CN210199236U - Lightning-arrest needle state detecting system - Google Patents

Lightning-arrest needle state detecting system Download PDF

Info

Publication number
CN210199236U
CN210199236U CN201920882539.2U CN201920882539U CN210199236U CN 210199236 U CN210199236 U CN 210199236U CN 201920882539 U CN201920882539 U CN 201920882539U CN 210199236 U CN210199236 U CN 210199236U
Authority
CN
China
Prior art keywords
rod
lightning
lightning rod
metal detection
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920882539.2U
Other languages
Chinese (zh)
Inventor
Jun Wan
万军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Super Communications Co ltd
Original Assignee
Super Communications Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Super Communications Co ltd filed Critical Super Communications Co ltd
Priority to CN201920882539.2U priority Critical patent/CN210199236U/en
Application granted granted Critical
Publication of CN210199236U publication Critical patent/CN210199236U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Elimination Of Static Electricity (AREA)

Abstract

The utility model discloses a lightning-arrest needle attitude detecting system. The system comprises a lightning rod and a detection part, wherein the detection part comprises an insulating vertical rod, a first metal detection rod, a second metal detection rod and a detector, and the detector is respectively connected with the first metal detection rod and the second metal detection rod in an electric connection mode and is used for detecting target information between different parts of the lightning rod in different positions. The utility model provides a lightning rod attitude detecting system can detect the performance that the lightning rod is whole and each position, and simple structure, and is easy and simple to handle, and maneuverability is strong.

