583 results about "Porcelain insulator" patented technology

The invention provides a porcelain insulator pulse excitation detection method based on multi-mode coupling analysis, and belongs to the technical field of intelligent detection of power equipment, and the method comprises the following steps: applying a mechanical pulse excitation signal with an adjustable amplitude; collecting a vibration response signal and constructing a temperature-frequency compensation model; separating the vibration mode of each section: constructing an equivalent mass-rigidity-damping model of a plurality of sections of insulators; extracting instantaneous frequency from the separated multi-mode signal, capturing the non-stationary characteristic of the vibration signal, and capturing the local rigidity change; and calculating a crack quantitative index and outputting a diagnosis result, including establishing a crack depth-frequency offset mapping database, and acquiring an actual bending form of the vibration mode by identifying the position of the crack. The method has the advantages that the three-dimensional characteristic spectrum of the crack is constructed through joint analysis of multi-dimensional data such as the vibration mode, the instantaneous frequency and the curvature distribution, the limitation of traditional single parameter detection is broken through, and refined distinguishing of defect property cracks, aging and the like is achieved.

The invention discloses an antifouling self-cleaning line column type porcelain insulator and a detection method thereof, and relates to the field of insulators, a connecting bin is provided with a positioning rotating member, two ends of a movable sleeve block are provided with one-way drawing units connected with a piston rod, and a gas storage bin is provided with a rotating exhaust member. By arranging a position adjusting rotating part, a rotating exhaust part and a one-way pulling unit, when wind blows a fan blade plate, a reversing bevel gear can drive a transmission shaft to rotate clockwise so as to enable a reciprocating lead screw to rotate clockwise, and when a transmission gear ring rotates anticlockwise, the reversing bevel gear drives the transmission shaft to rotate clockwise so as to enable the reciprocating lead screw to rotate anticlockwise so as to enable the reciprocating lead screw to rotate anticlockwise. Therefore, when the second pawl rotates, the reciprocating screw rod rotates clockwise all the time, one-way rotation of the reciprocating screw rod can be achieved, then the rotating exhaust part and the one-way pulling unit are matched, the surface of the insulator body can be cleaned through airflow, and the self-cleaning effect is achieved.

The invention discloses a porcelain insulator defect detection system and a detection method thereof, and relates to the technical field of porcelain insulator defect detection. According to the porcelain insulator defect detection method, the mechanical strength, the electrical performance, the vibration response and the temperature response data of the porcelain insulator are obtained, all the data are comprehensively analyzed, all the defect evaluation indexes are obtained and compared with the preset defect evaluation interval, and defect marking processing is carried out. According to the invention, through comprehensive analysis of measurement data of mechanical strength, electrical performance, vibration response and temperature response, the health condition of the porcelain insulator can be evaluated more accurately, and compared with a traditional single detection method, the multi-dimensional evaluation can identify more types of defects, so that the detection accuracy is improved. According to the method, potential faults caused by tiny physical damage, electrical performance abnormity and temperature change are eliminated, and through comparative analysis of multiple indexes, the possibility of misjudgment and missed judgment is reduced, so that the detection process is more refined, and long-term stable operation of the porcelain insulator in a complex environment is guaranteed.

The invention belongs to the technical field of insulator detection equipment, particularly relates to a tension testing device for an electric porcelain insulator, and aims to solve the problem that only a radial tension test is carried out in the existing insulator tension test, and provides the following scheme: the tension testing device comprises a mainframe box, and limiting sliding rods are fixed on two sides of the mainframe box; a bottom tooth plate block is fixed to the bottom of the main machine box, a bottom tooth plate is fixed to the top of the bottom tooth plate block, an annular frame is arranged in the middle of the main machine box, and the annular frame, the limiting sliding rods on the two sides and the bottom tooth plate block at the bottom are installed in a sliding and sleeving mode. According to the invention, the locking claws lock the insulator body, in the testing process, the threaded sleeve driving motors at the two ends drive the threaded sleeve driving gears to rotate, then the tension lead screws at the two sides are driven to stretch and extrude the insulator body in the middle, and different tension tests are applied to the insulator body. The positions of the test end boxes on the two sides are adjusted to enable the insulator body to generate different bending states.

