Insulator detection device and use method

Abstract

The invention relates to the technical field of insulator detection, in particular to an insulator detection device and a using method thereof, which comprises a fixed seat hung at the upper end of a cable, a detection shell arranged at the lower end of the fixed seat and a supporting shell arranged at the lower end of the detection shell, the fixing seat comprises clamping pieces vertically distributed in the middle of the fixing seat and a stand column arranged at the lower end of the fixing seat, a positioning block is arranged at the position, close to the clamping pieces, of the upper end of the stand column, a connecting shaft is arranged in the middle of the detection shell, the detection shell is arranged in the positioning block through the inner side of the connecting shaft, and an MCU module is arranged in the detection shell. The MCU module is connected with a test voltage generation unit, a wireless communication unit, an inspection and measurement unit and a storage battery through wires in the detection shell; the device has the advantages that the working state of the insulator can be monitored on line, the faulty insulator can be found in time, maintenance and replacement can be carried out in time, the operation reliability of a power grid system is improved, the working efficiency of insulator testing is also improved, and meanwhile installation and replacement are convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of insulator detection, and in particular to an insulator detection device and a use method thereof. Background Art

[0002] With the continuous improvement of people's living standards and the rapid development of industrial and agricultural industries, the safety and reliability of power transmission and power supply in the power system have received more and more attention. In recent years, my country's power companies have vigorously developed ultra-high voltage and ultra-high voltage transmission systems. Insulators are one of the most important components of transmission lines. Their operating status directly determines the safety and reliability of power transmission and distribution in the power grid. In order to ensure the safe and reliable operation of transmission lines, it is necessary to perform status detection on the insulators in operation after the overhead transmission lines have been in operation for a period of time.

[0003] Therefore, in order to solve the above problems, an insulator detection device and method for use that can monitor the working status of insulators online, detect faulty insulators in time, and repair and replace them in time are proposed, which improves the reliability of power grid system operation and the work efficiency of insulator testing, and is easy to install and replace. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an insulator detection device and a method of use to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an insulator detection device, comprising a fixing seat hung on the upper end of a cable, a detection shell arranged at the lower end of the fixing seat and a support shell arranged at the lower end of the detection shell, the fixing seat comprising a clamping piece arranged in the middle of the fixing seat and a column arranged at the lower end of the fixing seat in an upper and lower distribution, a positioning block is arranged at the upper end of the column near the clamping piece, a connecting shaft is arranged in the middle of the detection shell, the detection shell is arranged in the positioning block through the inner side of the connecting shaft, an MCU module is arranged inside the detection shell, the MCU module is connected with a test voltage generating unit, a wireless communication unit, an inspection and measurement unit and a battery through wires in the detection shell, the test voltage generating unit and the inspection and measurement unit are both connected with a detection line arranged inside the support shell, the detection line is provided with a metal contact in the column, and the metal contact is arranged in the column to fit the top of the insulator.

[0006] Preferably, the test voltage generating unit includes a first resistor and a high voltage generator, the high voltage generator is used to generate a high voltage when the insulator detects the test voltage, the first resistor is used to apply the high voltage generated by the high voltage generator to the insulator, and the first resistor is connected in series between the insulator and the high voltage generator.

[0007] Preferably, the inspection and measurement unit includes a second resistor for measuring the detection voltage from the insulator and a detection voltage signal buffer for receiving the detection voltage measured by the second resistor, the inspection and measurement unit includes a DC component separated from the detection voltage measured by the signal buffer and generating a DC generator and an AC generator, and the signal buffer separates the DC component and AC component of the input detection voltage through the DC generator and the AC generator and generates a trigger signal.

[0008] Preferably, the signal buffer is connected to a signal measuring unit via a DC generator and an AC generator, and the signal measuring unit is used to measure the insulator inspection signal of the DC component and the AC component separated by the signal buffer to check the state of the insulator.

[0009] Preferably, the wireless communication unit is connected to a monitoring unit for storing, recording and reporting the insulator status determination result.

[0010] Preferably, a connecting flange is provided at the bottom of the lower end of the column, and the column is fixedly connected to the insulator in the supporting shell through the connecting flange.

[0011] Preferably, the column is further provided with a first spring at the upper end in the support shell, a stopper is fixedly provided at the lower end of the column, connecting columns are provided on both sides of the column between the stopper and the connecting flange, and the detection line is provided in the connecting columns.

[0012] Preferably, a second spring is arranged inside the column between the detection line and the metal contact.

