CN204731335U - A kind of paper oil insulation test product voltage ageing device - Google Patents
A kind of paper oil insulation test product voltage ageing device Download PDFInfo
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- CN204731335U CN204731335U CN201520367907.1U CN201520367907U CN204731335U CN 204731335 U CN204731335 U CN 204731335U CN 201520367907 U CN201520367907 U CN 201520367907U CN 204731335 U CN204731335 U CN 204731335U
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- bottom electrode
- expansion link
- fixed head
- test product
- insulation test
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Abstract
The utility model discloses a kind of paper oil insulation test product voltage ageing device, comprise the epoxy resin board and fixed head that be arranged in parallel, top electrode and bottom electrode is provided with between epoxy resin board and fixed head, the end face of top electrode is connected with the center of epoxy resin board by the pole axis that powers on, the bottom surface of bottom electrode is connected with one end of bottom electrode axle, the through hole that the other end of bottom electrode axle is offered through fixed head center also extends to the bottom of fixed head, one end of retractable lever and the elongated end of bottom electrode axle hinged, its other end is free end, and the maximum length of retractable lever is greater than the length of its pin joint to fixed head edge, spring housing is contained on the bottom electrode axle between bottom electrode and fixed head, during use, paper oil insulation test product is arranged between the upper and lower electrodes, and passes through spring clamp.The utility model has the following advantages: more laborsaving during sandwiched test product, can one man operation; Lever construction adopts scalable plate-shaped design not take redundant space.
Description
Technical field:
The utility model relates to a kind of paper oil insulation test product measurement mechanism, particularly relates to a kind of paper oil insulation test product voltage ageing device.
Background technology:
In high voltage electric power equip ment operational process, the electric stress moment that paper oil insulation material bears exists and cannot avoid, and causes self insulation and mechanical property to decline gradually, and may cause transformer fault.The safety and stability of the operational reliability direct relation electric system of especially large oil immersed power transformer, data display according to statistics, the interruption of service of transformer causes primarily of its insulation system fault, and therefore the operation life of transformer depends on the ageing state of Oil-Paper Insulation to a great extent.Therefore, Research on Oil paper insulation voltage ageing characteristic, to Fault Diagnosis Method of Power Transformer and prediction transformer life most important, provide necessary experimental basis and theory support to the insulating Design of experimental transformer, operation maintenance.
At present, in long-term voltage ageing experiment, for ensureing that test product contacts with electrode seal, avoiding gap to exist, all adopting the spring of larger pressure to make it compress.But due to spring action, need two people to operate in operating process, a people pulls open spring, and test product is placed in the middle of two electrodes by another people simultaneously.And spring pressure is comparatively large, need be pulled open by spring under most cases by instrument.Not only take too much human resources, reduce work efficiency, even experiment operator is damaged.This design is not only not easy to operation, pole is not rigorous, and causes the wasting of resources.
Utility model content:
The purpose of this utility model is to provide a kind of paper oil insulation test product voltage ageing device, and its rapid operation is quick, can one man operation, to overcome the deficiencies in the prior art.
For realizing above object, the utility model takes following technical scheme:
A kind of paper oil insulation test product voltage ageing device, comprise the epoxy resin board and fixed head that be arranged in parallel, top electrode and bottom electrode is provided with between epoxy resin board and fixed head, the end face of top electrode is connected with the center of epoxy resin board by the pole axis that powers on, the bottom surface of bottom electrode is connected with one end of bottom electrode axle, the through hole that the other end of bottom electrode axle is offered through fixed head center also extends to the bottom of fixed head, one end of retractable lever and the elongated end of bottom electrode axle hinged, its other end is free end, and the maximum length of retractable lever is greater than the length of its pin joint to fixed head edge, spring housing is contained on the bottom electrode axle between bottom electrode and fixed head, during use, paper oil insulation test product is arranged between the upper and lower electrodes, and passes through spring clamp.
The utility model further improves and is: also comprise two conducting rods being symmetricly set on power on pole axis and the bottom electrode axle left and right sides, the two ends of each conducting rod are connected with fixed head with epoxy resin board respectively.
The utility model further improves and is: also comprise the sealant be arranged on epoxy resin board bottom surface.
The utility model further improves and is: one end of retractable lever is hinged by the elongated end of screw and bottom electrode axle.
