Power transmission line electricity testing method and device

Abstract

The invention provides a power transmission line electricity testing method and device, and relates to the technical field of high-voltage electricity testing. The power transmission line electricity testing method comprises the following steps: step s100, using a carrier to carry a non-contact electricity testing module to approach or contact a power transmission line to be tested, and when the non-contact electricity testing module does not sense an electric field signal or does not trigger an electricity testing alarm, performing step s200; and s200, carrying the contact type electricity testing module to approach the to-be-tested power transmission line by using the carrier, so that a first conductor on the contact type electricity testing module is in contact with an insulator connected with the to-be-tested power transmission line, and a second conductor on the contact type electricity testing module is in contact with a power transmission tower connected with the insulator. The electricity testing method and device provided by the invention are low in labor intensity, high in operation efficiency and high in operation safety; and the influence of environmental factors on the power transmission line electricity testing detection result can be reduced, the probability of false alarm or missing alarm is reduced, and the safety of subsequent operation of operators is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage electrical testing, and in particular to a method and device for testing electrical power of a transmission line. Background Art

[0002] At present, the transmission line voltage testing technology on the market mainly includes two types of technology: contact and non-contact. The most widely used voltage tester is the contact voltage tester, that is, the voltage tester whose detection probe is in direct contact with the device to be tested. Contact voltage testing technology is a technology used to detect the presence of voltage in the power system. It is completed by directly contacting certain parts of the power system. This technology usually involves the use of special tools or instruments that can detect the presence of current and thus infer the presence of voltage.

[0003] Among them, the key principles of contact-type electrical detection technology include current detection, voltage detection, and capacitance detection. Current detection is one of the most basic principles, which relies on the resistance loss when current passes through a conductor. When the electroscope contacts a charged body, if there is current, the electroscope will detect the change in resistance loss, thereby knowing the voltage state of the charged body. Voltage detection determines the existence and magnitude of voltage by measuring the voltage difference across the conductor. Capacitance detection involves the capacitance effect between the charged body and the earth, and indirectly senses the existence of voltage by measuring changes in capacitance.

[0004] The application principle of the technical type of non-contact electrical testing is mainly based on two modes: electric field induction and electrostatic induction. In the electric field induction mode, the non-contact electrical tester determines whether the line is energized by sensing the electric field strength around the high-voltage transmission line. When the high-voltage line is energized, an electric field will be generated around it. The sensing element inside the electrical tester can sense the strength of this electric field and convert it into a recognizable signal, such as sound, light signal, etc., to indicate whether the line is energized. In the electrostatic induction mode, the non-contact electrical tester can also use the principle of electrostatic induction to detect voltage. When the electrical tester approaches a charged body, the charge on the charged body will induce a corresponding charge on the electrical tester. These induced charges will generate a weak current, which can be converted into a readable signal, such as the on and off of an indicator light or a sound prompt, through the circuit processing inside the electrical tester, to determine whether the line is energized.

[0005] The inventor has found that the existing electricity testing method has at least the following disadvantages: Disadvantages of contact-type electrical testing technology: Traditional contact-type electrical testing workers hold a retractable insulating protection rod, and the other end of the protection rod is a contact-type high-voltage probe, which directly contacts the part that needs to be tested. The entire electrical testing circuit is from high-voltage line -> contact-type electrical tester -> insulating rod -> human body -> earth to form a loop. If the high-voltage line is energized, the circuit will pass through the human body with microampere-level current, which is safe for the human body. The electrical tester will send out an audible and visual alarm signal, indicating that the detection wire is energized; when the wire to be tested is not energized, there is no current passing through the circuit, and the electrical tester will not send out an alarm signal, indicating that the line is not energized. At this time, maintenance and other work can ensure the personal safety of the staff. However, since it needs to directly touch the high voltage, when the insulation performance of the insulating rod decreases, the resistance of the entire circuit decreases, the circuit current increases, and there is a risk of electric shock to personnel. In addition, most contact-type electrical testers are of audible and visual alarm type and are located at the top of the insulating rod. The on-site environment may also cause operators to misjudge. In addition, as the operating voltage level of the power grid increases, transmission lines are erected on higher poles and towers. Workers need to climb up the poles and towers and hold longer testers at high altitudes to test the power, which poses a safety hazard of falling from heights and operational difficulties to operators.

