Insulating oil dielectric loss and volume resistivity tester

Abstract

The utility model relates to the technical field of insulating oil dielectric loss and volume resistivity testing, in particular to an insulating oil dielectric loss and volume resistivity tester, which comprises an insulating oil dielectric loss and volume resistivity tester body, and a square groove is arranged on the lateral side of the insulating oil dielectric loss and volume resistivity tester body. A supporting plate is arranged in the square groove, connecting shafts are arranged at the lower ends of the two sides of the supporting plate, the supporting plate can rotate with the axis of the connecting shafts as the center, and a baffle is arranged at the bottom of the square groove and located below the supporting plate. According to the insulating oil dielectric loss and volume resistivity tester, the storage problem during oil injection and cleaning of the oil cup is solved, the occupied space is small, and normal testing of the tester cannot be affected.

Description

Technical Field

[0001] This utility model relates to the field of insulating oil dielectric loss and volume resistivity testing technology, specifically to an insulating oil dielectric loss and volume resistivity tester. Background Technology

[0002] An insulating oil dielectric loss and volume resistivity tester is a specialized device used in power systems to accurately evaluate the performance of insulating oil. Its core function is to determine the insulating performance of the oil by measuring the dielectric loss tangent and volume resistivity. This instrument provides crucial data support for the diagnosis of the insulation status of power equipment by quantitatively evaluating the polarization loss and conductivity characteristics of the insulating oil. Existing insulating oil dielectric loss and volume resistivity testers, such as the utility model patent with application number 202420250379.0 entitled "An Oil Dielectric Loss and Resistivity Tester," disclose an instrument comprising: a test tank; a semi-top fixedly connected to the upper surface of the test tank; an oil dielectric measuring instrument fixedly connected to the upper surface of the semi-top; a filter box fixedly connected to the inner surface of the test tank; a filter membrane movably connected to the inner surface of the filter box; and a leakage port provided on the lower surface of the filter box. These components filter the oil about to enter the tank, making the oil purer and improving the accuracy of the test. Furthermore, heating and insulation maintain a constant temperature inside the tank, increasing the stability of the test.

[0003] However, the existing insulating oil dielectric loss and volume resistivity tester still has drawbacks in use. Before testing, the oil cup inside the tester needs to be removed from the oil cup slot, opened, and the insulating oil to be tested injected. After the test is completed, the oil cup needs to be rinsed with petroleum ether or other solvents. During the above operations, the oil cup is usually placed on top of the tester or on the operating table where the tester is located, which can easily cause oil cup contamination and affect the service life of the equipment. Utility Model Content

[0004] To address the aforementioned problems, the main objective of this invention is to provide an insulating oil dielectric loss and volume resistivity tester that solves the storage issues during oil filling and cleaning of the oil cup, occupies less space, and does not affect the normal testing of the instrument.

[0005] To achieve the above objectives, this utility model provides an insulating oil dielectric loss and volume resistivity tester, including an insulating oil dielectric loss and volume resistivity tester body. A square groove is provided on the side of the insulating oil dielectric loss and volume resistivity tester body, and a support plate is provided in the square groove. A connecting shaft is provided at the lower ends of both sides of the support plate. The support plate can rotate around the axis of the connecting shaft. A baffle is provided at the bottom of the square groove and below the support plate.

[0006] Preferably, the insulating oil dielectric loss and volume resistivity tester body is provided with a detection chamber, the detection chamber is provided with an oil cup groove, and the oil cup groove is provided with an oil cup container.

[0007] Preferably, the upper end of the support plate is provided with a locking component, which includes a first groove, a second groove, a rotating shaft, and a protrusion.

[0008] Preferably, the first groove is located above the square groove, the second groove is located at the upper edge of the support plate, the inner end of the rotating shaft is rotatably disposed on the inner side of the square groove and located between the first groove and the second groove, and the outer end of the rotating shaft is fixedly connected to the protrusion.

[0009] Preferably, the baffle is provided with positioning plates on both sides, with positioning holes on the positioning plates and bolts in the positioning holes, and the baffle is fixed to the bottom of the square groove by bolts.

[0010] Preferably, the support plate is provided with a first strip groove, and the main body of the insulating oil dielectric loss and volume resistivity tester is provided with a second strip groove below the square groove, and the first strip groove and the second strip groove are located on the same plane.

[0011] Preferably, it also includes a support bar, with rotating blocks on both sides of the upper end of the support bar. The rotating blocks are fixed in the first strip groove, and the upper end of the support bar rotates around the connecting line of the two rotating blocks.