[0013] Preferably, a bidirectional screw is provided inside one side of the fixed seat, a knob is provided on the bidirectional screw, the knob is provided on one side of the upper surface of the fixed seat, and the clamping member is provided with a limit seat distributed up and down outside the other side of the fixed seat, the limit seat is connected to a limit block at the bottom of the fixed seat, and the upper end of the limit block is bolted to the limit seat.

[0014] A method for using an insulator detection device comprises the following steps: The first step is to first install the insulator in the column and the connecting flange arranged on the inner side of the supporting shell by the lower end of the fixing seat, and to make the metal contact arranged inside the column fit the installed insulator; In the second step, when the insulator is tested, the testing shell provided at the upper end of the supporting shell is used to pass through the MCU module provided inside the testing shell, and the test voltage generating unit connected to the MCU module is used to generate the insulator test voltage through the high-voltage generator connected to the test voltage generating unit, and the test voltage is applied to the insulator through the first resistor provided in the test voltage generating unit through the one side detection line through the second spring; The third step is to connect the inspection and measurement unit in the detection shell through the MCU module, measure the detection voltage from the insulator through the second resistor connected to the inspection and measurement unit, receive the detection voltage measured by the second resistor in the signal buffer connected to the inspection and measurement unit, and make the measured voltage pass through the connected DC generator and AC generator to have DC component and AC component through the signal buffer, and generate a first inspection signal of the detection voltage on the insulator by the DC component, and generate a second inspection signal of the detection voltage on the insulator by the AC component, and apply the first inspection signal and the second inspection signal to the signal measurement unit; Step 4: Then, the measured first inspection signal and the second inspection signal are received by the signal measurement unit, the insulation resistance and the shared voltage of the insulator are detected, and the state of the insulator is determined; The fifth step, finally, the test voltage generating unit and the inspection and measuring unit detection data are processed by the MCU module, and the insulator detection result is determined. The wireless communication unit is provided to transmit the wireless signal so that the insulator detection result is transmitted to the monitoring unit for monitoring, storage, analysis and processing of data, so as to achieve the high voltage of the insulator when the insulator is energized, determine whether the energized insulator has a fault for any voltage, and expand the range of measuring insulation resistance. By measuring the shared voltage and insulation resistance and considering the signal phase distortion, the faulty insulator is identified, thereby improving the convenience and reliability of insulator detection.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention constitutes the insulator detection device by a fixing seat hung on the upper end of the cable, a detection shell arranged at the lower end of the fixing seat and a supporting shell arranged at the lower end of the detection shell, thereby realizing the ability to quickly disassemble, install and replace the insulator. At the same time, the insulator detection device maintains a high voltage of the insulator in a energized state, determines whether a energized insulator has a fault for any voltage, and expands the range of measuring insulation resistance. By measuring the shared voltage and insulation resistance and considering the signal phase distortion, defective insulators are identified, thereby improving the convenience and reliability of insulator detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the detection shell of the present invention being installed on a fixing base; Figure 3 It is a schematic diagram of the structure of the fixing seat of the present invention; Figure 4 It is a schematic diagram of the detection shell structure of the present invention; Figure 5 It is a schematic diagram of the overall internal structure of the present invention; Figure 6 This is a structural framework diagram of the insulator detection of the present invention.

[0017] Explanations in the figure: 1. Fixed seat; 2. Detection shell; 3. Support shell; 4. Knob piece; 5. Clamping piece; 6. Limit seat; 7. Limit block; 8. Column; 9. Stopper; 10. Connecting flange; 11. First spring; 12. Connecting column; 13. Positioning block; 14. Connecting shaft; 15. Bidirectional screw; 16. MCU module; 17. Test voltage generating unit; 18. Wireless communication unit; 19. Inspection and measurement unit; 20. Battery; 21. Detection line; 22. Second spring; 23. Metal contact; 24. First resistor; 25. High voltage generator; 26. Monitoring unit; 27. Second resistor; 28. Signal buffer; 29. ​​DC generator; 30. AC generator; 31. Signal measurement unit. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0019] like Figure 1-3As shown, the present embodiment discloses an insulator detection device and a method of use, which comprises a fixing seat 1 hung on the upper end of a cable, a detection shell 2 arranged at the lower end of the fixing seat 1 and a support shell 3 arranged at the lower end of the detection shell 2, the fixing seat 1 comprises a clamping member 5 arranged in the middle of the fixing seat 1 and a column 8 arranged at the lower end of the fixing seat 1 in an upper and lower distribution, a positioning block 13 is arranged at the upper end of the column 8 near the clamping member 5, a connecting shaft 14 is arranged in the middle of the detection shell 2, the detection shell 2 is arranged in the positioning block 13 through the inner side of the connecting shaft 14, an MCU module 16 is arranged inside the detection shell 2, the MCU module 16 is connected to a test voltage generating unit 17, a wireless communication unit 18, an inspection and measurement unit 19 and a battery 20 by wires in the detection shell 2, the test voltage generating unit 17 and the inspection and measurement unit 19 are both connected to a detection line 21 arranged inside the support shell 3, the detection line 21 is provided with a metal contact 23 in the column 8, and the metal contact 23 is arranged in the column 8 to fit the top of the insulator.

