CN205426957U - Switch equipment loop resistance subtest pole - Google Patents
Switch equipment loop resistance subtest pole Download PDFInfo
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- CN205426957U CN205426957U CN201620237449.4U CN201620237449U CN205426957U CN 205426957 U CN205426957 U CN 205426957U CN 201620237449 U CN201620237449 U CN 201620237449U CN 205426957 U CN205426957 U CN 205426957U
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- bar
- subtest
- loop resistance
- switch equipment
- hole
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- 238000012360 testing method Methods 0.000 claims abstract description 43
- 230000008961 swelling Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a switch equipment loop resistance subtest pole, which comprises a body, the ejector pin, the holding rod and the tight pole that expands, the holding rod cartridge is in the lower part of body, the ejector pin cartridge is at the rear portion of body, it moves along to adjust the body through the bloated tight pole of cartridge on the ejector pin, make this physical contact contact distending, firm block is in the best test point of circuit breaker contact, be convenient for test the firm insertion that presss from both sides, the stability of holding test in -process, the emergence of burning out contact springing has been avoided, validity and security that the pilot project is develoied improve, the accuracy of test and operating personnel's security improve.
Description
Technical field
This utility model belongs to electric power safety field, relates to safety inspection aid, especially a kind of Switch equipment loop resistance subtest bar.
Background technology
In transformer station in the electrical test of primary equipment, the electrical test of the Switch equipment such as chopper, disconnecting switch is particularly significant, and many pilot projects there is also problem demanding prompt solution.As a example by loop resistance measurement, present chopper producer type kind is various, finds that some chopper, due to reasons such as fracture textures, the phenomenon that contact activity cannot be fixed occurs at the scene in actual measurement.The most common chopper Mume flower contact, as it is shown in figure 1, in recess 4 in chopper Mume flower contact 1, be provided with movable contact 2 outside recess, the outer concentric at movable contact is set with spring 3.It is only optimal test point need to clip to ramp the recess of Mume flower contact when loop resistance is tested in.And contact connecting lever side is often closed by insulant, when causing loop resistance measurement, test connection folder can only be clipped on movable contact, the optimal test point of the required test of chopper cannot be clipped to, the data so tested out are bigger than normal, and the numerical value measured is the most different every time, error is bigger, it is impossible to objectively respond the exact value of loop resistance；If it addition, clip to, on the spring of Mume flower contact, easily burn when logical super-high-current or damage touch spring by the electric current of loop resistance measurement instrument, affect test accuracy and work efficiency, tester may be caused security threat simultaneously.
Utility model content
In place of the purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of easy to carry, simple to operate, test precise and high efficiency and safety high Switch equipment loop resistance subtest folder.
This utility model solves above-mentioned technical problem is that and takes techniques below scheme to realize:
A kind of Switch equipment loop resistance subtest bar, including body, push rod, holding rod and swelling bar, described body is the cavity tubular structure that axle center is shaped with through hole, this body portion integrally makes contact contact, this contact contact top offers multiple rectangular channel with one heart, and the through hole back-end of this body is inwardly provided with screw thread；Screw rod has integrally been made in described push rod front end, and this screw coaxial is inserted in described body through-holes, and described push rod rear portion radially offers swelling bar preformed hole, and described swelling bar is coaxially through in described swelling bar preformed hole；Described rear body side radially offers holding rod preformed hole, and described holding rod is coaxially plugged in described holding rod preformed hole.
And, the through hole of described body is different diameter hole, and its rear end diameter is more than point diameter, and the diameter of the made screw rod in push rod front end matches with the through hole back-end diameter of body.
And, between outer body, described body portion and rear body, coaxially make the groove for pressing from both sides test clamp.
And, described rectangular channel is at least four.
And, described Switch equipment loop resistance subtest bar is red copper material.
Advantage of the present utility model and having the beneficial effect that
1, reference test bar simple in construction of the present utility model, solid firm, screw rod by swelling bar regulation push rod, thus control body, body portion is made integrally to make contact contact distending, in the firm optimal test point being fastened on contact of breaker, it is simple to the firm of test clamp sandwiches, keep the stability in test process, improve accuracy and the safety of operator of test.
