Insulator distribution voltage measuring device and system

Abstract

The invention discloses an insulator distributed voltage measuring device and system, and belongs to the technical field of insulator distributed voltage testing.The insulator distributed voltage measuring device comprises a shell, a voltage measuring module, a voltage measuring module and a voltage measuring module, one end of the first electrode is fixedly connected with the shell, and the other end of the first electrode is used for abutting against an insulator; the second electrode comprises an elastic part and a contact part, one end of the elastic part is connected with the shell, the other end of the elastic part is provided with the contact part, and the contact part is used for abutting against an insulator; a detection area is formed between the first electrode and the second electrode, the elastic part can be bent in the direction close to or away from the first electrode, and the detection area is correspondingly decreased or increased. The size of the detection area between the first electrode and the second electrode is changed by bending the second electrode towards the direction close to or away from the first electrode so as to adapt to insulators of different voltage grades.

Description

Technical Field

[0001] The invention relates to the technical field of insulator distributed voltage testing, in particular to an insulator distributed voltage measuring device and system. Background Art

[0002] At present, the traditional detection method for insulators is the spark gap method. Its working principle is as follows: a metal probe with a gap is installed at the end of the detection rod. When the probe contacts the steel caps at the upper and lower ends of the insulator under test, sparks will be generated in the gap. The staff will judge the deterioration of the insulator by the sparks and discharge sounds. If the insulator under test is a zero-value insulator, it will not bear voltage, and there will be no sparks or discharge sounds. Figure 1 This detection method is susceptible to environmental interference.

[0003] Therefore, it is necessary to design a new insulator detection method, which detects the insulator by setting a first electrode and a second electrode. However, the distance between the existing first electrode and the second electrode is fixed, which cannot meet the detection requirements of insulators of different voltage levels. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the first object of the present invention is to provide an insulator distributed voltage measuring device that can change the measurement range and adapt to the detection requirements of insulators of different voltage levels.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an insulator distributed voltage measuring device, comprising a shell; a first electrode, one end of which is fixedly connected to the shell, and the other end is used to contact the insulator; a second electrode, comprising an elastic part and a contact part, one end of the elastic part is connected to the shell, and the other end of the elastic part is provided with the contact part, and the contact part is used to contact the insulator; a detection area is formed between the first electrode and the second electrode, and the elastic part can be bent in a direction close to or away from the first electrode, and the detection area is correspondingly reduced or increased.

[0008] As a preferred solution of the insulator distributed voltage measuring device of the present invention, wherein: the central axis of the first electrode and the central axis of the second electrode are located on the same vertical plane.

[0009] As a preferred solution of the insulator distributed voltage measuring device of the present invention, the contact portion is spherical in shape, the diameter of the contact portion is 10 mm, the center of the contact portion is coaxially arranged with the central axis of the elastic portion, and the maximum distance between the contact portion and one end of the elastic portion away from the shell is 9 mm.

[0010] As a preferred solution of the insulator distributed voltage measuring device of the present invention, wherein: in an initial state, the center of the contact portion is coaxially arranged with an end of the first electrode away from the shell.

[0011] As a preferred solution of the insulator distributed voltage measuring device of the present invention, wherein: the initial distance between the first electrode and the second electrode is 15 cm; when the second electrode is bent to the upper extreme point, the distance from the contact point between the contact portion and the insulator to the first electrode is 8 cm.

[0012] As a preferred solution of the insulator distributed voltage measuring device of the present invention, when the second electrode is bent to the lower extreme point, the distance from the contact point between the contact portion and the insulator to the first electrode is 22 cm.

[0013] As a preferred solution of the insulator distributed voltage measuring device of the present invention, the material of the first electrode is hard metal, the material of the elastic part is metal, and the shape of the elastic part is spiral.

[0014] As a preferred solution of the insulator distributed voltage measuring device of the present invention, it comprises an insulating rod, at least one of which is provided, and the insulating rod is rotatably connected to the shell.

[0015] The second object of the present invention is to provide an insulator distributed voltage measurement system, which can intuitively view the test results of the insulator in the form of remote signal transmission, replace the spark gap method test, and avoid environmental interference.

