CN107589281A - 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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- CN107589281A CN107589281A CN201711048551.5A CN201711048551A CN107589281A CN 107589281 A CN107589281 A CN 107589281A CN 201711048551 A CN201711048551 A CN 201711048551A CN 107589281 A CN107589281 A CN 107589281A
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- caliper
- test
- clamp
- line terminals
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Abstract
The invention discloses a kind of new multi-purpose change 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 provided with return spring (3), first caliper (1) end is provided with ground wire terminal (4), second caliper (12) end is provided with the first test line terminals (5), the ground wire terminal (4), first test line terminals (5) are connected by wire with the opening portion of the first caliper (1) or the second caliper (2) respectively.Test clamp provided by the invention 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, realize " folder is multi-purpose ".
Description
Technical field
The present invention relates to the change of current to become test equipment technical field, more particularly to a kind of new multi-purpose change of current becomes test clip
Pincers.
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, and to ensure the conveying of water power, south electric network is newly-built and the current conversion station that 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 code and the requirements of the national standard of correlation, each equipment is required to carry out preventive trial.Its
The middle change of current, which becomes, to be needed 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, which is carried out, to be required to use
Different test clips and p-wire.
Previous ± 800kV the current conversion stations of mesh generally have 28 changes of current changes and 2 500kV stations to be needed to carry out winding deformation with change
Test, every change of current, which becomes, needs 4 winding deformations tests of development (net side is carried out 3 times, and valve side is carried 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 can not be general for these tests, and usual one
It just can not carry out after individual 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.
The content of the invention
In order to facilitate onsite application, the efficiency of on-the-spot test is improved, reduces when various kinds of equipment is tested and changes test clip
Frequency, the present invention provides a kind of new multi-purpose change of current and becomes test clamp.
Technical scheme is as follows：A kind of new multi-purpose change of current becomes test clamp, and the test clamp includes hinge
The first caliper 1 and the second caliper 2 being connected together, the hinged place of the caliper 2 of the first caliper 1 and second are provided with return spring 3,
The end of first caliper 1 is provided with ground wire terminal 4, and the end of the second caliper 2 is provided with the first test line terminals 5, the ground wire terminal
4th, the first test line terminals 5 are connected by wire with the opening portion of the first caliper 1 or the second caliper 2 respectively.
Further, the caliper 2 of the first caliper 1 and second 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 provided with wiring hole.
Further, the material of the caliper 2 of the first caliper 1 and second is metal, the first caliper 1 and the second caliper 2
The surface of hand is provided with insulating sheath.
Further, the maximum open bore of 1 and second caliper of the first caliper 2 is 70mm, the first caliper 1 and the second pincers
Body 2 is provided with anti-slop serrations 7 that can be conductive in open interior, and portion is provided with arc groove 8 in the opening, also is provided with arc groove 8
Anti-slop serrations；Second test line terminals 6 and the anti-slop serrations of corresponding side are welded as a whole.
The operation principle of the present invention is as follows：Test clamp is included into the first caliper 1 and the second caliper 2, the first caliper 1 and the
The opening of two calipers 2 is 70mm, and the first caliper 1 and the second caliper 2 are provided with anti-slop serrations 7 in open interior, and portion is set in the opening
There is arc groove 8, arc groove can be clamped in converter transformer sleeve, breaker, reactor both ends conductor, capacitor ceramic sleeve pipe,
The use range of clip is expanded, anti-slop serrations increase frictional force, avoids testing clamp slippage；By two caliper tail ends point of clip
The terminal of p-wire and ground wire An Zhuan not be connect, and p-wire binding post is installed additional at the middle part of two calipers, binding post is equal
It is connected by wire with opening portion, realizes that a clip can connect the purpose of more p-wires；In two caliper tail ends of clip
Part installs the larger insulating sheath of intensity additional, is hardly damaged after both having ensured the frequent use of clip, ensures the safety of wiring again.
Compared with prior art, the invention has the advantages that：Test clamp provided by the invention disclosure satisfy that out
The requirement of the test clips such as winding deformation test, D.C. resistance test, loop resistance test, the test of condenser capacitance value is opened up, and
The connection of test wire can be directly carried out on test clamp, is realized " folder is multi-purpose ".When winding deformation p-wire clip, direct current
It can be carried out when resistance test harness clip, loop resistance p-wire clip, condenser capacitance value p-wire clamps damaged with the clip
Replace, it is also possible to which a clip carries out multinomial test.
Brief description of the drawings
Fig. 1 is the structural representation of test clamp provided by the invention；
Fig. 2 is the inner lead connection figure of test clamp；
Marked in figure：The calipers of 1- first, the calipers of 2- second, 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.
Embodiment
Technical scheme is described in further details with reference to specific embodiment, but the present invention does not limit to
In 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 provided with return spring 3, and the end of the first caliper 1 is provided with ground wire terminal 4, the second pincers
The end of body 2 is provided 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 provided with wiring hole.Terminal 4 and first is grounded to test
Line terminals 5 are connected by wire with the anti-slop serrations 7 of corresponding side respectively, 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 provided with arc groove 8 in the opening, and anti-slop serrations 7 also are provided with arc groove 8.