[0006] Disadvantages of non-contact electrical detection technology: Compared with traditional contact testers, non-contact testers have higher safety and convenience. By carrying it in a carrier, the human body does not need to come into direct contact with the high-voltage line, thus reducing the risk of electric shock to the operator. At the same time, the non-contact tester can also quickly and accurately determine whether the line is energized, thereby improving work efficiency. Although the non-contact tester can sense changes in the electric field, due to the limitations of its working principle, the test wire senses the signal through the carrier and cannot form a loop with the high-voltage wire, so it is impossible to accurately determine whether the wire to be tested is energized, especially in the case of large electric field interference, especially near a live high-voltage line, the non-contact tester will mistakenly judge the electric field signal radiated by the adjacent live wire as the electric field signal radiated by the test wire, making it difficult to accurately judge the live state of the wire, resulting in misjudgment or missed judgment; at the same time, the performance of the non-contact tester is greatly affected by environmental factors. For example, in an environment with a strong electric field or obstructions, the tester may be interfered with, resulting in misjudgment or missed judgment. Non-contact electrometers mainly judge whether there is electricity by the intensity of the sensed electric field. If there are charged high-voltage wires near the wire, such as above, below, left and right, the electric field signals radiated by them will lead to misjudgment. When testing electricity in a non-contact manner through a vehicle, it is impossible to form an electric test loop, and it is impossible to directly sample the current in the wire to obtain an accurate judgment; in some cases, it may be necessary to use a longer sensing rod or adjust the position of the electrometer to meet different measurement needs. In addition, non-contact electrometers are usually used within a certain distance range, which reduces the accuracy of the test results while ensuring the safety of the operator. Due to the problems of non-contact electrometers being affected by the test distance and the environment, false alarms or missed alarms may sometimes occur, which may cause the operator to misjudge the circuit status and take wrong actions, resulting in danger and loss. Summary of the invention

[0007] The object of the present invention is to provide a transmission line electricity testing method and device, which can reduce the impact of environmental factors on the transmission line electricity testing results, reduce the probability of false alarms or missed alarms, and improve the safety of subsequent operations of operators.

[0008] The embodiment of the present invention is achieved as follows: In a first aspect, the present invention provides a method for testing power transmission lines, comprising the following steps: Step s100, using a carrier to carry a non-contact electric test module close to or in contact with the power transmission line to be tested, and when the non-contact electric test module does not sense current, proceed to step s200; Step s200, using a carrier to carry a contact type electrical test module close to the transmission line to be tested, so that the first conductor on the contact type electrical test module contacts the insulator connected to the transmission line to be tested, and the second conductor on the contact type electrical test module contacts the transmission tower connected to the insulator.

[0009] In an optional implementation, in the step s100, when the non-contact electrical testing module does not sense an electric field signal or trigger an electrical testing alarm, the non-contact electrical testing module transmits information of the electrical testing result to an alarm, and the alarm issues a first prompt.

[0010] Based on the above scheme, the alarm can be installed on the ground for use by ground operators. During the electrical testing process, when the non-contact electrical testing module is close to the transmission line to be tested, during the setting operation, the non-contact electrical testing module does not detect the electric field signal or does not trigger the electrical testing alarm. The alarm can be used to issue a first prompt for the operator's reference. The ground operators can obtain the test results in time, which is convenient for adjusting the electrical testing measures and adopting reasonable electrical testing strategies.

[0011] In an optional embodiment, in step s200, when the contact-type electrical test module carried by the carrier detects that the transmission line to be tested is energized, the contact-type electrical test module transmits the signal that the transmission line to be tested is energized to the alarm, and the alarm issues a second prompt.

