An insulation test electrode device for live working

Abstract

The invention provides an insulation test electrode device for live working, the device comprising a safety protection system and an insulation test electrode device, the insulation test electrode device comprising a test electrode, an insulating round tube, an insulating handle, and a connecting wire, one end of the insulating round tube is connected to the insulating handle, one end of the connecting wire is connected to the test electrode, and the other end passes through the insulating round tube and the insulating handle and is connected to an original plug-in head of an insulation resistance meter, the safety protection system comprises a parameter acquisition unit, a relay, an alarm, and a control unit, the parameter acquisition unit monitors the parameter status on the connecting wire in real time and is connected in series with the connecting wire, the relay is installed between the connecting wire and close to the test electrode, the alarm is arranged on the outside of the insulating round tube, and the parameter acquisition unit, the relay, and the alarm are all connected to the control unit signal.

Description

Technical Field

[0001] The invention relates to the technical field of insulation testing, and in particular to an insulation testing electrode device used for live working. Background Art

[0002] When live maintenance work is carried out on power transmission and distribution lines and equipment, insulating tools are often used for direct and indirect work. The safety of insulating tools and the level of insulation performance directly affect the safety of live workers and equipment on power transmission and distribution lines. Then it is necessary to conduct insulation tests on the insulating tools and personal protective equipment used on site. For a long time, workers who work on live transmission and distribution lines often use insulation resistance meters or insulation resistance testers of 2500V and above to test insulating tools. During the test, two people are required to cooperate, one person holds the meter, and the other wears insulating gloves to directly hold the two lead heads of the resistance meter on the insulating tools for testing. During the test, the distance between the two leads is often not accurately grasped, causing the reading error of the meter to be too large, resulting in misjudgment of the insulation resistance of the insulating tools, a long test time, and time-consuming and laborious testing for the testers. When using the connecting wire of the insulation resistance meter, the test lead of the connecting wire does not meet the requirement of 2cm electrode width, and it is difficult to maintain the requirement of 2cm between the poles with two test leads held in one hand, resulting in irregular testing, and the operator is prone to electric shock during the insulation test process, and the safety performance is poor. Summary of the invention

[0003] The object of the present invention is to provide an insulation testing electrode device for live working to solve the problems raised in the above background technology.

[0004] The present invention is achieved through the following technical solutions:

[0005] An insulation test electrode device for live working, the device comprising a safety protection system and an insulation test electrode device, the insulation test electrode device comprising a test electrode, an insulating round tube, an insulating handle, and a connecting wire, one end of the insulating round tube is connected to the insulating handle, one end of the connecting wire is connected to the test electrode, and the other end passes through the insulating round tube and the insulating handle and is connected to an original plug-in head of an insulation resistance meter, the safety protection system comprises a parameter acquisition unit, a relay, an alarm, and a control unit, the parameter acquisition unit monitors the parameter status on the connecting wire in real time and is connected in series with the connecting wire, the relay is installed between the connecting wire and close to the test electrode, the alarm is arranged on the outside of the insulating round tube, and the parameter acquisition unit, the relay, and the alarm are all connected to the control unit signal.

[0006] Furthermore, an insulating sheath is provided between the test electrode and the insulating round tube.

[0007] Furthermore, the test electrode is made of two 2 cm wide copper plates, and the width between the two copper plates is fixed at 2 cm.

[0008] Furthermore, the alarm specifically includes an audible and visual alarm.

[0009] Furthermore, the parameter acquisition unit specifically includes current parameter acquisition, voltage parameter acquisition, and temperature parameter acquisition.

[0010] Furthermore, the control unit specifically uses a convolutional neural network model for analysis and judgment, and the specific steps are as follows:

[0011] Step S1: acquiring the current, voltage and temperature data of the parameter acquisition unit in real time and using them as parameter inputs of the convolutional neural network model;

[0012] Step S2: The convolutional neural network model determines the dynamic thresholds of current, voltage and temperature through historical data analysis and according to actual conditions;

[0013] Step S3: judging whether the current, voltage and temperature exceed the threshold according to the dynamic threshold.

[0014] Step S4: According to the judgment result of step S3, it is divided into the following three cases:

[0015] a. If only the temperature exceeds the threshold, only the alarm will be sounded without disconnecting the relay;

[0016] b. If two or more of the current, voltage and temperature exceed the threshold at the same time, an alarm will be sounded and the relay will be disconnected;

[0017] c. If the current, voltage and temperature do not exceed the threshold, no action is taken.

