CN103513110A - Device for testing return circuit of switch equipment - Google Patents
Device for testing return circuit of switch equipment Download PDFInfo
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- CN103513110A CN103513110A CN201310495147.8A CN201310495147A CN103513110A CN 103513110 A CN103513110 A CN 103513110A CN 201310495147 A CN201310495147 A CN 201310495147A CN 103513110 A CN103513110 A CN 103513110A
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Abstract
The invention discloses a device for testing a return circuit of switch equipment. An upper testing clamp is arranged on a static contact of the switch equipment; a lower testing clamp is arranged on a moving contact of the switch equipment; the upper testing clamp and the lower testing clamp are connected with a return circuit resistance testing instrument; testing probes are arranged on both the upper testing clamp and the lower testing clamp; compression springs are arranged on the testing probes; metal conical probes are adopted for the testing probes, which is conducive to breaking through a tested sample to enable the probes to be connected with surface impurities and oxidation layers, so that the quality of testing data is ensured; the accuracy in return circuit resistance testing is improved; as a tension spring is arranged between two handles of the upper testing clamp and the lower testing clamp, the flexible clamping of a tested part of the tested sample can be facilitated due to the arrangement of the tension spring, and the testing accuracy in the return circuit resistance testing is further improved; the device is simple in structure and high in practicability, and has high popularization and application values.
Description
Technical field
The invention belongs to loop resistance technical field of measurement and test, relate in particular to a kind of device for the test of switchgear loop resistance.
Background technology
At present, electric power all will be tested its loop resistance in handing-over, operational process with switchgear, grasps the contact situation of switchgear by the test of loop resistance.Loop resistance mainly adopts the DC current that is not less than 100A to pass through switchgear at present, the method counter circuit resistance value (Rx=U/I) of test test specimen two ends pressure drop, but in loop resistance test process, when especially testing old switchgear, can there is to affect due to wiring clamp and equipment under test bad connection the situation of test result.
Summary of the invention
The invention provides a kind of device for the test of switchgear loop resistance, being intended to solve current loop resistance mainly adopts the DC current that is not less than 100A to pass through switchgear, the method counter circuit resistance value of test test specimen two ends pressure drop, but in loop resistance test process, when especially testing old switchgear, can there is to affect due to wiring clamp and equipment under test bad connection the problem of test result.
The object of the present invention is to provide a kind of device for the test of switchgear loop resistance, this device comprises: above test clamp, lower test clamp, circuit resistance tester, described upper test clamp are arranged on the static contact of switchgear, described lower test clamp are arranged on the moving contact of switchgear, described upper test clamp and lower test clamp are connected with described circuit resistance tester, on described upper test clamp and lower test clamp, be provided with test probe, on described test probe, be provided with Compress Spring.
Further, described test probe adopts metal taper probe.
Further, in the middle of two handles of described upper test clamp and lower test clamp, be provided with back-moving spring.
Device for the test of switchgear loop resistance provided by the invention, upper test clamp are arranged on the static contact of switchgear, lower test clamp are arranged on the moving contact of switchgear, upper test clamp and lower test clamp are connected with circuit resistance tester, on upper test clamp and lower test clamp, be provided with test probe, on test probe, be provided with Compress Spring, test probe adopts metal taper probe, be conducive to break through test specimen connecting surface impurity and oxide layer, guarantee the quality of test data, improved the accuracy of loop resistance test, in the middle of two handles of upper test clamp and lower test clamp, be provided with back-moving spring, being provided with of back-moving spring is beneficial to test specimen test position added and held neatly, further improved the test accuracy of loop resistance test, simple in structure, practical, having stronger propagation and employment is worth.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device for switchgear loop resistance test that provides of the embodiment of the present invention.
In figure: 1, static contact; 2, moving contact; 3, upper test clamp; 4, lower test clamp; 5, test probe; 6, circuit resistance tester; 7, Compress Spring; 8, back-moving spring.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, and be not used in restriction invention.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
Fig. 1 shows the structure of the device for the test of switchgear loop resistance that the embodiment of the present invention provides.For convenience of explanation, only show part related to the present invention.
As shown in Figure 1, device for the test of switchgear loop resistance provided by the invention, upper test clamp 3, lower test clamp 4, test probe 5, Compress Spring 7, circuit resistance tester 6, consist of, wherein, static contact 1 is arranged on the left side of test clamp 3; Below upper test clamp 3 following, be provided with lower test clamp 4; Test probe 5 is separately positioned on the bottom of test clamp 3 and lower test clamp 4; Compress Spring 7 is arranged on the bottom of test probe 5; Circuit resistance tester 6 is connected with upper test clamp 3 and lower test clamp 4.
Between two handles of upper test clamp 3 and lower test clamp 4, be provided with back-moving spring 8, being provided with of back-moving spring 8 was beneficial to flexibly the adding to hold and regulate of test position, thereby was further conducive to improve test accuracy.
Utilize the conventional mode of connection and probe mode to detect different test products, the difference of comparing result, defines the feasibility of method; Through tester's repetition test, by the analysis to test findings, determine the force value of probe holddown spring; Design processing upper test clamp 3 and lower test clamp 4, and the upper test clamp 3 and the lower test clamp 4 that design are detected for loop resistance.
The device for the test of switchgear loop resistance that the embodiment of the present invention provides, upper test clamp 3 are arranged on the static contact 1 of switchgear, lower test clamp 4 are arranged on the moving contact 2 of switchgear, upper test clamp 3 and lower test clamp 4 are connected with circuit resistance tester 6, on upper test clamp 3 and lower test clamp 4, be provided with test probe 5, on test probe 5, be provided with Compress Spring 7, test probe 5 adopts metal taper probe, be conducive to break through test specimen connecting surface impurity and oxide layer, guarantee the quality of test data, improved the accuracy of loop resistance test, in the middle of two handles of upper test clamp 3 and lower test clamp 4, be provided with back-moving spring 8, being provided with of back-moving spring 8 is beneficial to test specimen test position added and held neatly, further improved the test accuracy of loop resistance test, simple in structure, practical, having stronger propagation and employment is worth.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. the device for switchgear loop resistance test, this device comprises: above test clamp, lower test clamp, circuit resistance tester, described upper test clamp are arranged on the static contact of switchgear, described lower test clamp are arranged on the moving contact of switchgear, described upper test clamp and lower test clamp are connected with described circuit resistance tester, it is characterized in that, on described upper test clamp and lower test clamp, be provided with test probe, on described test probe, be provided with Compress Spring.
2. device as claimed in claim 1, is characterized in that, described test probe adopts metal taper probe.
3. device as claimed in claim 1, is characterized in that, in the middle of two handles of described upper test clamp and lower test clamp, is provided with back-moving spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310495147.8A CN103513110B (en) | 2013-10-21 | 2013-10-21 | A kind of device for return circuit of switch equipment test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310495147.8A CN103513110B (en) | 2013-10-21 | 2013-10-21 | A kind of device for return circuit of switch equipment test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103513110A true CN103513110A (en) | 2014-01-15 |
| CN103513110B CN103513110B (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310495147.8A Active CN103513110B (en) | 2013-10-21 | 2013-10-21 | A kind of device for return circuit of switch equipment test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103513110B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110320408A (en) * | 2019-07-31 | 2019-10-11 | 贵州振华华联电子有限公司 | A kind of Miniature rotary switch measuring contact resistance device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009229345A (en) * | 2008-03-25 | 2009-10-08 | Nec Infrontia Corp | Inspection tool |
| CN201637758U (en) * | 2010-03-26 | 2010-11-17 | 河南省电力公司驻马店供电公司 | Special pincer for measuring loop resistance of trolley switch |
| CN203148982U (en) * | 2013-04-03 | 2013-08-21 | 国家电网公司 | Test fixture for loop resistance of circuit breaker |
| CN203164216U (en) * | 2013-01-29 | 2013-08-28 | 福建省电力有限公司 | Handcart switch loop resistance test opening unilateral type cable clamp |
| CN203216945U (en) * | 2013-03-11 | 2013-09-25 | 福建省电力有限公司 | Special-purpose potential sampling clamp |
-
2013
- 2013-10-21 CN CN201310495147.8A patent/CN103513110B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009229345A (en) * | 2008-03-25 | 2009-10-08 | Nec Infrontia Corp | Inspection tool |
| CN201637758U (en) * | 2010-03-26 | 2010-11-17 | 河南省电力公司驻马店供电公司 | Special pincer for measuring loop resistance of trolley switch |
| CN203164216U (en) * | 2013-01-29 | 2013-08-28 | 福建省电力有限公司 | Handcart switch loop resistance test opening unilateral type cable clamp |
| CN203216945U (en) * | 2013-03-11 | 2013-09-25 | 福建省电力有限公司 | Special-purpose potential sampling clamp |
| CN203148982U (en) * | 2013-04-03 | 2013-08-21 | 国家电网公司 | Test fixture for loop resistance of circuit breaker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110320408A (en) * | 2019-07-31 | 2019-10-11 | 贵州振华华联电子有限公司 | A kind of Miniature rotary switch measuring contact resistance device |
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| Publication number | Publication date |
|---|---|
| CN103513110B (en) | 2016-08-17 |
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