The invention discloses a porcelain insulator zero value detection method based on voltage distribution and a related device. The method comprises the following steps: acquiring voltage effective value data of each insulator to be detected; drawing a curve according to the acquired voltage data of each insulator to be detected by taking the serial number of the insulator as a horizontal coordinate and taking the effective value of the voltage as a vertical coordinate; and analyzing whether a zero-value insulator exists in the to-be-detected insulator string according to the waveform trend of the curve. The step-down circuit with the core device being the capacitor is arranged in front of the input end of the voltage detection device, and the capacitor is connected to the porcelain insulator to be detected in parallel, so that the input voltage is effectively reduced, and the voltage detection device is protected from being damaged by overhigh voltage; the effective value of the measured voltage is obtained, the actual effect of the measured voltage can be reflected more accurately, the calculation process is simplified, and the efficiency is improved.

The invention discloses a disc-shaped suspension type porcelain insulator processing device, and relates to the field of disc-shaped suspension type porcelain insulator processing, and the disc-shaped suspension type porcelain insulator processing device comprises a workbench, the top end of the workbench is rotatably connected with a supporting shaft, the outer side of the supporting shaft is fixedly provided with a first rotating disc and a second rotating disc, and the second rotating disc is arranged above the first rotating disc. A first electric push rod is fixed to the edge of the top end of the first rotating disc, a supporting disc is fixed to the top end of the first electric push rod, a fixing groove is formed in the edge of the second rotating disc, pug enters the position between the supporting disc and the upper mold, the pug can be stored in the forming groove, and a rough insulator-shaped pug blank is formed; due to the fact that the electric heating wires are arranged in the upper mold and the supporting disc, an insulator-shaped mud blank can be heated through a sealed environment, on one hand, the mud blank can be preliminarily dried through drying, an insulator can be shaped, and on the other hand, adhesion between the outer side of the mud blank and the upper mold and between the outer side of the mud blank and the supporting disc can be avoided through heating, so that mud blank demolding is easier.

The invention discloses a porcelain insulator nondestructive testing device and method based on chirp modulation photoacoustic spectroscopy. The device comprises a signal generator, a signal processing module and a signal processing module, the laser is connected with the signal generator; the power amplifier is connected with the laser; the laser collimator is connected with the power amplifier; and the signal collector collects the sound wave signals, converts the sound wave signals into electric signals, transmits the electric signals to the computer through a cable for data processing, obtains a spectrogram of the sound wave signals, and judges whether defects exist in the porcelain insulator or not according to the spectrogram. According to the porcelain insulator nondestructive testing device adopting chirp modulation and photoacoustic spectroscopy, characteristic frequency scanning is achieved through chirp modulation, a porcelain insulator acoustic signal spectrogram is obtained through the solid photoacoustic effect, non-power-cut nondestructive testing of porcelain insulators can be achieved, and the detection efficiency of porcelain insulator defects is greatly improved.

The invention relates to the technical field of defect detection, and discloses a device for detecting crack defects of a porcelain insulator, which solves the problems that a fixing clamp shields the porcelain insulator and the shielded part of the porcelain insulator needs to be secondarily detected in the later stage, and comprises an operation table, the bottom of the operation table is fixedly connected with a plurality of supporting legs, and the supporting legs are fixedly connected with the fixing clamp. A detection camera is arranged above the operation table, an adjusting unit used for adjusting the position of the detection camera is installed on the operation table, a plurality of rectangular frames are arranged above the operation table, and a rotary switching mechanism matched with the rectangular frames is installed on the operation table; two carrying seats are arranged in the rectangular frame, and accommodating grooves for accommodating the end parts of the porcelain insulators are respectively formed in one sides, close to each other, of the two adjacent carrying seats; and the shielded part of the porcelain insulator can be shot without secondary detection, so that the detection efficiency and convenience are improved.

The invention belongs to the technical field of porcelain insulator detection in a power system, and provides a porcelain insulator live detection method and system based on mechanical pulse excitation, and the method comprises the steps: S1, building an insulator detection result database through vibration response simulation; s2, detecting the insulator to be detected: performing the same excitation operation on the insulator to be detected, and detecting and extracting voiceprint feature data of the insulator to be detected; s3, contrastive analysis: inputting the extracted feature values into a pre-trained deep BP neural network model, adding at least one hidden layer to the model on the basis of a standard BP neural network, and improving the model by using a ReLU activation function and a dropout strategy; and outputting a detection result through the deep BP neural network model, and judging the state of the insulator. According to the scheme, on-line, rapid and accurate detection of the porcelain insulator is realized, meanwhile, the detection cost and time are reduced, the operation condition can be grasped in time, and power failure accidents are avoided.

