CN114166919A - Detection device for detecting defects of composite insulator in electrified manner - Google Patents
Detection device for detecting defects of composite insulator in electrified manner Download PDFInfo
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- CN114166919A CN114166919A CN202111524729.5A CN202111524729A CN114166919A CN 114166919 A CN114166919 A CN 114166919A CN 202111524729 A CN202111524729 A CN 202111524729A CN 114166919 A CN114166919 A CN 114166919A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/60—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables, e.g. electrographic flaw testing
- G01N27/61—Investigating the presence of flaws
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Abstract
The invention discloses a detection device for detecting defects of a composite insulator in a live way, which comprises: the electric field probe comprises a power supply, a signal processing module, four electric field probes and a signal amplifier, wherein the four electric field probes are distributed in a cross shape, each electric field probe is connected with the signal processing module through one signal amplifier, the signal processing module is connected with the power supply, and the signal processing module comprises a microprocessor and a data transparent transmission module. It discerns composite insulator defect through matrix electric field detection mode, device simple structure, it is light to use, it can cooperate unmanned aerial vehicle to carry and insulating bar to use, installs at unmanned aerial vehicle nacelle tip or insulating bar tip, passes through data with the testing result and passes through the module and send for ground end or insulating bar operation end, detects composite insulator defect under live-line operation's the condition to can be at early discovery problem insulator, avoid the emergence of latent fault hidden danger.
Description
Technical Field
The invention relates to the field of live-line detection, in particular to a detection device for detecting defects of a composite insulator in a live-line manner.
Background
Modern power transmission line and substation management pays great attention to the problem of composite insulator degradation, once the insulation performance of power equipment is reduced due to insulation degradation and overhauling, accidents such as insulation flashover and the like are possibly caused, and the potential safety hazard and economic loss caused by the accidents are immeasurable. Therefore, the good operation of the composite insulator is beneficial to ensuring the safety and stability of the whole power system. The method is combined with the era background of the current construction of 'extra-high voltage' engineering, 'West-east electricity transmission' engineering and a strong smart grid, the trend of large-scale popularization of the composite insulator in operation on a transmission line meets the evaluation requirement on the performance degradation and the degradation of the composite insulator in a complex environment, the enhancement of the composite insulator monitoring and degradation evaluation method and the elimination of all fault hidden dangers are the keys for guaranteeing the normal work of the composite insulator and the stable operation of a power system.
At present, when the power department carries out line inspection work, the defects of the composite insulator are detected in a charged mode mostly by adopting an infrared imaging method. When the composite insulator is seriously degraded and generates heat seriously, the infrared imaging has better effect. However, the infrared imaging method cannot find the defects of the composite insulator in the early stage, such as internal conduction, surface carbonization and the like, and has high requirements on the field test environment and harsh requirements on the conditions of background noise and weather. Besides the infrared imaging method, at present, no effective method and device can be used for defect inspection of the composite insulator.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a detection device for detecting the defects of a composite insulator in a live-line manner, which can be used in cooperation with an unmanned aerial vehicle mounting and an insulating operating rod, is arranged at the end part of a pod of the unmanned aerial vehicle or the end part of the insulating operating rod, sends the detection result to the ground end or the operating end of the insulating rod through a data transmission module, and detects the defects of the composite insulator under the live-line operation condition, so that the problem insulator can be found in an early stage, and the potential fault hidden danger can be avoided.
In order to solve the problems of the prior art, the invention discloses a detection device for detecting the defects of a composite insulator in a live-line manner, which comprises: the electric field probe comprises a power supply, a signal processing module, four electric field probes and a signal amplifier, wherein the four electric field probes are distributed in a cross shape, each electric field probe is connected with the signal processing module through one signal amplifier, the signal processing module is connected with the power supply, and the signal processing module comprises a microprocessor and a data transparent transmission module.
Furthermore, the device also comprises a shell and a baffle, wherein the signal processing module, the four electric field probes and the signal amplifier are all arranged in an inner cavity of the shell, and the outer part of the shell is connected with the baffle.
Furthermore, the baffle is in a cross shape, and the end part of the baffle is provided with a bending part.
Furthermore, the power supply comprises a power supply interface and a voltage-stabilizing inversion module, the power supply interface is arranged outside the shell, and the voltage-stabilizing inversion module is arranged in the inner cavity of the shell.