[0012] Based on the above scheme, when the contact type electric test module obtains that the transmission line to be tested is energized during the electric test, the alarm sends a second prompt, and the operator can take corresponding measures in time according to the second prompt to improve the safety of the operation. It should be understood that the first prompt and the second prompt are set differently, for example, the first prompt and the second prompt are represented by different light effects, different sound effects can also be used as prompts, or light and sound prompts can be combined.

[0013] In an optional embodiment, in the step of making the first conductor on the contact-type electrical testing module contact an insulator connected to the transmission line to be tested, the position where the insulator contacts the first conductor is far away from the transmission tower.

[0014] Based on the above scheme, if a high voltage current flows through the transmission line, the first conductor is directly brought into contact with the side of the insulator close to the transmission tower. To avoid a large sampling current flowing through the contact-type electrical inspection module, in the present application, the first conductor is brought into contact with the position of the insulator string close to the transmission tower, for example, the first conductor is brought into contact with the first or second insulator in the insulator string close to the transmission tower end, rather than with the position of the insulator string close to the transmission line. This can avoid the situation where the sampling current is too large to damage the contact-type electrical inspection module, extend the service life of the non-contact electrical inspection module, improve the safety of electrical inspection, reduce risks, and also reduce the cost of electrical inspection.

[0015] In an optional embodiment, in the step of making the first conductor on the contact electrical testing module contact the insulator connected to the transmission line to be tested, the first conductor is used to successively contact at least one position of the insulator in the direction from the transmission line to be tested toward the transmission tower.

[0016] Based on the above scheme, during the process of adjusting the first conductor, the second conductor is always in contact with the transmission tower to achieve grounding, and the electricity testing operation is convenient and efficient.

[0017] Based on the above scheme, when the contact-type electrical detection module detects that the loop current (loop voltage) is greater than a threshold value Ith (Vth), it determines that the line is energized and sends the electrical detection result to the alarm for alarm.

[0018] In an optional embodiment, a carrier is used to carry an integrated non-contact electrical test module and a contact electrical test module to detect whether the transmission line to be tested is energized.

[0019] Based on the above solution, the non-contact electrical test module and the contact electrical test module are integrated together, with a compact structure and small size, which is convenient for installation on a vehicle, can simplify the electrical test steps, improve the electrical test efficiency, and reduce the electrical test cost.

[0020] In a second aspect, the present invention provides a transmission line electricity testing device, which is applicable to the transmission line electricity testing method described in any one of the aforementioned embodiments, and the device comprises: A carrier, a non-contact electricity testing module and a contact electricity testing module, wherein the non-contact electricity testing module and the contact electricity testing module are both installed on the carrier.

[0021] In an optional embodiment, the non-contact electrical detection module includes an electric field sensing module, and / or the contact electrical detection module includes a voltage sensor.

[0022] Based on the above scheme, the non-contact electricity testing module and the contact electricity testing module have simple structures, reliable operation, high accuracy of electricity testing results and low operating costs.

[0023] In an optional embodiment, the transmission line electrical testing device further includes an alarm, and the alarm is communicatively connected to the non-contact electrical testing module and the contact electrical testing module at the same time.

[0024] Based on the above scheme, during the electrical testing process, the prompts issued by the alarm can enable ground workers to know the electrical testing situation at the first time, so as to judge the energized condition of the transmission line to be tested, which is conducive to taking reasonable and compliant measures in time to improve the safety of operations.