The invention provides a porcelain insulator quality evaluation system based on multi-physics field coupling analysis, and relates to the technical field of rod-column porcelain insulator data processing.The porcelain insulator quality evaluation system adopts an electricity-heat-force multi-physics field joint simulation model to comprehensively reflect the heat accumulation and stress deformation effect caused by electric field concentration; an electric field concentration coefficient, a temperature rise trend coefficient and a stress gradient coefficient at a sharp point can be accurately captured, and degradation path prediction in a real operation environment is formed; according to the technology, the thread coupling abnormal index F alpha i of the ith rod-type column porcelain insulator is constructed, whether the thread structure has the risk of partial discharge, flashover or breakdown or not can be dynamically evaluated, and by introducing equivalent dielectric layer simulation of various environmental media, the simulation of the influence of various pollutants, attachments and climates on electric field concentration in reality is promoted; quantitative evaluation of the corona discharge risk of the sharp point is realized, and the reliability of the structural design of the insulator is promoted and improved.

The invention relates to a detection robot, and discloses an insulator detection robot and an operation method thereof. The insulator detection robot comprises a robot main body, wherein the robot main body comprises a bottom mounting seat and a metal clamping jaw which can be clamped at a metal connecting section of an insulator; a zero value detector and a quick short circuit device are further arranged on the bottom mounting base, the quick short circuit device comprises a double-swing-arm assembly and a single-swing-arm assembly which are arranged on the two sides of the bottom mounting base respectively, and each of the double-swing-arm assembly and the single-swing-arm assembly comprises a metal short circuit rod which can swing to make contact with the metal connecting section of the insulator. According to the invention, air breakdown discharge possibly generated between the robot and the steel foot and the steel cap of the to-be-tested porcelain insulator can be avoided, the robot is in an equipotential operation state in the operation process, no current introduced due to a voltage difference between the robot and the to-be-tested insulator passes through the robot, and the safety of the robot body is protected.

The invention provides a porcelain insulator crack defect identification method and system based on non-contact laser ultrasound, and the method comprises the steps: extracting a forking angle and a forking length of a porcelain insulator tree-shaped crack from a porcelain insulator crack network expansion speed multiple, and carrying out the time domain analysis of multiple peak values of an echo signal, obtaining a numerical sequence of peak amplitude changing along with time; according to the numerical value sequence of the peak amplitude changing along with time, the echo energy loss degree at the bifurcation point is identified, a tail end weak reflection signal of the tree-shaped structure is analyzed, and the tail end depth value of the porcelain insulator tree-shaped crack is determined; the obtained porcelain insulator tree-shaped crack tail end depth value is combined with the rate relation that the number of branches is increased along with time, and the critical moment when the porcelain insulator crack is converted from a linear state to a tree shape is judged; and generating an early warning signal for identifying the crack defect of the porcelain insulator based on non-contact laser ultrasound according to the critical moment when the crack of the porcelain insulator is transformed from the linear state to the tree state.

The invention discloses fine grinding equipment and a grinding method for porcelain insulators, and relates to the field of insulator production, the fine grinding equipment comprises a pug refining barrel and a grinding box, the bottom end of the grinding box communicates with the top end of the pug refining barrel, two grinding rollers are rotationally connected into the grinding box, the two grinding rollers are arranged in a mutually attached mode, and the two grinding rollers are arranged in a matched mode. A heating roller is rotatably connected to the interior of the pug refining barrel, a protruding end is fixed to the outer side of the heating roller, and the two grinding rollers rotate oppositely, so that falling pug is subjected to primary grinding, large particles in the pug are ground, bubbles in the pug are discharged through extrusion, extrusion and re-grinding are conducted in the pug refining barrel, and the pug refining efficiency is improved. During secondary grinding, the vacuum pump continuously extracts air, keeps a vacuum environment, absorbs bubbles and moisture in the pug and discharges the bubbles and moisture out of the pug cylinder, so that the fineness and the purity of the pug are improved, and meanwhile, through primary grinding, the working pressure of the pug cylinder can be reduced, and the service life of the pug cylinder can be prolonged.

