CN204142774U - Handcart type breaker circuit resistance tester - Google Patents
Handcart type breaker circuit resistance tester Download PDFInfo
- Publication number
- CN204142774U CN204142774U CN201420631059.6U CN201420631059U CN204142774U CN 204142774 U CN204142774 U CN 204142774U CN 201420631059 U CN201420631059 U CN 201420631059U CN 204142774 U CN204142774 U CN 204142774U
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- CN
- China
- Prior art keywords
- tong arm
- binding clip
- type breaker
- lower tong
- handcart type
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Abstract
The utility model relates to handcart type breaker circuit resistance tester, comprise tong arm and lower tong arm, upper tong arm and lower tong arm are hinged by turning axle, upper tong arm and lower tong arm comprise binding clip and pincers tail respectively, turning axle is provided with support spring, and under support spring effect, upper tong arm and lower tong arm are expanding structure, the binding clip top of upper tong arm and the binding clip top of lower tong arm are equipped with fixed groove, and fixed groove is semi arch structure.The utility model utilizes support spring to regulate the size of dehiscing of upper tong arm and lower tong arm, adapts to the handcart type breaker of different electric pressure, different model; The utility model fixed groove is semi arch structure, be engaged with handcart type breaker moving contact spring fingertip projection, the tension force of described support spring is distributed to described moving contact spring fingertip, make its uniform stressed, contact area is larger, occlusion is tightr, avoids the peripheral spring stress of moving contact spring fingertip uneven and be out of shape; Prevent testing clamp from coming off.
Description
Technical field
The utility model relates to handcart type breaker circuit resistance tester, belongs to breaker technical field.
Background technology
Along with the prosperity and development of national economy, the living standard of the people improves constantly, power consumption progressively rises, for adaptation need for electricity state net progressively strengthens the dynamics of investment to power grid construction, 10kV and 35kV electric pressure handcart type breaker is used widely, as a routine test project of isolating switch, when loop resistance value directly can reflect the installation quality of isolating switch and be short-circuited, whether produce unallowed heating.
Due to the impact of handcart type breaker fracture texture, the testing clamp that existing producer joins needs to be clamped on terminals fingertip spring, causes the distortion of fingertip spring, impaired, affects the isolating switch life-span.Meanwhile, by the impact of fingertip spring, loop resistance value is unstable, there is larger deviation, adds number of times and the working time of on-the-spot test, greatly affect measuring accuracy and work efficiency.
Summary of the invention
For the deficiencies in the prior art, the utility model discloses handcart type breaker circuit resistance tester;
The utility model is applicable to the loop resistance test of handcart type breaker, avoid the damage of testing clamp rival car formula moving contact of breaker spring touch finger, the loop resistance solving handcart type breaker tests length consuming time, problem that measuring accuracy is low, improve test job efficiency and security, there is rational in infrastructure, easy to use, practical advantage.
The technical solution of the utility model is:
Handcart type breaker circuit resistance tester, comprise tong arm and lower tong arm, described upper tong arm and described lower tong arm are hinged by turning axle, described upper tong arm and described lower tong arm comprise binding clip and pincers tail respectively, described binding clip is connected by connecting hoop with described pincers tail, and described turning axle is provided with support spring, is equipped with p-wire interface on the binding clip of described upper tong arm and on the binding clip of described lower tong arm, under described support spring effect, described upper tong arm and described lower tong arm are expanding structure.
The advantage herein designed is, under described support spring effect, described upper tong arm and described lower tong arm are expanding structure, utilize support spring to regulate the size of dehiscing of described upper tong arm and described lower tong arm, adapt to the handcart type breaker of different electric pressure, different model; During wiring, the moving contact binding clip of the binding clip of described upper tong arm and described lower tong arm directly being inserted described handcart type breaker is inner, with described moving contact spring fingertip close contact, simple and fast, make contact resistance and actual motion value closer to; Described binding clip is connected by connecting hoop with described pincers tail, avoids tester to touch metallic member.
Preferred according to the utility model, the binding clip top of described upper tong arm and the binding clip top of described lower tong arm are equipped with fixed groove, and described fixed groove is semi arch structure.
The advantage herein designed is, described fixed groove is semi arch structure, be engaged with described handcart type breaker moving contact spring fingertip projection, the tension force of described support spring is distributed to described moving contact spring fingertip, make described moving contact spring fingertip uniform stressed, contact area is larger, and occlusion is tightr, it also avoid the peripheral spring stress of described moving contact spring fingertip uneven and be out of shape; Described fixed groove is closely engaged with described spring touch finger projection, prevents testing clamp from coming off.
