface of hand is equipped with insulating sheath.
Further, 1 and second caliper of the first caliper, the 2 maximum open bore is 70mm, the first caliper 1 and the second pincers
Body 2 is equipped with anti-slop serrations 7 that can be conductive in open interior, and portion is equipped with arc groove 8 in the opening, also is provided on arc groove 8
Anti-slop serrations；Second test line terminals 6 and the anti-slop serrations of corresponding one side are welded as a whole.
The operation principle of the utility model is as follows：Test clamp is included into the first caliper 1 and the second caliper 2, the first caliper 1
Opening with the second caliper 2 is 70mm, and the first caliper 1 and the second caliper 2 are equipped with anti-slop serrations 7 in open interior, in the opening
Portion is equipped with arc groove 8, and arc groove can be clamped in converter transformer sleeve, breaker, reactor both ends conductor, porcelain shell for capacitor
Pipe expands the use scope of clip, and anti-slop serrations increase frictional force, and test clamp is avoided to slip；By two caliper tails of clip
Installation connects the terminal of p-wire and ground wire respectively at end, and installs p-wire wire connection terminal, terminals additional at the middle part of two calipers
Son is connected by conducting wire with opening portion, realizes that a clip can connect the purpose of more p-wires；In two calipers of clip
End section installs the larger insulating sheath of intensity additional, is hardly damaged after not only having ensured the frequent use of clip, but also ensures the safety of wiring.
Compared with prior art, the utility model has the advantages that：Test clamp energy provided by the utility model
Enough meet and carry out the test clips such as winding deformation is tested, D.C. resistance is tested, loop resistance is tested, the test of condenser capacitance value
It is required that and the connection of test wire can be directly carried out on test clamp, realize " one folder multi-purpose ".When winding deformation test clamp
It can be pressed from both sides when son, D.C. resistance p-wire clip, loop resistance p-wire clip, condenser capacitance value p-wire clamps damaged with this
Son is replaced, it is also possible to which a clip carries out multinomial test.
Description of the drawings
Fig. 1 is the structure diagram of test clamp provided by the utility model；
Fig. 2 is test clamp inner lead connection figure；
It is marked in figure：The first calipers of 1-, the second calipers of 2-, 3- return springs, 4- ground wire terminals, 5- first test line end
Son, 6- second test line terminals, 7- anti-slop serrations, 8- arc grooves.
Specific embodiment
The technical solution of the utility model is described in further details with reference to specific embodiment, but the utility model
It is not limited to following technical scheme.
Embodiment 1
As depicted in figs. 1 and 2, the test clamp includes hinged the first caliper 1 and the second caliper 2, described
The hinged place of first caliper 1 and the second caliper 2 is equipped with return spring 3, and 1 end of the first caliper is equipped with ground wire terminal 4, the second pincers
2 end of body is equipped with the first test line terminals 5.First caliper 1 and the second caliper 2 are equipped with the in the upper outer close to hinged place
Two test line terminals 6, the second test line terminals 6 are Metal Flake, and end is equipped with wiring hole.Terminal 4 and first is grounded to test
Line terminals 5 are connected respectively by conducting wire with the anti-slop serrations 7 of corresponding one side, and the second test line terminals 6 are welded as one with anti-slop serrations 7
Body.
The conductor connection of the opening anti-slide tooth and tested device of first caliper 1 or the second caliper 2, and opening portion is entirely anti-skidding
Tooth 7 is conductive.
Opening portion bore between clamp 1 and clamp 2 is 70mm, and the first caliper 11 is set with the second caliper 12 in open interior
There are anti-slop serrations 7, portion is equipped with arc groove 8 in the opening, and anti-slop serrations 7 also are provided on arc groove 8.
The material of first caliper 1 and the second caliper 2 is metal, and the surface of 2 handle of the first caliper 1 and the second caliper is equipped with absolutely
Edge sheath.
When carrying out winding deformation test, the use process of the test clamp is as follows：Test the first caliper 1 and the of clamp
The arc groove 8 of two calipers, 2 opening portion is clipped on bushing shell for transformer top conductor, and the first test line terminals of the second caliper 2 connect
P-wire, the ground wire connection ground wire of terminal 4 are connect, ground wire is connected again with ground connection folder, and ground connection folder is clipped in sleeve bottom
Ground connection work is completed on flange.
