CN201122116Y - Measuring apparatus for contact pressure of isolating switch contact head - Google Patents
Measuring apparatus for contact pressure of isolating switch contact head Download PDFInfo
- Publication number
- CN201122116Y CN201122116Y CNU2007201264553U CN200720126455U CN201122116Y CN 201122116 Y CN201122116 Y CN 201122116Y CN U2007201264553 U CNU2007201264553 U CN U2007201264553U CN 200720126455 U CN200720126455 U CN 200720126455U CN 201122116 Y CN201122116 Y CN 201122116Y
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- Prior art keywords
- contact
- metal bar
- contact pressure
- static contact
- resistance strain
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Abstract
The utility model discloses an isolating switch contact contact pressure measuring device, which includes a resistance strain gauge 4, a digital display controller 5, and an analogue fixed contact. The pressure measuring device of the utility model is characterized in that the main body of the analogue fixed contact is a metal bar 1, two measuring holes 2 are symmetrically arranged on the two ends of the metal bar 1; the two measuring holes 2 are orthogonal to the central hole of the metal bar 1. The resistance strain gauge 4 is arranged in the measuring holes 2, and is connected with the digital display controller 5. By arranging the resistance strain gauge on the analogue fixed contact, the pressure measuring device of the utility model can conveniently measure the contact pressure of the moving and the fixed contacts, and can effectively check and control the contact pressure of the moving and the fixed contacts of a factory-leaving isolating switch.
Description
Technical field
The utility model relates to the contact pressure fields of measurement, particularly a kind of isolation switch contact contact pressure measurement mechanism.
Background technology
Disconnector generally all is the purpose that reaches conduction by the clamp of its dynamic/static contact, and the pressure survey that contact is contacted never has effective means of testing.During the product export debugging test, the artificial simulation static contact front and back of using promote sensation, measure contact gap with clearance gauge, do not have quantized value to embody, and can not well guarantee the product contact pressure.
Field operation experiences shows that isolation switch contact heating burning phenomenon is commonplace, even the temperature rise when 60% rated load that has just surpasses setting.Some dynamic/static contact contact pressure is little, and contact resistance increases, and the contact position generates heat and causes temperature to raise.Some dynamic/static contact gap even very big forms cross section, galvanic circle deficiency, so that loads when big, and it is overheated to produce, and finally causes the isolation switch contact scaling loss.Because the contact pressure deficiency causes the situation of dynamic/static contact in the on-the-spot scaling loss of operation, become a harm greatly of electric power netting safe running.
Summary of the invention
Order of the present utility model is to provide a kind of isolation switch contact contact pressure measurement mechanism, and scientific quantification moving contact and fixed contact of isolating switch contact pressure improves the stability of the product quality of dispatching from the factory, thereby ensures electric power netting safe running.
In order to solve the problems of the technologies described above, the technical solution of the utility model comprises: resistance strain gage, digital display controller, simulation static contact, the main body of this simulation static contact is a metal bar, the two ends symmetry of this metal bar has two measured holes, the center pit quadrature of this measured hole and this metal bar, resistance strain gage is installed in the measured hole, and described resistance strain gage is connected with digital display controller.
Further improvement of the utility model is to have strain to strengthen groove on the metal bar of this simulation static contact, and this strain strengthens groove and symmetrical distribution parallel with the center line of corresponding measured hole.
This simulation static contact adopts 50 chrome alum elastic alloy materials to make.
Because the utility model can be measured the contact pressure of dynamic and static contact very easily by at the simulation static contact resistance strain gage being installed, and makes the contact pressure of the dynamic and static contact of the disconnector that dispatches from the factory effectively be detected and control.Simultaneously, simulation static contact of the present utility model adopts 50 chrome alum elastic alloy materials to make, its metal bar has and also has strain on center pit, this metal bar and strengthen groove, these technical characterictics have also strengthened the strain sensitivity of simulation static contact to pressure, and therefore measurement of the present utility model is accurate, precision is high.
Description of drawings
Below in conjunction with description of drawings and specific embodiment the utility model is further illustrated.
Fig. 1 is simulation static contact structure figure of the present utility model.
Embodiment
With reference to Fig. 1, the main body of simulation static contact is a metal bar 1, the shape of metal bar 1, size are identical with the static contact of corresponding disconnector, the two ends symmetry of metal bar 1 has two measured holes 2, the center pit quadrature of this measured hole 2 and metal bar 1, have strain on the metal bar 1 and strengthen groove 3,2 pairs of each measured holes should have 4 strains to strengthen groove 3, and strain strengthens groove 3 and symmetrical distribution parallel with the center line of corresponding measured hole 2.The simulation static contact can adopt with a kind of 50 chrome alum elastic alloy materials to be made.
With glue resistance strain gage 4 is bonded in the corresponding measured hole 2, when the moving contact clamp of disconnector to be measured is simulated static contact, the micro-deformation of simulation static contact is by resistance strain gage 4 samplings, this sampled signal is input to numeral and shows controller 5, numeral shows that controller 5 carries out data processing, contact pressure is shown,, judge whether the quality of this disconnector is qualified according to this contact pressure value.Resistance strain gage 4 shows that with numeral the line of controller 5 passes by the center pit of simulating static contact metal bar 1.
Claims (3)
1, a kind of isolation switch contact contact pressure measurement mechanism, comprise digital display controller (5), simulation static contact, it is characterized in that, the main body of this simulation static contact is metal bar (1), the two ends symmetry of this metal bar (1) has two measured holes (2), the center pit quadrature of this measured hole (2) and this metal bar (1) is provided with resistance strain gage (4) in the measured hole (2), described resistance strain gage (4) is electrically connected with digital display controller (5).
2, a kind of isolation switch contact contact pressure measurement mechanism according to claim 1, it is characterized in that, have strain on the metal bar of this simulation static contact (1) and strengthen groove (3), this strain strengthens groove (3) and symmetrical distribution parallel with the center line of corresponding measured hole (2).
3, a kind of isolation switch contact contact pressure measurement mechanism according to claim 1 and 2 is characterized in that, this simulation static contact adopts 50 chrome alum elastic alloy materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201264553U CN201122116Y (en) | 2007-11-21 | 2007-11-21 | Measuring apparatus for contact pressure of isolating switch contact head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201264553U CN201122116Y (en) | 2007-11-21 | 2007-11-21 | Measuring apparatus for contact pressure of isolating switch contact head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201122116Y true CN201122116Y (en) | 2008-09-24 |
Family
ID=40009348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201264553U Expired - Lifetime CN201122116Y (en) | 2007-11-21 | 2007-11-21 | Measuring apparatus for contact pressure of isolating switch contact head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201122116Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128695A (en) * | 2011-01-24 | 2011-07-20 | 广州森纳士仪器有限公司 | Contact pressure measuring instrument for high-power electric appliance main loop connector |
| CN105067174A (en) * | 2015-07-29 | 2015-11-18 | 宁波耀华电气科技有限责任公司 | Isolation switch contact pressure measuring device |
| CN110567618A (en) * | 2019-07-29 | 2019-12-13 | 深圳供电局有限公司 | Contact engagement force detection device and platform |
| CN117929990A (en) * | 2024-03-22 | 2024-04-26 | 辽宁合顺电力技术有限公司 | High-voltage switch contact state detection device |
-
2007
- 2007-11-21 CN CNU2007201264553U patent/CN201122116Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128695A (en) * | 2011-01-24 | 2011-07-20 | 广州森纳士仪器有限公司 | Contact pressure measuring instrument for high-power electric appliance main loop connector |
| CN102128695B (en) * | 2011-01-24 | 2016-01-27 | 广州森纳士仪器有限公司 | Contact pressure measuring instrument for high-power electric appliance main loop connector |
| CN105067174A (en) * | 2015-07-29 | 2015-11-18 | 宁波耀华电气科技有限责任公司 | Isolation switch contact pressure measuring device |
| CN105067174B (en) * | 2015-07-29 | 2018-10-12 | 宁波耀华电气科技有限责任公司 | Isolation switch contact device for pressure measurement |
| CN110567618A (en) * | 2019-07-29 | 2019-12-13 | 深圳供电局有限公司 | Contact engagement force detection device and platform |
| CN110567618B (en) * | 2019-07-29 | 2021-08-24 | 深圳供电局有限公司 | Contact engagement force detection device and platform |
| CN117929990A (en) * | 2024-03-22 | 2024-04-26 | 辽宁合顺电力技术有限公司 | High-voltage switch contact state detection device |
| CN117929990B (en) * | 2024-03-22 | 2024-05-28 | 辽宁合顺电力技术有限公司 | High-voltage switch contact state detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WEST CHINA ELECTRIC POWER CO. Free format text: FORMER OWNER: XI AN ELECTRIC MANUFACTURING CORP. Effective date: 20080905 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080905 Address after: Shaanxi province Xi'an City West High Tang Hing Road No. 7, zip code: 710075 Patentee after: China XD Electronic Corporation Address before: Shaanxi province Xi'an Fengdeng road 29, zip code: 710077 Patentee before: Xi'an Electric Manufacturing Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080924 |