[0016] In order to solve the above technical problems, the present invention provides the following technical solutions: an insulator distributed voltage measurement system, comprising the above-mentioned insulator distributed voltage measurement device, and a voltage divider module, electrically connected to the first electrode and the second electrode, for converting the collected voltage into an output voltage; a transmission module, electrically connected to the voltage divider module, for transmitting the output voltage converted by the voltage divider module; and a receiving module, signal-connected to the transmission module, for remotely receiving the output voltage converted by the voltage divider module output by the transmission module.

[0017] As a preferred solution of the insulator distributed voltage measurement system of the present invention, the voltage divider module includes a first resistor and a second resistor connected in series, the first resistor corresponds to the high-voltage arm, the second resistor corresponds to the low-voltage arm, the second resistor is used for voltage division, and the voltage drop across the second resistor is the output voltage.

[0018] The beneficial effect of the present invention is that the second electrode is bent toward or away from the first electrode to change the size of the detection area between the first electrode and the second electrode, so as to adapt to insulators of different voltage levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 This is a test diagram of the spark gap method in the prior art.

[0021] Figure 2 This is the structural diagram of the insulator distributed voltage measurement device.

[0022] Figure 3 This is the connection diagram of the insulator distributed voltage measurement system.

[0023] Figure 4 Circuit diagram of the voltage divider module of the insulator distributed voltage measurement system. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figure 2 , which is the first embodiment of the present invention, provides an insulator distributed voltage measuring device, including a shell 100, a first electrode 200 and a second electrode 300; the shell 100 is used to install the first electrode 200 and the second electrode 300, and the first electrode 200 and the second electrode 300 are used to contact the insulator and collect voltage.

[0030] Specifically, the shell 100 is cylindrical in shape, and an insulating sleeve is sleeved on the outer circumferential surface of the shell 100. The shell 100 is made of metal, and the insulating sleeve is made of rubber. The circumferential diameter of the shell 100 is 50 mm and the length is 128 mm. A connecting rod is provided at the right end of the shell 100, and the width of the connecting rod is 20 mm.

[0031] Preferably, one end of the first electrode 200 is fixedly connected to the shell 100, and the other end is used to interfere with the insulator; the first electrode 200 of this embodiment includes an integrally formed horizontal rod and a vertical rod, the first electrode 200 is located as a whole above the shell 100, the vertical rod is welded and fixed to the connecting rod at the right end of the shell 100, and the horizontal rod is used to interfere with the insulator, wherein the length of the vertical rod is 137.5 mm, and the length of the horizontal rod is 250 mm.

[0032] Preferably, the second electrode 300 includes an elastic portion 301 and a contact portion 302. The second electrode 300 is located on the left side of the housing 100. The right end of the elastic portion 301 is connected to the housing 100. The other left end of the elastic portion 301 is provided with a contact portion 302, and the contact portion 302 is used to contact the insulator. A vertical reference plane is established with one end face of the horizontal rod of the first electrode 200 that contacts the insulator, and the leftmost end of the contact portion 302 of the second electrode 300 is located on the left side of the vertical reference plane.

[0033] Preferably, a detection area M is formed between the first electrode 200 and the second electrode 300, and the elastic portion 301 can be bent in a direction close to the first electrode 200, and the detection area M is correspondingly reduced. The detection area M is reduced in order to adapt to insulators of different voltage levels. And in order for the user to measure the insulator using the insulator distributed voltage test device, the first electrode 200 and the second electrode 300 are always in vertical contact with the side wall of the insulator for measurement, which can improve the accuracy of the measurement compared to the inclined measurement. Therefore, the leftmost end of the contact portion 302 of the second electrode 300 needs to be located on the left side of the vertical reference plane, so that even if the elastic portion 301 can be bent in a direction close to the first electrode 200, a margin can be provided for the second electrode 300, so that the second electrode 300 is always in vertical contact with the side wall of the insulator for measurement.

