CN212410761U - Integrated testing arrangement of insulating material electrical strength and breakdown thickness - Google Patents
Integrated testing arrangement of insulating material electrical strength and breakdown thickness Download PDFInfo
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- CN212410761U CN212410761U CN202020552178.8U CN202020552178U CN212410761U CN 212410761 U CN212410761 U CN 212410761U CN 202020552178 U CN202020552178 U CN 202020552178U CN 212410761 U CN212410761 U CN 212410761U
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Abstract
The utility model discloses an insulating material electrical strength and puncture thickness integrated test device, two bottom plates including upper and lower parallel arrangement, support through the support column between two bottom plates, bottom plate central point that is located below puts the department and is provided with measuring electrode, measuring electrode bottom is connected with the measuring electrode earthing terminal, the measuring electrode earthing terminal is fixed in the bottom plate center, the measuring electrode top is provided with high-voltage electrode, be used for placing the volume of awaiting measuring insulating material between measuring electrode and the high-voltage electrode, high-voltage electrode passes through the spring and is connected with the hollow cylinder that is located the top, the vertical bottom plate setting that runs through above being located of hollow cylinder, the one end that the bottom plate upper surface was worn out to hollow cylinder is connected with thickness metering device, measuring electrode, high-voltage electrode, a spring, hollow cylinder's. The utility model discloses measurement insulating material's that can be convenient breakdown voltage, corresponding thickness that simultaneously can direct observation insulating material very conveniently calculates insulating material's electrical strength.
Description
Technical Field
The utility model belongs to the technical field of insulating material detection device, concretely relates to insulating material electrical strength and puncture thickness integrated test device.
Background
In the industrial field, the safety of electrical equipment is an important step in industrial production, and especially in high-voltage equipment, the insulating property is important for ensuring the safe operation of the high-voltage equipment. Therefore, the industry needs to test the electrical strength of the insulation material on the high voltage equipment under the power frequency voltage. For example, when measuring the electrical strength of a certain insulating film material, it is necessary to measure the breakdown voltage and the thickness of the corresponding film at the same time, and since separate measurements on different devices may cause inaccuracy in the electrical strength data, the thickness must be measured exactly according to the breakdown voltage.
The method for measuring the electrical strength of the insulating material is mainly based on GB/T1408.1-2016 insulating material electrical strength test method. The device comprises two metal cylinder electrodes about, and its cylinder is processed into semicircle limit with insulating material contact surface edges and corners, and the purpose is for the electric field between the electrode is nearly even. A thickness meter is arranged above the device, the thickness of the insulating material can be directly observed, and the precision can reach 0.01 mm. Wherein two electrodes are positioned on the central line, and the insulation material for measurement is placed between the two electrodes. The device can be used under a plurality of complex environmental conditions, such as high-temperature environment and electrical performance test of the insulating material in transformer oil, and the device can still maintain good stability and accuracy under the conditions through a plurality of tests.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an insulating material electrical strength and the integrated testing arrangement of breakdown thickness, measurement insulating material's that can be convenient breakdown voltage, corresponding thickness that simultaneously can direct observation insulating material, very convenient calculation insulating material's electrical strength.
The utility model provides an adopted technical scheme is, an insulating material electrical strength and puncture thickness integrated test device, two bottom plates including upper and lower parallel arrangement, support through the support column between two bottom plates, bottom plate central point department of putting below being located is provided with measuring electrode, measuring electrode bottom is connected with measuring electrode earthing terminal, measuring electrode earthing terminal is fixed in the bottom plate center, the measuring electrode top is provided with high-voltage electrode, be used for placing the volume of awaiting measuring insulating material between measuring electrode and the high-voltage electrode, high-voltage electrode passes through the spring and is connected with the hollow cylinder that is located the top, the vertical bottom plate setting that runs through above being located of hollow cylinder, the one end that the bottom plate upper surface was worn out to hollow cylinder is connected with thickness metering device, measuring electrode, high-voltage electrode, a spring, hollow cylinder's center is located.
The utility model is also characterized in that,
the thickness metering device has the specific structure that: including set up in fixed disk on the hollow cylinder up end is provided with the thickness gauge on the fixed disk upper surface, is connected through the thickness gauge bracing piece of vertical setting between thickness gauge and the fixed disk, and fixed disk central point puts still vertical spring extension rod that is provided with, and spring extension rod wherein one end is connected with high-voltage electrode after passing hollow cylinder, spring in proper order, and the spring extension rod other end is connected with displacement measurement pole's one end, displacement measurement pole's the other end with the thickness gauge is connected, and fixed disk, thickness gauge, displacement measurement pole center are located same vertical line.
And a high-voltage electrode joint is also arranged between the spring extension rod and the displacement measuring rod.