When carrying out DCR of Transformer test, the use process of the test clamp is as follows：Test the first of clamp
The arc groove 8 of 1 and second caliper of caliper, 2 opening portion is clipped on subject bushing shell for transformer top conductor, the test of the first caliper 1
Line short end 26 (or calibrating terminals 26 of the second caliper 2) of son connect voltage measurement line, the calibrating terminal 26 of the second caliper 2 (or
6) p-wire short end 2 of first caliper 1 connects current measurement line, even if pressure-wire and current line are coupled on test equipment
D.C. resistance test can be carried out；
When carrying out breaker loop resistor test, the use process of the test clamp is as follows：Test the first of clamp
The arc groove 8 of 1 and second caliper of caliper, 2 opening portion is clipped on the conductor of subject breaker end, and the p-wire of the first caliper 1 is short
Terminal 26 (or calibrating terminal 26 of the second caliper 2) connects voltage measurement line, the calibrating terminal 26 of the second caliper 2 (or first
6) p-wire short end 2 of caliper 1 connects current measurement line, pressure-wire and current line, which are coupled on test equipment, can open
Open up loop resistance test；
When carrying out the test of condenser capacitance value, the use process of the test clamp is as follows：Test the first caliper 1 of clamp
It is clipped in the arc groove 8 of 2 opening portion of the second caliper on subject capacitor conductor, p-wire is connect to the ground connection of test clamp respectively
In line terminals 4, the p-wire other end is connected with test equipment, you can carries out the capacitance test of capacitor.
Claims (5)
1. a kind of new multi-purpose change of current becomes test clamp, which is characterized in that the test clamp includes hinged the
The hinged place of one caliper (1) and the second caliper (2), first caliper (1) and the second caliper (2) is equipped with return spring (3), the
One caliper (1) end is equipped with ground wire terminal (4), and the second caliper (2) end is equipped with the first test line terminals (5), the ground connection
Line terminals (4), the first test line terminals (5) are connected respectively by conducting wire and the opening portion of the first caliper (1) or the second caliper (2)
It connects.
2. the new multi-purpose change of current as described in claim 1 becomes test clamp, which is characterized in that first caliper (1) and
Second caliper (2) is equipped with the second test line terminals (6), two second test line terminals in the upper outer close to hinged place
(6) opening portion respectively with the first caliper (1) and the second caliper (2) is connected.
3. the new multi-purpose change of current as claimed in claim 2 becomes test clamp, which is characterized in that the second test line terminals
(6) to be Metal Flake, end is equipped with wiring hole.
4. the new multi-purpose change of current as described in claims 1 to 3 is any becomes test clamp, which is characterized in that first pincers
The material of body (1) and the second caliper (2) is metal, and the surface of the first caliper (1) and the second caliper (2) handle is equipped with insulation shield
Set.
5. the new multi-purpose change of current as claimed in claim 4 becomes test clamp, which is characterized in that first caliper (1) with
Second caliper (2) maximum open bore is 70mm, and the first caliper (1) is equipped with the second caliper (2) in open interior can be conductive
Anti-slop serrations (7), in the opening portion be equipped with arc groove (8), arc groove also is provided with anti-slop serrations on (8)；Second test line end
The anti-slop serrations of sub (6) and corresponding one side are welded as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721428869.1U CN207424006U (en) | 2017-10-31 | 2017-10-31 | A kind of new multi-purpose change of current becomes test clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721428869.1U CN207424006U (en) | 2017-10-31 | 2017-10-31 | A kind of new multi-purpose change of current becomes test clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424006U true CN207424006U (en) | 2018-05-29 |
Family
ID=62309456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721428869.1U Active CN207424006U (en) | 2017-10-31 | 2017-10-31 | A kind of new multi-purpose change of current becomes test clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207424006U (en) |
-
2017
- 2017-10-31 CN CN201721428869.1U patent/CN207424006U/en active Active
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