Preferred according to the utility model, the distance between the binding clip top of described upper tong arm and the binding clip top of described lower tong arm is 100mm.
The advantage herein designed is, distance range between the binding clip top of described upper tong arm and the binding clip top of described lower tong arm is 100mm, be applicable to the test of 10kV and 35kV electric pressure handcart type breaker loop resistance, the moving contact internal diameter size of the isolating switch of different electric pressure, different model differs, and the distance between the binding clip top of described upper tong arm and the binding clip top of described lower tong arm guarantees the moving contact spring fingertip compact siro spinning technology of described fixed groove and the isolating switch of different electric pressure, different model.
Preferred according to the utility model, described p-wire interface is screw extrusion type structure, and described screw extrusion type structure comprises the nuts and bolt of supporting connection.
During use, by the line ose bag of the line nose of the voltage terminal of p-wire or the current terminal of p-wire on described bolt, by described nut and the described voltage link of bolt tightening fixing test line or the electric current wiring of p-wire.
The advantage herein designed is, described p-wire interface is screw extrusion type structure, swift and convenient to operate, be convenient to connection firmly, contact area is large, flowing through big current and not easily superheating phenomenon occurs, because being subject to excessive pulling force, the line nose of p-wire being damaged when avoiding folding and unfolding p-wire.
The pincers tail of described upper tong arm and the pincers tail of described lower tong arm all adopt epoxy resin material, guarantee that the binding clip of described upper tong arm and the binding clip of described lower tong arm insulate, namely the trial voltage tested and the test current of test isolated, ensure the degree of accuracy that described handcart type breaker loop resistance is tested.
The binding clip of described upper tong arm and the binding clip of described lower tong arm all adopt copper material, there is good electric conductivity, the binding clip of the binding clip of described upper tong arm, described lower tong arm and the line nose of p-wire, the moving contact spring fingertip of described handcart type breaker are conducted electricity well.
The operational process of described resistance test pincers:
During test handcart type breaker loop resistance, to the binding clip top of described upper tong arm and the binding clip top force of described lower tong arm, compress described support spring, make the binding clip tip contact of the binding clip top of described upper tong arm and described lower tong arm, described handcart type breaker moving contact inside is stretched on the binding clip top of the binding clip top of described upper tong arm and described lower tong arm, and described semicircle fixed groove is engaged under the effect of described support spring with described handcart type breaker moving contact spring fingertip projection.
The beneficial effects of the utility model are:
1, the utility model is under described support spring effect, described upper tong arm and described lower tong arm are expanding structure, utilize support spring to regulate the size of dehiscing of described upper tong arm and described lower tong arm, adapt to the handcart type breaker of different electric pressure, different model; During wiring, the moving contact binding clip of the binding clip of described upper tong arm and described lower tong arm directly being inserted described handcart type breaker is inner, with described moving contact spring fingertip close contact, simple and fast, make contact resistance and actual motion value closer to; Described binding clip is connected by connecting hoop with described pincers tail, avoids tester to touch metallic member;
2, fixed groove described in the utility model is semi arch structure, be engaged with described handcart type breaker moving contact spring fingertip projection, the tension force of described support spring is distributed to described moving contact spring fingertip, make described moving contact spring fingertip uniform stressed, contact area is larger, occlusion is tightr, it also avoid the peripheral spring stress of described moving contact spring fingertip uneven and be out of shape; Described fixed groove is closely engaged with described spring touch finger projection, prevents testing clamp from coming off;
3, p-wire interface described in the utility model is screw extrusion type structure, swift and convenient to operate, be convenient to connection firmly, contact area is large, flowing through big current and not easily superheating phenomenon occurs, when avoiding folding and unfolding p-wire, because being subject to excessive pulling force, the line nose of p-wire being damaged.
Accompanying drawing explanation
Fig. 1 is side-looking structural representation of the present utility model;
Fig. 2 is plan structure schematic diagram of the present utility model;
1, tail is clamped; 2, turning axle; 3, support spring; 4, connecting hoop; 5, binding clip; 6, p-wire interface; 7, fixed groove.
Embodiment
Below in conjunction with embodiment and Figure of description, the utility model is limited further, but be not limited thereto.