The invention discloses a suspension type porcelain insulator detection method and equipment for detection of the method, and relates to the technical field of insulator detection, the suspension type porcelain insulator detection equipment comprises a mounting table, one end of a positioning block is provided with a distance adjusting traction piece connected with a movable guide block, and the other end of a tension sensor is provided with a bending detection piece connected with the distance adjusting traction piece. According to the suspension type porcelain insulator bending detection device, the bending detection part is arranged, the telescopic air cylinder is started, the positioning rod swings relative to the positioning block through extension of the inclined connecting rod, so that the suspension type porcelain insulator is bent, and when the telescopic air cylinder contracts, an aqueous solution in a second piston barrel can be extracted through cooperation of a first piston barrel and a first piston rod; the worm drives the worm gear to rotate, so that the mounting base can drive the suspension type porcelain insulator to rotate, the suspension type porcelain insulator is bent in different directions through repeated stretching and retracting of the telescopic air cylinder, and the accuracy of detection data is improved.

The invention discloses ceramic insulator visual defect detection equipment, and relates to the field of defect detection, the ceramic insulator visual defect detection equipment comprises a base and a threaded rod arranged in the left side of the base, the upper end of the threaded rod is provided with a handle, the surface of the threaded rod is provided with a lifting plate, and the right end of the lifting plate is provided with a detection camera. According to the ceramic insulator visual defect detection equipment, when the pressing plate reciprocates, the pressing plate reciprocates to drive the toothed plate to move left and right, when the toothed plate moves left and right, the toothed plate can drive the gear rod meshed with the toothed plate, and the gear rod rotates along with the reciprocating motion of the toothed plate; the input end of a power supply generator can be driven to rotate through a belt wheel and a second belt, at the moment, the power supply generator converts rotating force into electric power through itself, the electric power is transmitted to a light supplementing lamp through a connecting wire, the light supplementing lamp can be powered, workers do not need to manually replace a battery, and resource consumption can also be saved; the practicability of the device is improved.

The invention discloses a porcelain insulator zero value rapid detection method and device based on impulse current characteristics. The method comprises the steps that high-voltage pulses are applied to the two ends of a to-be-detected porcelain insulator; an impact current signal in an insulator loop is sensed by using a magnetic ring, and the impact current signal is converted into an integral voltage signal through an integral circuit; the integral voltage signal is compared with a preset threshold value, if the integral voltage signal is higher than the preset threshold value, it is judged that the insulator is a zero-value insulator with the internal breakdown defect, and the preset threshold value is predetermined according to the given multiple of the integral voltage measured by a normal insulator under the same condition. By detecting the integral voltage signal of the breakdown current, misjudgment and missed judgment caused by different surface states or internal defect types of the insulator are effectively avoided, the detection accuracy and reliability are improved, and a new effective means is provided for rapid detection of the porcelain insulator.

The invention discloses a porcelain insulator and assembly in full-sealed connection, and relates to the technical field of porcelain insulators, the porcelain insulator comprises an insulator main body, the top end of the insulator main body is clamped with a U-shaped clamp, the U-shaped clamp is matched with a clamping plate, and the U-shaped clamp is in threaded connection with a fastening nut for positioning the clamping plate; vertical plates are fixedly connected to the two sides of the top of the U-shaped clamp, a supporting plate with the adjustable angle is arranged between the two vertical plates, and a sealing plate is arranged on the top of the supporting plate in a matched mode. A first threaded rod is rotationally arranged at the bottom end of the supporting plate, a pressing block is rotationally connected to the clamping plate, and a second threaded rod is fixedly connected to the pressing block. According to the porcelain insulator and the assembly in full-sealed connection, the supporting plate, the threaded sleeve, the cross rod and the limiting strip are arranged, the supporting plate is installed in an assembling mode, the inclination angle of the supporting plate is flexibly adjusted, meanwhile, the anti-rotation resistance of the fastening nut and the threaded sleeve is improved, the risk of slight looseness caused by wind vibration is reduced, and the use stability of the porcelain insulator is guaranteed.