[0034] If the leftmost end of the contact portion 302 of the second electrode 300 is located on the right side of or overlaps with the vertical reference plane, once the elastic portion 301 is adjusted to bend in a direction close to the first electrode 200, the operator will inevitably need to tilt the entire insulator distributed voltage measuring device to ensure that the second electrode 300 is in contact with the side wall of the insulator. In this case, the first electrode 200 and the second electrode 300 cannot always maintain vertical contact with the side wall of the insulator for measurement, which will cause measurement errors.

[0035] Example 2

[0036] This is the second embodiment of the present invention, which is basically the same as the first embodiment, except that the elastic part 301 of this embodiment is bent in a direction away from the first electrode 200, and the detection area M is correspondingly increased. The increase in the detection area M is also for adapting to insulators of different voltage levels. As for how to bend the elastic part 301, first the first electrode 200 is in contact with the side wall of the insulator, and then the inclined insulator distributed voltage measurement device is gradually supported to be vertical. In this process, the elastic part 301 is compressed and bent.

[0037] Example 3

[0038] See also Figure 2 , which is the third embodiment of the present invention, and is based on embodiment 1 or embodiment 2.

[0039] Preferably, the central axis of the horizontal rod of the first electrode 200 and the central axis of the second electrode 300 are located on the same vertical plane, that is, the horizontal rod of the first electrode 200 and the second electrode 300 are arranged parallel to each other.

[0040] Preferably, the contact portion 302 is spherical in shape, the diameter of the contact portion 302 is 10 mm, the center of the contact portion 302 is coaxially arranged with the central axis of the elastic portion 301, and the maximum distance between the contact portion 302 and the end of the elastic portion 301 away from the housing 100 is 9 mm. In the initial state, the center of the contact portion 302 is coaxially arranged with the end of the first electrode 200 away from the housing 100, that is, the center of the contact portion 302 of the second electrode 300 is located on the vertical reference plane. The shape of the contact portion 302 is set to be spherical so that after the elastic portion is bent, the contact portion 302 is still in vertical contact with the side wall of the insulator.

[0041] Furthermore, the initial distance between the first electrode 200 and the second electrode 300 is 15 cm; when the second electrode 300 is bent to the upper extreme point, the distance between the contact point of the contact portion 302 and the insulator and the first electrode 200 is 8 cm. When the second electrode 300 is bent to the lower extreme point, the distance between the contact point of the contact portion 302 and the insulator and the first electrode 200 is 22 cm. That is, the test range of 8 cm to 22 cm is guaranteed, and this range can meet the detection requirements of insulators of different voltage levels.

[0042] Further, the material of the first electrode 200 is hard metal, the material of the elastic part 301 is metal, and the shape of the elastic part 301 is spiral, that is, similar to a spring.

[0043] Furthermore, it includes an insulating rod 400, at least one insulating rod 400 is provided, and three insulating rods 400 are provided in this embodiment, the three insulating rods 400 are threadedly connected in sequence, one of the insulating rods 400 is rotatably connected to the shell 100, and the material of the insulating rod 400 is epoxy resin.

[0044] Example 4

[0045] See also Figure 2 to Figure 4 , which is the fourth embodiment of the present invention, and is based on the above embodiment. This embodiment provides an insulator distributed voltage measurement system, including a voltage dividing module 500, a transmission module 600 and a receiving module 700.

[0046] Specifically, the voltage divider module 500 is electrically connected to the first electrode 200 and the second electrode 300, and is used to convert the collected voltage into an output voltage; the transmission module 600 is electrically connected to the voltage divider module 500, and is used to transmit the output voltage converted by the voltage divider module 500; the receiving module 700 is signal-connected to the transmission module 600, and is used to remotely receive the output voltage converted by the voltage divider module 500 output by the transmission module 600.

[0047] Preferably, the voltage dividing module 500 includes a first resistor R hand a second resistor R1, the second resistor R1 is used for voltage division, and the voltage drop across the second resistor R1 is the output voltage.

[0048] It is worth noting that if you want to measure the distributed voltage on the insulator, you must convert the voltage value actually borne by the insulator into a voltage value that can be measured by the measurement circuit. The calculation formula for the voltage divider ratio is as follows:

[0049]

[0050] The first resistor R h Corresponding to the high voltage arm, the second resistor R1 corresponds to the low voltage arm.

[0051] Based on the above, the beneficial effects of the present invention are:

[0052] 1. By designing the second electrode 300 to be an elastic portion 301 and a contact portion 302, and by bending the elastic portion 301 toward or away from the first electrode, the detection area M is correspondingly reduced or increased to adjust the detection range, thereby adapting to the detection requirements of insulators of different voltage levels.

[0053] 2. The leftmost end of the contact portion 302 of the second electrode 300 is located on the left side of the vertical reference plane. In this way, even if the elastic portion 301 can bend in the direction close to the first electrode 200, a margin can be provided for the second electrode 300, so that the second electrode 300 always maintains a vertical contact with the side wall of the insulator for measurement. Compared with measuring the entire insulator distributed voltage measuring device in an inclined manner, the possible error can be reduced.

[0054] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0055] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0056] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An insulator distributed voltage measuring device, characterized in that: include: Housing (100); A first electrode (200), one end of which is fixedly connected to the housing (100) and the other end of which is used to contact the insulator; A second electrode (300) comprises an elastic portion (301) and a contact portion (302), wherein one end of the elastic portion (301) is connected to the housing (100), and the other end of the elastic portion (301) is provided with the contact portion (302), and the contact portion (302) is used to contact the insulator; A detection area (M) is formed between the first electrode (200) and the second electrode (300), and the elastic portion (301) is capable of bending in a direction approaching or moving away from the first electrode (200), and the detection area (M) is correspondingly reduced or increased.

2. The insulator distributed voltage measuring device according to claim 1, characterized in that: The central axis of the first electrode (200) and the central axis of the second electrode (300) are located on the same vertical plane.

3. The insulator distributed voltage measuring device according to claim 2, characterized in that: The contact portion (302) is spherical in shape, has a diameter of 10 mm, a center of the contact portion (302) and a center axis of the elastic portion (301) coaxially disposed, and a maximum distance between the contact portion (302) and an end of the elastic portion (301) away from the shell (100) is 9 mm.

4. The insulator distributed voltage measuring device according to claim 3, characterized in that: In an initial state, the center of the contact portion (302) is coaxially arranged with an end of the first electrode (200) that is away from the housing (100).

5. The insulator distributed voltage measuring device according to claim 3 or 4, characterized in that: The initial distance between the first electrode (200) and the second electrode (300) is 15 cm; When the second electrode (300) is bent to the upper extreme point, the distance from the contact point between the contact portion (302) and the insulator and the first electrode (200) is 8 cm.

6. The insulator distributed voltage measuring device according to claim 5, characterized in that: When the second electrode (300) is bent to the lower extreme point, the distance from the contact point between the contact portion (302) and the insulator and the first electrode (200) is 22 cm.

7. The insulator distributed voltage measuring device according to claim 6, characterized in that: The material of the first electrode (200) is hard metal, the material of the elastic part (301) is metal, and the shape of the elastic part (301) is spiral.

8. The insulator distributed voltage measuring device according to claim 5, characterized in that: It comprises an insulating rod (400), at least one of which is provided, and the insulating rod (400) is rotatably connected to the housing (100).

9. An insulator distributed voltage measurement system, characterized in that: The device comprises the insulator distributed voltage measuring device as claimed in any one of claims 1 to 8, and A voltage dividing module (500), electrically connected to the first electrode (200) and the second electrode (300), and used for converting the collected voltage into an output voltage; A transmission module (600), electrically connected to the voltage dividing module (500), and used for transmitting the output voltage converted by the voltage dividing module (500); The receiving module (700) is signal-connected to the transmission module (600) and is used to remotely receive the output voltage converted by the voltage dividing module (500) and output by the transmission module (600).

10. The insulator distributed voltage measurement system according to claim 9, characterized in that: The voltage dividing module (500) comprises a first resistor (R h ) and a second resistor (R1), the first resistor (R h ) corresponds to the high voltage arm, the second resistor (R1) corresponds to the low voltage arm, the second resistor (R1) is used for voltage division, and the voltage drop across the second resistor (R1) is the output voltage.

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