The utility model further improves and is: retractable lever comprises the first expansion link and the second expansion link, wherein, the external diameter of the first expansion link is greater than the external diameter of the second expansion link, the center of the first expansion link offers the center pit of one end open, first expansion link relative to one end of openend and the elongated end of bottom electrode axle hinged, one end of second expansion link is sleeved in the center pit of the first expansion link, and can stretch along the center pit of the first expansion link, and the other end of the second expansion link is free end.
The utility model further improves and is: the length of the first expansion link is less than the length of its pin joint to fixed head edge.
The utility model further improves and is: the length of the first expansion link is not more than the bottom electrode shaft length of below its pin joint.
The utility model further improves and is: the xsect of bottom electrode axle and the first expansion link hinged place is flat, and the xsect of remainder is circular.
Compared with prior art, the utility model uses lever construction, more laborsaving when making sandwiched paper oil insulation test product, can one man operation.
Further, the part lower than bottom electrode axle screwing makes flat, is easy to be connected with retractable lever, and is easy to operation; By the second expansion link pull-out when retractable lever uses, regained when not using among the first expansion link, and the first length of telescopic bar is not more than the bottom electrode shaft length of below screw, to ensure not take redundant space.
To sum up, the utility model has the following advantages: more laborsaving during sandwiched test product, can one man operation; Lever construction adopts retractable lever not take redundant space.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Embodiment:
Below in conjunction with the drawings and specific embodiments, content of the present utility model is described in further details.
As shown in Figure 1, a kind of paper oil insulation test product of the utility model voltage ageing device, comprise the epoxy resin board 1 and fixed head 8 that be arranged in parallel, top electrode 3 and bottom electrode 5 is provided with between epoxy resin board 1 and fixed head 8, the end face of top electrode 3 is connected with the center of epoxy resin board 1 by the pole axis 14 that powers on, the bottom surface of bottom electrode 5 is connected with one end of bottom electrode axle 6, the through hole that the other end of bottom electrode axle 6 is offered through fixed head 8 center also extends to the bottom of fixed head 8, one end of retractable lever is hinged with the elongated end of bottom electrode axle 6 by screw 10, its other end is free end, and the maximum length of retractable lever is greater than the length of its pin joint to fixed head 8 edge, spring 7 is sleeved on the bottom electrode axle 6 between bottom electrode 5 and fixed head 8, during use, paper oil insulation test product 4 is arranged between top electrode 3 and bottom electrode 5, and is clamped by spring 7.
Further, also comprise two conducting rods 9 being symmetricly set on power on pole axis 14 and bottom electrode axle 6 left and right sides, the two ends of each conducting rod are connected with fixed head 8 with epoxy resin board 1 respectively.And also comprise the sealant 2 be arranged on epoxy resin board 1 bottom surface.
Further, retractable lever comprises the first expansion link 12 and the second expansion link 11, wherein, the external diameter of the first expansion link 12 is greater than the external diameter of the second expansion link 11, the center of the first expansion link 12 offers the center pit of one end open, first expansion link 12 relative to one end of openend and the elongated end of bottom electrode axle 6 hinged, one end of second expansion link 11 is sleeved in the center pit of the first expansion link 12, and can stretch along the center pit of the first expansion link 12, the other end of the second expansion link 11 is free end.Wherein, the length of the first expansion link 12 is less than the length of its pin joint to fixed head 8 edge.The xsect of bottom electrode axle 6 and the first expansion link 12 hinged place is flat, is easy to be connected with lever construction and is easy to operate; The xsect of remainder is circular, is beneficial to and slides in the central hole of fixed head 8.
When needing to place paper oil insulation test product 4, use retractable lever, upwards move in the second expansion link 11, retractable lever pulls bottom electrode axle 6 with fixed head 8 downwards for fulcrum, bottom electrode 5 is moved downward, retractable lever reduces the deformation power of spring 7, makes equipment more laborsaving, can one man operation; Second expansion link 11 pulls out when using by retractable lever, is regained when not using among the first expansion link 12; And the first expansion link 12 length is not more than bottom electrode axle 6 length of screw less than 10, does not take redundant space.
In order to further understand the utility model, now its operation steps is explained as follows:
1) paper oil insulation test product 4 is cut out according to requirement of experiment;
2) the second expansion link 11 of lever construction is pulled out, utilize fixed head 8 as fulcrum, upwards move the second expansion link 11, retractable lever with fixed head 8 for fulcrum pulls bottom electrode axle 6, reduce the deformation power of spring 7, and drive bottom electrode 5 to move downward, now paper oil insulation test product 4 is put into the space between top electrode 3 and bottom electrode 5;
3) unclamp the second expansion link 11, spring 7 recovers deformation, and paper oil insulation test product 4 steps up by bottom electrode 5 under the effect of spring 7;
4) the second expansion link 11 is recovered in the first expansion link 12, and rotates to the position parallel with bottom electrode axle 6, whole device is put into test chamber, start test.
Claims (8)
1. a paper oil insulation test product voltage ageing device, it is characterized in that: comprise the epoxy resin board (1) and fixed head (8) that be arranged in parallel, top electrode (3) and bottom electrode (5) is provided with between epoxy resin board (1) and fixed head (8), the end face of top electrode (3) is connected by the center of the pole axis that powers on (14) with epoxy resin board (1), the bottom surface of bottom electrode (5) is connected with one end of bottom electrode axle (6), the through hole that the other end of bottom electrode axle (6) is offered through fixed head (8) center also extends to the bottom of fixed head (8), one end of retractable lever and the elongated end of bottom electrode axle (6) hinged, its other end is free end, and the maximum length of retractable lever is greater than the length of its pin joint to fixed head (8) edge, spring (7) is sleeved on the bottom electrode axle (6) between bottom electrode (5) and fixed head (8), during use, paper oil insulation test product (4) is arranged between top electrode (3) and bottom electrode (5), and by spring (7) clamping.
2. paper oil insulation test product voltage ageing device according to claim 1, it is characterized in that: also comprise two conducting rods (9) being symmetricly set on the pole axis that powers on (14) and bottom electrode axle (6) left and right sides, the two ends of each conducting rod are connected with fixed head (8) with epoxy resin board (1) respectively.
3. paper oil insulation test product voltage ageing device according to claim 2, is characterized in that: also comprise the sealant (2) be arranged on epoxy resin board (1) bottom surface.
4. paper oil insulation test product voltage ageing device according to claim 1, is characterized in that: one end of retractable lever is hinged with the elongated end of bottom electrode axle (6) by screw (10).
5. paper oil insulation test product voltage ageing device according to any one of claim 1 to 4, it is characterized in that: retractable lever comprises the first expansion link (12) and the second expansion link (11), wherein, the external diameter of the first expansion link (12) is greater than the external diameter of the second expansion link (11), the center of the first expansion link (12) offers the center pit of one end open, first expansion link (12) relative to one end of openend and the elongated end of bottom electrode axle (6) hinged, one end of second expansion link (11) is sleeved in the center pit of the first expansion link (12), and can stretch along the center pit of the first expansion link (12), the other end of the second expansion link (11) is free end.
6. paper oil insulation test product voltage ageing device according to claim 5, is characterized in that: the length of the first expansion link (12) is less than the length of its pin joint to fixed head (8) edge.
7. paper oil insulation test product voltage ageing device according to claim 5, is characterized in that: the length of the first expansion link (12) is not more than bottom electrode axle (6) length of below its pin joint.
8. paper oil insulation test product voltage ageing device according to claim 5, is characterized in that: bottom electrode axle (6) is flat with the xsect of the first expansion link (12) hinged place, and the xsect of remainder is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520367907.1U CN204731335U (en) | 2015-06-01 | 2015-06-01 | A kind of paper oil insulation test product voltage ageing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520367907.1U CN204731335U (en) | 2015-06-01 | 2015-06-01 | A kind of paper oil insulation test product voltage ageing device |
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| Publication Number | Publication Date |
|---|---|
| CN204731335U true CN204731335U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520367907.1U Active CN204731335U (en) | 2015-06-01 | 2015-06-01 | A kind of paper oil insulation test product voltage ageing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501688A (en) * | 2016-10-20 | 2017-03-15 | 重庆大学 | A kind of meter and the plant paper oil insulation voltage ageing lifetime estimation method of temperature and the double parameters of moisture |
| CN107677907A (en) * | 2017-10-09 | 2018-02-09 | 三峡大学 | It is a kind of can fine adjustment transformer oil clearance experiment measurement apparatus |
-
2015
- 2015-06-01 CN CN201520367907.1U patent/CN204731335U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501688A (en) * | 2016-10-20 | 2017-03-15 | 重庆大学 | A kind of meter and the plant paper oil insulation voltage ageing lifetime estimation method of temperature and the double parameters of moisture |
| CN107677907A (en) * | 2017-10-09 | 2018-02-09 | 三峡大学 | It is a kind of can fine adjustment transformer oil clearance experiment measurement apparatus |
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