Limit operating temperature error testing device for high-voltage current transformer

Abstract

A high-voltage current transformer limit working temperature error testing device disclosed by the present invention comprises a driving base and testing mechanisms, the testing mechanisms are arranged on the upper surface of the driving base, two groups of heat dissipation boxes are arranged between the testing mechanisms, and placing assemblies are detachably installed at the two ends of the upper part of the driving base. The placing assemblies are used for placing a high-voltage current transformer, a heat dissipation path is formed on the periphery of the upper surface of the driving base, and the two placing assemblies are symmetrically arranged on the heat dissipation path; and the multiple sets of isolation assemblies and the multiple sets of conveying pipes are arranged on the heat dissipation path at equal intervals, and the isolation assemblies are arranged in the heat dissipation box. The device has the advantages that the high-voltage current transformer which is just tested is moved into the multiple groups of heat dissipation cavities, heat dissipation is carried out on the high-voltage current transformer, and therefore slow heat dissipation is carried out on the high-voltage current transformer which is just tested at the limiting temperature, and the situation of damage is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of testing devices, and in particular relates to a device for testing the limit operating temperature error of a high-voltage current transformer. Background Art

[0002] The principle of high-voltage current transformer is based on the principle of electromagnetic induction. The current transformer is composed of a closed iron core and a winding. Its primary winding has very few turns and is connected in series in the circuit of the current to be measured. Therefore, it often has the entire current of the circuit flowing through it. The secondary winding has more turns and is connected in series in the measuring instrument and the protection circuit. When the current transformer is working, its secondary circuit is always closed. Therefore, the impedance of the series coil of the measuring instrument and the protection circuit is very small, and the working state of the current transformer is close to a short circuit. It has been widely used in circuits.

[0003] However, there are some problems with the existing technology: due to the widespread use of high-voltage current transformers, in order to ensure that they can be used normally in some extreme environments, test production will be used after the production process to simulate extreme environments to test whether the working limit of the high-voltage current transformer is different from the planned data before production, so as to prevent accidents during future use. However, the existing test device generally heats up or cools down a confined space, and then puts the high-voltage current transformer into the confined space for testing. However, the existing test device generally takes out the completed high-voltage current transformer, resulting in a large temperature drop of the high-voltage current transformer, causing damage to the high-voltage current transformer and resulting in a waste of resources. Therefore, we propose a high-voltage current transformer limit operating temperature error test device. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a high-voltage current transformer extreme operating temperature error testing device, which includes two groups of temperature elimination boxes and multiple groups of isolation components. The interior of the temperature elimination boxes is divided into multiple groups of temperature elimination chambers through the isolation components. After the high-voltage current transformer passes the extreme stability test of high temperature or low temperature, the high-voltage current transformer that has just completed the test is moved to the multiple groups of temperature elimination chambers to eliminate the temperature of the high-voltage current transformer, thereby achieving the goal of slowly eliminating the temperature of the high-voltage current transformer that has just completed the extreme temperature test to prevent damage.

[0005] The present invention is implemented as follows: a high-voltage current transformer limit operating temperature error test device, comprising:

[0006] A driving base and a testing mechanism, wherein the testing mechanism is arranged on the upper surface of the driving base, two groups of temperature elimination boxes are arranged between the testing mechanisms, and placement components are detachably installed at both ends above the driving base for placing high-voltage current transformers, and a temperature elimination path is formed around the upper surface of the driving base, and two groups of placement components are symmetrically arranged on the temperature elimination path;

[0007] A plurality of isolation components and a plurality of delivery pipes, wherein the plurality of isolation components are equidistantly arranged on a temperature elimination path, the isolation components are arranged inside a temperature elimination box, and the temperature elimination box is divided into a plurality of chambers by the plurality of isolation components, one end of the delivery pipe is arranged in a testing mechanism, and the other end of the delivery pipe is arranged in the temperature elimination box.

[0008] Optionally, the test mechanism includes a high temperature test box and a low temperature test box, the high temperature test box and the low temperature test box are of the same size, and the high temperature test box and the low temperature test box are arranged in a horizontal manner, and the two groups of temperature elimination boxes are fixedly installed between the two groups of high temperature test boxes and the low temperature test box;

[0009] A hot air generator is arranged on the upper surface of the high temperature test box, and a cold air generator is arranged on the upper surface of the low temperature test box. One end of the high temperature test box and the low temperature test box are both open, and box doors are rotatably installed at the openings.

[0010] Optionally, the driving base includes a fixed seat and a driving motor, a connecting sleeve is provided on the upper surface of the fixed seat, the driving motor is arranged in the fixed seat, a connecting rod is fixedly installed on the output end of the driving motor, a turntable is fixedly installed on the outer surface of one end of the connecting rod, the turntable is rotatably installed in the connecting sleeve, and the rotation path of the turntable is a temperature dissipation path.

[0011] Optionally, a fixed plate is provided above the turntable, and the fixed plate is fixedly mounted on the lower surface of the testing mechanism. The outer surface of one end of the connecting rod is rotatably mounted on the middle of the fixed plate. A benchmark is provided above the fixed plate, and straight rods are fixedly mounted on both sides of the upper end of the benchmark. The two groups of straight rods are respectively arranged corresponding to the two groups of placement components.

[0012] Optionally, a slot is provided on the upper surface of the fixed plate, and traction components are slidably installed at both ends of the slot. A traction component is also slidably installed on the lower surface of the inner wall of the low-temperature test box, and the two groups of traction components are arranged in a horizontal manner, and one end of the traction component is arranged on the isolation component.

[0013] Optionally, the traction assembly includes a slider, a slot is opened inside the slider, a clockwork spring is arranged at the bottom end of the inner wall of the slot, a cylinder is arranged inside the clockwork spring, a winding wheel is fixedly mounted on the outer surface of the upper end of the cylinder, a traction rope is wound on the outer surface of the winding wheel, a fixed circular plate is fixedly mounted on one end of the traction rope, and one side of the fixed circular plate is fixedly mounted on the isolation assembly.

[0014] Optionally, the isolation assembly includes a mounting top plate and two groups of curtains, the mounting top plate is fixedly mounted on the inner upper surface of the temperature reduction box, the two groups of curtains are arranged correspondingly, the upper ends of the two groups of curtains are fixedly mounted on the mounting top plate, a protective layer is provided on one side of the curtain, and an insulation layer is provided on the other side of the curtain, a lead block is fixedly mounted on one corner of the lower end of the curtain, and one side of the fixed circular plate is fixedly mounted on one side of the lead block.

[0015] Optionally, the placement assembly includes a placement seat, two groups of limiting components are provided at both ends of the upper surface of the placement seat, a clamping block is fixedly installed at one end of the lower surface of the placement seat, and clamping grooves are opened at both ends of the upper surface of the fixed plate, the clamping block is clamped in the clamping groove, and an auxiliary pulley is fixedly installed at the other end of the lower surface of the placement seat, and the auxiliary pulley is in contact with the test mechanism and the lower surface of the inner wall of the temperature reduction box.

[0016] Optionally, the limiting component includes a sliding sleeve, which is slidably installed in the placement seat, and a screw is rotatably installed in the sliding sleeve. One end of the screw is connected to the inner thread of the placement seat to drive the sliding sleeve to slide, and a pressure plate is fixedly installed on the outer surface of the upper end of the sliding sleeve.

[0017] Optionally, a trigger plate is fixedly mounted on one end of the placement seat, and both ends of the trigger plate are inclined. Both ends of the trigger plate are respectively in contact with two groups of sliders, and a return spring is fixedly mounted on one side of the slider, and one end of the return spring is arranged on the inner wall of the slot.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By providing two groups of cooling boxes and multiple groups of isolation components in the present invention, the interior of the cooling box is divided into multiple groups of cooling chambers through the isolation components, so that after the high-voltage current transformer passes the extreme stability test of high temperature or low temperature, the high-voltage current transformer that has just completed the test can be moved to the multiple groups of cooling chambers to cool the high-voltage current transformer, thereby achieving the goal of slowly cooling the high-voltage current transformer that has just completed the extreme temperature test to prevent damage.

[0020] 2. When in use, the high-voltage current transformer is placed on the placement component provided by the present invention, and the placement component is used to limit and fix the high-voltage current transformer, thereby completing the limit and fixation of the high-voltage current transformer.

[0021] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a schematic diagram of the structure provided by the present invention;

[0023] FIG2 is a schematic diagram of a testing device provided by the present invention;

[0024] FIG3 is a schematic diagram showing the position of the isolation component provided by the present invention;

[0025] FIG4 is a schematic diagram of a delivery pipe provided by the present invention;

[0026] FIG5 is a schematic diagram of a driving base provided by the present invention;

[0027] FIG6 is a schematic diagram of a placement assembly provided by the present invention;

[0028] FIG7 is a schematic diagram of a fixed disk provided by the present invention;

[0029] FIG8 is a schematic diagram of a traction assembly provided by the present invention;

[0030] FIG. 9 is a schematic diagram of an isolation assembly provided by the present invention.

[0031] In the figure: 1. driving base; 101. fixing seat; 102. driving motor; 103. turntable; 104. fixing plate; 105. notch; 106. slot; 107. connecting rod; 108. connecting sleeve; 2. high temperature test chamber; 3. low temperature test chamber; 4. temperature elimination chamber; 5. cold air generator; 6. isolation component; 601. top plate installation; 602. blind; 603. insulation layer; 604. protective layer; 605. lead block; 7. placement component; 701. placement seat; 702. limit component ;7021, sliding sleeve;7022, pressure plate;7023, screw;703, auxiliary pulley;704, block;705, trigger plate;8, traction assembly;801, slider;802, spring;803, cylinder;804, winding wheel;805, traction rope;806, fixed circular plate;807, reset spring;9, conveying pipe;901, connector;902, hose;903, exhaust fan;10, benchmark;11, straight rod;12, thermometer;13, hot air generator. DETAILED DESCRIPTION

[0032] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0038] As shown in Figures 1 to 9, an embodiment of the present invention provides a high-voltage current transformer limit operating temperature error test device, comprising: a driving base 1 and a test mechanism, the test mechanism is arranged on the upper surface of the driving base 1, two groups of temperature elimination boxes 4 are arranged between the test mechanisms, and placement components 7 are detachably installed at both ends above the driving base 1 for placing the high-voltage current transformer, a temperature elimination path is formed around the upper surface of the driving base 1, and two groups of placement components 7 are symmetrically arranged on the temperature elimination path;

[0039] Specifically, as shown in Figures 1 and 2, the test mechanism includes a high-temperature test box 2 and a low-temperature test box 3. The high-temperature test box 2 and the low-temperature test box 3 are of the same size, and the high-temperature test box 2 and the low-temperature test box 3 are arranged in a horizontal manner. Two groups of temperature elimination boxes 4 are fixedly installed between the two groups of high-temperature test boxes 2 and the low-temperature test boxes 3; a hot air generator 13 is arranged on the upper surface of the high-temperature test box 2, and a cold air generator 5 is arranged on the upper surface of the low-temperature test box 3. One end of the high-temperature test box 2 and the low-temperature test box 3 are both open, and a box door is rotatably installed at the opening;

[0040] When in use, open the box door, fix the two groups of high-voltage current transformers on the placement components 7 in the high-temperature test box 2 and the low-temperature test box 3 respectively, limit and fix the high-voltage current transformers by the placement components 7, and then start the cold air generator 5 and the hot air generator 13 respectively, and continuously heat and cool the inside of the high-temperature test box 2 and the low-temperature test box 3, so as to test how much temperature the high-voltage current transformer can adapt to at the extreme temperature, whether it can achieve its own characteristics in the production process of the high-voltage current transformer, and whether there is an error between the tests, so as to prevent accidents and threats in future use, thereby improving safety. At the same time, the two groups of high-voltage current transformers are tested at low and high temperatures respectively. After completing a test, start the driving base 1 to drive the two groups of placement components 7 to change their positions, so that the tests of the two groups of high-voltage current transformers are replaced, thereby reducing the time wasted in replacement and the test time, and improving work efficiency.

[0041] During the position change process, the two groups of high-voltage current transformers will first pass through the de-temperature box 4, which will slowly de-temperature the high-voltage current transformers that have just completed the extreme temperature test, so as to prevent the high-voltage current transformers from having a large temperature drop, causing damage to the high-voltage current transformers and reducing resource waste.

[0042] It should be noted that the two groups of temperature elimination boxes 4 are respectively fixed at the two ends between the high temperature test box 2 and the low temperature test box 3, so as to form a closed and interconnected space.

[0043] Further, multiple groups of isolation components 6 and multiple groups of delivery pipes 9, multiple groups of isolation components 6 are equidistantly arranged on the dehumidification path, the isolation components 6 are arranged inside the dehumidification box 4, the dehumidification box 4 is divided into multiple groups of chambers by the multiple groups of isolation components 6, one end of the delivery pipe 9 is arranged in the test mechanism, and the other end of the delivery pipe 9 is arranged in the dehumidification box 4;

[0044] Specifically, as shown in Figures 1 to 4, multiple groups of isolation components 6 are equidistantly arranged on the temperature elimination path, and multiple groups of isolation components 6 are only arranged in the temperature elimination box 4, so as to form multiple groups of temperature storage chambers. When in use, one end of multiple groups of delivery pipes 9 can be inserted into the high-temperature test box 2 or the low-temperature test box 3, and the other end is respectively inserted into the corresponding temperature storage chamber to input gas into the multiple groups of temperature storage chambers so that the internal temperatures of the multiple groups of temperature storage chambers are different; for example, the temperature in the first group of temperature storage chambers is 10 degrees Celsius lower than the internal limit temperature of the high-temperature test box 2, and the temperature in the second group of temperature storage chambers is lower than the temperature in the first group of temperature storage chambers; on the contrary, the temperature in the first group of temperature storage chambers is 10 degrees Celsius higher than the internal limit temperature of the low-temperature test box 3, and the temperature in the second group of temperature storage chambers is higher than the temperature in the first group of temperature storage chambers, so as to slowly eliminate the temperature of the high-voltage current transformer that has just completed the limit temperature test to prevent damage.

[0045] It should be noted that different types of high-voltage current transformers can withstand different temperatures when being tested. When the high-voltage current transformer is tested next time, the air temperature inside the high-temperature test box 2 or the low-temperature test box 3 needs to be discharged to restore the temperature inside the two groups. Therefore, the present invention transports the air temperature inside the high-temperature test box 2 or the low-temperature test box 3 to the temperature storage chamber through the delivery pipe 9 respectively to decompose the temperature inside the two groups, so that there is no need to discharge the air inside the high-temperature test box 2 and the low-temperature test box 3, thereby reducing the waste of resources.

[0046] The delivery pipe 9 includes a connector 901 and a hose 902. The connector 901 is arranged in the high-temperature test box 2. One end of the hose 902 is fixedly installed on the connector 901. The other end of the hose 902 is fixedly installed with an exhaust fan 903. The lower end of the exhaust fan 903 is arranged in the temperature storage chamber. When in use, the exhaust fan 903 can be started to quantitatively extract heat from the high-temperature test box 2 and inject it into the temperature storage chamber. On the contrary, the low-temperature test box 3 is operated according to the above steps. A thermometer 12 is arranged on the exhaust fan 903. Through the thermometer 12, the internal temperature of the temperature storage chamber can be known during the injection of hot air.

[0047] It is worth noting that, as shown in Figures 1 to 4, the high temperature test box 2 and the low temperature test box 3 are respectively connected to a group of temperature elimination boxes 4. When the high-voltage current transformers inside the two groups are replaced, the rotation direction is counterclockwise.

[0048] Furthermore, the driving base 1 includes a fixing base 101 and a driving motor 102. A connecting sleeve 108 is provided on the upper surface of the fixing base 101. The driving motor 102 is arranged in the fixing base 101. A connecting rod 107 is fixedly installed on the output end of the driving motor 102. A rotating disk 103 is fixedly installed on the outer surface of one end of the connecting rod 107. The rotating disk 103 is rotatably installed in the connecting sleeve 108, and the rotating path of the rotating disk 103 is a temperature elimination path.

[0049] Specifically, as shown in Figure 5, start the drive motor 102 to drive the connecting rod 107 to rotate, and the connecting rod 107 will drive the turntable 103 to rotate in the connecting sleeve 108, thereby driving the two groups of placement components 7 to rotate, and the rotation path of the turntable 103 is the temperature elimination path. According to the above description, the placement component 7 can be active in the high temperature test box 2, the low temperature test box 3 and the two groups of temperature elimination boxes 4.

[0050] Furthermore, a fixed disk 104 is arranged above the rotating disk 103, and the fixed disk 104 is fixedly installed on the lower surface of the testing mechanism. The outer surface of one end of the connecting rod 107 is rotatably installed in the middle of the fixed disk 104. A benchmark 10 is arranged above the fixed disk 104, and straight rods 11 are fixedly installed on both sides of the upper end of the benchmark 10. Two groups of straight rods 11 are respectively arranged corresponding to the two groups of placement components 7;

[0051] Specifically, as shown in Figures 2, 5 and 7, when the connecting rod 107 rotates, the benchmark 10 connected to the connecting rod 107 will rotate accordingly. Since the two groups of straight rods 11 above the benchmark 10 correspond to the positions of the two groups of placement components 7, when the position of the placement component 7 is adjusted, the position indicated by the straight rod 11 is the position where the placement component 7 stays, making the work easier to observe and more intuitive, thereby improving convenience of use.

[0052] Furthermore, a notch 105 is provided on the upper surface of the fixing plate 104, and traction components 8 are slidably installed at both ends of the notch 105. A traction component 8 is also slidably installed on the lower surface of the inner wall of the low-temperature test box 3, and the two groups of traction components 8 are arranged in a horizontal manner, and one end of the traction component 8 is arranged on the isolation component 6;

[0053] Specifically, as shown in Figures 2, 8 and 9, when the placement component 7 passes through the isolation component 6, the lower ends of the isolation components 6 can be unfolded, so that the placement component 7 can be moved between the two groups of isolation components 6. When the movement is completed, the two groups of traction components 8 will automatically return to their original state, restore the isolation component 6 to its original state, and seal it to improve the airtightness.

[0054] Further, the traction assembly 8 includes a slider 801, a slot is provided inside the slider 801, a spring 802 is provided at the bottom end of the inner wall of the slot, a cylinder 803 is provided inside the spring 802, a winding wheel 804 is fixedly installed on the outer surface of the upper end of the cylinder 803, a traction rope 805 is wound on the outer surface of the winding wheel 804, a fixed circular plate 806 is fixedly installed on one end of the traction rope 805, and one side of the fixed circular plate 806 is fixedly installed on the isolation assembly 6; the isolation assembly 6 includes a mounting top plate 601 and two groups of blinds 602, the mounting top plate 601 is fixedly installed on the upper surface of the interior of the temperature elimination box 4, and the two groups of blinds 602 are arranged correspondingly; a lead block 605 is fixedly installed on one corner of the lower end of the blind 602, and one side of the fixed circular plate 806 is fixedly installed on one side of the lead block 605;

[0055] Specifically, as shown in Figures 8 and 9, when the placement component 7 passes through the two groups of curtains 602, the movement mode of the two groups of curtains 602 is to expand according to the direction of the force, so that one end of the two groups of curtains 602 will be attached to the placement component 7, resulting in the two groups of curtains 602 being unable to reset. Through the cooperation of the clockwork spring 802, the cylinder 803 and the lead block 605, when the above problem occurs to the curtain 602, the clockwork spring 802 will drive the cylinder 803 to rotate to pull the traction rope 805 to reset the curtain 602, and then through the weight of the lead block 605 itself, one end of the two groups of curtains 602 will be docked to complete the sealing.

[0056] Furthermore, the upper ends of the two sets of blinds 602 are fixedly mounted on the mounting top plate 601, a protective layer 604 is provided on one side of the blinds 602, and a heat preservation layer 603 is provided on the other side of the blinds 602;

[0057] Specifically, the heat-insulating layer 603 is made of heat-insulating materials, and the heat-insulating property of the two sets of blinds 602 can be improved by the heat-insulating layer 603 ; the protective layer 604 is made of high-temperature resistant and low-temperature resistant materials to improve the protective property of the blinds 602 .

[0058] It is worth noting that the protective layer 604 made of high temperature resistant and low temperature resistant materials is arranged according to the installation positions of the high temperature test box 2 and the low temperature test box 3 .

[0059] Further, the placement assembly 7 includes a placement seat 701, two sets of limiting components 702 are provided at both ends of the upper surface of the placement seat 701, a clamping block 704 is fixedly installed at one end of the lower surface of the placement seat 701, and a clamping groove 106 is provided at both ends of the upper surface of the fixed plate 104, and the clamping block 704 is clamped with the clamping groove 106, and an auxiliary pulley 703 is fixedly installed at the other end of the lower surface of the placement seat 701, and the auxiliary pulley 703 is in contact with the lower surface of the inner wall of the test mechanism and the temperature elimination box 4. When the placement seat 701 moves, the auxiliary pulley 703 can improve the stability of the placement seat 701 when moving;

[0060] Specifically, as shown in Figures 2, 6 and 7, when in use, the high-voltage current transformer is placed on the placement seat 701, the block 704 at the lower end of the placement seat 701 is docked with the slot 106 on the fixed plate 104, and the placement seat 701 is installed, thereby facilitating the disassembly and assembly of the high-voltage current transformer and improving work efficiency.

[0061] Furthermore, the limiting component 702 includes a sliding sleeve 7021, which is slidably installed in the placement seat 701, and a screw rod 7023 is rotatably installed in the sliding sleeve 7021. One end of the screw rod 7023 is connected to the internal thread of the placement seat 701 to drive the sliding sleeve 7021 to slide. A pressing plate 7022 is fixedly installed on the outer surface of the upper end of the sliding sleeve 7021;

[0062] Specifically, as shown in FIG6 , the screw rod 7023 is rotated downward, and the screw rod 7023 descends in the placement seat 701, thereby moving the sliding sleeve 7021 downward, so that the pressure plate 7022 can contact the high-voltage current transformer leg and limit and fix it, thereby completing the limit and fixation of the high-voltage current transformer.

[0063] Furthermore, a trigger plate 705 is fixedly mounted on one end of the placement seat 701, and both ends of the trigger plate 705 are inclined. Both ends of the trigger plate 705 are in contact with two sets of sliders 801 respectively, and a return spring 807 is fixedly mounted on one side of the slider 801, and one end of the return spring 807 is set on the inner wall of the slot 105;

[0064] Specifically, as shown in Figures 2, 6, 7 and 8, the distance between the two ends of the protrusion of the trigger plate 705 and the two groups of sliders 801 is the same, so that when the placement seat 701 moves, the two ends of the protrusion of the trigger plate 705 pass between the two groups of sliders 801, and the sliders 801 slide to both sides according to the inclination of the protrusion, thereby avoiding affecting the normal sliding. When the two groups of sliders 801 are no longer subjected to force, the return spring 807 will return the sliders 801 to their original positions.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the limit operating temperature error of a high voltage current transformer. It is characterized in that include: A driving base (1) and a testing mechanism, wherein the testing mechanism is arranged on the upper surface of the driving base (1), two groups of temperature elimination boxes (4) are arranged between the testing mechanisms, placement components (7) are detachably mounted at both ends of the upper side of the driving base (1) for placing a high-voltage current transformer, a temperature elimination path is formed around the upper surface of the driving base (1), and two groups of placement components (7) are symmetrically arranged on the temperature elimination path; A plurality of isolation components (6) and a plurality of delivery pipes (9), wherein the plurality of isolation components (6) are equidistantly arranged on a temperature elimination path, the isolation components (6) are arranged inside a temperature elimination box (4), the temperature elimination box (4) is divided by the plurality of isolation components (6) to form a plurality of chambers, one end of the delivery pipe (9) is arranged in a test mechanism, and the other end of the delivery pipe (9) is arranged in the temperature elimination box (4).

2. A high voltage current transformer limit operating temperature error testing device according to claim 1, Features: The testing mechanism comprises a high temperature testing box (2) and a low temperature testing box (3), the high temperature testing box (2) and the low temperature testing box (3) are of the same size, and the high temperature testing box (2) and the low temperature testing box (3) are arranged in a horizontal manner, and the two groups of temperature elimination boxes (4) are fixedly installed between the two groups of high temperature testing boxes (2) and the low temperature testing box (3); A hot air generator (13) is arranged on the upper surface of the high temperature test box (2), and a cold air generator (5) is arranged on the upper surface of the low temperature test box (3). One end of the high temperature test box (2) and the low temperature test box (3) are both open, and a box door is rotatably installed at the opening.

3. A high voltage current transformer limit operating temperature error testing device according to claim 2, Features: The driving base (1) comprises a fixing base (101) and a driving motor (102); a connecting sleeve (108) is provided on the upper surface of the fixing base (101); the driving motor (102) is arranged in the fixing base (101); a connecting rod (107) is fixedly mounted on the output end of the driving motor (102); a rotating disk (103) is fixedly mounted on the outer surface of one end of the connecting rod (107); the rotating disk (103) is rotatably mounted in the connecting sleeve (108); and a rotating path of the rotating disk (103) is a temperature elimination path.

4. A high voltage current transformer limit operating temperature error testing device according to claim 3, Features: A fixed disk (104) is arranged above the rotating disk (103), and the fixed disk (104) is fixedly mounted on the lower surface of the testing mechanism. The outer surface of one end of the connecting rod (107) is rotatably mounted on the middle of the fixed disk (104). A benchmark (10) is arranged above the fixed disk (104), and straight rods (11) are fixedly mounted on both sides of the upper end of the benchmark (10), and two groups of the straight rods (11) are respectively arranged corresponding to the two groups of placement components (7).

5. A high voltage current transformer limit operating temperature error testing device according to claim 4, Features: The upper surface of the fixing plate (104) is provided with a notch (105), and traction components (8) are slidably mounted at both ends of the notch (105). The lower surface of the inner wall of the low-temperature test box (3) is also slidably mounted with a traction component (8), and the two groups of traction components (8) are arranged in a horizontal manner, and one end of the traction component (8) is arranged on the isolation component (6).

6. A high voltage current transformer limit operating temperature error testing device according to claim 5, Features: The traction assembly (8) comprises a slider (801), a slot hole is provided inside the slider (801), a spring spring (802) is arranged at the bottom end of the inner wall of the slot hole, a cylinder (803) is arranged inside the spring spring (802), a winding wheel (804) is fixedly mounted on the outer surface of the upper end of the cylinder (803), a traction rope (805) is wound around the outer surface of the winding wheel (804), a fixed circular plate (806) is fixedly mounted on one end of the traction rope (805), and one side of the fixed circular plate (806) is fixedly mounted on the isolation assembly (6).

7. A high voltage current transformer limit operating temperature error testing device according to claim 6, Features: The isolation assembly (6) comprises a mounting top plate (601) and two groups of blinds (602); the mounting top plate (601) is fixedly mounted on the inner upper surface of the temperature elimination box (4); the two groups of blinds (602) are arranged correspondingly; the upper ends of the two groups of blinds (602) are fixedly mounted on the mounting top plate (601); a protective layer (604) is arranged on one side of the blinds (602); a heat-insulating layer (603) is arranged on the other side of the blinds (602); a lead block (605) is fixedly mounted on one corner of the lower end of the blinds (602); and one side of the fixed circular plate (806) is fixedly mounted on one side of the lead block (605).

8. A high voltage current transformer limit operating temperature error testing device according to claim 7, Features: The placement assembly (7) comprises a placement seat (701), two sets of limiting components (702) are arranged at both ends of the upper surface of the placement seat (701), a clamping block (704) is fixedly mounted on one end of the lower surface of the placement seat (701), a clamping groove (106) is opened at both ends of the upper surface of the fixed plate (104), the clamping block (704) is clamped with the clamping groove (106), and an auxiliary pulley (703) is fixedly mounted on the other end of the lower surface of the placement seat (701), and the auxiliary pulley (703) is in contact with the lower surface of the inner wall of the test mechanism and the temperature elimination box (4).

9. A high voltage current transformer limit operating temperature error testing device according to claim 8, Features: The limiting component (702) comprises a sliding sleeve (7021), the sliding sleeve (7021) is slidably mounted in the placement seat (701), a screw rod (7023) is rotatably mounted in the sliding sleeve (7021), one end of the screw rod (7023) is connected to the internal thread of the placement seat (701) to drive the sliding sleeve (7021) to slide, and a pressure plate (7022) is fixedly mounted on the outer surface of the upper end of the sliding sleeve (7021).

10. A high voltage current transformer limit operating temperature error testing device according to claim 9, Features: A trigger plate (705) is fixedly mounted on one end of the placement seat (701), and both ends of the trigger plate (705) are arranged at an angle. Both ends of the trigger plate (705) are respectively in contact with two groups of sliders (801), and a return spring (807) is fixedly mounted on one side of the slider (801), and one end of the return spring (807) is arranged on the inner wall of the notch (105).

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