The material of first caliper 1 and the second caliper 2 is metal, and the surface of the first caliper 1 and the handle of the second caliper 2 is provided with exhausted
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 the opening portion of two caliper 2 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 with ground connection folder again, 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 the opening portion of 1 and second caliper of caliper 2 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 electric current line are coupled with tester
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 the opening portion of 1 and second caliper of caliper 2 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 electric current line are coupled with tester and can opened
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 the opening portion of the second caliper 2 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 tester, you can carries out the capacitance test of capacitor.
Claims (5)
1. a kind of new multi-purpose change of current becomes test clamp, it is characterised 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 provided with return spring (3), the
One caliper (1) end is provided with ground wire terminal (4), and the second caliper (2) end is provided with the first test line terminals (5), the ground connection
Line terminals (4), the first test line terminals (5) are connected by wire and the opening portion of the first caliper (1) or the second caliper (2) respectively
Connect.
2. the new multi-purpose change of current as claimed in claim 1 becomes test clamp, it is characterised 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, it is characterised in that the second test line terminals
(6) to be Metal Flake, end is provided with wiring hole.
4. the new multi-purpose change of current as described in claims 1 to 3 is any becomes test clamp, it is characterised 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 provided with insulation and protected
Set.
5. the new multi-purpose change of current as claimed in claim 4 becomes test clamp, it is characterised in that first caliper (1) with
Second caliper (2) maximum open bore is 70mm, and the first caliper (1) is provided with the second caliper (2) in open interior can be conductive
Anti-slop serrations (7), in the opening portion be provided 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 side are welded as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711048551.5A CN107589281A (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 |
|---|---|---|---|
| CN201711048551.5A CN107589281A (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 |
|---|---|
| CN107589281A true CN107589281A (en) | 2018-01-16 |
Family
ID=61043364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711048551.5A Pending CN107589281A (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) | CN107589281A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142806A (en) * | 2018-09-13 | 2019-01-04 | 国家电网有限公司 | HVDC TEST test clamp |
| CN109326900A (en) * | 2018-09-20 | 2019-02-12 | 国家电网有限公司 | A kind of electrical power wiring folder |
| CN109663827A (en) * | 2019-02-18 | 2019-04-23 | 绍兴康健精密不锈钢有限公司 | A kind of stretching clamp for stainless steel tube |
| CN110702399A (en) * | 2019-11-11 | 2020-01-17 | 金华乾缘智能科技有限公司 | Scissors/cutting pliers life test machine |
| CN111157884A (en) * | 2020-01-03 | 2020-05-15 | 中广核工程有限公司 | Relay resistance measurement system and method |
| CN114055356A (en) * | 2021-10-18 | 2022-02-18 | 国网河北省电力有限公司曲周县供电分公司 | Power test clamp for power overhaul |
| CN114324997A (en) * | 2021-12-28 | 2022-04-12 | 广东电网有限责任公司 | Loop resistance testing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070265620A1 (en) * | 2006-05-15 | 2007-11-15 | Olympus Winter & Ibe Gmbh | Vascular coagulation forceps |
| CN202421219U (en) * | 2011-11-29 | 2012-09-05 | 河南省电力公司南阳供电公司 | Lead clamp special for test |
| CN103487615A (en) * | 2013-09-23 | 2014-01-01 | 国家电网公司 | Wire clamp special for testing of transformer |
| CN204008719U (en) * | 2014-07-18 | 2014-12-10 | 国网山东齐河县供电公司 | Testing of equipment clamp |
-
2017
- 2017-10-31 CN CN201711048551.5A patent/CN107589281A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070265620A1 (en) * | 2006-05-15 | 2007-11-15 | Olympus Winter & Ibe Gmbh | Vascular coagulation forceps |
| CN202421219U (en) * | 2011-11-29 | 2012-09-05 | 河南省电力公司南阳供电公司 | Lead clamp special for test |
| CN103487615A (en) * | 2013-09-23 | 2014-01-01 | 国家电网公司 | Wire clamp special for testing of transformer |
| CN204008719U (en) * | 2014-07-18 | 2014-12-10 | 国网山东齐河县供电公司 | Testing of equipment clamp |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142806A (en) * | 2018-09-13 | 2019-01-04 | 国家电网有限公司 | HVDC TEST test clamp |
| CN109142806B (en) * | 2018-09-13 | 2024-01-09 | 国家电网有限公司 | High-voltage direct-current test wire clamp |
| CN109326900A (en) * | 2018-09-20 | 2019-02-12 | 国家电网有限公司 | A kind of electrical power wiring folder |
| CN109326900B (en) * | 2018-09-20 | 2019-12-31 | 国家电网有限公司 | Electric power binding clip |
| CN109663827A (en) * | 2019-02-18 | 2019-04-23 | 绍兴康健精密不锈钢有限公司 | A kind of stretching clamp for stainless steel tube |
| CN110702399A (en) * | 2019-11-11 | 2020-01-17 | 金华乾缘智能科技有限公司 | Scissors/cutting pliers life test machine |
| CN111157884A (en) * | 2020-01-03 | 2020-05-15 | 中广核工程有限公司 | Relay resistance measurement system and method |
| CN114055356A (en) * | 2021-10-18 | 2022-02-18 | 国网河北省电力有限公司曲周县供电分公司 | Power test clamp for power overhaul |
| CN114324997A (en) * | 2021-12-28 | 2022-04-12 | 广东电网有限责任公司 | Loop resistance testing device |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180116 |