The high-voltage electrode connector is of a stainless steel disc structure, the diameter of the high-voltage electrode connector is 35mm, the high-voltage electrode connector is tightly locked on the spring extension rod through two stainless steel nuts, and a high-voltage cable connector is arranged on the high-voltage electrode connector and used for connecting a high-voltage cable.
The number of the support columns is four, and the support columns are respectively arranged at four corner positions of the two bottom plates.
The beneficial effects of the utility model are that, an insulating material electrical strength and puncture thickness integrated test device, first, can satisfy the electrical strength who measures various types of insulating material, small in size can conveniently put into under all kinds of experimental environment and measure with in the transformer oil etc. moreover. Secondly, the thickness meter is installed on this device top, both can measure insulating material thickness alone, and the precision reaches 0.01mm, can measure insulating material's breakdown voltage value alone again. Third, this device thickness meter and electrode are in concentric position, and the accurate insulation thickness who measures certain insulating material's breakdown voltage correspondence like this calculates this insulating material's electrical strength accurately, has fine experimental accuracy.
Drawings
Fig. 1 is a front view structural diagram of an integrated testing device for electrical strength and breakdown thickness of an insulating material of the present invention;
fig. 2 is a schematic top view of the structure of fig. 1.
In the figure, 1, a thickness gauge, 2, a displacement measuring rod, 3, a spring extension rod, 4, a thickness gauge support rod, 5, a fixed disc, 6, a high-voltage electrode joint, 7, a bottom plate, 8, a support column, 9, a hollow cylinder, 10, a spring, 11, a high-voltage electrode, 12, a measuring electrode grounding end, 13, a measuring electrode and 14 are made of insulating materials.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to an integrated testing device of electrical strength and breakdown thickness of insulating material, the structure is shown in figure 1, comprising two bottom plates 7 which are arranged in parallel up and down, the two bottom plates 7 are supported by a support column 8, a measuring electrode 13 is arranged at the central position of the bottom plate 7 which is positioned below, the bottom of the measuring electrode 13 is connected with a measuring electrode grounding end 12, the measuring electrode grounding end 12 is fixed at the center of the bottom plate 7, a high voltage electrode 11 is arranged at the top of the measuring electrode 13, an insulating material 14 to be measured is placed between the measuring electrode 13 and the high voltage electrode 11, the high voltage electrode 11 is connected with a hollow cylinder 9 which is positioned at the top by a spring 10, the hollow cylinder 9 vertically penetrates through the bottom plate 7 which is positioned above, one end of the hollow cylinder 9 which penetrates out the upper surface of the, the centers of the spring 10 and the hollow cylinder 9 are positioned on the same vertical line.
The thickness metering device has the specific structure that: including set up in fixed disk 5 on the hollow cylinder 9 up end, be provided with thickness meter 1 on the fixed disk 5 upper surface, be connected through the thickness meter bracing piece 4 of vertical setting between thickness meter 1 and the fixed disk 5, 5 central points of fixed disk put still vertical spring extension rod 3 that is provided with, spring extension rod 3 wherein one end is connected with high voltage electrode 11 after passing hollow cylinder 9, spring 10 in proper order, and the spring extension rod 3 other end is connected with displacement measurement pole 2's one end, displacement measurement pole 2's the other end with thickness meter 1 is connected, and fixed disk 5, thickness meter 1, displacement measurement pole 2 center are located same vertical line.
A high-voltage electrode joint 6 is also arranged between the spring extension rod 3 and the displacement measuring rod 2.
The high-voltage electrode connector 6 is of a stainless steel disc structure, the diameter of the high-voltage electrode connector is 35mm, the high-voltage electrode connector 6 is locked on the spring extension rod 3 through two stainless steel nuts, and a high-voltage cable connector is arranged on the high-voltage electrode connector 6 and used for connecting a high-voltage cable.
As shown in fig. 2, the number of the support columns 8 is four, and the support columns are respectively arranged at four corner positions of the two bottom plates 7.
The utility model relates to an among insulating material electrical strength and the integrated testing arrangement of puncture thickness, all be in concentric position between thickness gauge 1, spring extension rod 3, fixed disk 5, upper and lower bottom plate 7, hollow cylinder 9, spring 10, high tension electrode 11, measuring electrode earthing terminal 12, the measuring electrode 13. The thickness gauge displacement rod 2, the spring extension rod 3, the thickness gauge support rod 4, the fixed disk 5, the high-voltage electrode joint 6, the hollow cylinder 9, the spring 10, the high-voltage electrode 11, the measuring electrode grounding end 12 and the measuring electrode 13 are all made of stainless steel materials. The upper bottom plate 7, the lower bottom plate 7 and the supporting rods 8 are made of epoxy resin materials with high volume resistivity, stable chemical properties and high temperature resistance. The contact round surfaces of the high-voltage electrode 11 and the measuring electrode 13 and the insulating material are processed into chamfers, so that the surface electric field applied to the insulating material is as uniform as possible. The high-voltage electrode 11 and the measuring electrode 13 are connected by bolts and fixed on the lower bottom plate 7, and are mainly used for connecting the whole device with a grounding end.