[0020] In this embodiment, the knob member 4 at the upper end of the fixing seat 1 is rotated to drive the bidirectional screw 15 inside the fixing seat 1 to pass through the clamping member 5, so as to realize the fixed setting of the device on the cable, thereby improving the efficiency in the process of installing and replacing the insulator. At the same time, the fixing seat 1 includes a clamping member 5 arranged at the upper end, and the clamping member 5 is provided with a bidirectional screw 15 inside one side of the fixing seat 1, and a knob member 4 is provided on the bidirectional screw 15. The knob member 4 is arranged on one side of the upper surface of the fixing seat 1, and the clamping member 5 is provided with a limit seat 6 distributed up and down outside the other side of the fixing seat 1. The limit seat 6 is connected to the limit block 7 at the bottom of the fixing seat 1, and the upper end of the limit block 7 is bolted to the limit seat 6, which is conducive to stably hanging the device in a suitable position to ensure the safe and reliable operation of the transmission line.

[0021] In this embodiment, the fixing seat 1 also includes a column 8 arranged at the lower end, a positioning block 13 is arranged at the upper end of the column 8, a detection shell 2 is arranged inside the positioning block 13, and a stopper 9 is also arranged at the lower end of the column 8. A first spring 11 is arranged on the column 8 between the stopper 9 and the detection shell 2 fixed on the positioning block 13, and a support shell 3 is installed and arranged through the lower end of the detection shell 2, so that the support shell 3 is shaped like a truncated cone, so that when the fixing seat 1 fixes the insulator through the lower end column 8 and the connecting flange 10, it can achieve a firm structure and a stable center of gravity, and at the same time, the insulator is not easy to shake during the installation process. Example

[0022] like Figure 1-6As shown, the present embodiment discloses an insulator detection device and a method of use, which comprises a fixing seat 1 hung on the upper end of a cable, a detection shell 2 arranged at the lower end of the fixing seat 1 and a support shell 3 arranged at the lower end of the detection shell 2, the fixing seat 1 comprises a clamping member 5 arranged in the middle of the fixing seat 1 and a column 8 arranged at the lower end of the fixing seat 1 in an upper and lower distribution, a positioning block 13 is arranged at the upper end of the column 8 near the clamping member 5, a connecting shaft 14 is arranged in the middle of the detection shell 2, the detection shell 2 is arranged in the positioning block 13 through the inner side of the connecting shaft 14, an MCU module 16 is arranged inside the detection shell 2, the MCU module 16 is connected to a test voltage generating unit 17, a wireless communication unit 18, an inspection and measurement unit 19 and a battery 20 by wires in the detection shell 2, the test voltage generating unit 17 and the inspection and measurement unit 19 are both connected to a detection line 21 arranged inside the support shell 3, the detection line 21 is provided with a metal contact 23 in the column 8, and the metal contact 23 is arranged in the column 8 to fit the top of the insulator.

[0023] In this embodiment, a connecting flange 10 is provided at the bottom of the lower end of the column 8, and the column 8 is fixedly connected to the insulator in the support shell 3 through the connecting flange 10. A first spring 11 is also provided at the upper end of the column 8 in the support shell 3. A stopper 9 is fixedly provided at the lower end of the column 8 by the first spring 11. A connecting column 12 is provided on both sides of the column 8 between the stopper 9 and the connecting flange 10. The detection line 21 is provided in the connecting column 12, which is used to contact the installed insulator and detect its status through the detection shell 2.

[0024] In this embodiment, a test voltage generating unit 17, a wireless communication unit 18, an inspection and measurement unit 19 and a battery 20 are connected in the detection shell 2 through wires. The test voltage generating unit 17 is provided with a first resistor 24 and a high voltage generator 25, so that it generates a high voltage when the high voltage generator 25 is used to detect the test voltage of the insulator. The first resistor 24 is connected in series between the insulator and the high voltage generator 25, and the first resistor 24 is used to apply the high voltage generated by the high voltage generator 25 to the insulator; the wireless communication unit 18 is connected to a monitoring unit 26 for storing, recording and reporting the insulator state determination result; the inspection and measurement unit 19 is provided with a detection voltage generator 25 for measuring the detection voltage from the insulator. The second resistor 27 and the signal buffer 28 for receiving the detection voltage measured by the second resistor 27, the inspection and measurement unit 19 includes a DC generator 29 and an AC generator 30 for separating the DC component from the detection voltage measured by the signal buffer 28, and the signal buffer 28 separates the DC component and the AC component of the input detection voltage through the DC generator 29 and the AC generator 30 and generates a trigger signal, and the signal buffer 28 is connected to a signal measuring unit 31 through the DC generator 29 and the AC generator 30, and the signal measuring unit 31 is used to measure the insulator inspection signal of the DC component and the AC component separated by the signal buffer 28 to check the state of the insulator.

[0025] A method for using an insulator detection device comprises the following steps: In the first step, first, the insulator is embedded in the column 8 and the connecting flange 10 arranged on the inner side of the supporting shell 3 at the lower end of the fixing seat 1, and the metal contact 23 arranged inside the column 8 is fitted to the installed insulator; In the second step, when the insulator is tested, the testing shell 2 provided at the upper end of the supporting shell 3 is used to pass through the MCU module 16 provided inside the testing shell 2, and the test voltage generating unit 17 connected to the MCU module 16. The high-voltage generator 25 connected to the test voltage generating unit 17 generates an insulator test voltage, and the test voltage generating unit 17 is applied to the insulator through the first resistor 24 provided to the test voltage generating unit 17 and the one-side detection line 21, so that the test voltage is applied to the insulator through the second spring 22; The third step, then, the inspection and measurement unit 19 is connected in the detection shell 2 through the MCU module 16, and the second resistor 27 connected to the inspection and measurement unit 19 measures the detection voltage from the insulator, and the signal buffer 28 connected to the inspection and measurement unit 19 receives the detection voltage measured by the second resistor 27, and the measured voltage is subjected to the DC component and the AC component through the signal buffer 28 through the connected DC generator 29 and the AC generator 30, and at the same time, the first inspection signal of the detection voltage on the insulator is generated by the DC component, and the second inspection signal of the detection voltage on the insulator is generated by the AC component, and the first inspection signal and the second inspection signal are applied to the signal measurement unit 31; Step 4: Then, the measured first inspection signal and the second inspection signal are received by the signal measuring unit 31, the insulation resistance and the shared voltage of the insulator are detected, and the state of the insulator is determined; The fifth step, finally, the MCU module 16 processes the test voltage generating unit 17 and the inspection and measurement unit 19 detection data, and determines the insulator detection result, and the wireless communication unit 18 is provided to transmit the wireless signal, so that the insulator detection result is transmitted to the monitoring unit 26 for monitoring, storage, analysis, and processing of data, so as to achieve the high voltage of the insulator when the insulator is energized, determine whether the energized insulator has a fault for any voltage, and expand the range of measuring insulation resistance. By measuring the shared voltage and insulation resistance and considering the signal phase distortion, the faulty insulator is identified, thereby improving the convenience and reliability of the insulator detection work.

[0026] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An insulator detection device, comprising a fixing seat (1) hung on the upper end of a cable, a detection shell (2) arranged at the lower end of the fixing seat (1), and a support shell (3) arranged at the lower end of the detection shell (2), characterized in that: The fixing seat (1) comprises a clamping member (5) arranged in an upper and lower distribution in the middle of the fixing seat (1) and a column (8) arranged at the lower end of the fixing seat (1); a positioning block (13) is arranged at the upper end of the column (8) near the clamping member (5); a connecting shaft (14) is arranged in the middle of the detection shell (2); the detection shell (2) is arranged in the positioning block (13) through the inner side of the connecting shaft (14); an MCU module (16) is arranged inside the detection shell (2); the MCU module (16) 6) A test voltage generating unit (17), a wireless communication unit (18), an inspection and measurement unit (19) and a storage battery (20) are connected by wires in the detection shell (2); the test voltage generating unit (17) and the inspection and measurement unit (19) are both connected to a detection line (21) arranged inside the support shell (3); the detection line (21) is provided with a metal contact (23) in the column (8); and the metal contact (23) is arranged in contact with the top of the insulator in the column (8).

2. An insulator detection device according to claim 1, characterized in that: The test voltage generating unit (17) comprises a first resistor (24) and a high voltage generator (25); the high voltage generator (25) is used to generate a high voltage when the insulator detects a test voltage; the first resistor (24) is used to apply the high voltage generated by the high voltage generator (25) to the insulator; and the first resistor (24) is connected in series between the insulator and the high voltage generator (25).

3. The insulator detection device according to claim 1, characterized in that: The inspection and measurement unit (19) comprises a second resistor (27) for measuring the detection voltage from the insulator and a signal buffer (28) for receiving the detection voltage measured by the second resistor (27); the inspection and measurement unit (19) comprises a DC generator (29) and an AC generator (30) for separating a DC component from the detection voltage measured by the signal buffer (28) and generating a DC component; the signal buffer (28) separates the DC component and the AC component of the input detection voltage through the DC generator (29) and the AC generator (30) and generates a trigger signal.

4. An insulator detection device according to claim 3, characterized in that: The signal buffer (28) is connected to a signal measuring unit (31) via a DC generator (29) and an AC generator (30), and the signal measuring unit (31) is used to measure the insulator inspection signal of the DC component and the AC component separated by the signal buffer (28) to inspect the state of the insulator.

5. The insulator detection device according to claim 1, characterized in that: The wireless communication unit (18) is connected to a monitoring unit (26) for storing, recording and reporting insulator state determination results.

6. An insulator detection device according to claim 5, characterized in that: A connecting flange (10) is provided at the bottom of the lower end of the column (8), and the column (8) is fixedly connected to the insulator in the supporting shell (3) via the connecting flange (10).

7. An insulator detection device according to claim 6, characterized in that: The column (8) is further provided with a first spring (11) at the upper end thereof in the support shell (3); a stopper (9) is fixedly provided at the lower end of the column (8) on the first spring (11); connecting columns (12) are provided on both sides of the column (8) between the stopper (9) and the connecting flange (10); and the detection line (21) is provided in the connecting column (12).

8. An insulator detection device according to claim 7, characterized in that: A second spring (22) is provided inside the column (8) between the detection line (21) and the metal contact (23).

9. The insulator detection device according to claim 1, characterized in that: The clamping member (5) is provided with a bidirectional screw (15) inside one side of the fixing seat (1), and a knob member (4) is provided on the bidirectional screw (15). The knob member (4) is provided on one side of the upper surface of the fixing seat (1). The clamping member (5) is provided with a limit seat (6) distributed in an upper and lower manner outside the other side of the fixing seat (1). The limit seat (6) is connected to a limit block (7) at the bottom of the fixing seat (1), and the upper end of the limit block (7) is bolted to the limit seat (6).

10. A method for using an insulator detection device, the method being implemented by using the insulator detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The first step is to firstly install the insulator in the column (8) and the connecting flange (10) arranged on the inner side of the supporting shell (3) at the lower end of the fixing seat (1), and to make the metal contact (23) arranged inside the column (8) fit the installed insulator; In the second step, when the insulator is tested, the testing shell (2) provided at the upper end of the supporting shell (3) is used to pass through the MCU module (16) provided inside the testing shell (2), and the testing voltage generating unit (17) connected to the MCU module (16) generates an insulator test voltage at a high-voltage generator (25) connected to the testing voltage generating unit (17), and the testing voltage is applied to the insulator through a first resistor (24) provided in the testing voltage generating unit (17) and a detection line (21) on one side, through a second spring (22); In the third step, a detection and measuring unit (19) is connected in the detection shell (2) through the MCU module (16), and a second resistor (27) connected to the detection and measuring unit (19) is used to measure the detection voltage from the insulator. The detection voltage measured by the second resistor (27) is received by the signal buffer (28) connected to the detection and measuring unit (19), and the measured voltage is converted into a DC component and an AC component through the signal buffer (28) through a DC generator (29) and an AC generator (30) connected thereto, and a first detection signal of the detection voltage on the insulator is generated by the DC component, and a second detection signal of the detection voltage on the insulator is generated by the AC component, and the first detection signal and the second detection signal are applied to the signal measurement unit (31); In the fourth step, the measured first inspection signal and the second inspection signal are then received by the signal measuring unit (31), the insulation resistance and the shared voltage of the insulator are detected, and the state of the insulator is determined; In the fifth step, the test data of the test voltage generating unit (17) and the inspection and measurement unit (19) are processed by the MCU module (16) to determine the insulator detection result. The wireless communication unit (18) is provided to transmit the wireless signal so that the insulator detection result is transmitted to the monitoring unit (26) for monitoring, storage, analysis and processing of the data, thereby achieving the high voltage of the insulator when the insulator is energized, determining whether the energized insulator has a fault for any voltage, and expanding the range of measuring insulation resistance. By measuring the shared voltage and insulation resistance and considering the signal phase distortion, the faulty insulator is identified, thereby improving the convenience and reliability of the insulator detection work.

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