Further, the signal amplifier has a model number INA 333.
Further, the microprocessor is of the type ARM Coretex-M3.
Furthermore, the model of the data transparent transmission module is E22-400T 22S.
Further, the model of the voltage stabilizing inverter module is TPS 562200.
Further, still include the unmanned aerial vehicle that is used for mounting detection device.
Further, the device also comprises an insulating operating rod for mounting the detection device.
The invention has the following beneficial effects:
the device disclosed by the invention is used for identifying the defects of the composite insulator in a matrix electric field detection mode, is simple in structure and convenient to use, can be used in cooperation with the mounting of an unmanned aerial vehicle and an insulating operating rod, is arranged at the end part of a pod of the unmanned aerial vehicle or the end part of the insulating operating rod, and remotely sends the detection result, so that the internal defects of the composite insulator are detected under the condition of live operation, and the potential fault hidden danger is avoided.
Drawings
FIG. 1 is a schematic diagram of the circuit structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a schematic view of the present invention in use;
FIG. 5 is a schematic view of the present invention in use;
FIG. 6 is a schematic view of the unmanned aerial vehicle mounting of the present invention;
FIG. 7 is a schematic view of the mounting of the insulated operating rod according to the present invention.
Wherein: 1. an electric field probe; 2. a signal amplifier; 3. a microprocessor; 4. a data transparent transmission module; 5. a voltage stabilizing inversion module; 6. a heat-insulating inner shell; 11. a housing; 22. a baffle plate; 22-1, a bend; A. the detection device of the present invention; B. the pole tower cross arm.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the present invention provides a detection device for detecting defects of a composite insulator by electrification, comprising: the electric field probe comprises a power supply, a signal processing module, four electric field probes 1 and signal amplifiers 2, wherein the four electric field probes 1 are distributed in a cross shape, each electric field probe 1 is connected with the signal processing module through one signal amplifier 2, the signal processing module is connected with the power supply, and the signal processing module comprises a microprocessor 3 and a data transparent transmission module 4. The electric field probe 1 collects electric field intensity signals near the surface of the composite insulator, converts the electric field intensity signals into millivolt voltage signals, sends detection signals to the microprocessor 3 through the four signal amplifiers 2, runs corresponding recognition algorithms inside the microprocessor 3, and sends out defect detection results through the data transparent transmission module 4. The signal amplifier 2 is of type INA 333. The microprocessor 3 is of the type ARM Coretex-M3. The model number of the data transparent transmission module 4 is E22-400T 22S. The model of the voltage stabilizing inverter module 5 is TPS 562200.
If the electric field data measured by the four electric field probes are respectively E1, E2, E3 and E4, the core rod carbonization or internal conduction defect is considered to exist at the position corresponding to the detection device when the following formula is satisfied:
k is a proportionality coefficient, which may be 0.05.
Further, whether black ablation traces exist at the detection position of the invention can be observed through visible light images during field operation, and if the black ablation traces do not exist, the defect at the position can be considered as an internal conduction defect. Otherwise, the core rod is a core rod carbonization defect.
As shown in fig. 2-3, the signal processing module, the four electric field probes 1 and the signal amplifier 2 are all disposed in the inner cavity of the housing 11, the external connection baffle 22 of the housing 11, the power supply includes a power supply interface 33 and a voltage-stabilizing inverter module 5, the power supply interface 33 is disposed outside the housing 11, and the voltage-stabilizing inverter module 5 is disposed in the inner cavity of the housing 11. After the external power supply is connected to the power supply interface 33, the voltage-stabilizing inverter module 5 generates direct-current voltages of different magnitudes, so that the signal amplifier 2, the microprocessor 3 and the data transparent transmission module 4 work. The baffle 22 is used for ensuring that the detection device smoothly moves on the outer edge of the composite insulator shed without being clamped, and the baffle 22 is in a cross shape, and the end part of the baffle is provided with a bending part 22-1.
