499 results about "Electroscope" patented technology

The invention provides a 1000kV ultrahigh voltage alternating current non-contact-type electroscopy and an electroscope thereof, the hardware part of the electroscope consists of a signal acquisition module, a signal amplification module, a signal processing module, an analog-to-digital conversion and data processing module and an alarm module, the software part thereof is divided into five stages comprising self-check, pre-check, checkup, comparison and alarm; after the self-check is passed and time delay of 3 seconds elapses, a value, which is obtained by performing a data acquisition in 10KHz frequency on the electric field intensity of the working location, is regarded as a reference value for the electroscopy, the inventive reference value is an electric field value of the on-site working location, which effectively enhances the use range and accuracy of the electroscope; the invention implements the electroscopy in terms of field intensity curves of space electric fields and gives a reflection of the size of the electric field via the frequency velocity of acoustic, optical signals for the alarm, which effectually eradicates the interferences from adjacent charged equipment and settles the difficult problem of inferior repetitiveness and low accuracy of the electroscopy result which is resulted from the interference with the space field intensity by charged bodies of the adjacent measured equipment.

The invention relates to improvement of an electroscopic instrument for high voltage power supply lines of an electric system, in particular to a digital display high-voltage electroscope of a telescopic rod. The digital display high-voltage electroscope of the telescopic rod is provided with the telescopic rod, a probe hook and a series resistor and is characterized in that the other end of the series resistor extends out the pipe wall of an insulation rod A to be provided with a signal output end. A signal tester is arranged on an insulation rod B and is composed of a casing, a built-in circuit, a built-in power supply, a warning light, a grounded end, a power switch, an alarm, a time delay switch, a self-checking button, a digital display screen and a signal input end. The signal input end arranged in the signal tester is connected with the signal output end of the series resistor through a connection wire, and the grounded end arranged in the signal tester is grounded through a connection wire. The digital display high-voltage electroscope of the telescopic rod solves the problems of incapability in distinguishing of overhaul line sensing voltage and working voltage existing in electroscopic operation of the existing high-voltage electroscope and low electroscopic operation, and is mainly used for improvement of the existing high-voltage electroscope.

The invention provides a digital composite functional high-voltage electroscope used for power transmission line electrical inspection work, and belongs to the field of electrical tools and appliances. The digital composite functional high-voltage electroscope comprises an insulating rod, a detection instrument and a handheld rod. The insulating rod is composed of an insulating rod 3 and an insulating rod 4. The detection instrument is composed of a shell 7, a built-in circuit, a knob switch 8, a changeover switch 10, a magnetic field sensor, a sound alerter 16, a high-brightness LED indication lamp 9, a digital display screen 6, an adjustable knob 14 of a current-limiting resistor 2, a laser transmitter 16, a focus lens 17, a connector 13 and a laser switch 18. The handheld rod is composed of a handheld position-limiting ring 11, a storage battery 5 and a conductive film 12. Contact electrical inspection and remote noncontact electrical inspection can be performed simultaneously, induced voltage and working voltage of a maintenance line can be distinguished, and the voltage value of the line can be estimated and displayed. The digital composite functional high-voltage electroscope can be used for different voltage levels of line electrical inspection work via a range conversion knob. The electroscope has advantages of being reliable in electrical inspection, safe in operation, digitalized and multipurpose.

The invention discloses a non-contact electroscope and an electroscopy and belongs to the field of electrical equipment. The electroscope comprises an inducing module, a distance measurement module and a processing module. The inducing module is used for detecting electric field intensity of an object to be detected. The distance measurement module is used for detecting the distance between the electroscope and the object to be detected. The processing module is used for judging whether the object to be detected is electrified or not according to the detected distance between the electroscope and the object to be detected and the detected electric field intensity. Due to the fact that the non-contact electroscope judges whether the object to be detected is electrified or not according to the electric field intensity of the object to be detected, the distance between the electroscope and the object to be detected and the corresponding relation between the distance and the electric field intensity, the situation that due to influences of the ambient environment, detection accuracy is low is avoided, detection accuracy is improved, and potential safety hazards are eliminated.