The utility model relates to an insulating material electrical strength and the integrated testing arrangement of puncture thickness, thickness meter 1 is used for accurate measurement insulating material's thickness with straight line displacement volume conversion angle displacement volume. The thickness gauge displacement rod 2 is welded on the spring extension rod 3 and used for feeding back the linear displacement of the spring 10 to the thickness gauge 1. The spring extension rod 3 is a bolt, and is used for fixing the high-voltage electrode connector 6 and the only measuring rod of the welding thickness meter 1, and the spring extension rod 3 is mainly used for measuring the linear displacement of the spring. The thickness meter support rod 4 is welded on the fixed disk 5 and used for fixing the thickness meter 1 to ensure the accuracy of measurement. The fixed disc 5 is sleeved on the spring extension rod 3 and is placed on the hollow cylinder 9 to fix the thickness gauge supporting rod 4.
The utility model relates to an insulating material electrical strength and puncture thickness integrated test device, the theory of operation as follows:
the insulating material 14 is firstly placed between the high-voltage electrode 11 and the measuring electrode 13, the high-voltage cable is connected to the high-voltage electrode joint 6, and then the measuring electrode grounding end 12 is connected to the grounding wire of the high-voltage equipment. Secondly, the high-voltage device is opened and starts to be pressurized until the insulating material 14 breaks down, so that the breakdown voltage of the insulating material 14 is obtained, and meanwhile, the corresponding insulation thickness of the insulating material 14 of the thickness meter 1 can be read.
The utility model relates to an insulating material electrical strength and puncture thickness integrated test device, when actual design, thickness gauge 1 diameter is 60mm, on displacement measurement pole 2 is connected to thickness gauge 1 to by two thickness gauge bracing pieces 4 welding supports, by spring 10 feedback displacement volume, thickness gauge 1 is used for accurate measurement insulating material's thickness with straight line displacement volume conversion angle displacement volume. The measuring displacement rod 2 is used for accurately feeding back the linear displacement to the thickness gauge 1. The length of the spring extension rod 3 is 80mm, the spring extension rod 3 is an extension part of the spring 10, and the thickness of the insulating material is mainly fed back to the thickness gauge 1 through the linear displacement. The thickness meter support rods 4 are two, the length of each thickness meter support rod is 85mm, the thickness meter 1 is welded on the upper portion of each thickness meter support rod, and the fixing plate 5 is welded on the lower portion of each thickness meter support rod. The thickness gauge supporting rod 4 mainly fixes the thickness gauge 1, so that the inaccuracy of an experimental result caused by shaking in the measuring process is avoided. Fixed plate 5 is a thin stainless steel disc structure, and the diameter is 50mm, and fixed plate 5 installs on spring extension rod 3, and top welding thickness meter bracing piece 4, hollow cylinder 9 are hugged closely to the below, mainly are that the stabilization that provides safety and accuracy for thickness meter 1. The high voltage electrode connector 6 is a thin stainless steel disc structure with a diameter of 35mm, which is locked to the spring extension rod 3 by two stainless steel nuts. The upper disc is provided with a high-voltage cable connector, so that any high-voltage cable can be conveniently connected. The upper bottom plate 7 and the lower bottom plate 7 are square plates, the side length is 160mm, the thickness is 25mm, and the materials are made of epoxy resin which is high in volume resistivity, stable in chemical property and high-temperature resistant. The function of the device is to play a role of safety and stability with the supporting rod 8. The bracing piece 8 adopts 4 epoxy materials's cylinder to support, and length is 250mm, and the diameter is 2mm, and every post nut is fixed at upper and lower bottom plate 7, mainly plays the supporting role for whole device. The hollow cylinder 9 is made of stainless steel materials, the height is 40mm, the inner diameter is 15mm, the outer diameter is 25mm, the hollow cylinder 9 is installed in the center of the upper base plate 7, and the hollow cylinder is penetrated by the spring extension rod 3. The upper part of the spring 10 is welded on the displacement measuring rod 2, the middle part of the spring passes through the hollow cylinder 9, and the lower part of the spring is fixed in the high-voltage electrode 11. The spring 10 measures the thickness of the insulating material indirectly, mainly by the degree of compression of the spring. The high-voltage electrode 11 is made of stainless steel materials, the diameter of the bottom surface is 25mm, the height is 40mm, the upper part is connected with the spring 10 and the high-voltage electrode connector 6 thereof, and the lower part can be pressed with the insulating materials 14. The contact surface edge angle between the cylinder of the high-voltage electrode 11 and the insulating material is processed into a semicircular chamfer, so that the electric field between the electrodes is nearly uniform. The measurement electrode ground 12 is connected to the measurement electrode 13 through the lower plate 7, and the measurement electrode ground 12 can measure the breakdown voltage of the insulating material by being connected to a ground line. The measuring electrode 13 is made of stainless steel material, the diameter of the bottom surface is 25mm, the height is 40mm, the insulating material 14 is placed above the measuring electrode 13, and the lower part of the measuring electrode is connected with the grounding end 12 of the measuring electrode. The contact surface edge angle between the cylinder and the insulating material is processed into a semicircular chamfer, so that the electric field between the electrodes is almost uniform.