[0018] Furthermore, the control unit also includes an insulation breakdown protection module, which is used to determine whether the monitoring and analysis current flows entirely through the entire connecting line.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides an insulation test electrode device for live working, which is used to perform insulation test on the electrode during live working, specifically, the test electrode is used to contact the insulation test point, and then the insulation resistance meter is connected through the connecting wire and the original plug-in plug of the insulation resistance meter to check the test result. The device is also provided with a safety protection system to improve the safety of the device, so as to prevent the operator from suffering electric shock during the insulation test process and ensure the life safety of the operator. The device can greatly improve the detection efficiency of insulation tools for live working, make the detection of insulation tools safer, faster and more standardized, and can be promoted to each live working team. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 An internal structure diagram of an insulation testing electrode device for live working provided by the present invention.

[0023] Figure 2 This is an external structural diagram of an insulation testing electrode device for live working provided by the present invention.

[0024] Figure 3 This is a structural diagram of the safety protection system provided by the present invention.

[0025] In the figure, 1 is the test electrode, 2 is the insulating round tube, 3 is the insulating handle, 4 is the connecting wire, 5 is the original plug-in head of the insulation resistance meter, 6 is the relay, 7 is the alarm, 8 is the parameter acquisition unit, 9 is the control unit, 10 is the insulation breakdown protection module, and 11 is the insulating sheath. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present invention more obvious, the exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention, and it should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the protection scope of the present invention.

[0027] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0028] It should be understood that the present invention can be implemented in different forms and should not be interpreted as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0029] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present invention. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0030] In order to fully understand the present invention, a detailed structure will be proposed in the following description to illustrate the technical solution proposed by the present invention. The optional embodiments of the present invention are described in detail as follows, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0031] See also Figures 1 to 3 , an insulation test electrode device for live working, the device includes a safety protection system, an insulation test electrode device, the insulation test electrode device includes a test electrode 1, an insulating round tube 2, an insulating handle 3, and a connecting wire 4, one end of the insulating round tube 2 is connected to the insulating handle 3, one end of the connecting wire 4 is connected to the test electrode 1, and the other end passes through the insulating round tube 2 and the insulating handle 3 and is connected to the original plug-in head 5 of the insulation resistance meter, the safety protection system includes a parameter acquisition unit 8, a relay 6, an alarm 7, and a control unit 9, the parameter acquisition unit 8 monitors the parameter status on the connecting wire 4 in real time and is connected in series with the connecting wire 4, the relay 6 is installed between the connecting wire 4 and the test electrode 1, the alarm 7 is arranged on the outside of the insulating round tube 2, and the parameter acquisition unit 8, relay 6, and alarm 7 are all connected to the control unit 9 signal.

[0032] Exemplarily, the present invention provides an insulation test electrode device for live working, which is used to perform insulation test on the electrode during live working, specifically, the test electrode 1 is used to contact the insulation test point, and then the insulation resistance meter is connected through the connecting line 4 and the original plug-in head 5 of the insulation resistance meter to view the test results. The device is also provided with a safety protection system to improve the safety of the device, so as to prevent the operators from suffering electric shock during the insulation test and ensure the life safety of the workers.

[0033] Furthermore, an insulating sheath 11 is provided between the test electrode 1 and the insulating round tube 2, and the insulating sheath 11 further improves the safety insulation performance of the device.

[0034] Furthermore, the test electrode 1 uses two 2 cm wide copper plates, and the width between the two copper plates is 2 cm to meet the requirement of an electrode width of 2 cm, making the detection of insulating tools safer, faster and more standardized.

[0035] Furthermore, the alarm 7 specifically includes an audible and visual alarm, which can alert other staff members quickly through sound and flash, and take corresponding measures in time.

[0036] Furthermore, the parameter acquisition unit 8 specifically includes current parameter acquisition, voltage parameter acquisition, and temperature parameter acquisition. The acquisition of current parameters, voltage parameters, and temperature parameters can effectively judge the insulation test.

[0037] Furthermore, the control unit 9 specifically uses a convolutional neural network model for analysis and judgment, and the specific steps are as follows:

[0038] Step S1: acquiring the current, voltage and temperature data of the parameter acquisition unit 8 in real time, and using them as parameter inputs of the convolutional neural network model;

[0039] Step S2: The convolutional neural network model determines the dynamic thresholds of current, voltage and temperature through historical data analysis and according to actual conditions;

[0040] Exemplarily, the specific process of the convolutional neural network model determining the dynamic thresholds of current, voltage and temperature is as follows:

[0041] 1. Based on the collection of relevant historical data, including time series data of current, voltage and temperature;

[0042] 2. Preprocess the collected data, including removing noise, filling missing values, normalizing, etc., which can improve the accuracy and stability of subsequent analysis;

[0043] 3. According to actual needs, useful features are extracted from the preprocessed data through wavelet transform, and statistical features such as the average value, variance, maximum value, minimum value, etc. of current, voltage, and temperature are calculated; then the future dynamic threshold is predicted through model learning and optimization.

[0044] Step S3: judging whether the current, voltage and temperature exceed the threshold according to the dynamic threshold.

[0045] Step S4: The control unit 9 divides the judgment result of step S3 into the following three situations:

[0046] a. If only the temperature exceeds the threshold, only an alarm is issued without disconnecting relay 6;

[0047] b. If two or more of the current, voltage and temperature exceed the threshold at the same time, an alarm is sounded and relay 6 is disconnected;

[0048] c. If the current, voltage and temperature do not exceed the threshold, no action is taken.

[0049] Furthermore, the control unit 9 also includes an insulation breakdown protection module 10 , and the insulation breakdown protection module 10 is used to determine whether the monitoring and analysis current flows entirely through the entire connecting line 4 .

[0050] For example, when the insulation material part of the insulation test device is insulated, the current on the connecting line 4 will form a loop from the human body and the test point. At this time, the current will flow through the human body, causing the human body to be attacked by a large current, endangering human life safety. Therefore, an insulation breakdown protection module 10 is set in the control unit 9 to determine whether the monitoring and analysis current flows through the entire connecting line 4; the specific process is as follows:

[0051] The insulation breakdown protection module 10 will first analyze the received current data to determine whether the current is evenly distributed on the entire connecting line 4. If the current is evenly distributed in the connecting line 4, it means that the current flows through the entire connecting line 4; if the current distribution is uneven, it means that the current only flows through part of the connecting line 4; at the same time, the insulation breakdown protection module 10 will set a threshold value to judge the distribution of the current. If the current distribution in a certain area on the connecting line 4 exceeds the set threshold value, it can be considered that the current only flows through part of the connecting line 4.

[0052] When the current flows through only part of the connecting line 4 , the control unit 9 immediately sends a signal to the relay 6 , causing the relay 6 to disconnect the current on the connecting line 4 and send a signal to the alarm 7 .

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An insulation test electrode device for live working, characterized in that: The device comprises a safety protection system and an insulation test electrode device, wherein the insulation test electrode device comprises a test electrode, an insulation round tube, an insulation handle, and a connecting wire, wherein one end of the insulation round tube is connected to the insulation handle, one end of the connecting wire is connected to the test electrode, and the other end passes through the insulation round tube and the insulation handle and is connected to the original plug-in head of the insulation resistance meter, the safety protection system comprises a parameter acquisition unit, a relay, an alarm, and a control unit, wherein the parameter acquisition unit monitors the parameter status on the connecting wire in real time and is connected in series with the connecting wire, the relay is installed between the connecting wire and the test electrode, the alarm is arranged outside the insulation round tube, and the parameter acquisition unit, the relay, and the alarm are all connected to the control unit signal; The control unit specifically uses a convolutional neural network model for analysis and judgment, and the specific steps are as follows: Step S1: acquiring the current, voltage and temperature data of the parameter acquisition unit in real time and using them as parameter inputs of the convolutional neural network model; Step S2: The convolutional neural network model determines the dynamic thresholds of current, voltage and temperature through historical data analysis and according to actual conditions; Step S3: judging whether the current, voltage and temperature exceed the threshold according to the dynamic threshold; Step S4: The control unit is divided into the following three situations according to the judgment result of step S3: a. If only the temperature exceeds the threshold, only the alarm will be sounded without disconnecting the relay; b. If two or more of the current, voltage and temperature exceed the threshold at the same time, an alarm will be sounded and the relay will be disconnected; c. If the current, voltage and temperature do not exceed the threshold, no action is taken; The control unit further comprises an insulation breakdown protection module, and the insulation breakdown protection module is used to determine whether the monitoring and analysis current flows entirely through the entire connection line.

2. The insulation test electrode device for live working according to claim 1, characterized in that: An insulating sheath is provided between the test electrode and the insulating round tube.

3. The insulation test electrode device for live working according to claim 1, characterized in that: The test electrodes are made of two 2-cm-wide copper plates, and the width between the two copper plates is 2 cm.

4. The insulation test electrode device for live working according to claim 3, characterized in that: The alarm specifically includes an audible and visual alarm.

5. The insulation test electrode device for live working according to claim 4, characterized in that: The parameter acquisition unit specifically includes current parameter acquisition, voltage parameter acquisition, and temperature parameter acquisition.

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