The invention relates to a multifunctional and combined type intelligent insulating rod which is applied to the fields such as electric power system operation, examining, repairing and high voltage tests. A split type structure is adopted, and a combined type connector or an electroscope device is connected on an insulating rod body in a threaded mode. An intelligent type leakage current detecting device is connected at the tail end of the insulating rod body in a threaded mode. The multifunctional and combined type intelligent insulating rod has good basic functions such as insulating properties, mechanical properties and effective lengths of a traditional insulating rod or an electroscope and also has the advantages that functions are combined, the connector is in a combined type, conversion is convenient, electricity is checked at any time, alarm is given when leakage exceeds the limit and the multifunctional and combined type intelligent insulating rod is convenient to carry and the like. In the effective length of the insulating rod body, the insulating rod body has the function of an electroscope when an electricity checking device head is connected at the front end of the insulating rod body, and the insulating rod body has the function of the insulating rod when the combined type connector is connected at the front end of the insulating rod body. The insulating rod body has the function of intelligent voice alarm when a leakage current out of limit alarming device is connected at the rear end of the insulating rod body, and the insulating rod body has the advantages of being practical in structure, easy to operate, convenient to carry, fast in conversion, complete in effect and the like.

The invention discloses a grounding wire safety operation device in power construction, in order to solve the problems that the working flow is complex and a lead clip is difficult to suspend during the using process of a grounding wire. The grounding wire safety operation device in power construction comprises a grounding end clamping fitting, a lead clip, a loop chain clamping pin, a copper stranded wire, an operation rod, a cross-shaped connector and an electroscope, wherein the grounding end clamping fitting is connected with the lead clip through the copper stranded wire; a loop chain of the loop chain clamping pin is fixed at the tail part of the lead clip; and a clamping pin of the loop chain clamping pin is matched with the grounding end clamping fitting. The grounding wire safety operation device in power construction is characterized in that the lead clip is a firing-pin-type wire clip; a fire pin in the firing-pin-type wire clip is a folded-type firing pin; and the operation rod is assembled with the cross-shaped connector or the electroscope. The grounding wire safety operation device in power construction provided by the invention is suitable for the construction and overhauling of devices with voltage grade of 220kV and below, not only improves the suspending and dismounting operation efficiency with the unique structure, but also relives the labor intensity of working personnel, and guarantees the personal safety of the working personnel.

The invention discloses a non-contact high-voltage line electroscope, comprising a capacitance-type sensor, a signal processing module, a singlechip, an indication module, a voice module, a signal transmission module and an alarm. The capacitance-type sensor is used for monitoring a high-voltage line electric field, generating a voltage signal and transmitting the voltage signal to the signal processing module; the signal processing module converts the received voltage signal into a digital signal and transmits the digital signal to the singlechip; the singlechip processes the received digital signal, transmits a charged or uncharged state indication signal to the indication module, transmits a voice signal to the voice module, transmits an alarm signal to an alarm module and transmits a transmission signal to the signal transmission module; the indication module displays the charged or uncharged state through a light-emitting diode; the voice module gives voice prompt according to the voice signal; the signal transmission module transmits the received transmission signal to a console; the alarm gives an alarm after receiving the alarm signal. The non-contact high-voltage line electroscope uses the singlechip as a detection and control core, provides both vision and voice prompts when giving electricity checking caution, and has steady system signal and high reliability.

The invention relates to the technical field of electricity inspecting methods of high-voltage electroscopes, in particular to contact-type and non-contact-type sensors and an electricity inspecting method adopting the same. The electricity inspecting method of a high-voltage electroscope with the double sensors refers to a signal collecting module, a contact-type signal conditioning circuit, a non-contact-type signal conditioning circuit, a signal processing circuit, a sound-light alarm circuit, a Bluetooth transmission module and a mobile phone monitoring part; and two ways of signals outputby the contact-type and non-contact-type sensors are collected, and subjected to logical judgment. Whether the current alarm type is contact-type alarming or non-contact-type alarming is judged according to the frequencies of the alarming signals, the distance between the electroscope and to-be-inspected equipment is judged according to the different frequencies of the alarming signals, thus monitoring personnel learn the electricity inspecting result in real time, the credibility and reliability of the electricity inspecting result are greatly improved, the safety of electricity inspecting and maintenance personnel is improved, the accuracy of the electricity inspecting result is improved, the false alarm rate is decreased, and whether the to-be-detected equipment is electrified or not is effectively detected.

The invention relates to a non-contact type intelligent high-voltage electroscope capable of measuring a voltage value. The non-contact type intelligent high-voltage electroscope is used in power transmission line electrical inspection operation, and belongs to the field of electrical tools and appliances. The non-contact type intelligent high-voltage electroscope comprises a detection instrument, a handheld rod, a range finding system and a control module, wherein the detection instrument is composed of a shell body 1, a built-in circuit, a knob switch 2, an electromagnetic field sensor, a high-brightness LED indication lamp 4, a wireless transmitting unit 3 and the like; and the control module is composed of a single chip microcomputer control circuit, an LCD screen 6, a wireless receiving unit 7, switching buttons 10, an audible alarm 9 and high-brightness LED indication lamps 8. The non-contact type intelligent high-voltage electroscope is capable of non-contact electrical inspection at a long distance, can distinguish an induced voltage and a working voltage of a maintenance line, can calculate and display a voltage value of the line, and has advantages of being reliable in electrical inspection, safe in operation, digitalized and the like.

The invention relates to a safety tool of an electrical power system, in particular to a high-voltage ultra-small unmanned electroscope which comprises an unmanned machine, a strong electromagnetic field section shielding wire, an electricity verifying system, a camera system and a lead contactor. The electricity verifying system comprises an electricity verifying and emitting module and a receiving module. The electricity verifying and emitting module comprises an electricity verifying sensor, an amplifying circuit, a coding circuit, a wireless emitting circuit and a high-altitude signal displayer. The receiving module comprises a wireless receiving module, a decoding circuit, an unmanned machine ground controller and an information displayer. The lead contactor and the electricity verifying sensor are electrically connected. One side of the lower portion of the unmanned machine is fixedly provided with the camera system which comprises a shooting information sensor, a transmission circuit, a computer control system and an actuator. Electricity verifying is safe and reliable, labor of workers is greatly lowered, and operation is easy.

The invention provides an electroscopic device which comprises an electroscope, a fixation rod, a first telescopic rod and a second telescopic rod. The electroscope is arranged on the top of the second telescopic rod. Square bosses are arranged on the outer side walls of the fixation rod, the first telescopic rod and the second telescopic rod respectively. The second telescopic rod is sleeved in the first telescopic rod. The first telescopic rod is sleeved in the fixation rod. Racks are arranged on the outer sides of the square bosses of the first telescopic rod and the second telescopic rod respectively. Transmission devices are arranged on the top of the fixation rod and the first telescopic rod respectively. Blocking mechanisms corresponding to the square bosses are arranged on the top end of the fixation rod and the first telescopic rod respectively. According to the invention, automatic expansion and contraction of the first telescopic rod and the second telescopic rod is realized through the transmission devices; the working difficulty of an operator who performs high-altitude electrical inspection is simplified; through the blocking mechanisms, the first telescopic rod and the second telescopic rod can be fixed at any position; and the first telescopic rod and the second telescopic rod can be blocked to be prevented from falling off.

The invention provides a 800kV extra-high voltage direct-current non-contact multichannel distance measurement type electroscope comprising a signal amplification module, a signal processing module, an alarming module, an analog-to-digital conversion and data processing module and an LCD (liquid crystal display) display module, wherein the signal processing module comprises a rectification module, a filtering module, a signal acquisition module, a comparing control module and a distance measurement module, and the signal acquisition module comprises a stator and a rotor. The electricity testing value of the electroscope is the electric field value of the on-site working position, which effectively broadens the use range of the electroscope and improves the accuracy of the electroscope. The electroscope tests electricity by taking a distance value of a working position and a lead to be detected and a field intensity value correspondingly obtained according to the field intensity curve and the variation trend of a space electric field as alarming threshold values, and whether the lead to be detected is charged or not is reflected according to acoustic and light signals of alarming, thereby effectively eliminating the interference of adjacent charged equipment and solving the problems that the repeatability of an electricity testing result is poor and the accuracy is low because of the interference of the charged body of adjacent equipment to be detected on the space field intensity.

The invention relates to a method for changing a strain power pole of a linear rod with loads. The method comprises the following steps that 1) two electricians respectively wear insulation protectiveappliances, enter an insulation bucket, and hang a safety belt and a safety hook; 2) the two electricians adjust the insulation bucket to the lower side of an electrified wire crossarm, and use an electroscope to conduct live part verification on an insulator and the crossarm to confirm that there are no electric leakage phenomenons; 3) the second electrician conducts insulation shielding on allelectrified bodies and grounding bodies in a working range according to a shielding principle of 'from near to far, from bottom to top, and from the electrified bodies to the grounding bodies'; 4) thefirst electrician and a ground electrician cooperate to install a 10kV horizontal overhead wire lifter firmly and stably on a pole; the method is suitable for changing the strain power pole of the 10kV horizontal overhead line linear rod with the loads, can be applied in an electrified state on both insulation lines and bare wire lines, and can ensure air gaps between wires and the crossarm.

The invention relates to an extreme high voltage direct-current non-contact distance-measurement electricity-testing method which is divided into self-checking, data processing, comparison and acousto-optic alarming, and the method further comprises a distance-measurement and detecting phase, after self-checking is passed, detection is carried out; the detection adopts the induction principle of alternating induction method to test electricity, data acquisition of electric-field strength of the working position of an electroscope is carried out with a certain frequency, and the value after multiple tests is used as an alarming threshold value; and then distance measurement is carried out, the corresponding field intensity value is obtained from the distance value according to the field intensity and variation trend of a space electric field and is used as the electricity-testing value; the alarming threshold value and the electricity-testing value are compared, whether the tested object is electrified is reflected by acousto-optic signal alarming; the method adopts the distance-measurement mode to obtain the electricity-testing value, and the method is more accurate, and has low error and high precision compared with the existing electricity-testing value obtaining method, so as to effectively detect whether the tested lead wire is electrified.

The invention discloses a vehicle depot overhead contact system power outage and transmission process security supervision system and method. The vehicle depot overhead contact system power outage and transmission process security supervision system includes a system background host, an overhead contact system electrification monitoring device, a disconnecting switch position acquisition device, a computer key, an anti-misoperation locking device, an electroscope and a grounding line; the system background host is connected with the overhead contact system electrification monitoring device and the disconnecting switch position acquisition device through a wired network; and the system background host is connected with the computer key, the anti-misoperation locking device, the electroscope and the grounding line through a wireless network. According to the vehicle depot overhead contact system power outage and transmission process security supervision system provided by the invention, real-time monitoring of the electrification state of an overhead contact system can be realized through the overhead contact system electrification monitoring device; the state and operation information of related devices of all station tracks in a reservoir area are acquired, logic judgment and anti-misoperation locking are carried out in a unified manner after the state and operation information are integrated through the background, security supervision is performed on field work through system bus control and computer key operation terminals, and the security of maintenance work of the vehicle depot can be ensured.

The invention provides a full voltage class wireless electroscope. The full voltage class wireless electroscope comprises a three-dimensional electric field signal collecting module, a three-dimensional magnetic field collecting module, a first signal following module corresponding to the three-dimensional electric field signal collecting module, a second signal following module corresponding to the three-dimensional magnetic field signal collecting module, an electric field signal processing module, a magnetic field signal processing module, an ultraviolet impulse detecting module, an alarming module, a data processing module, a temperature and humidity detecting module, a clock module, a three-dimensional acceleration module and a display module. The full voltage level wireless electroscope is capable of conducting non-contact full voltage class electricity test, quickly judging whether an electric transmission line is powered or not, quickly locating a powered electric transmission line accurately, and effectively conducting the electricity test to an ultra-high voltage line and ultra-high voltage equipment through the number of ultraviolet impulses.

The invention belongs to the technical field of electric power, and particularly relates to an insulating operating rod for hot-line work such as overhauling and maintenance. The multifunctional insulating operating rod comprises an insulating rod, wherein an insulating brake pull rod head is fixed to the upper end of the insulating rod. The multifunctional insulating operating rod is characterized in that an electroscope is fixed to the upper end portion of the insulating rod. The multifunctional insulating operating rod further comprises a detection device, wherein the detection device is composed of a capturing circuit and a data receiving and displaying device. An output circuit of the electroscope is connected with the capturing circuit of the detection device, and signals output by the capturing circuit are transmitted to the data receiving and displaying device in a wireless mode. The multifunctional insulating operating rod is simple in structure, easy and convenient to operate, and high in safety and work efficiency and has multiple functions.