2, reference test bar body of the present utility model is the cavity tubular structure being shaped with through hole for axle center, and one is to facilitate push rod to insert, and more effectively controls body when regulating push rod；Two is to save material, reduces the volume of reference test bar, light weight, is convenient for carrying and operates, saves man power and material's cost, improve experiment work efficiency.
3, the holding rod of reference test bar of the present utility model is radially plugged in described holding rod preformed hole, and in use operator can hold holding rod, makes body fix, and stress balance, simple to operate, is effectively improved test accuracy.
4, this utility model is reasonable in design, simple to operate, designs a kind of Switch equipment test special testing tool pointedly, this instrument can directly, the optimal test point of contact switch contact well, especially breaker loop resistor is measured especially suitable.The most important thing is to solve the Switch loop resistance test inaccurate problem of data the most generally existed, avoid the generation burning touch spring phenomenon, improve effectiveness and safety that pilot project is carried out, can also use in other pilot projects such as ac voltage withstanding measurement, testing mechanical characteristic, analysis and lean management for test data provide technology and ensure, can vigorously promote the use in power engineering.
Accompanying drawing explanation
Fig. 1 is chopper Mume flower contact schematic diagram；
Fig. 2 is front view of the present utility model；
Fig. 3 is the dismounting figure (body part section) of Fig. 2.
Detailed description of the invention
Below by specific embodiment, the utility model is described in further detail, and following example are illustrative, is not determinate, it is impossible to limits protection domain of the present utility model with this.
A kind of Switch equipment loop resistance subtest bar, as in figure 2 it is shown, include body 6, push rod 10, holding rod 11 and swelling bar 9.Being shaped with the cavity tubular structure of through hole 12 as it is shown on figure 3, described body is axle center, this body portion integrally makes contact contact 5, and this contact contact top offers at least four rectangular channel with one heart, and the through hole back-end of this body is inwardly provided with screw thread；The through hole of described body is different diameter hole, and its rear end diameter is more than point diameter, and the diameter of the made screw rod in push rod front end matches with the through hole back-end diameter of body.At outer body, coaxially make groove 7 between described body portion and rear body, be used for pressing from both sides test clamp；Screw rod 8 has integrally been made in described push rod front end, and this screw coaxial is inserted in described body through-holes, and described push rod rear portion radially offers swelling bar preformed hole 14, and described swelling bar is coaxially through in described swelling bar preformed hole；Described rear body side radially offers holding rod preformed hole 13, and described holding rod is coaxially plugged in described holding rod preformed hole.Described Switch equipment loop resistance subtest bar is red copper material.
Operation principle of the present utility model: first each several part action bars grafting of this reference test bar is entered in each preformed hole, assembled complete, it is then inserted into the recess of chopper Mume flower contact, hold holding rod and fix body, twist swelling bar clockwise, swelling bar drives body to make end in contact contact distending before reference test bar, until with chopper Mume flower contact recess inwall against contacting, can not loosen.Will just after connecting test apparatus (circuit resistance tester) wiring (red line) negative (black line) electric current line wire clamp clip to respectively at testing wire clamp；Checking that each position of each link connects correct, electric current line ensures to connect reliably, firmly；Test apparatus is energized, and measures.
At present, reference test bar of the present utility model has successfully passed through on-the-spot practical operation feasibility and has proved, this reference test bar has the advantage that compared with other testing tools
(1) data accuracy (especially for loop resistance pilot project) is improved.
This reference test bar has been applied to the 10kV chopper of VS1 (ZN63A) model, records loop resistance numerical value and is: A phase 76 μ Ω before using this reference test bar, B phase 77 μ Ω, C phase 81 μ Ω.After using reference test bar, the test point that conversion contact is different, recording 5 secondary data is: A phase 46 μ Ω, B phase 44 μ Ω, C phase 47 μ Ω；A phase 45 μ Ω, B phase 43 μ Ω, C phase 46 μ Ω；A phase 46 μ Ω, B phase 45 μ Ω, C phase 46 μ Ω；A phase 44 μ Ω, B phase 44 μ Ω, C phase 45 μ Ω；A phase 45 μ Ω, B phase 45 μ Ω, C phase 46 μ Ω.
Thus may certify that this this utility model has a significant effect for the reliability improving test data.
(2) simple operation, safeguards simple.
(3) simple in construction, it is simple to carry and use.
(4) as high-pottings such as ac voltage withstandings, wiring also can be avoided to tangle loosely or the generation of the dangerous situation such as short circuit grounding.
(5) applied widely, room for improvement is big.
Claims (5)
1. a Switch equipment loop resistance subtest bar, it is characterized in that: include body, push rod, holding rod and swelling bar, described body is the cavity tubular structure that axle center is shaped with through hole, this body portion integrally makes contact contact, this contact contact top offers multiple rectangular channel with one heart, and the through hole back-end of this body is inwardly provided with screw thread；Screw rod has integrally been made in described push rod front end, and this screw coaxial is inserted in described body through-holes, and described push rod rear portion radially offers swelling bar preformed hole, and described swelling bar is coaxially through in described swelling bar preformed hole；Described rear body side radially offers holding rod preformed hole, and described holding rod is coaxially plugged in described holding rod preformed hole.
A kind of Switch equipment loop resistance subtest bar the most according to claim 1, it is characterized in that: the through hole of described body is different diameter hole, its rear end diameter is more than point diameter, and the diameter of the made screw rod in push rod front end matches with the through hole back-end diameter of body.
A kind of Switch equipment loop resistance subtest bar the most according to claim 1, it is characterised in that: between outer body, described body portion and rear body, coaxially make the groove for pressing from both sides test clamp.
A kind of Switch equipment loop resistance subtest bar the most according to claim 1, it is characterised in that: described rectangular channel is at least four.
A kind of Switch equipment loop resistance subtest bar the most according to claim 1, it is characterised in that: described Switch equipment loop resistance subtest bar is red copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237449.4U CN205426957U (en) | 2016-03-24 | 2016-03-24 | Switch equipment loop resistance subtest pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237449.4U CN205426957U (en) | 2016-03-24 | 2016-03-24 | Switch equipment loop resistance subtest pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205426957U true CN205426957U (en) | 2016-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620237449.4U Active CN205426957U (en) | 2016-03-24 | 2016-03-24 | Switch equipment loop resistance subtest pole |
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| Country | Link |
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| CN (1) | CN205426957U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064647A (en) * | 2017-04-24 | 2017-08-18 | 东营市垦利区明珠电力工程有限公司 | A kind of handcart type breaker loop resistance test device |
| CN109212317A (en) * | 2017-06-30 | 2019-01-15 | 河南平高通用电气有限公司 | A kind of switchgear major loop resistance measurement tooling |
| CN111351987A (en) * | 2020-04-22 | 2020-06-30 | 国家电网有限公司 | Handcart switch loop resistance test wiring device |
| CN113884715A (en) * | 2021-10-26 | 2022-01-04 | 广东电网有限责任公司 | GIS equipment loop resistance test appurtenance |
-
2016
- 2016-03-24 CN CN201620237449.4U patent/CN205426957U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064647A (en) * | 2017-04-24 | 2017-08-18 | 东营市垦利区明珠电力工程有限公司 | A kind of handcart type breaker loop resistance test device |
| CN107064647B (en) * | 2017-04-24 | 2018-06-29 | 东营市垦利区明珠电力工程有限公司 | A kind of handcart type breaker loop resistance test device |
| CN109212317A (en) * | 2017-06-30 | 2019-01-15 | 河南平高通用电气有限公司 | A kind of switchgear major loop resistance measurement tooling |
| CN109212317B (en) * | 2017-06-30 | 2021-08-13 | 河南平高通用电气有限公司 | Cubical switchboard major loop resistance measurement frock |
| CN111351987A (en) * | 2020-04-22 | 2020-06-30 | 国家电网有限公司 | Handcart switch loop resistance test wiring device |
| CN113884715A (en) * | 2021-10-26 | 2022-01-04 | 广东电网有限责任公司 | GIS equipment loop resistance test appurtenance |
| CN113884715B (en) * | 2021-10-26 | 2023-07-21 | 广东电网有限责任公司 | GIS equipment loop resistance test appurtenance |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |