Novel voltage transformer polarity tester

Abstract

The utility model belongs to the technical field of voltage transformer polarity test, and particularly relates to a novel voltage transformer polarity tester which comprises an aluminum alloy box body, a touch screen is arranged on one side of the aluminum alloy box body, a controller is arranged in the aluminum alloy box body, a power supply module is arranged in the aluminum alloy box body, and a voltage transformer is arranged in the aluminum alloy box body. A plurality of voltage output ports are arranged on the other side of the aluminum alloy box body so as to output different voltages, an analog quantity collector is arranged in the aluminum alloy box body, the touch screen is connected with the controller, the controller is connected with the power supply module, the power supply module is connected with the voltage output ports, and the voltage output ports are connected with the power supply module. According to the utility model, the touch screen, the controller, the power supply module, the voltage output port and the analog quantity collector are arranged on the aluminum alloy box body, so that when a polarity test is carried out on the voltage transformer, not only can manpower resources be saved, but also the test time can be greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage transformer polarity testing, in particular to a novel voltage transformer polarity testing instrument. Background Art

[0002] JJG314-2010 "Verification Regulations for Voltage Transformers for Measurement" stipulates that the winding polarity of voltage transformers for measurement is specified as subtractive polarity. When the primary voltage is applied, the voltage between the primary voltage polarity end and the secondary voltage polarity end is equal to the difference between the primary voltage and the secondary voltage. At present, secondary protection personnel often need to perform polarity tests on transformers during the maintenance and acceptance of voltage transformers to ensure that the secondary circuit wiring of the transformer meets the polarity requirements for protection and measurement.

[0003] The existing method of testing the polarity of voltage transformers requires repeated plugging and unplugging of the test line. In order to meet the relevant regulations of power engineering and the relevant provisions of the State Grid's anti-accident measures, relevant safety measures need to be taken during work; at the same time, more than two people are required to work together in the primary equipment and secondary circuit, which wastes a lot of human resources. Therefore, a new voltage transformer polarity tester is invented. Utility Model Content

[0004] In view of the above problems and / or the problems existing in the existing new voltage transformer polarity tester, the present utility model is proposed.

[0005] Therefore, the purpose of the present invention is to provide a novel voltage transformer polarity tester, which can solve the above-mentioned existing problems.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A novel voltage transformer polarity tester comprises an aluminum alloy box, a touch screen is provided on one side of the aluminum alloy box, a controller is arranged in the aluminum alloy box, a power module is arranged in the aluminum alloy box, a plurality of voltage output ports are arranged on the other side of the aluminum alloy box so as to output different voltages, and an analog quantity collector is arranged in the aluminum alloy box;

[0008] The touch screen is connected to the controller, the controller is connected to the power module, the power module is connected to the voltage output port, and the touch screen is also connected to the analog quantity collector.

[0009] As a preferred solution of the novel voltage transformer polarity tester described in the utility model, it also includes:

[0010] A lifting assembly is provided for facilitating personnel to carry the aluminum alloy box, and the lifting assembly is arranged on the side wall of the aluminum alloy box.

[0011] As a preferred solution of the novel voltage transformer polarity tester described in the utility model, the pulling assembly includes:

[0012] The box body is fixedly mounted on both ends of the side walls of the aluminum alloy box body;

[0013] A rotating shaft, both ends of the box body are rotatably connected to the rotating shaft through bearings;

[0014] Limiting plates, the limiting plates are fixedly installed on the opposite ends of the two groups of rotating shafts;

[0015] A roller, wherein the roller is fixedly installed between two sets of limiting plates;

[0016] The shoulder strap has two ends which pass through the box body and are fixedly mounted on rollers, and the two ends of the shoulder strap are respectively wound around a group of rollers.

[0017] As a preferred solution of the novel voltage transformer polarity tester described in the utility model, the pulling assembly further includes:

[0018] A box body, wherein the box body is fixedly mounted on the side wall of the box body;

[0019] A servo motor is fixedly installed in a box, and an output shaft of the servo motor is fixedly connected to a set of rotating shafts.

[0020] As a preferred solution of the novel voltage transformer polarity tester described in the utility model, it also includes:

[0021] The adsorption component can fix the aluminum alloy box body, and the adsorption component is arranged on the bottom of the aluminum alloy box body.

[0022] As a preferred solution of the novel voltage transformer polarity tester described in the utility model, the adsorption component includes:

[0023] A fixing plate, the fixing plate being fixedly mounted on the bottom of the aluminum alloy box;

[0024] A flow slot, wherein the flow slot is provided in the fixed plate;

[0025] Hollow tubes, a plurality of hollow tubes are fixedly installed at the bottom end of the fixed plate;

[0026] A vacuum suction cup is fixedly installed in the hollow tube.

[0027] As a preferred solution of the novel voltage transformer polarity tester described in the utility model, the adsorption component further includes:

[0028] A vacuum pump, wherein the vacuum pump is fixedly mounted on the side wall of the aluminum alloy box;

[0029] The pipeline is fixedly installed on the air inlet end of the vacuum pump, and one end of the pipeline extends into the circulation groove.

[0030] Compared with existing technologies:

[0031] 1. By setting a touch screen, controller, power module, voltage output port and analog quantity collector on the aluminum alloy box, it can not only save human resources but also greatly shorten the experimental time when conducting polarity test on voltage transformer;

[0032] 2. By setting the lifting component, it is convenient for personnel to carry the tester. In addition, the lifting component can also increase the carrying methods of personnel for the tester, such as carrying or shouldering;

[0033] 3. By setting up the adsorption component, the aluminum alloy box can be fixed, thereby preventing the tester from falling when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the process of the tester of the utility model;

[0035] Figure 2 It is a front view schematic diagram of the structure of the utility model;

[0036] Figure 3 It is a rear view schematic diagram of the structure of the utility model;

[0037] Figure 4 This is a schematic diagram of the front view of the structure of the utility model;

[0038] Figure 5 This is a cross-sectional schematic diagram of the adsorption component of the utility model;

[0039] Figure 6 This is a cross-sectional schematic diagram of the lifting assembly of the utility model;

[0040] Figure 7 It is a schematic side view of the local structure of the lifting component of the utility model.

[0041] In the figure: aluminum alloy box 10, touch screen 11, controller 12, power module 13, voltage output port 14, analog quantity collector 15, box body 20, rotating shaft 21, limit plate 22, roller 23, box body 24, servo motor 25, shoulder strap 26, fixing plate 30, circulation slot 31, hollow tube 32, vacuum suction cup 33, vacuum pump 34, pipeline 35. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] This utility model provides a new voltage transformer polarity tester, please refer to Figure 1-Figure 7 , including an aluminum alloy box 10, a touch screen 11 is provided on one side of the aluminum alloy box 10, a controller 12 is arranged in the aluminum alloy box 10, a power module 13 is arranged in the aluminum alloy box 10, and a plurality of voltage output ports 14 are provided on the other side of the aluminum alloy box 10 to output different voltages, an analog quantity collector 15 is arranged in the aluminum alloy box 10, the touch screen 11 is connected to the controller 12, the controller 12 is connected to the power module 13, the power module 13 is connected to the voltage output port 14, and the touch screen 11 is also connected to the analog quantity collector 15, wherein the controller 12 is preferably a 32-bit microcontroller chip based on the ARM Cortex-M architecture launched by STMicroelectronics; the power module 13 is preferably a battery.

[0044] Working principle: first connect the voltage transformer to the corresponding voltage output port 14 (preferably by cable), then use the touch screen 11 to enable the controller 12 to control the power module 13 so that the voltage output port 14 connected to the power module 13 can output the corresponding pulse voltage. At the same time, the analog quantity collector 15 will collect the secondary circuit voltage and current on the voltage transformer and make a test judgment. After that, it will be displayed on the touch screen 11, so as to realize the test of the polarity of the voltage transformer.

[0045] It also includes: a lifting assembly that facilitates personnel to carry the aluminum alloy box 10, and the lifting assembly is arranged on the side wall of the aluminum alloy box 10;

[0046] The lifting assembly includes: a box body 20, a rotating shaft 21, a limiting plate 22, a roller 23, a box body 24, a servo motor 25, and a shoulder strap 26;

[0047] The box body 20 is fixedly installed on both ends of the side wall of the aluminum alloy box body 10, and both ends of the box body 20 are rotatably connected to the rotating shaft 21 through bearings. The opposite ends of the two groups of rotating shafts 21 are fixedly installed with limit plates 22. The setting of the limit plates 22 can prevent the shoulder belt 26 on the roller 23 from slipping. The roller 23 is fixedly installed between the two groups of limit plates 22. Both ends of the shoulder belt 26 pass through the box body 20 and are fixedly installed on the roller 23, and the two ends of the shoulder belt 26 are respectively wrapped around a group of rollers 23. The box body 24 is fixedly installed on the side wall of the box body 20, and the servo motor 25 is fixedly installed in the box body 24, and the output shaft of the servo motor 25 is fixedly connected to a group of rotating shafts 21, wherein the two groups of servo motors 25 are connected to a group of switches so that the two groups of servo motors 25 can operate synchronously and at the same speed.

[0048] Working principle of the lifting assembly: When the tester needs to be carried, the servo motor 25 drives the rotating shaft 21 to drive the roller 23 to rotate, so that the roller 23 releases the shoulder strap 26 until the shoulder strap 26 is released to a suitable length. At this time, the person can use the shoulder strap 26 to lift the tester or carry the tester on his back.

[0049] It also includes: an adsorption component capable of fixing the aluminum alloy box body 10, and the adsorption component is arranged on the bottom of the aluminum alloy box body 10;

[0050] The adsorption assembly includes: a fixed plate 30, a flow slot 31, a hollow tube 32, a vacuum suction cup 33, a vacuum pump 34, and a pipeline 35;

[0051] The fixing plate 30 is fixedly installed on the bottom of the aluminum alloy box 10, the circulation groove 31 is opened in the fixing plate 30, a plurality of hollow tubes 32 are fixedly installed at the bottom end of the fixing plate 30, the vacuum suction cup 33 is fixedly installed in the hollow tube 32, the lower surface of the vacuum suction cup 33 is flush with the lower surface of the hollow tube 32, the vacuum pump 34 is fixedly installed on the side wall of the aluminum alloy box 10, the pipe 35 is fixedly installed on the air inlet end of the vacuum pump 34, and one end of the pipe 35 extends to the circulation groove 31.

[0052] Working principle of the adsorption component: When using the tester, the tester can be placed on a smooth and flat object. Then, the air in the vacuum suction cup 33 is extracted by the vacuum pump 34 to achieve the ability to adsorb and fix the tester on the object.

[0053] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A novel voltage transformer polarity tester, comprising an aluminum alloy box (10), characterized in that: A touch screen (11) is provided on one side of the aluminum alloy box (10), a controller (12) is provided in the aluminum alloy box (10), a power module (13) is provided in the aluminum alloy box (10), a plurality of voltage output ports (14) are provided on the other side of the aluminum alloy box (10) so as to be able to output different voltages, and an analog quantity collector (15) is provided in the aluminum alloy box (10); The touch screen (11) is connected to the controller (12), the controller (12) is connected to the power module (13), the power module (13) is connected to the voltage output port (14), and the touch screen (11) is also connected to the analog quantity collector (15).

2. The new voltage transformer polarity tester according to claim 1 is characterized in that: Also includes: A lifting assembly is provided for facilitating personnel to carry the aluminum alloy box (10), and the lifting assembly is arranged on a side wall of the aluminum alloy box (10).

3. The new voltage transformer polarity tester according to claim 2 is characterized in that: The lifting component comprises: A box body (20), the box body (20) being fixedly mounted on both ends of the side walls of the aluminum alloy box body (10); A rotating shaft (21), both ends of the box body (20) being rotatably connected to the rotating shaft (21) via bearings; A limiting plate (22), the limiting plates (22) being fixedly mounted on opposite ends of the two sets of rotating shafts (21); A roller (23), wherein the roller (23) is fixedly mounted between two sets of limit plates (22); A shoulder belt (26), both ends of which pass through the box body (20) and are fixedly mounted on rollers (23), and both ends of the shoulder belt (26) are respectively wound around a group of rollers (23).

4. The new voltage transformer polarity tester according to claim 3 is characterized in that: The lifting component also includes: A box body (24), wherein the box body (24) is fixedly mounted on a side wall of the box body (20); A servo motor (25), wherein the servo motor (25) is fixedly mounted in the box (24), and an output shaft of the servo motor (25) is fixedly connected to a set of rotating shafts (21).

5. The new voltage transformer polarity tester according to claim 1 is characterized in that: Also includes: An adsorption component is capable of fixing an aluminum alloy box body (10), and the adsorption component is arranged on the bottom of the aluminum alloy box body (10).

6. The new voltage transformer polarity tester according to claim 5 is characterized in that: The adsorption assembly comprises: A fixing plate (30), the fixing plate (30) being fixedly mounted on the bottom of the aluminum alloy box (10); A circulation groove (31), wherein the circulation groove (31) is formed in the fixing plate (30); Hollow tubes (32), a plurality of hollow tubes (32) being fixedly mounted on the bottom end of the fixing plate (30); A vacuum suction cup (33), wherein the vacuum suction cup (33) is fixedly installed in the hollow tube (32).

7. The new voltage transformer polarity tester according to claim 6 is characterized in that: The adsorption assembly also includes: A vacuum pump (34), wherein the vacuum pump (34) is fixedly mounted on a side wall of the aluminum alloy housing (10); A pipeline (35), wherein the pipeline (35) is fixedly mounted on the air inlet end of the vacuum pump (34), and one end of the pipeline (35) extends into the circulation groove (31).

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