The invention discloses a high voltage electroscope based on an electro-optical effect. The high voltage electroscope comprises an electric field intensity sensing module, a signal transformation and pretreatment module, a data acquisition module, a data processing module, an alarm module, a power supply module and an L-GPS (Global Positioning System) positioning module. The high voltage electroscope based on the electro-optic effect has the advantages of calculating the high voltage power line source orientation of the sensor module, pointing out which conductors are live, and giving high voltage electrified alarm by detecting the electric field intensity of each point on reference relevant path of relevance zero point and high voltage detection points positioned by the L-GPS module at high precision; if the vector of each point is superimposed, calculating the voltage of a target live conductor relative to the reference zero to give the high voltage electrified level of the target conductor; detecting whether the conductor has alternating or direct current high voltage, high voltage target conductor orientation and the like, and having less interference and relative safety.

The invention discloses a full-loop alternating-current self-test high-voltage electroscope with a dead zone protection function. The high-voltage electroscope comprises a high-voltage electroscope body and a plurality of sections of telescopic insulation rods, wherein the high-voltage electroscope body comprises a high-voltage electroscope probe, a housing, a full-loop self-test indication lamp, a direct-current power set cabin, a voltage shortage indication lamp, a self-test button switch, a sound-light generator and a full-loop self-test electroscope circuit; a connecting part is arranged at one end of the lower end surface of the housing; the upper end parts of the plurality of telescopic insulation rod are in threaded connection with the connecting part. As a conventional full-loop self-test high-voltage electroscope is improved, the dead zone protection function unconfigured in a general full-loop self-test high-voltage electroscope is configured, and resistors and capacitors of an input loop are matched, the response time of the electroscope in a process of detecting a low voltage is shortened, the sensitivity of the full-loop self-test high-voltage electroscope is improved, and a safety operation can be reliably guaranteed.

The invention relates to a novel high-voltage electroscope for alternating currents and direct currents. The novel high-voltage electroscope is characterized by comprising a change-over switch, a detection probe, an insulating handle, an extension-type insulating rod and an acousto-optic display unit. The detection probe is arranged at the top end of the whole novel high-voltage electroscope, the lower portion of the detection probe is connected with the acousto-optic display unit, the extension-type insulating rod is arranged at the lower end of the acousto-optic display unit, the insulating handle is arranged at the lower end of the extension-type insulating rod, the change-over switch is arranged on the insulating handle and is connected with a change-over circuit through an internal connecting line, the acousto-optic display unit is controlled by an integrated circuit board, and the integrated circuit board is arranged in a box body on the upper portion of the extension-type insulating rod. According to the novel high-voltage electroscope for the alternating currents and the direct currents, when verification of a live part is conducted, the change-over switch on the end portion of the handle can be used for carrying out real-time switch to detect whether an alternating current transmission line and a direct current transmission line are charged, so that troubles that two types of electroscope devices need to be carried at the same time are eliminated, and the novel high-voltage electroscope for the alternating currents and the direct currents is convenient and fast to use.

The invention discloses a portable overhead insulated conductor grounding device. The grounding device is characterized by comprising a conductor chuck component, an insulating rod component, a ratchet handle component, an electroscope component and a grounding wire component. The grounding device achieves grounding of an overhead insulated conductor by a puncturing method on the premise of not damaging an insulating property of an insulation layer of the insulated conductor; the grounding device is portable; a grounding wire can be mounted in a position where the grounding wire is required tobe mounted according to a working place; the grounding device is flexible and convenient to carry, mount and dismount; the working efficiency is greatly improved; and the grounding device achieves mounting of the grounding wire in any working place, ensures the insulating property of the overhead insulated conductor, reduces potential safety hazards to persons and a power grid since a conductor is exposed and is not in an insulating state at a mounting position of a fixed grounding wire hanging loop and also lowers mounting cost of the fixed grounding wire hanging loop at the same time.

The invention discloses an insulating lifting device which relates to an insulating lifting device applied to high-voltage (not larger than 750kV) electric checking detection. The insulating lifting device comprises a base, a truss structure and an insulation operating rod, wherein the periphery of the base is provided with a guardrail, and the bottom of the base is provided with a caster wheel; three base sleeves are welded on the surface of the base; three groups of telescopic rods of the truss structure are inserted into the base sleeves and fixed by utilizing locking screws; the insulation operating rod is fixed to the center of the truss structure by a shaft sleeve and a shaft sleeve nut; and the telescopic rods of the truss structure have a sleeve telescopic structure, and the upper sections and the lower sections of the telescopic rods are positioned and connected by spring pins. The invention is simple and convenient for construction and can move, stretch and contract, lighten the working intensity of an operator to a greater extent and prevent the accident of flashover of the insulating lifting device near high-voltage electric equipment due to unstable electroscope handholding and deflection of an insulating rod.

The invention provides an electricity checking system and method based on an unmanned aerial vehicle. The electricity checking system based on the unmanned aerial vehicle comprises an analogue signal processing module, a digital signal processing module, a storage module, a communication module and a power supply module, wherein the analogue signal processing module and the communication module are in one-way connection with the digital signal processing module through I2C buses respectively, the digital signal processing module is in two-way connection with the communication module through an SPI bus, and the power supply module supplies power to the analogue signal processing module, the digital signal processing module, the storage module and the communication module. According to the electricity checking system and method based on the unmanned aerial vehicle, the electricity checking system is carried by the unmanned aerial vehicle, line information is acquired at a short range, and thus whether a line operates in an electrified mode or induction voltage exists on the line is judged; the problem that the requirement for electricity checking of a super-high voltage power transmission project can not be met through a contact electroscope is effectively solved, the problem that the requirement for electricity checking of double circuits on the same tower and cross lines can not be met through a ground non-contact electroscope is also solved, electricity checking reliability is greatly improved, and maintenance safety is guaranteed.

The invention discloses an electroscope, relates to the technical field of voltage detection, and aims to solve the problem in the existing electroscope that judgment made by electrical maintenance personnel during operation may be easily affected and normal operation cannot be conducted. The electroscope of the invention comprises a detection device and a display device in signal connection with the detection device. The detection device is used to detect the voltage on an object to be detected in real time and send a signal corresponding to the voltage to the display device. The display device is used to receive the signal, convert the signal into a decimal digit and display the decimal digit on a screen. The electroscope of the invention is mainly applied to high voltage detection. Whether the object to be detected is charged or not can be detected by the detection device, the specific value of the voltage on the object to be detected can be determined, and the specific voltage value can be displayed on the screen by the display device. Therefore, electrical maintenance personnel can accurately judge whether or not normal operation can be conducted in the current environment according to the specific voltage value displayed on the screen.

The invention provides a 1000kV extra-high voltage alternating-current non-contact multichannel distance measurement type electroscope comprising a signal amplification module, a signal processing module, an alarming module, an analog-to-digital conversion and data processing module and an LCD (liquid crystal display) display module, wherein the signal processing module comprises a rectification module, a filtering module, a signal acquisition module, a comparing control module and a distance measurement module, and the signal acquisition module comprises a parallel plate capacitor and a resistor R. The electroscope tests electricity by taking a distance value of a working position and a lead to be detected and a field intensity value correspondingly obtained according to the field intensity curve and the variation trend of a space electric field as alarming threshold values, and whether the lead to be detected is charged or not is reflected according to acoustic and light signals of alarming, thereby effectively eliminating the interference of adjacent charged equipment and solving the problems that the repeatability of an electricity testing result is poor and the accuracy is low because of the interference of the charged body of adjacent equipment to be detected on the space field intensity.

The invention discloses a high-voltage electroscope. The high-voltage electroscope comprises an electroscope body, the electroscope body is internally provided with a signal acquisition module, a signal processing module, a signal detection and analysis module and a power supply, wherein the signal acquisition module comprises a range finding apparatus and a UV sensor, and the UV sensor is provided with a capacitor, a driving circuit, a rectifier and a filtering instrument; the signal processing module comprises a digital and signal processing apparatus and a signal transmitter, and the digital and signal processing apparatus is provided with a signal converter, a memory, an alarm apparatus, a display apparatus and a humiture gatherer; and the signal detection and analysis module comprises an online detection apparatus and a remote transmission apparatus; and the electroscope body is provided with a switch button, an installation port and an operation handle. The high-voltage electroscope has the following advantage: the UV sensor can convert UV signals into measurable electric signals, can detect a circuit over a long distance, is free from contact with a high-voltage cable or live-line equipment, and is accurate in live part verification result.