Description

Lightning-arrest needle state detecting system
Technical Field
The utility model belongs to the technical field of the lightning rod, concretely relates to lightning rod attitude detecting system.
Background
Thunder is a phenomenon of violent discharge of the charged cloud layer to ground buildings and the earth, and strong lightning current can cause serious damage to the buildings and equipment. Therefore, lightning rods are widely used in various high-rise buildings such as petrochemical warehouses, radio and television, gas stations, building buildings, beacons, communication base stations, weather stations, military bases, radar rooms, and bank buildings.
Because the lightning rod has the main function of guiding the lightning to go down to the ground, the lightning mainly enters the ground through the passage of a lightning receptor, a lightning rod body, a down conductor and a grounding device, and firstly, the passage needs to be kept smooth and has better conductivity.
Due to the above practical requirements, it is necessary to detect various performances of each part and each part on the lightning rod.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a: a lightning rod state detection system comprises a base, wherein an insulating vertical rod is arranged on the base, a first metal detection rod and a second metal detection rod are arranged on the insulating vertical rod, the insulating vertical rod sequentially penetrates through the first metal detection rod and the second metal detection rod, fastening knobs are respectively arranged at the joints of the first metal detection rod and the second metal detection rod and the insulating vertical rod, one ends, close to a lightning rod, of the first metal detection rod and one ends, close to the lightning rod, of the second metal detection rod are always kept in contact with the lightning rod when moving along a preset track, a detector is placed beside the base and is electrically connected with the first metal detection rod and the second metal detection rod through wires respectively, and the detector controls the on-off of the electrical connection between the first metal detection rod and the second metal detection rod, the first metal detection and the second metal detection rods are arranged at different positions so as to detect different target information of the lightning rod.
Preferably, the height of the insulating vertical rod is greater than or equal to the sum of the height of a lightning rod body in the lightning rod and the height of a lightning arrester, and the lightning arrester is arranged at the top end of the insulating vertical rod.
Preferably, when the first metal detection rod with the arrester on the lightning rod contacts the electricity intercommunication and the second metal detection rod with the earthing device of lightning rod bottom contacts the electricity intercommunication, the detector is right the lightning rod applys electric current or heat, wherein, the earthing device with downlead in the lightning rod is electric to be connected.
Preferably, the detector applies current, voltage or heat to the lightning rod when the first metal detection rod is in contact electrical communication with a lightning receptor on the lightning rod and the second metal detection rod is in contact electrical communication with a surface of a lightning rod body in the lightning rod.
Preferably, when the first metal detection rod is in contact electrical communication with a lightning rod body in the lightning rod and the second metal detection rod is in contact electrical communication with an earthing device on the lightning rod, the detector applies current, voltage or heat to the lightning rod, wherein the earthing device is electrically connected with a down conductor in the lightning rod.
Preferably, when the first metal detection rod is in contact and electrical communication with a lightning receptor on the lightning rod and the second metal detection rod is in contact and electrical communication with an earthing device electrically connected to the bottom of the lightning rod body in the lightning rod, the detector applies current, voltage or heat to the lightning rod.
Preferably, the detector applies current, voltage or heat to the lightning rod when the first metal detection rod is in contact electrical communication with the surface of the lightning rod body on the lightning rod and the second metal detection rod is in contact electrical communication with the ground connector electrically connected to the bottom of the lightning rod body in the lightning rod.
Preferably, the detector applies voltage or heat to the lightning rod when the first metal detection rod or the second metal detection rod is in contact with the lightning receptor in the lightning rod alone.
Preferably, the detector applies a voltage or heat to the lightning rod when the first metal detection rod or the second metal detection rod is in contact with the surface of the lightning rod body in the lightning rod alone.
The utility model provides a lightning rod attitude detecting system can detect the performance that the lightning rod is whole and each position, and simple structure, and is easy and simple to handle, and maneuverability is strong.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a lightning rod state detection system provided by the present invention;
fig. 2 is a schematic connection diagram of a first embodiment of a detection circuit of a lightning rod state detection system provided by the present invention;
fig. 3 is a schematic connection diagram of a second embodiment of a detection circuit of a lightning rod state detection system provided by the present invention;
fig. 4 is a schematic connection diagram of a third embodiment of a detection circuit of a lightning rod state detection system provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring first to fig. 1, it shows according to the utility model discloses a lightning rod attitude detecting system's schematic structure diagram, this system includes the detection portion, wherein, lightning rod 1 includes lightning rod body 2, lightning receptor 3 on lightning rod body 2 top, downlead 4 and the earthing device 5 of lightning rod body 2 bottom, and wherein, lightning receptor 3, lightning rod body 2, downlead 4 and earthing device 5 are connected in proper order electrically, form the circuit that a complete guide thunder and lightning went into ground down.