Embodiment
Handcart type breaker circuit resistance tester, comprise tong arm and lower tong arm, described upper tong arm and described lower tong arm are hinged by turning axle 2, described upper tong arm and described lower tong arm comprise binding clip 5 and pincers tail 1 respectively, described binding clip 5 is connected by connecting hoop 4 with described pincers tail 1, described turning axle 2 is provided with support spring 3, p-wire interface 6 is equipped with on the binding clip 5 of described upper tong arm and on the binding clip 5 of described lower tong arm, under described support spring 3 acts on, described upper tong arm and described lower tong arm are expanding structure.
The advantage herein designed is, under described support spring 3 acts on, described upper tong arm and described lower tong arm are expanding structure, utilize support spring 3 to regulate the size of dehiscing of described upper tong arm and described lower tong arm, adapt to the handcart type breaker of different electric pressure, different model; During wiring, the moving contact binding clip 5 of the binding clip 5 of described upper tong arm and described lower tong arm directly being inserted described handcart type breaker is inner, with described moving contact spring fingertip close contact, simple and fast, make contact resistance and actual motion value closer to; Described binding clip 5 is connected by connecting hoop 4 with described pincers tail 1, avoids tester to touch metallic member.
Binding clip 5 top of described upper tong arm and binding clip 5 top of described lower tong arm are equipped with fixed groove 7, and described fixed groove 7 is semi arch structure.
The advantage herein designed is, described fixed groove 7 is semi arch structure, be engaged with described handcart type breaker moving contact spring fingertip projection, the tension force of described support spring 3 is distributed to described moving contact spring fingertip, make described moving contact spring fingertip uniform stressed, contact area is larger, and occlusion is tightr, it also avoid the peripheral spring stress of described moving contact spring fingertip uneven and be out of shape; Described fixed groove 7 is closely engaged with described spring touch finger projection, prevents testing clamp from coming off.
Distance between binding clip 5 top of described upper tong arm and binding clip 5 top of described lower tong arm is 100mm.
The advantage herein designed is, distance range between binding clip 5 top of described upper tong arm and binding clip 5 top of described lower tong arm is 100mm, be applicable to the test of 10kV and 35kV electric pressure handcart type breaker loop resistance, the moving contact internal diameter size of the isolating switch of different electric pressure, different model differs, and the distance between binding clip 5 top of described upper tong arm and binding clip 5 top of described lower tong arm guarantees the moving contact spring fingertip compact siro spinning technology of described fixed groove 7 and the isolating switch of different electric pressure, different model.
Described p-wire interface 6 is screw extrusion type structure, and described screw extrusion type structure comprises the nuts and bolt of supporting connection.
During use, by the line ose bag of the line nose of the voltage terminal of p-wire or the current terminal of p-wire on described bolt, by described nut and the described voltage link of bolt tightening fixing test line or the electric current wiring of p-wire.
The advantage herein designed is, described p-wire interface 6 is screw extrusion type structure, swift and convenient to operate, be convenient to connection firmly, contact area is large, flowing through big current and not easily superheating phenomenon occurs, because being subject to excessive pulling force, the line nose of p-wire being damaged when avoiding folding and unfolding p-wire.
The pincers tail 1 of described upper tong arm and the pincers tail 1 of described lower tong arm all adopt epoxy resin material, guarantee that the binding clip 5 of described upper tong arm insulate with the binding clip 5 of described lower tong arm, namely the trial voltage tested and the test current of test isolated, ensure the degree of accuracy that described handcart type breaker loop resistance is tested.
The binding clip 5 of described upper tong arm and the binding clip 5 of described lower tong arm all adopt copper material, there is good electric conductivity, the binding clip 5 of the binding clip 5 of described upper tong arm, described lower tong arm is conducted electricity well with the line nose of p-wire, the moving contact spring fingertip of described handcart type breaker.
The operational process of described resistance test pincers:
During test handcart type breaker loop resistance, to binding clip 5 top of described upper tong arm and the binding clip 5 top force of described lower tong arm, compress described support spring 3, make binding clip 5 tip contact of binding clip 5 top of described upper tong arm and described lower tong arm, described handcart type breaker moving contact inside is stretched on binding clip 5 top of binding clip 5 top of described upper tong arm and described lower tong arm, and described semicircle fixed groove 7 is engaged under the effect of described support spring 3 with described handcart type breaker moving contact spring fingertip projection.
Claims (4)
1. handcart type breaker circuit resistance tester, it is characterized in that, comprise tong arm and lower tong arm, described upper tong arm and described lower tong arm are hinged by turning axle, described upper tong arm and described lower tong arm comprise binding clip and pincers tail respectively, described binding clip is connected by connecting hoop with described pincers tail, described turning axle is provided with support spring, p-wire interface is equipped with on the binding clip of described upper tong arm and on the binding clip of described lower tong arm, under described support spring effect, described upper tong arm and described lower tong arm are expanding structure.
2. handcart type breaker circuit resistance tester according to claim 1, is characterized in that, the binding clip top of described upper tong arm and the binding clip top of described lower tong arm are equipped with fixed groove, and described fixed groove is semi arch structure.
3. handcart type breaker circuit resistance tester according to claim 1, is characterized in that, the distance between the binding clip top of described upper tong arm and the binding clip top of described lower tong arm is 100mm.
4. the handcart type breaker circuit resistance tester according to claim 1-3 any one, is characterized in that, described p-wire interface is screw extrusion type structure, and described screw extrusion type structure comprises the nuts and bolt of supporting connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420631059.6U CN204142774U (en) | 2014-10-28 | 2014-10-28 | Handcart type breaker circuit resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420631059.6U CN204142774U (en) | 2014-10-28 | 2014-10-28 | Handcart type breaker circuit resistance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204142774U true CN204142774U (en) | 2015-02-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420631059.6U Expired - Fee Related CN204142774U (en) | 2014-10-28 | 2014-10-28 | Handcart type breaker circuit resistance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204142774U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334359A (en) * | 2015-12-10 | 2016-02-17 | 国网四川省电力公司成都供电公司 | Special-purpose test wire clip for circuit breaker tulip contact |
| CN107703334A (en) * | 2017-09-07 | 2018-02-16 | 武汉迪昌科技股份有限公司 | Train Insulation monitoring special fixture |
| CN108226579A (en) * | 2016-11-20 | 2018-06-29 | 国网江西省电力公司赣东北供电分公司 | A kind of Novel bunk current voltage is mutually than the automatic plug binding clip device of tester |
| CN109444486A (en) * | 2019-01-08 | 2019-03-08 | 国网山东省电力公司泰安供电公司 | Testing clamp and central cabinet circuit breaker loop resistance test device |
| CN109884577A (en) * | 2019-04-09 | 2019-06-14 | 广东电网有限责任公司 | A kind of dedicated tooth of Ammeter Test instrument stings testing clamp |
| CN110398683A (en) * | 2019-06-06 | 2019-11-01 | 国网山东省电力公司高青县供电公司 | A kind of improvement type handcart type breaker loop resistance test clip |
| CN112505418A (en) * | 2020-12-02 | 2021-03-16 | 国网山西省电力公司阳泉供电公司 | Circuit breaker loop direct current resistance auxiliary test tool and method |
-
2014
- 2014-10-28 CN CN201420631059.6U patent/CN204142774U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334359A (en) * | 2015-12-10 | 2016-02-17 | 国网四川省电力公司成都供电公司 | Special-purpose test wire clip for circuit breaker tulip contact |
| CN108226579A (en) * | 2016-11-20 | 2018-06-29 | 国网江西省电力公司赣东北供电分公司 | A kind of Novel bunk current voltage is mutually than the automatic plug binding clip device of tester |
| CN108226579B (en) * | 2016-11-20 | 2023-10-27 | 国网江西省电力公司赣东北供电分公司 | Novel automatic plug binding clip device of high-low voltage current mutual ratio tester |
| CN107703334A (en) * | 2017-09-07 | 2018-02-16 | 武汉迪昌科技股份有限公司 | Train Insulation monitoring special fixture |
| CN109444486A (en) * | 2019-01-08 | 2019-03-08 | 国网山东省电力公司泰安供电公司 | Testing clamp and central cabinet circuit breaker loop resistance test device |
| CN109444486B (en) * | 2019-01-08 | 2024-05-24 | 国网山东省电力公司泰安供电公司 | Test clamp and circuit breaker loop resistance test device of centrally installed switchgear |
| CN109884577A (en) * | 2019-04-09 | 2019-06-14 | 广东电网有限责任公司 | A kind of dedicated tooth of Ammeter Test instrument stings testing clamp |
| CN110398683A (en) * | 2019-06-06 | 2019-11-01 | 国网山东省电力公司高青县供电公司 | A kind of improvement type handcart type breaker loop resistance test clip |
| CN112505418A (en) * | 2020-12-02 | 2021-03-16 | 国网山西省电力公司阳泉供电公司 | Circuit breaker loop direct current resistance auxiliary test tool and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20151028 |
|
| EXPY | Termination of patent right or utility model |