[0012] Preferably, sliders are provided on both sides of the lower end of the support bar, and the sliders are slidably located in the second strip groove.

[0013] The beneficial effects of this utility model through the above technical solution include: the main body of the insulating oil dielectric loss and volume resistivity tester of this utility model is provided with a square groove and a support plate. When in use, the support plate can form a plane for placing the oil cup container, and when not in use, it can be directly fastened to the side of the main body, which is not easy to cause pollution. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the insulating oil dielectric loss and volume resistivity tester of this utility model.

[0016] Figure 2 This is the utility model Figure 1 Enlarged view of part A in the middle.

[0017] Figure 3 This is a partial enlarged view of the structure of this utility model in use.

[0018] Figure 4 This is an enlarged view of a portion of the structure of this utility model in its usage state from another angle.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Main body of insulating oil dielectric loss and volume resistivity tester; 11. Second strip groove; 2. Square groove; 3. Support plate; 31. First strip groove; 4. Connecting shaft; 5. Baffle; 51. Positioning plate; 61. First groove; 62. Second groove; 63. Rotating shaft; 64. Protruding strip; 7. Support strip. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] like Figures 1 to 4 As shown, this utility model provides an insulating oil dielectric loss and volume resistivity tester, which includes an insulating oil dielectric loss and volume resistivity tester body 1. A square groove 2 is provided on the side of the insulating oil dielectric loss and volume resistivity tester, and a support plate 3 is provided in the square groove 2. Connecting shafts 4 are provided at the lower ends of both sides of the support plate 3. The support plate 3 is rotatable about the axis of the connecting shafts 4. A baffle 5 is provided at the bottom of the square groove 2 and below the support plate 3. Positioning plates 51 are provided on both sides of the baffle 5. Positioning holes are provided on the positioning plates 51, and bolts are provided in the positioning holes. The baffle 5 is fixed to the bottom of the square groove 2 by bolts. When the support plate 3 rotates about the connecting shafts 4 until the support plate 3 is close to perpendicular to the side of the insulating oil dielectric loss and volume resistivity tester body 1, the baffle 5 abuts against the bottom surface of the support plate 3, which can prevent the support plate 3 from moving downward. At this time, the support plate 3 stably forms a plane.

[0023] Furthermore, the support plate 3 of the present invention is provided with a first strip groove 31, and the main body 1 of the insulating oil dielectric loss and volume resistivity tester is provided with a second strip groove 11 located below the square groove 2. The first strip groove 31 and the second strip groove 11 are on the same plane regardless of their state. When the support plate 3 is in contact with the inner side of the square groove 2, the first strip groove 31 and the second strip groove 11 are located on the same straight line. In addition, the structure of the present invention also includes a support bar 7. The upper end of the support bar 7 is provided with rotating blocks (not shown in the figure) on both sides. The rotating blocks are fixed in the first strip groove 31. The upper end of the support bar 7 rotates around the connecting line of the two rotating blocks. In other words, although the rotating blocks are fixed in the first strip groove 31, the support bar 7 can rotate around the rotating blocks. The lower end of the support bar 7 is provided with sliders (not shown in the figure) on both sides. The sliders are slidably located in the second strip groove 11. The support bar 7 can also rotate around the connecting line of the two sliders. The difference between the sliders and the rotating blocks is that the position of the sliders is not fixed. They are located in the second strip groove 11 and can be displaced.

[0024] As the support plate 3 flips to a flat surface around the connecting shaft 4, the upper end of the support bar 7 rotates around the rotating block, causing a change in the angle between the support bar 7 and the support plate 3. Simultaneously, the slider in the second groove 11 moves downwards until it reaches the bottom of the second groove 11, ultimately... Figure 4 As shown, the support bar 7 is stably supported below the support plate 3. The support bar 7 also provides a stable supporting force for the support plate 3. When working together with the baffle 5, it can strengthen the supporting force of the support plate 3.