Claims (5)
1. An integrated testing device for electrical strength and breakdown thickness of an insulating material is characterized by comprising two bottom plates (7) which are arranged in parallel from top to bottom, wherein the two bottom plates (7) are supported by a support column (8), a measuring electrode (13) is arranged at the central position of the bottom plate (7) below, the bottom of the measuring electrode (13) is connected with a measuring electrode grounding end (12), the measuring electrode grounding end (12) is fixed at the center of the bottom plate (7), a high-voltage electrode (11) is arranged at the top of the measuring electrode (13), an insulating material (14) to be measured is placed between the measuring electrode (13) and the high-voltage electrode (11), the high-voltage electrode (11) is connected with a hollow cylinder (9) at the top through a spring (10), the hollow cylinder (9) vertically penetrates through the bottom plate (7) above, one end, penetrating through the upper surface of the bottom plate (7), of the hollow cylinder (9, the centers of the measuring electrode (13), the high-voltage electrode (11), the spring (10) and the hollow cylinder (9) are positioned on the same vertical line.
2. The integrated testing device for the electrical strength and the breakdown thickness of the insulating material according to claim 1, wherein the thickness metering device has the specific structure that: including set up in fixed disk (5) on hollow cylinder (9) up end, be provided with thickness meter (1) on fixed disk (5) upper surface, be connected through thickness meter bracing piece (4) of vertical setting between thickness meter (1) and fixed disk (5), fixed disk (5) central point puts still vertical spring extension rod (3) that is provided with, spring extension rod (3) wherein one end pass behind hollow cylinder (9), spring (10) in proper order with high voltage electrode (11) are connected, and the spring extension rod (3) other end is connected with the one end of displacement measuring stick (2), the other end of displacement measuring stick (2) with thickness meter (1) is connected, fixed disk (5), thickness meter (1), displacement measuring stick (2) center are located same vertical line.
3. The integrated testing device for electrical strength and breakdown thickness of the insulating material according to claim 2, wherein a high voltage electrode joint (6) is further arranged between the spring extension rod (3) and the displacement measuring rod (2).
4. The integrated testing device for electrical strength and breakdown thickness of the insulating material according to claim 3, wherein the high voltage electrode connector (6) is of a stainless steel disc structure with a diameter of 35mm, the high voltage electrode connector (6) is locked on the spring extension rod (3) by two stainless steel nuts, and a high voltage cable connector is arranged on the high voltage electrode connector (6) and used for connecting a high voltage cable.
5. The integrated testing device for electrical strength and breakdown thickness of insulating material according to claim 1, wherein the number of the supporting columns (8) is four, and the four supporting columns are respectively arranged at four corner positions of the two bottom plates (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020552178.8U CN212410761U (en) | 2020-04-14 | 2020-04-14 | Integrated testing arrangement of insulating material electrical strength and breakdown thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020552178.8U CN212410761U (en) | 2020-04-14 | 2020-04-14 | Integrated testing arrangement of insulating material electrical strength and breakdown thickness |
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| Publication Number | Publication Date |
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| CN212410761U true CN212410761U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020552178.8U Expired - Fee Related CN212410761U (en) | 2020-04-14 | 2020-04-14 | Integrated testing arrangement of insulating material electrical strength and breakdown thickness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791316A (en) * | 2021-08-05 | 2021-12-14 | 北京大学（天津滨海）新一代信息技术研究院 | High voltage breakdown measuring device |
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2020
- 2020-04-14 CN CN202020552178.8U patent/CN212410761U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791316A (en) * | 2021-08-05 | 2021-12-14 | 北京大学（天津滨海）新一代信息技术研究院 | High voltage breakdown measuring device |
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Granted publication date: 20210126 |