The invention relates to the technical field of insulator installation, in particular to an extra-high voltage porcelain insulator supporting auxiliary assembly and an installation method.The other end of a second pull rope pulls a third pull rope, and a rotating rod assembly comprises an intermediate shaft wound around the second pull rope and rubber rods symmetrically distributed at the two ends of the intermediate shaft; the rubber rod is provided with a first pull rope connected with the clamping hoop, and the rotating rod assembly is provided with a limiting assembly for limiting the rotating angle. Through the arrangement of the pull rod structure, supporting connection of the insulator is achieved, through connection of the rotating rod assembly to the insulator is matched, and therefore it is guaranteed that the insulator falls off from a telegraph pole; and meanwhile, three groups of pull rope structures and rotating rod assemblies are arranged to be matched to form a stable supporting structure, when single-side traction stretching occurs, the insulator can deviate from one side, and in the deviation process, the clamping fixation of the hoop to the cable is further increased, so that the power transmission cable is always bound on the insulator, and the power transmission cable is prevented from falling down.

The invention relates to the technical field of preparation of alumina ceramic materials, in particular to an alumina-based porcelain insulator porcelain body and a preparation method thereof. The alumina-based porcelain insulator porcelain body is prepared from interface repair type alumina and a sintering aid, the mass ratio of the interface repair type aluminum oxide to the sintering aid is 100: (5-10); the sintering aid is at least one of zirconium oxide, rare earth oxide, calcium oxide, magnesium oxide, silicon dioxide and manganese dioxide; the interface repair type aluminum oxide is interface metal atom repair type aluminum oxide, the interface metal atom repair type aluminum oxide comprises carrier aluminum oxide and metal atoms anchored at defect points of the carrier aluminum oxide in a monatomic form, and the metal atoms at least comprise Al. The alumina-based porcelain insulator porcelain body has the advantages of small dielectric constant and low dielectric loss, and meets the electrical performance requirements of extra-high voltage power transmission on insulators.

The invention discloses an independent unit structure of a high-voltage solid heat accumulator and a thermodynamic cycle system of the independent unit structure. An independent unit is composed of the solid heat accumulator, an electric heating body, a series connection conductive band, a parallel connection conductive band, an insulation foundation, a porcelain insulator, an equipment foundation, an upper heat preservation layer, a connection electrode, a null line electrode and an outer sleeve. Insulation porcelain bottles are uniformly arranged on an equipment foundation in an array mode, an insulation foundation is arranged on the upper portions of the insulation porcelain bottles, a solid heat accumulator is installed on the insulation foundation, and an upper heat preservation layer is arranged on the top of the solid heat accumulator. The two ends of the plurality of electric heating bodies are connected with the parallel conductive bands arranged on the vertical surfaces of the solid heat accumulator to form a parallel group, and the parallel group is connected with the series conductive bands arranged on the two corresponding vertical surfaces of the solid heat accumulator; according to an independent unit structure, the electric heating bodies form an angle connection form or a star connection form through a series connection conductive band and a parallel connection conductive band, and the connecting electrodes are externally connected to an A-phase power supply, a B-phase power supply and a C-phase power supply of the power supply switch through an external sleeve.

The invention relates to the field of insulators, in particular to an anti-pollution flashover ceramic insulator and a preparation method thereof. The glaze layer is prepared from the following raw materials in parts by weight: 40-50 parts of potassium feldspar, 10-15 parts of Suzhou clay, 10-15 parts of calcite, 15-20 parts of quartz, 1-5 parts of aluminum oxide, 1-5 parts of magnesium oxide and 5-10 parts of modified halloysite nanotubes; the ceramic insulator is characterized in that a modified halloysite nanotube is loaded with a dialkyl dithiocarbamic acid metal salt-amino triazine copolymer, the glaze layer is the key for long-term use of the ceramic insulator in a severe environment, and the ceramic insulator is endowed with certain antifouling performance and photocatalytic performance, so that the service life of the insulator is prolonged, the service life of the ceramic insulator is prolonged, and the service life of the ceramic insulator is prolonged. The safe and stable operation of the power transmission line is ensured, and the maintenance cost of line operation is reduced.

The invention relates to the technical field of power equipment, in particular to an umbrella-shaped hollow porcelain insulator which comprises a supporting shaft, an umbrella cap and a bottom plate are arranged at the upper end and the lower end of the supporting shaft respectively, a high-voltage wire is installed at the top of the umbrella cap, and a plurality of large umbrella skirts and a plurality of small umbrella skirts are arranged between the umbrella cap and the bottom plate; central cylinders are fixedly mounted in the middles of the large umbrella skirts and the small umbrella skirts, notch grooves are formed in the side faces of the central cylinders and form C-shaped structures, and upper clamping plates and lower clamping plates are fixed to the edges of the upper ends and the lower ends of the central cylinders respectively; the beneficial effects are that the plurality of large umbrella skirts and the plurality of small umbrella skirts are arranged on the outer side of the supporting shaft, the central cylinders are installed in the middle parts of the large umbrella skirts and the small umbrella skirts in a penetrating manner, and two adjacent central cylinders can be separated by sliding the umbrella skirts at any position along the length direction of the supporting shaft; according to the device, the umbrella skirts can be independently replaced, the replacement cost is low, and replacement is convenient.