[0025] The insulating oil dielectric loss and volume resistivity tester body 1 of this invention has a detection chamber inside, which contains an oil cup groove, and the oil cup groove contains an oil cup container. Since the internal structure of the insulating oil dielectric loss and volume resistivity tester body 1 is common knowledge, it is not shown in the figures. During use, the oil cup container needs to be removed from the oil cup groove, then the locking nut on the oil cup container needs to be unscrewed, the upper cover of the oil cup container needs to be removed, and then the insulating oil liquid to be tested needs to be poured into the lower cup structure of the oil cup container. The upper cover then needs to be fastened again, secured with the locking nut, and finally the entire oil cup container is placed back into the oil cup groove. As is well known... The test chamber of the tester is also equipped with test leads such as temperature connection lines and current connection lines. Therefore, during the disassembly, oil filling and installation of the oil cup container, some structures are not suitable to be placed in the test chamber. If they are placed on the operating plane of the tester, they may be damaged or contaminated. Moreover, the oil cup container needs to be wiped or rinsed after each measurement, which will lead to secondary pollution. Therefore, during the use of the tester of the present invention, the oil cup container can be placed directly on the flat support plate 3. When not in use, the support plate 3 can be fastened in the square groove 2, which will not cause the oil cup container to be contaminated. In addition, the support plate 3 is closer to the main body 1 of the insulating oil dielectric loss and volume resistivity tester, making the operation more convenient.

[0026] Additionally, it should be noted that the upper end of the support plate 3 of the present invention is provided with a locking member, which includes a first groove 61, a second groove 62, a rotating shaft 63, and a protrusion 64. The first groove 61 is located above the square groove 2 and is set on the side of the body 1 of the insulating oil dielectric loss and volume resistivity tester. The second groove 62 is located at the upper edge of the support plate 3. The inner end of the rotating shaft 63 is rotatably set on the inner side of the square groove 2, and the rotating shaft 63 is rotatably located between the first groove 61 and the second groove 62. The outer end of the rotating shaft 63 is fixedly connected to the protrusion 64. When the support plate 3 is not needed, the support plate 3 can be folded into the square groove 2, and then the protrusion 64 can be rotated to lock the support plate 3 and prevent it from falling off.

[0027] Through the above technical solution, the beneficial effects of this utility model include: the main body of the insulating oil dielectric loss and volume resistivity tester of this utility model is provided with a square groove 2 and a support plate 3. When in use, the support plate 3 can form a plane for placing the oil cup container, and when not in use, it can be directly fastened to the side of the main body, which is not easy to cause pollution.

[0028] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. An instrument for testing the dielectric loss and volume resistivity of insulating oil, characterized in that, The instrument includes an insulating oil dielectric loss and volume resistivity tester body (1). The insulating oil dielectric loss and volume resistivity tester body (1) has a square groove (2) on its side. A support plate (3) is provided in the square groove (2). A connecting shaft (4) is provided at the lower ends of both sides of the support plate (3). The support plate (3) can rotate around the axis of the connecting shaft (4). A baffle (5) is provided at the bottom of the square groove (2) and below the support plate (3).

2. The insulating oil dielectric loss and volume resistivity tester according to claim 1, characterized in that, The main body (1) of the insulating oil dielectric loss and volume resistivity tester is provided with a detection chamber, the detection chamber is provided with an oil cup groove, and the oil cup groove is provided with an oil cup container.

3. The insulating oil dielectric loss and volume resistivity tester according to claim 1, characterized in that, The upper end of the support plate (3) is provided with a locking component, which includes a first groove (61), a second groove (62), a rotating shaft (63), and a protrusion (64).

4. The insulating oil dielectric loss and volume resistivity tester according to claim 3, characterized in that, The first groove (61) is located above the square groove (2), the second groove (62) is located at the upper edge of the support plate (3), the inner end of the rotating shaft (63) is rotatably disposed on the inner side of the square groove (2) and located between the first groove (61) and the second groove (62), and the outer end of the rotating shaft (63) is fixedly connected to the protrusion (64).

5. The insulating oil dielectric loss and volume resistivity tester according to claim 1, characterized in that, The baffle (5) has positioning plates (51) on both sides. The positioning plates (51) have positioning holes and bolts in the positioning holes. The baffle (5) is fixed to the bottom of the square groove (2) by the bolts.

6. The insulating oil dielectric loss and volume resistivity tester according to claim 1, characterized in that, The support plate (3) is provided with a first strip groove (31), and the main body (1) of the insulating oil dielectric loss and volume resistivity tester is provided with a second strip groove (11) located below the square groove (2). The first strip groove (31) and the second strip groove (11) are located on the same plane.

7. The insulating oil dielectric loss and volume resistivity tester according to claim 6, characterized in that, It also includes a support bar (7), with rotating blocks on both sides of the upper end of the support bar (7). The rotating blocks are fixed in the first strip groove (31), and the upper end of the support bar (7) rotates around the connecting line of the two rotating blocks.

8. The insulating oil dielectric loss and volume resistivity tester according to claim 7, characterized in that, The lower end of the support bar (7) is provided with sliders on both sides, and the sliders are slidably located in the second strip groove (11).

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