The invention discloses an overhead line unmanned aerial vehicle electricity testing method and device. In the prior art, due to the fact that a line crosses river, valley and other areas, an operatorcannot reach the areas, or due to the fact that the line erection height is increased, an effective electricity testing method does not exist. A purpose of the invention is to solve the problems in the prior art. The invention provides an overhead line unmanned aerial vehicle electricity testing method and device. The device mainly comprises an unmanned aerial vehicle 1, an unmanned aerial vehicle remote controller 2, a handheld app terminal 3, a PC system 4, an electroscope 5 and the like. The electricity testing method mainly realizes accurate control of the flight direction (nose positioning algorithm) and flight distance of the unmanned aerial vehicle and safe distance maintenance in the electricity testing process through automatic distance measurement and calculation, and realizes an electricity testing function. According to the invention, the structure and the function of the unmanned aerial vehicle electricity testing device are constructed, the unmanned aerial vehicle safetydistance maintaining technology is overcome, and one-key operation of electricity testing operation is achieved.

The invention discloses a multifunctional ground wire of integrating electrical inspection and illumination. By the ground wire, the defects that an existing similar product is single in function and inconvenient to take-up and pay-off, needs additional illumination and the like are overcome. An illuminating lamp, an induction electroscope and a corresponding control circuit are integrated on an insulating rod body; and combination of electrical inspection, illumination and grounding functions is achieved by adding a winding roll, so that the number of take-up operating personnel and the labor intensity are reduced; the attention of a supervisor is not dispersed; and the ground wire is relatively safe. Electrical inspection and illumination are controlled by different switches; various functions are mutually independent and can be cooperatively used when necessary; and the ground wire is very convenient. The multifunctional ground wire of integrating electrical inspection and illumination is simple in structure, abundant in function and relatively good in application prospect; and the work efficiency and the safety of the operating personnel can be improved.

The invention discloses a full-voltage full-loop self-checking capacitive-type electroscope which comprises an electroscope circuit box, an insulating operation bar and a handle. The electroscope circuit box is provided with a checking probe and a display screen and comprises a micro-controller module and a self-checking circuit module. The electroscope circuit box is internally provided with a voltage-level conversion circuit box and a voice broadcasting module. An input end of the voltage-level conversion circuit box is connected with the checking probe while an output end of the same is connected with the micro-controller module. The input end of the voltage-level conversion circuit box is further connected with the self-checking circuit module through the checking probe, and the voice broadcasting module is connected with the micro-controller module. Therefore, full voltage switching can be realized through the full-voltage full-loop self-checking capacitive-type electroscope. Meanwhile, the electroscope can perform self-checking and broadcast voltage classes selected by operating personnel who are reminded to perform secondary confirmation, so that accident occurrence due to the fact that unmatched voltage classes are selected for checking electricity by the operating personnel can be effectively avoided.

The invention relates to a multi-voltage-stage high voltage electroscope. The electroscope comprises a hand-held high-voltage electroscope; the hand-held high-voltage electroscope consists of a handle, an electroscope circuit box body and an electrode contact which is arranged on the top of the handle; and a circuit display screen and a control switch are arranged on the electroscope circuit box body. The electroscope is characterized in that a voltage-stage switching circuit box body is also arranged on the front end of the electroscope circuit box body, the voltage-stage switching circuit box body consists of a first current-limiting resistor, a second current-limiting resistor, a third current-limiting resistor and a change-over switch, after the first current-limiting resistor, the second current-limiting resistor and the third current-limiting resistor are connected in parallel, one end of the parallel combination of the first current-limiting resistor, the second current-limiting resistor and the third current-limiting resistor is connected with the electrode contact by the change-over switch, and the other end of the parallel combination of the first current-limiting resistor, the second current-limiting resistor and the third current-limiting resistor is connected with the electroscope circuit box body. A switching circuit is additionally arranged on an original high voltage electroscope, so that measurement of different-voltage-stage circuits is completed by adjusting the values of resistance of current-limiting resistors, and the measurement work of different voltage stages can be completed by the change-over switch during the measurement.