The invention relates to the technical field of power electronics, and discloses a suspension type porcelain insulator and pillar type porcelain bushing internal defect identification method and system, and the method comprises the steps: collecting an ultrasonic detection signal of a suspension type porcelain insulator or pillar type porcelain bushing through an ultrasonic probe, and generating a signal sample set; carrying out filtering processing on the ultrasonic detection signals in the sample set by adopting a wavelet transform denoising algorithm; eMD empirical mode decomposition is carried out on the preprocessed ultrasonic detection signals, and feature parameters in the signals are extracted to form a feature matrix; constructing an integrated learning model through a weighted combination multilayer perceptron MLP and a random forest RF algorithm, and inputting the feature matrix into the integrated learning model for analysis; and identifying the internal defect type of the suspension type porcelain insulator or the pillar type porcelain sleeve according to an analysis result output by the integrated learning model. Effective identification of ultrasonic detection signals of internal defects of porcelain insulators or pillar type porcelain sleeves is realized through empirical mode decomposition and ensemble learning.

The invention belongs to the technical field of ceramic insulator processing, and discloses a lightning protection ceramic insulator product processing glaze spraying device and method.The lightning protection ceramic insulator product processing glaze spraying device comprises a workbench, the top of the workbench is fixedly connected with a mechanical arm glaze sprayer, one end of the workbench is fixedly connected with a square box, the top of the square box is fixedly connected with a fixed box, and the lightning protection ceramic insulator product processing glaze spraying device further comprises a glaze spraying device, a glaze spraying processing mechanism and a cross sleeve rod drive a lifting disc and the ceramic insulator to rotate, a mechanical arm glaze spraying device can conveniently conduct all-dimensional glaze spraying work on the outer wall of the ceramic insulator, in the process that two flexible sleeve plates extrude an inner cavity of the ceramic insulator, it can be ensured that the ceramic insulator stably rotates, and the glaze spraying efficiency is improved. And the glaze spraying accuracy of the mechanical arm glaze sprayer on the ceramic insulator is improved. In general, when glaze spraying work is carried out on more ceramic insulators at the same time, the rotation of the multiple ceramic insulators can be more stable due to the dead weight of the multiple ceramic insulators, and glaze spraying of the mechanical arm glaze spraying device on the outer walls of the ceramic insulators is more accurate.

The utility model relates to the technical field of electric porcelain, and discloses a firm electric porcelain insulator which comprises a base, the top end of the base is in threaded connection with a threaded rod, the exterior of the threaded rod is fixedly connected with an electric porcelain insulator, the threaded rod is in threaded sliding connection with a reinforcing plate and a fastener, the reinforcing plate is located below the electric porcelain insulator, and the fastener is located below the electric porcelain insulator. The fastening piece is located between the electric porcelain insulator and the reinforcing plate, the bottom end of the fastening piece abuts against the top end of the reinforcing plate, a bolt is arranged on the reinforcing plate in a penetrating mode, and the bolt is in threaded connection with the base. According to the technical scheme, the connection firmness of the base and the threaded rod can be improved through the reinforcing plate and the bolt, so that the installation firmness of the electric porcelain insulator is improved, the fastening piece slides on the threaded rod in a threaded mode, the fastening piece abuts against the top end of the reinforcing plate, the installation firmness can be further improved, and convenience and practicability are achieved.

The invention relates to the technical field of porcelain insulators, in particular to an electric porcelain insulator with a mounting and positioning structure, which comprises a porcelain insulator body, and an upper metal connecting piece is fixedly mounted at the upper end of the porcelain insulator body. The upper positioning seat and the metal cap are matched, so that the upper mounting and positioning structure can be automatically adjusted, corrected and reset after buffering along with the windage yaw of the wire after fixing the wire, and the lower metal connecting piece is mainly used for conveniently mounting the porcelain insulator body on a cross arm; the fixing bolt and the cross arm are locked after being fixedly installed through the arrangement of the insulation sealing block fixed to the fixing bolt, the fixing bolt is prevented from loosening, and a grounding lead-out fuse line and a fuse tube are arranged in the current protection fuse structure; a lead at the lower end of the grounding lead-out fuse wire is connected with a special grounding wire in a line transmission system, current on the surface of the lead is led out, and the problem of flashover caused by partial discharge is avoided.