[0025] The beneficial effects of the embodiments of the present invention are: In summary, the transmission line electricity testing method provided in this embodiment uses a carrier to carry a non-contact electricity testing module and a contact electricity testing module to perform electricity testing on the transmission line. There is no need for manual handheld electricity testing to directly test electricity, there is no risk of electric shock, and there is no need for operators to work at height, which reduces the risk of falling and improves the safety of electricity testing. At the same time, the transmission line electricity testing method of this embodiment adopts a dual-test design, that is, a combination of non-contact electricity testing and contact electricity testing. The electricity testing process is to first perform a non-contact electricity testing, and then perform a contact electricity testing when the non-contact electricity testing result is no electricity. The double electricity testing mutual verification method is used to detect whether the high-voltage line is energized, which greatly reduces the influence of environmental factors and equipment factors on the accuracy of the electricity testing results, improves the accuracy of the electricity testing results, and has a high reference value for the electricity testing results. At the same time, the electricity testing operation method provided in this embodiment has a high degree of intelligence, high efficiency, high safety, high ease of promotion, and low operating cost. It can monitor and locate the state of the electricity testing operation, and uniformly manage the electricity testing data, with high traceability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is an application diagram of the power transmission line electric testing device according to an embodiment of the present invention; Figure 2 Schematic diagram of the control flow of the transmission line electrical testing device according to an embodiment of the present invention.

[0028] Among them: 001-transmission line to be tested; 002-insulator; 003-transmission tower; 100-carrier; 200-non-contact electricity detection module; 210-electric field sensing module; 300-contact electricity detection module; 310-voltage sensor; 320-first conductor; 330-second conductor; 400-alarm; 410-wireless receiving module; 500-control mainboard; 510-power module; 520-wireless transmitting module; 530-positioning module. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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 part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the prior art, there are generally two ways to test electricity. One is that the operator holds a handheld tester in contact with the transmission line for testing electricity. This test method has high labor intensity for the operator, and the operator transmits current as a conductor, which poses a safety hazard. In addition, when the height of the overhead transmission line is high, the operator needs to climb the transmission tower 003 to perform high-altitude operations, which further increases the operational risk. The other is to use a drone carrying a sensing device to approach the transmission line for testing electricity. Due to the influence of the operating principle of the sensing device, when there are other electric fields or obstructions near the transmission line to be tested, it is easy to make misjudgments or missed judgments, which seriously affects the accuracy of the test results.

[0036] In view of this, the designer provides a method for testing electricity of transmission lines, which can not only reduce the impact of environmental factors on the accuracy of the test results, but also reduce labor intensity, improve work efficiency and improve work safety.

[0037] Please combine Figure 1-Figure 2 In this embodiment, the power transmission line testing method includes the following steps: Step s100, using the carrier 100 to carry the non-contact electric test module 200 close to or in contact with the power transmission line 001 to be tested, when the non-contact electric test module 200 does not sense the current, proceed to step s200; Step s200, using the carrier 100 to carry the contact type test module 300 close to the transmission line 001 to be tested, so that the first conductor 320 on the contact type test module 300 contacts the insulator 002 connected to the transmission line 001 to be tested, and the second conductor 330 on the contact type test module 300 contacts the transmission tower 003 connected to the insulator 002. In actual use, the standard operation is performed according to the steps of first contacting the second conductor 330 on the contact type test module 300 with the transmission tower 003 connected to the insulator 002, and then contacting the first conductor 320 on the contact type test module 300 with the insulator 002 connected to the transmission line 001 to be tested.

[0038] Based on the above, the power transmission line testing method provided in this embodiment has at least the following advantages: The carrier 100 is used to carry the non-contact electrical test module 200 and the contact electrical test module 300 to perform electrical test on the transmission line. There is no need for manual handheld electrical tester to directly test the electricity, there is no risk of electric shock, and there is no need for operators to work at height, which reduces the risk of falling and improves the safety of electrical test. At the same time, the transmission line electrical test method of this embodiment adopts a double test design, that is, a combination of non-contact electrical test and contact electrical test. The electrical test process is to first perform non-contact electrical test, and then perform contact electrical test when the non-contact electrical test result is no electricity. The double electrical test mutual verification method is used to detect whether the high-voltage line is energized, which greatly reduces the influence of environmental factors and equipment factors on the accuracy of the electrical test results, improves the accuracy of the electrical test results, and has a high reference value for the electrical test results. At the same time, the electrical test operation method provided by this embodiment has high intelligence, high efficiency, high safety, high ease of promotion, and low operating cost. It can monitor and locate the state of the electrical test operation, and uniformly manage the electrical test data, with high traceability.

[0039] It should be noted that the vehicle 100 may be, but is not limited to, an aircraft, for example, the vehicle 100 may be a drone, etc., which is easy to control. Obviously, in other embodiments, the vehicle may also be an engineering vehicle, etc.

[0040] The following is an example to illustrate the details of the power transmission line testing method according to the embodiment of the present application.

[0041] Please combine Figure 1-Figure 2In this embodiment, optionally, when the non-contact electricity test module 200 and the contact electricity test module 300 are carried by the carrier 100 for non-contact electricity test and contact electricity test respectively, the non-contact electricity test module 200 and the contact electricity test module 300 can be directly integrated together, so that the overall structure is compact and small in size, which is convenient for installation at the bottom of the drone, and it is convenient to carry the non-contact electricity test module 200 and the contact electricity test module 300 by the drone to test whether the transmission line 001 to be tested is energized. At the same time, in order to facilitate the ground operators to obtain the electricity test situation in time, the non-contact electricity test module 200 and the contact electricity test module 300 are used in conjunction with the alarm 400. The alarm 400 can issue corresponding prompts according to the electricity test situation. For example, when the non-contact electricity test module 200 obtains that there is no current passing through the transmission line 001 to be tested, the alarm 400 can issue a first prompt, thereby informing the ground operators that they can perform relevant operations of the contact electricity test module 300. When the contact-type electric test module 300 is in operation, if the transmission line 001 to be tested is energized, a second prompt is issued, and if the transmission line 001 to be tested is not energized, a third prompt is issued. It should be understood that when current passes through the transmission line 001 to be tested after the non-contact electric test module 200, a corresponding prompt can be issued, and the prompt issued in each case can be set to be different to facilitate the judgment of the operator. The prompt issued by the alarm 400 can be, but is not limited to, sound, light, or a combination of the two, etc., which is not specifically limited in this embodiment.

[0042] Optionally, after the non-contact electricity test module 200 and the contact electricity test module 300 cooperate, the two share the control mainboard 500, and the control mainboard 500 is electrically connected to the wireless transmission module 520, the positioning module 530 and the power module 510. The power module 510 can be a rechargeable battery and can be reused. The non-contact electricity test module 200 includes an electric field sensing module 210 electrically connected to the control mainboard 500, and the contact electricity test module 300 includes a voltage sensor 310 electrically connected to the control mainboard 500 and a first conductor 320 and a second conductor 330 electrically connected to the voltage sensor 310 at the same time. The electric field sensing module 210 and the voltage sensor 310 are both powered by the power module 510. The wireless transmission module 520 cooperates with the wireless receiving module 410 of the alarm 400 to realize signal transmission.

[0043] It should be noted that when the non-contact electric test module is used for electric test, the electric field sensing module 210 can generate a corresponding signal according to whether the transmission line 001 to be tested has current, and transmit the signal to the control mainboard 500, and then transmit it to the wireless receiving module 410 through the wireless transmitting module 520, and give a corresponding prompt through the alarm 400. The working principle of the electric field sensing module 210 is as follows: When a conductor is placed in an electric field, the charges inside the conductor will move due to the electric field force, thus generating an electric potential difference. When the antenna receives the 50HZ induced power frequency signal v, the interference signal is filtered out by the filter circuit, and then amplified and detected to become a DC voltage U. Refer to the formula: U=K·V, U represents the DC voltage, K represents the ratio constant, whose size is determined by the adjustable resistor; V represents the effective value corresponding to the induced power frequency signal v. The DC voltage U is proportional to the induced power frequency signal v. The closer the electroscope is to the high-voltage wire, the stronger the induced power frequency signal v, the higher the corresponding V value, and the higher the DC voltage U after amplification and conversion. Vt represents the critical alarm value of the voltage of the electric field sensing module 210. When the drone carrying the electroscope gets closer and closer to the high-voltage wire, the sensed v signal continues to increase, and the U value after amplification and conversion increases. When the U value is greater than or equal to the critical alarm value Vt, the circuit triggers the high-voltage live alarm and sends the wire live alarm signal to the alarm 400 through the wireless transmission module 520. The alarm 400 receives the wire live signal and takes corresponding prompt actions, such as emitting sound or light.