The detection part comprises a base 6, an insulating vertical rod 7 is vertically arranged on the base 6, and the insulating vertical rod 7 can be made of rubber or wood. Be provided with first metal detection pole 8 and second metal detection pole 9 on insulating pole setting 7, insulating pole setting 7 runs through first metal detection pole 8 and second metal detection pole 9 in proper order and first metal detection pole 8 and second metal detection pole 9 are provided with fastening knob 10 respectively with insulating pole setting 7 junction, and first metal detection pole 8 and second metal detection pole 9 are close to the one end of lightning rod 1 and are kept contacting with lightning rod 1 all the time when moving along predetermined orbit. Specifically, the first metal detection rod 8 and the second metal detection rod 9 can move up and down along the insulating vertical rod 7, so that one end of the first metal detection rod 8 and the second metal detection rod 9 close to the lightning rod 1 is in contact with different parts of the lightning receptor 3 or the lightning rod body 2 of the lightning rod 1. The ends of the first metal detecting rod 8 and the second metal detecting rod 9 may be provided with electric clamps respectively clamped at different positions on the lightning rod 1, so that the respective electric connections can be maintained well.
The detection part further comprises a detector 11 placed beside the base 6, the detector 11 is electrically connected with the first metal detection rod 8 and the second metal detection rod 9 through electric wires, and the target information of the lightning rod 1 is detected through on-off of the detector 11, which is electrically connected with the first metal detection rod 8 and the second metal detection rod 9, and different positions of the first metal detection rod 8 and the second metal detection rod 9. That is, the detector 11 respectively sends detection signals to different parts on the lightning rod 1 through the first metal detection rod 8 and the second metal detection rod 9, so as to collect and detect target information between the parts on the lightning rod 1. The detector 11 can adopt a zinc oxide arrester live tester with model number of HZ-20A.
The target information includes a voltage value, a current value, a resistance value or a joule heat value, that is, the voltage, the current, the resistance or the heat between different parts on the lightning rod 1 are detected respectively.
Obviously, in order to ensure smooth detection, the height of the insulating vertical rod 7 is greater than or equal to the sum of the height of the lightning rod body 2 in the lightning rod 1 and the height of the lightning receptor 3, and the lightning receptor 3 is arranged at the top end of the insulating vertical rod 7.
Hereinafter, the operation principle of the lightning rod state detection system according to the present invention will be described with reference to fig. 2 to 4.
As shown in fig. 2, it shows that the lightning rod state detection system according to the present invention is used to detect the voltage resistance and the voltage resistance state of the lightning rod 1. Specifically, the detector 11 can be used to sequentially apply voltages to different parts on the lightning rod 1, so as to detect the voltage resistance and the voltage withstand state of different parts of the lightning rod, i.e., adjust the contact and electrical communication conditions of different parts on the first metal detection rod 8 and the second metal detection rod 9 and the lightning rod 1, so as to realize the voltage withstand state detection of different parts, and the specific conditions are as follows:
(1) when the first metal detection rod 8 or the second metal detection rod 9 is respectively and independently contacted with the lightning receptor 3 or different parts of the lightning rod body 2 in sequence and is electrically communicated, the detector 11 applies voltage at the moment, and can respectively carry out voltage-resistant detection on the part of the lightning rod 1 between the lightning receptor 3 and the ground and between the lightning rod body 2 and the ground;
(2) when the second metal detection rod 9 is in contact with and is electrically communicated with the grounding device 5, and the first metal detection rod 8 can be respectively in contact with and is electrically communicated with the lightning arrester 3 or different parts of the lightning rod body 2 in sequence, the detector 11 applies voltage at the moment, and can respectively carry out voltage-resistant detection on the part between the lightning arrester 3 and the grounding device 5 and the part between the lightning rod body 2 and the grounding device 5;
(3) also can be alone lug connection have earthing device 5 bottom of lightning rod body 2, at this moment, when second metal test rod 9 contacted and electrically communicated with this earthing device 5, first metal test rod 8 contacted and electrically communicated with arrester 3 or lightning rod body 2 different parts in proper order respectively, detector 11 applyed voltage, can carry out withstand voltage to the part between arrester 3 to lightning rod body 2 surface and lightning rod body 2 surface part respectively.
As an embodiment, when voltage withstanding detection is required, the detector 11 may apply voltage to the to-be-detected portion and gradually increase the voltage value, the to-be-detected portion feeds back the voltage value to the detector 11 after receiving the voltage, and the detector 11 analyzes the feedback voltage value to determine the voltage withstanding condition of the to-be-detected portion. For example, the detector 11 can apply a voltage to the two ends of the lightning rod body 2 from 0 to 380V through the first metal detection rod 8 and the second metal detection rod 9, and since the lightning rod body 2 requires good withstand voltage performance, theoretically, the voltage applied by the lightning rod body 2 is almost the same as the voltage applied by the lightning rod body, and the detector 11 can receive a voltage value fed back by the lightning rod body 2, thereby determining whether the lightning rod body is withstand voltage. If the difference between the feedback voltage of the lightning rod body 2 and the applied voltage is not large in the process, the high voltage resistance of the lightning rod body can be judged; if the fluctuation is large and even reduced to 0, the lightning rod body 2 is melted when reaching a certain voltage value, and the voltage resistance is poor, so that prevention is carried out in advance.
Since the lightning rod 1 needs to withstand high voltage in the process of lightning strike, the above detection conditions can perform better voltage-withstanding detection on each part on the lightning rod 1.
As shown in fig. 3, it shows the detection of the conductive performance and conductive state of the lightning rod 1 by using the lightning rod state detection system according to the present invention. Specifically, can use detector 11 to exert the electric current in proper order to different positions on lightning rod 1 to electric conductive property and the conducting state to its different positions detect, also adjust the contact and the electricity circumstances of different positions on first metal measuring pole 8 and second metal measuring pole 9 and the lightning rod 1, detect with the connection performance state that realizes different positions, the particular case is as follows:
(1) when the second metal detection rod 9 is in contact with and is electrically communicated with the grounding device 5 at the bottom of the lightning rod 1, and the first metal detection rod 8 is respectively in contact with and is electrically communicated with different parts of the lightning receptor 3 or the lightning rod body 2 in sequence, the detector 11 applies current to respectively detect whether the part between the lightning receptor 3 and the grounding device 5 and the part between the lightning rod body 2 and the grounding device 5 are connected or disconnected;
(2) when the first metal detection rod 8 is in contact with and is electrically communicated with the lightning arrester 3, and the second metal detection rod 9 is in sequential contact with and is electrically communicated with different parts of the lightning rod body 2, the detector 11 applies current to detect the conductivity and the resistance of the lightning rod body 2;
(3) also can be connected with earthing device 5 alone in 2 bottoms of lightning rod body, at this moment, second metal test rod 9 contacts and electricity intercommunication with this earthing device 5, and first metal test rod 8 contacts and electricity intercommunication in proper order with arrester 3 or 2 different positions of lightning rod body respectively, and the detector 11 applys the electric current, can be to arrester 3 to 2 between the surface part and 2 surface parts of lightning rod body conduct and resistance value detection.
Because the lightning rod 1 needs to maintain a good path in the process of leading the lightning into the ground and the lightning rod body 2 needs to have good conductivity, the above detection conditions can detect whether the circuit between the parts on the lightning rod 1 is conducted or whether the conductivity is good.
As an embodiment, when the connection performance needs to be detected, the detector 11 may apply a current to the to-be-detected portion and gradually increase the current value, the to-be-detected portion feeds back the current value to the detector 11 after receiving the current, and the detector 11 analyzes the fed-back current value to determine the connection performance of the to-be-detected portion. For example, the detector 11 may gradually increase the current applied to the two ends of the lightning receptor 3 from 0 to 10A through the first metal detection rod 8 and the second metal detection rod 9, and since the lightning receptor 3 requires smooth connection performance, the current passing through the lightning receptor may gradually increase from 0 to 10A along with the current of the detector 11, and the detector 11 may receive the current value fed back by the lightning receptor 3, so as to determine whether the connection performance meets the requirement of the lightning receptor itself. If the difference between the feedback current of the lightning receptor 3 and the output current of the detector 11 is not large, the connection performance of the lightning receptor can be judged to meet the requirement; if the current value fluctuation is large during the period, it means that the lightning receptor 3 will have a fault such as an open circuit (for example, a melting open circuit) when reaching a certain current value, thereby preventing in advance.
As shown in fig. 4, it shows the heat resistance and the state of the lightning rod 1 detected by the lightning rod state detecting system according to the present invention. Specifically, can use detector 11 to apply the heat in proper order to different positions on lightning rod 1 to detect its heat resistance performance and state at different positions, also adjust the contact and the electricity circumstances of different positions on first metal measuring pole 8 and second metal measuring pole 9 and the lightning rod 1, detect with the heat resistance state that realizes different positions, the particular case is as follows:
(1) when the second metal detection rod 9 is in contact with and is electrically communicated with the grounding device 5 at the bottom of the lightning rod 1, and the first metal detection rod 8 is respectively in contact with and is electrically communicated with the lightning receptor 3 or different parts of the lightning rod body 2 in sequence, the detector 11 applies heat, and can respectively detect whether the part between the lightning receptor 3 and the grounding device 5 and the part between the lightning rod body 2 and the grounding device 5 is heat-resistant;
(2) when the first metal detection rod 8 is in contact with and is electrically communicated with the lightning arrester 3, and the second metal detection rod 9 is in contact with and is electrically communicated with different parts of the lightning rod body 2 in sequence, the detector 11 applies heat, and the heat resistance of the lightning rod body 2 can be detected;
(3) also can be connected with earthing device 5 alone in 2 bottoms of lightning rod body, at this moment, second metal test rod 9 contacts and electricity intercommunication with this earthing device 5, and first metal test rod 8 contacts and electricity intercommunication in proper order with arrester 3 or the different positions of lightning rod body 2 respectively, and the heat is applyed to detector 11, can carry out heat-resisting detection to part and lightning rod body 2 surface part between arrester 3 to lightning rod body 2 surfaces.
Because the lightning rod 1 can generate heat under the action of high voltage in the process of leading the lightning rod into the ground, and the lightning rod body 2 has good heat resistance, the detection conditions can detect whether the heat resistance of each part on the lightning rod 1 is good or not.
As an embodiment, when heat-resistant detection is required, the detector 11 may apply power to the to-be-detected portion and gradually increase the power value, the to-be-detected portion feeds back a current value to the detector 11 after receiving the power heat, and the detector 11 analyzes the fed-back current value to determine the heat-resistant condition of the to-be-detected portion. For example, the detector 11 can apply power to the two ends of the lightning rod body 2 from 0 to 380W gradually through the first metal detection rod 8 and the second metal detection rod 9, and since the lightning rod body 2 requires good heat resistance, the current theoretically keeps steadily increasing (can be considered as linear increasing) through the lightning rod body 2, and the detector 11 can receive the current value fed back by the lightning rod body 2, so as to determine whether the lightning rod body is heat-resistant. If the feedback current of the lightning rod body 2 is linearly increased, the heat resistance of the lightning rod body can be judged to be better; if there is a large fluctuation (e.g. the current value is suddenly increased) in the period, it indicates that the lightning rod body 2 is melted when reaching a certain heat value (i.e. the power applied to it), and the heat resistance is poor, so as to prevent in advance.
In the above embodiments, the voltage, the current, and the heat of the detector 11 may be simulated according to the actual lightning condition, or obtained by analyzing and calculating the experimental result after being reduced according to a certain proportion.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (9)

1. A lightning rod state detection system comprises a detection part and is characterized in that the detection part comprises a base (6), an insulating vertical rod (7) is arranged on the base (6), a first metal detection rod (8) and a second metal detection rod (9) are arranged on the insulating vertical rod (7), the insulating vertical rod (7) penetrates through the first metal detection rod (8) and the second metal detection rod (9) in sequence, fastening knobs (10) are respectively arranged at the joints of the first metal detection rod (8) and the second metal detection rod (9) and the insulating vertical rod (7), one ends, close to a lightning rod (1), of the first metal detection rod (8) and the second metal detection rod (9) are always in contact with the lightning rod (1) when moving along a preset track, and a detector (11) placed beside the base (6), the detector (11) respectively with the electric wire with first metal detection pole (8) with second metal detection pole (9) electricity is connected, the detector control its with break-make of electricity connection between first metal detection pole (8) and the second metal detection pole (9), first metal detection pole (8) with the difference realization of second metal detection pole (9) position is right the different target information of lightning rod (1) detects.
2. A lightning rod state detection system according to claim 1, characterized in that the height of the insulating vertical rod (7) is greater than or equal to the sum of the height of the lightning rod body (2) in the lightning rod (1) and the height of the lightning receptor (3), and the lightning receptor (3) is arranged on the top end of the insulating vertical rod (7).
3. A lightning rod state detection system according to claim 1, characterized in that the detector (11) applies current or heat to the lightning rod (1) when the first metal detection rod (8) is in electrical contact with the lightning receptor (3) on the lightning rod (1) and the second metal detection rod (9) is in electrical contact with the ground contact (5) at the bottom of the lightning rod (1), wherein the ground contact (5) is electrically connected with the down conductor (4) in the lightning rod (1).
4. A rod condition detecting system according to claim 1, characterized in that the detector (11) applies current, voltage or heat to the lightning rod (1) when the first metal detecting rod (8) is in electrical contact with the lightning receptor (3) on the lightning rod (1) and the second metal detecting rod (9) is in electrical contact with the surface of the lightning rod body (2) in the lightning rod (1).
5. A rod condition detecting system according to claim 1, characterized in that the detector (11) applies current, voltage or heat to the rod (1) when the first metal detecting rod (8) is in electrical contact with the rod body (2) in the rod (1) and the second metal detecting rod (9) is in electrical contact with the ground contact (5) on the rod (1), wherein the ground contact (5) is electrically connected with the down conductor (4) in the rod (1).
6. A lightning rod state detection system according to claim 1, characterized in that the detector (11) applies current, voltage or heat to the lightning rod (1) when the first metal detection rod (8) is in electrical contact with the lightning receptor (3) on the lightning rod (1) and the second metal detection rod (9) is in electrical contact with the ground contact (5) electrically connected at the bottom of the lightning rod body (2) in the lightning rod (1).
7. A rod condition detecting system according to claim 1, characterized in that the detector (11) applies current, voltage or heat to the rod (1) when the first metal detecting rod (8) is in electrical contact with the surface of the rod body (2) on the rod (1) and the second metal detecting rod (9) is in electrical contact with the ground contact (5) electrically connected to the bottom of the rod body (2) in the rod (1).
8. A lightning rod condition detecting system according to claim 1, characterized in that the detector (11) applies a voltage or heat to the lightning rod (1) when the first metal detecting rod (8) or the second metal detecting rod (9) alone is in contact with the lightning receptor (3) in the lightning rod (1).
9. A rod condition detecting system according to claim 1, characterized in that the detecting instrument (11) applies voltage or heat to the lightning rod (1) when the first metal detecting rod (8) or the second metal detecting rod (9) is solely in contact with the surface of the lightning rod body (2) in the lightning rod (1).
CN201920882539.2U 2019-06-13 2019-06-13 Lightning-arrest needle state detecting system Active CN210199236U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920882539.2U CN210199236U (en) 2019-06-13 2019-06-13 Lightning-arrest needle state detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920882539.2U CN210199236U (en) 2019-06-13 2019-06-13 Lightning-arrest needle state detecting system