The invention belongs to the technical field of porcelain insulator zero-value detection, and discloses a porcelain insulator zero-value detection device and a detection method thereof, and the device is used for portable rapid zero-value detection or zero-value detection for early defective insulators / partially degraded insulators. The portable rapid zero value detection device comprises an impulse voltage generator, an insulator unit and a measurement module, the output end of the impulse voltage generator is connected with the input end of the insulator unit, and the output end of the insulator unit is connected with the measurement module; the device for detecting the zero value of the early defective insulator / the partially degraded insulator comprises an impulse voltage generator, a Rogowski coil, an integrator and an oscilloscope, the Rogowski coil is arranged on a wire to be detected in a surrounding mode, the output end of the Rogowski coil is connected into the integrator, and the output end of the integrator is connected with the oscilloscope. The invention provides a porcelain insulator zero value detection method taking a high-frequency component as a criterion, and the method can achieve the quick and reliable detection of whether the value of the insulator is zero or not.

The present invention relates to the technical field of insulator forming and processing, specifically to a kind of electric porcelain insulator forming and processing equipment and method thereof, including a rotary forming machine, a waste blank conveyor is arranged on one side of the rotary forming machine, a rotary blank seat and a blank trimming knife group are arranged on the upper end of the rotary forming machine, and the blank trimming knife group is movably arranged on one side of the rotary blank seat. The rotary forming machine is combined with the waste blank conveyor, and the rotating blank is trimmed and the excess blank is output. The blank center trimming mechanism is designed, and a hollow outer cylinder and a hollow inner cylinder are added to the upper end of the center cone tool. The feeding component is matched to store and automatically output the waste gushing out of the center cone tool and the blank contacting the pressed blank. In addition, the provision of the rotary blank anti-falling component can ensure that the waste gushing upward will not fall again, prevent the center collapse of the electric porcelain insulator from being affected, and avoid secondary blockage of the center cone tool outlet.

The invention discloses a tension porcelain insulator detection device based on an unmanned aerial vehicle, and belongs to the field of power detection devices. The rotation detection assembly is arranged at the bottom of the unmanned aerial vehicle body, and the rotation detection assembly is mainly used for carrying out range rotation detection on the tension porcelain bottle; the rotation detection assembly comprises a first motor, a connecting rod and a second motor, the first motor is fixedly installed at the top of the unmanned aerial vehicle body, the output end of the first motor slidably penetrates through the top of the unmanned aerial vehicle body and extends to the lower portion, and the output end of the first motor is fixedly connected with a first rotating rod; through the effect of the rotary detection assembly, wide-angle coverage can be realized, the tension porcelain insulator can be detected in a range, the porcelain insulator does not need to be independently detected by an unmanned aerial vehicle during detection, collision possibly caused by frequent flight of the unmanned aerial vehicle is avoided, the endurance time is shortened, and the coverage range of detection operation is enlarged.

The invention belongs to the field of intelligent inspection of power equipment, and particularly relates to a transformer substation unmanned aerial vehicle dual-light inspection route planning method. According to the method, original laser point cloud of substation equipment is simplified, an equipment semantic lattice diagram containing high-altitude environment attributes and equipment semantic tags is constructed, dual-light inspection constraint parameters, namely infrared temperature precision and visible light resolution, are analyzed, and a semantic-environment dual-constraint initial route is generated; and flight and dual-light equipment parameters are dynamically adjusted in combination with a high-altitude environment, and routing inspection coverage completeness and data qualification are ensured through semantic weight driven dynamic obstacle avoidance and dual-light data quality closed-loop verification. According to the method, the route coverage is larger than or equal to 99%, the dual-light data qualification rate is larger than or equal to 95%, the redundant route mileage is reduced by 30%, the method is adaptive to a high-altitude transformer substation suspension type porcelain insulator and composite insulator dual-light inspection scene, and high-quality data support is provided for joint detection of insulator infrared thermal defects and visible light surface defects.