[0044] If the non-contact test module 200 does not detect that the transmission line 001 to be tested is energized, the contact test module 300 is used to perform further test operations. The first conductor 320 on the contact test module 300 is brought into contact with the insulator 002 connected to the transmission line 001 to be tested, and the position where the insulator 002 contacts the first conductor 320 is located in the middle of the insulator 002, close to the transmission tower 003. At the same time, the second conductor 330 on the contact test module 300 is also brought into contact with the transmission tower 003 to achieve grounding. At this time, a contact test circuit is formed from the transmission line 001 to be tested->insulator 002->first conductor 320->voltage sensor 310->second conductor 330->transmission tower 003->ground. If the transmission line 001 to be tested is energized and the voltage sensor 310 detects the loop current, it triggers the energized alarm of the transmission line 001 to be tested, and sends the energized alarm signal to the alarm 400 through the wireless transmission module 520. After receiving the energized signal, the alarm 400 performs corresponding prompt actions to prompt the operator.

[0045] It should be noted that when performing contact-type electrical inspection, if a high voltage current flows through the transmission line, the first conductor 320 is directly in contact with the side of the insulator 002 close to the transmission line 001. Since the current flowing through the transmission line is large, the contact-type electrical inspection module 300 is easily damaged when the large current flows through the contact-type electrical inspection module 300, which is low in safety. In the present application, by contacting the first conductor 320 with the position of the insulator 002 close to the transmission tower 003, rather than directly contacting the position of the insulator 002 close to the connection to the transmission line 001, it is possible to avoid the situation where the contact-type electrical inspection module 300 is damaged by excessive current, extend the service life of the non-contact electrical inspection module, improve the safety of electrical inspection, reduce risks, and also reduce the cost of electrical inspection.

[0046] Furthermore, when the contact-type test module 300 is used for the test, the first conductor 320 is used to contact with multiple different positions of the insulator 002 in the direction from the transmission tower 003 to the transmission line 001 to be tested. In order to prevent the transmission line 001 to be tested from having a large current passing through and damaging the contact-type test module 300, during the test, the first conductor 320 of the contact-type test module 300 contacts the part of the insulator 002 close to the transmission tower 003, and the insulation resistance of the entire test circuit is large, and the circuit current is small. During the test, the first conductor 320 of the contact-type test module 300 is gradually brought close to the transmission line 001. In addition to determining whether the transmission line carries high voltage, it can also detect whether there is residual voltage in the transmission line, thereby improving the accuracy and reliability of the test results.

[0047] It should be understood that in order to improve operating efficiency, in the step of using the first conductor 320 to successively contact multiple different positions of the insulator 002 in the direction from the transmission line 001 to be tested to the transmission tower 003, the second conductor 330 on the contact type electrical testing module 300 always maintains contact with the transmission tower 003.

[0048] It should be noted that the first conductor 320 can be in contact with the insulator 002 by means of a clip connection, and the second conductor 330 can be in contact with the transmission tower 003 by means of a hanging connection or a clip connection, which has good contact and is conducive to the electrical testing operation.

[0049] The power transmission line electrical testing method provided in this embodiment uses a carrier 100 to carry an electrical testing module to perform electrical testing operations. This method is safe and efficient, while also having the accuracy of traditional contact electrical testing, and has great market promotion value and application prospects.

[0050] Please combine Figure 1-Figure 2This embodiment also provides a transmission line electricity testing device, which is applicable to the transmission line electricity testing method provided in the above embodiment. The device includes a carrier 100, a non-contact electricity testing module 200, a contact electricity testing module 300 and an alarm 400. The non-contact electricity testing module 200 and the contact electricity testing module 300 are both installed on the carrier 100, and the non-contact electricity testing module 200 and the contact electricity testing module 300 are both connected to the alarm 400. During the electricity testing process, the prompt issued by the alarm 400 can allow ground operators to know the electricity testing situation in the first time, so as to judge the charged situation of the transmission line 001 to be tested, which is conducive to taking reasonable and compliant measures in time and improving the safety of the operation.

[0051] It should be noted that, in other embodiments, the electrical testing device may also integrate a 4G+Beidou / GPS positioning module 530 to add functions such as device control, status detection, and sensor data collection to match the scenario of 4G network and server network communication.

[0052] The power transmission line electrical testing device provided in this embodiment is easy to operate, has high safety, high operating efficiency, and high accuracy of electrical testing results.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for testing electricity in a transmission line, characterized in that: The steps include: Step s100, using a carrier (100) to carry a non-contact electrical testing module (200) close to or in contact with a transmission line (001) to be tested, and when the non-contact electrical testing module (200) does not sense an electric field signal or trigger an electrical testing alarm, proceeding to step s200; Step s200: using a carrier (100) to carry a contact-type electrical test module (300) close to a transmission line (001) to be tested, so that a first conductor (320) on the contact-type electrical test module (300) contacts an insulator string (002) connected to the transmission line (001) to be tested, and a second conductor (330) on the contact-type electrical test module (300) contacts a transmission tower (003) connected to the insulator string (002).

2. The method for testing electricity of a transmission line according to claim 1, characterized in that: In the step s100, when the non-contact electrical testing module (200) does not sense an electric field signal or trigger an electrical testing alarm, the non-contact electrical testing module (200) transmits electrical testing result information to the alarm (400), and the alarm (400) issues a first prompt.

3. The method for testing electricity of a transmission line according to claim 1, characterized in that: In step s200, when the contact-type electrical testing module (300) carried by the carrier (100) detects that the transmission line (001) to be tested is energized, the contact-type electrical testing module (300) transmits a signal indicating that the transmission line (001) to be tested is energized to the alarm (400), and the alarm (400) issues a second prompt.

4. The method for testing power transmission lines according to claim 1, characterized in that: In the step of making the first conductor (320) on the contact-type electrical testing module (300) contact an insulator string (002) connected to the transmission line (001) to be tested, the position of the insulator string (002) contacting the first conductor (320) is away from the transmission tower (003).

5. The method for testing electricity of a transmission line according to claim 1, characterized in that: In the step of making the first conductor (320) on the contact-type electrical testing module (300) contact an insulator string (002) connected to the transmission line (001) to be tested, the first conductor (320) is used to successively contact at least one position of the insulator string (002) in a direction from the transmission tower (003) to the transmission line (001) to be tested.

6. The method for testing electricity of a transmission line according to claim 5, characterized in that: In the step of using the first conductor (320) to successively contact at least one position of the insulator string (002) in the direction from the transmission line to be tested (001) to the transmission tower (003), the second conductor (330) on the contact-type electrical testing module (300) always maintains contact with the transmission tower (003).

7. The method for testing electricity of a transmission line according to claim 1, characterized in that: The carrier (100) is used to carry the non-contact electricity testing module (200) and the contact electricity testing module (300) integrated into one body to detect whether the transmission line (001) to be tested is energized.

8. A transmission line electrical testing device, characterized in that: The method for testing the power transmission line according to any one of claims 1 to 7 above comprises: A carrier (100), a non-contact type electricity testing module (200) and a contact type electricity testing module (300), wherein the non-contact type electricity testing module (200) and the contact type electricity testing module (300) are both installed on the carrier (100).

9. The transmission line electrical testing device according to claim 8, characterized in that: The non-contact type electrical detection module (200) is an electric field sensing module (210), and the contact type electrical detection module (300) is a voltage sensor (310).

10. The transmission line electrical testing device according to claim 8, characterized in that: The transmission line electricity testing device further comprises an alarm (400), wherein the alarm (400) is communicatively connected to both the non-contact electricity testing module (200) and the contact electricity testing module (300).

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