As shown in fig. 4-5, when the device is used for detecting the defects of the composite insulator in a live-line manner, the device only needs to be ensured to translate on the outer edge of the shed of the composite insulator. The four-array probe and the baffle of the device adopt a cross structure, and can meet the detection requirements of different string type composite insulators, such as a suspension string, a V-shaped string and the like. The distance between the umbrella skirts of the normal composite insulator is 3-5cm, so that the diameter of the four-array structure can be 5cm, and the defect condition of at least one section of core rod-umbrella skirt unit can be detected. The diameter of the baffle plate can be 8-12cm and is larger than that of the shell, because the umbrella skirt of the composite insulator is of a large umbrella skirt structure and a small umbrella skirt structure, the distance between the two large umbrellas can exceed 5cm, namely the size of the shell of the detection device, and the detection device can be clamped in the umbrella skirt under the condition.
As shown in fig. 6-7, the invention provides a detection device for detecting defects of a composite insulator in an electrified manner, which is used for identifying the defects of the composite insulator in a matrix electric field detection manner, has a simple structure and is light and convenient to use, can be used in cooperation with an unmanned aerial vehicle mounting and an insulating operating rod, is arranged at the end part of a pod of the unmanned aerial vehicle or the end part of the insulating operating rod, sends a detection result to a ground end or an insulating rod operating end through a data transmission module, and detects the defects of the composite insulator in the electrified operation condition, so that the problem insulator can be found in an early stage, and the potential fault hidden danger can be avoided.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention. In the drawings of the present invention, the filling pattern is only for distinguishing the layers, and is not limited to any other way.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a detection device for the electrified detection of composite insulator defect which characterized in that includes: the electric field probe comprises a power supply, a signal processing module, four electric field probes (1) and a signal amplifier (2), wherein the four electric field probes (1) are distributed in a cross shape, each electric field probe (1) is connected with the signal processing module through one signal amplifier (2), the signal processing module is connected with the power supply, and the signal processing module comprises a microprocessor (3) and a data transparent transmission module (4).
2. The device for detecting the defects of the composite insulator in a charged manner according to claim 1, wherein: the device is characterized by further comprising a shell (11) and a baffle (22), wherein the signal processing module, the four electric field probes (1) and the signal amplifier (2) are all arranged in an inner cavity of the shell (11), and the outer part of the shell (11) is connected with the baffle (22).
3. The detection device for the charged detection of the defects of the composite insulator according to claim 2, characterized in that: the baffle (22) is in a cross shape, and the end part of the baffle is provided with a bending part (22-1).
4. The detection device for the charged detection of the defects of the composite insulator according to claim 2, characterized in that: the power supply comprises a power supply interface (33) and a voltage-stabilizing inversion module (5), the power supply interface (33) is arranged outside the shell (11), and the voltage-stabilizing inversion module (5) is arranged in an inner cavity of the shell (11).
5. The device for detecting the defects of the composite insulator in a charged manner according to claim 1, wherein:
the signal amplifier (2) is of type INA 333.
6. The device for detecting the defects of the composite insulator in a charged manner according to claim 1, wherein:
the type of the microprocessor (3) is ARM Coretex-M3.
7. The device for detecting the defects of the composite insulator in a charged manner according to claim 1, wherein:
the model of the data transparent transmission module (4) is E22-400T 22S.
8. The device for detecting the defects of the composite insulator in a charged manner according to claim 4, wherein:
the model of the voltage-stabilizing inverter module (5) is TPS 562200.
9. The device for detecting defects of a composite insulator in a charged manner according to claims 1 to 8, wherein: still including being used for mounting detection device's unmanned aerial vehicle.
10. The device for detecting defects of a composite insulator in a charged manner according to claims 1 to 8, wherein: the device also comprises an insulating operating rod for mounting the detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524729.5A CN114166919A (en) | 2021-12-14 | 2021-12-14 | Detection device for detecting defects of composite insulator in electrified manner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524729.5A CN114166919A (en) | 2021-12-14 | 2021-12-14 | Detection device for detecting defects of composite insulator in electrified manner |
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| Publication Number | Publication Date |
|---|---|
| CN114166919A true CN114166919A (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111524729.5A Pending CN114166919A (en) | 2021-12-14 | 2021-12-14 | Detection device for detecting defects of composite insulator in electrified manner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115144435A (en) * | 2022-09-05 | 2022-10-04 | 江苏腾炎电气有限公司 | Insulating cylinder test is with test machine |
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2021
- 2021-12-14 CN CN202111524729.5A patent/CN114166919A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115144435A (en) * | 2022-09-05 | 2022-10-04 | 江苏腾炎电气有限公司 | Insulating cylinder test is with test machine |
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