Publications (1)

Publication Number Publication Date
CN210199236U true CN210199236U (en) 2020-03-27

Family

ID=69874408

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920882539.2U Active CN210199236U (en) 2019-06-13 2019-06-13 Lightning-arrest needle state detecting system

Country Status (1)

Country Link
CN (1) CN210199236U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117147575A (en) * 2023-08-07 2023-12-01 广州市建筑材料工业研究所有限公司 Unmanned aerial vehicle lightning protection detection method and system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117147575A (en) * 2023-08-07 2023-12-01 广州市建筑材料工业研究所有限公司 Unmanned aerial vehicle lightning protection detection method and system

Similar Documents

Publication Publication Date Title
Wagner et al. A new approach to the calculation or the lightning perrormance or transmission lines III-a simplified method: stroke to tower
CA2772219C (en) Method and apparatus for protecting power systems from extraordinary electromagnetic pulses
CN104914391A (en) Distribution network single-phase grounding fault simulation and positioning performance test platform and method
CN201408236Y (en) Power distribution network failure locating device
KR101328994B1 (en) Volume Electrical Resistivity Equipment for Cable in NPPs
CN101793943A (en) Intelligent type test system for service life of fuses
CN210199236U (en) Lightning-arrest needle state detecting system
Ahmadi et al. Enhancing the lightning performance of overhead transmission lines with optimal EGLA and downstream shield wire placement in mountainous areas: A complete study
CN100501431C (en) Method and set of testing equipment for assessment of electric parameters of lightning protection systems
CN110333382B (en) Three-layer sample structure and method for measuring ionization current characteristics of insulating material
Zhang et al. Progress in outdoor insulation research in China
CN106896302A (en) GIS device low-voltage conductor surface field strength meter and method
Barbosa et al. Measured and modeled horizontal electric field from rocket-triggered lightning
CN110579673B (en) Leakage current measurement and control system and method for insulating bucket arm vehicle
CN103487712A (en) Insulation test plate electrode
CN110673061A (en) Composite portable short circuit grounding wire with self-detection function
Zoro et al. Lightning protection system for high voltage transmission line in Indonesia
Gabler et al. Effect of the non-linear electric conductivity of mineral insulating oil on the dielectric strength at high DC voltage stress
Moraes et al. Insulator models of a hybrid overhead line
CN209486220U (en) A kind of cable conducting insulation testing system
CN108899869B (en) Fault arc protection circuit
Zoro et al. The performance of lightning protection system on 275 kV transmission lines Siguragura-Kualatanjung, North Sumatra, Indonesia
CN205656232U (en) Built on stilts circuit safety inspection device
Jing et al. Characteristics of Circulating Current in Main Feeding Cable armor of Common Ground Electrode
CN220961653U (en) High-voltage sensor

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant