23 results about "Strain insulator" patented technology

The invention relates to the technical field of insulator maintenance, and particularly discloses a 500kV power transmission line tension-resistant single insulator maintenance labor-saving support which comprises a limit switch. The limiting switches are used for adjusting the distance between the fixing elements; the two groups of fixing elements are connected through the connecting element; wherein the fixing element is designed to be of an annular structure and is provided with four supporting legs, the inclined supporting legs are fixed to the side wall of the insulator, and the connecting element and the insulator are kept parallel to each other. The requirement that operators need to manually carry heavy insulators is greatly reduced, the distance between the fixing elements can be automatically adjusted according to the specific size of the insulators, stable installation is achieved by means of the flexible contact face provided by the air bag, and operation can be smoothly conducted even in the narrow or difficult-to-approach position.

The utility model discloses a ten-bundle conductor tension string suitable for ultrahigh altitude, which belongs to the technical field of tension strings and comprises two groups of tension string units. The tension string unit comprises two insulator strings which are arranged in parallel at an interval; one end of the insulator string is connected with an iron tower cross arm through the hanging point side fitting, and the other end of the insulator string is connected with a lead through the lead side fitting; the wire side fitting is provided with a shielding ring assembly. The wire side fitting is also provided with a grading ring which is wound on the tension string unit. According to the ten-bundle conductor strain insulator string suitable for the ultrahigh altitude, the structure can ensure that the electromagnetic environment and the air gap of a power transmission line do not exceed the limit under the condition of the ultrahigh altitude, the ecological environment protection requirement is met, and the engineering construction, the economic development and the ecological environment protection are organically combined.

The invention discloses a strain tower lightning arrester mounting structure adaptive to a coastal multi-thunder and typhoon area. The problems that a traditional lightning arrester cannot meet the protection requirement of a strong thunder area and is insufficient in wind load resistance and overturning resistance during mounting are solved. Wherein the lightning arrester comprises a lightning arrester body and a fixed base, the lightning arrester body is fixed on a strain tower body support through the fixed base, and a set distance is arranged between the lightning arrester body and a strain insulator; the fixed base is provided with a lightning arrester position adjusting structure which is used for adjusting the mounting position of the lightning arrester; the lightning arrester is reinforced by a double-insulator cable-stayed supporting assembly, the double-insulator cable-stayed supporting assembly comprises two cable-stayed insulators, the inclined lower ends of the cable-stayed insulators are connected with the lightning arrester, and the inclined upper ends of the cable-stayed insulators are connected with the tension tower body support.

This invention discloses a testing device for tension insulator strings in high-voltage transmission lines, belonging to the field of power line inspection technology. The device includes a C-shaped semi-enclosed support mechanism, a walking drive mechanism, a defect detection mechanism, and a radial adaptive locking adjustment mechanism. The C-shaped semi-enclosed support mechanism adopts an open frame that can be wrapped around the outside of the insulator string. A radial adaptive locking adjustment mechanism is installed at the opening, and an adaptive flexible fitting component is configured on the inner side to achieve assembly gap compensation and stable fitting. The walking drive mechanism adopts a tracked structure adapted to the insulator contour and is combined with a skirt limiting structure to achieve anti-slip and anti-detachment. The defect detection mechanism integrates visual inspection and electrical parameter detection components, enabling online identification of icing, surface damage, and zero / low-value insulation defects. This invention is easy to assemble, highly adaptable, and provides accurate detection, significantly improving inspection safety and automation levels. It is suitable for online automated inspection of tension insulator strings in high-voltage transmission lines.

The utility model provides an overhead line optical cable suspension strain string. The overhead line optical cable suspension strain string comprises a triangular plate installed on a tower column and strain clamps connected with the left side and the right side of the triangular plate respectively. Optical cables are wound on the opposite sides of the two strain clamps, a parallel groove clamp is connected between the two optical cables, and signal communication between the two optical cables is achieved through the parallel groove clamp; a lifting assembly is arranged on the tower column, the triangular plate is arranged on the lifting assembly, and the lifting assembly can make the triangular plate move up and down; the triangular plate and the triangular yoke plate are connected through the long connecting section or the short connecting section on the adjusting piece, so that the distance between the triangular plate and the triangular yoke plate can be adjusted, the sag of the optical cable can be quickly changed by adjusting the connecting part of the adjusting piece, different operation requirements can be met, the operation flexibility and adaptability are further improved, and the practicability is high. And damage caused by structural deformation or stress concentration can be avoided, the service life of the structure is prolonged, and the structure is prevented from being damaged.

The application specifically discloses a power transformation framework, comprising: support assemblies, at least two of which are arranged at intervals along a first direction, at least one of the support assemblies comprising a first support part and a second support part connected to each other; a crossbeam assembly erected between two adjacent support assemblies, the crossbeam assembly comprising a middle section and edge sections arranged at both ends of the middle section, the edge sections being composite insulating materials, and the middle section being a metal material; wherein the first support part is located between the crossbeam assembly and the second support part, and the first support part is a composite insulating material. The edge sections are composite insulating materials, have excellent electrical insulation performance, and can directly hang wires, thereby reducing the material usage of structures such as suspension insulators and support assemblies to a certain extent, and since the strain insulator string, the suspension insulator string and the jumper wire are saved, the problem of wind deflection discharge possibly existing in the power transformation framework is eliminated.

The invention relates to the technical field of electric power overhaul, in particular to a width-adjustable insulator cradle for replacing a glass insulator. Comprising two insulating rods which are parallel to each other, and further comprises a width adjusting module which is arranged between the two insulating rods, fixedly connected to each insulating rod and used for adjusting the relative distance between the two insulating rods; the limiting module is arranged at one ends of the two insulating rods and is used for limiting the strain insulator string to move along the insulator cradle; and the hoisting module is arranged at one ends, far away from the limiting module, of the two insulating rods and is used for hoisting the equipment to a high place for working after the equipment is adjusted on the ground. Technical transformation is carried out on the basis of an original fixed insulator cradle, an operator on a pole only needs to measure the diameter of a porcelain skirt of an insulator, ground matching personnel are informed, the width of the insulator cradle is adjusted by the ground matching personnel on the ground, and then the insulator cradle can be lifted to a station on the pole to carry out insulator replacement work.

The invention relates to a strain insulator string for a 1000kV extra-high voltage transformer substation suitable for a high altitude, and belongs to the technical field of insulator strings. Comprising an insulator assembly. The high-voltage side connecting fitting assembly is arranged at the lower end of the insulator assembly and is used for connecting a high-voltage wire; the grading ring is arranged at the joint of the lower end of the insulator assembly and the high-voltage side connecting fitting assembly, the grading ring is of a double-ring structure formed by coaxially arranging a large ring and a small ring, and the grading ring is located below the insulator assembly; and the shielding ring assembly is arranged below the grading ring and is connected to the high-voltage side connection fitting assembly, and the shielding ring assembly comprises two shielding rings which are symmetrically arranged on the two sides of the high-voltage side connection fitting assembly. The air gap discharge performance and the creeping discharge performance near the connection point are improved, the influence that the corona inception voltage is reduced due to elevation rise is counteracted, and therefore corona and noise are avoided.

This invention discloses a vibration and collision prevention device for tension insulator strings based on multi-degree-of-freedom adjustment. The device is installed between adjacent insulator strings and includes two sets of fixed bases, two sets of hinge assemblies, a buffer assembly, and two sets of limiting assemblies. The fixed bases are symmetrically fixed to the outer walls of adjacent tension insulator strings. The hinge assemblies are fixed to the opposing sides of the two fixed bases and consist of a series-arranged universal ball joint and a rotary hinge joint. The axial ends of the buffer assembly are respectively hinged to the two sets of hinge assemblies. The buffer assembly includes a stroke adjustment unit and a damping unit. The limiting assemblies are located at the axial ends of the buffer assembly, and their limiting stroke matches the extension stroke of the stroke adjustment unit. This device constructs a multi-degree-of-freedom hinge system through the hinge assemblies, preventing additional bending moments from occurring in the insulator strings under vibration conditions. Simultaneously, the buffer assemblies integrate spacing adjustment and damping vibration reduction functions, compressing the device volume, shortening the vibration transmission path, and effectively blocking vibration transmission.

The utility model belongs to high -voltage transmission line detection technical field, and disclose a kind of rotor type strain insulator deterioration detection device, including arched frame and the control system of installation in arched frame surface, travelling mechanism, detection mechanism and guiding mechanism, two groups of rotors of opposite rotation are rotatably installed in the four corners of arched frame, and binocular camera is installed in the middle of the four around arched frame;The detection mechanism includes steering gear installed in the bottom center of arched frame and adjusting frame connected with the output end of steering gear, and the front and rear ends of adjusting frame are connected with sleeve pipe.The above-mentioned scheme solves the problem that the existing device needs to be landed on insulator string during operation, but the surface of insulator string can be approximately regarded as a cylindrical surface, which is not suitable for the landing of the device, and the device has the risk of falling.

The utility model relates to the technical field of power construction, in particular to a lead backup protection device for live replacement of a 66kV power transmission line strain single-string insulator. The rear end of the wire clamp is movably connected with a joint rod with electrical insulation performance, the joint rod is movably connected with a pull rod with electrical insulation performance, the pull rod is movably connected with a tightener, the tightener is movably connected with an angle steel unilateral tightener, and the angle steel unilateral tightener is connected with angle steel on an iron tower cross arm. The angle steel single-side tightener is arranged, the requirement for tensile force generated by the cross arm single-side angle steel and a wire which are conducted through a pull rod and the tightener can be well met, and the produced angle steel single-side tightener has the advantages of being light in weight, high in strength, flexible to operate, easy to operate, long in service life and not prone to damage.

The invention provides a GIM model-based soft and hard collision batch verification method and system for a hanging point of a strain insulator string of a power transmission line and a storage medium, and relates to the technical field of hanging collision verification of the strain insulator string. The soft and hard collision batch verification method and system for the hanging point of the strain insulator string of the power transmission line in the GIM model can automatically and precisely carry out soft and hard batch collision inspection on the hanging point of the strain insulator string in the GIM model. Comprising the following steps: identifying all to-be-detected strain insulator string tower hanging points and corresponding hardware fitting components from a model; constructing a refined model library; completing preliminary import and placement of the refined model; precise alignment of the hardware fitting assembly and the refined tower hanging point model in spatial positions and postures is realized; driving the refined model to evolve from a static installation state to a dynamic space state under a specific operation condition; and in the dynamic space state, hard collision checking is performed on each checking unit. According to the invention, designers are liberated from tedious and repeated work, and the verification efficiency is improved in order of magnitude.

The application discloses a kind of installation structures of strain tower lightning arrester suitable for coastal multi-thunder typhoon area, solve the problem that traditional lightning arrester installation cannot meet the protection demand of strong thunder area and the problem of insufficient wind load resistance and overturning resistance capability.Therein, the lightning arrester includes a lightning arrester body and a fixed base, the lightning arrester body is fixed on the tower body support of strain tower through the fixed base, and is spaced apart from the strain insulator at a set distance;The fixed base is provided with a lightning arrester position adjusting structure for adjusting the installation position of the lightning arrester;The lightning arrester is reinforced by a double-insulator cable-stayed support assembly, the double-insulator cable-stayed support assembly includes two cable-stayed insulators, the oblique downward end of the cable-stayed insulator is connected with the lightning arrester, and the oblique upward end is connected with the tower body support of strain tower.

The utility model relates to bird thorn plate technical field, and disclose the bird thorn plate of strain insulator string, including two mounting plates, the inside hinged of two mounting plates is equipped with the scissor type expansion joint, the hinged point of scissor type expansion joint upper end all fixedly installed has the thorn needle, the both sides bottom of scissor type expansion joint all is equipped with the contraction guarantee structure, through setting contraction guarantee structure, when the scissor type expansion joint stretches or contracts, the guide rod of its both sides bottom will slide along the arc groove of fan -shaped board surface, and the guide gear moves along with the connecting plate, when the fan -shaped rack plate and guide gear align, the both sides are engaged, with the meshing drive of gear and rack, the movement track of scissor type expansion joint is accurately guided, through track constraint offsets external force influence, effectively reduces the deformation and deviation of scissor plate under the action of external force.

The invention discloses a six-joint three-hanging tension porcelain insulator zero value detection device, and belongs to the technical field of extra-high voltage power transmission. A suspension rack, a wireless communication module, a camera module, a probe group and an identification module are arranged on a fixed frame, and unmanned aerial vehicle hoisting is realized through the suspension rack, so that manual high-altitude climbing operation is not needed, and the detection efficiency is improved. The insulator zero-value detection can be carried out by moving the detection module, the high-altitude operation risk is avoided, the labor intensity of personnel is greatly reduced, the zero-value detection work can be carried out when the line is powered off and electrified, and the unmanned aerial vehicle is adopted for hoisting detection, so that the speed and efficiency of reaching the detection position can be greatly improved, and the preparation time is shortened; the device can quickly move on a strain insulator string, realizes intelligent position determination and automatic detection through the probe group, the camera and the identification module, performs data transmission through the wireless communication module, performs master control through the control module, and improves the detection efficiency and reliability.

This utility model discloses a potential tool for tension insulator strings, comprising an insulating crossbar. One end of the insulating crossbar is rotatably connected to an insulating side bar A, and the other end of the insulating crossbar is rotatably connected to an insulating side bar B. Its structure is reasonable. This utility model connects the crossbar side clamp to the insulating crossbar via a rotatable connection from the insulating side bar A, and fixes it at an angle with bolts. The crossbar side clamp is then inserted into the corresponding position on the tower. Using adjustable-length clamps and nuts, it is tightened for fixation. The adjustable-length clamps are applicable to different types of towers, minimizing the possibility of incompatibility and installation failure due to incompatibility with different tower types. This effectively improves the applicability of the potential tool for tension insulator strings.

The invention relates to the technical field of power transmission line live-line maintenance, and discloses a wire side tool for live-line replacement of a strain insulator string, which comprises a support frame, a yoke plate and a lever, connecting assemblies are symmetrically mounted on the left and right sides of the front end of the support frame, the support frame and the yoke plate are fixedly connected through the connecting assemblies, and a hoisting assembly is mounted at the top of the concave surface of the support frame. The lever is installed above the supporting frame through the hoisting assembly. Fixing holes are formed in four corners of the upper end of the yoke plate, a pair of through holes are formed in the front side and the rear side of the upper end of the yoke plate, positioning grooves are formed in the front end face and the rear end face of the yoke plate in a bilateral symmetry mode, and the through holes are located between the positioning grooves in the rear side; the supporting frame is triangular, the lower portion of the front end of the supporting frame is fixedly connected with a positioning block, and the positioning block is inserted into the positioning groove. According to the invention, the triangular support frame is rigidly connected with the yoke plate to form a cantilever type'head-up 'fulcrum, a grinding rope can be directly placed on the lever to obtain a stable elevation angle, a sleeper is not needed for heightening, and friction and collision between the rope and a cross arm are thoroughly eliminated.

The utility model relates to a short -circuit tool for tension insulator, especially disclose a short -circuit tool for fast connection of short -circuit tension insulator for construction, the conductive assembly is set up between two the shell, the inside sliding of shell is equipped with the clamping arm for clamping fitting, the inside sliding of shell is equipped with the double -sided bevel gear plate, the transmission rod for transmitting power is installed between the clamping arm and double -sided bevel gear plate, the inside symmetrical sliding of shell is equipped with the catch plate for catching double -sided bevel gear plate, the both ends symmetrical fixed mounting of shell has the bushing, the side end of catch plate installs the first gear for the reset catch plate, the unlocking frame is slidably installed on the shell, the second spring for resetting the unlocking frame is installed on the unlocking frame, the side end of double -sided bevel gear plate installs the third spring for the reset double -sided bevel gear plate, through the short -circuit operation of pushing, reached the effect that improves short -circuit speed and increases operation safety.

The present application relates to a kind of electric power data mining processing system and method, belong to electric power data mining field.The electric power data mining processing system, including multiple hanging on strain tower strain insulator string, detector and data mining processing server;The strain insulator string contains at least 2 left side sub string and right side sub string in parallel;Strain insulator string includes hanging ring, joint plate and multiple insulator pieces;The number of strain insulator string is equal to the number of detector;The detector is installed at the bottom of joint plate side to insulator piece;Detector and data mining processing server are communicatively connected.The present application improves the detection precision and monitoring level of the dirt on the upper surface and lower surface of the insulator of strain insulator string, while improving the reliability of power system operation.

The invention discloses an extra-high voltage direct current line large-rotation-angle sag observation method and system without containing a strain string, and the method comprises the steps: extracting three-dimensional space coordinates of a lead suspension point of a tangent tower of an adjacent gear and a connection point of a strain string and a lead of a current gear through obtaining target laser point cloud data; calculating a projection distance between the two points on the horizontal plane and defining the projection distance as a traverse observation span; selecting a traverse point cloud in the target laser point cloud data, fitting according to a catenary model to generate a three-dimensional space vector line, extracting coordinates of a plurality of points on the vector line, and calculating an actually measured sag value by using an oblique parabola formula; and converting the design sag based on the full span into the design sag based on the lead observation span, comparing the actual measurement sag with the design sag, and calculating an error to complete sag state evaluation. According to the method, the strain insulator string interference can be effectively eliminated, the problem that the error of a traditional method exceeds the standard is solved, and the accuracy and reliability of ultra-high-voltage direct-current large-rotation-angle line sag observation are remarkably improved.

The invention discloses a ground wire strain insulator capable of inhibiting induced current and preventing sparking, which belongs to the technical field of high-voltage power transmission and comprises an insulating support module, a lightning current discharge module and a safety monitoring module. One end of the insulating support module is connected with a ground wire, and the other end of the insulating support module is connected with a tower; the lightning current discharge module is connected in parallel with two ends of the insulation support module. The insulation supporting module is used for bearing mechanical tension of a ground wire and providing corresponding electrical insulation for the ground wire. The lightning current discharge module is used for conducting when lightning overvoltage on the ground wire is monitored, and discharging lightning current on the ground wire to the ground; and the safety monitoring module is used for monitoring the leakage current and temperature of the lightning current discharge module and evaluating the operation state of the lightning current discharge module, so that the problem that spark discharge is generated by a discharge gap connected in parallel at the two ends of an insulator in the prior art can be solved.

The invention relates to the technical field of insulator detection, and discloses a rotary wing type multi-string strain insulator detection device which comprises two flying frames, swing rods are hinged to one ends of four connecting rods, electric push rods are rotationally connected to the inner walls of four fixing frames, a synchronous belt is in transmission connection between two belt wheels, and the two flying frames are connected with a rotary shaft. The universal joint drives the connecting rod and the swing rod to swing on the two sides of the middle frame together, then the whole rotary wing type detection mechanism swings above an insulator through the swing rod, if the diameter of a detected insulator string is large, swing of the swing rod is hindered, and the detection result is accurate. The electric push rod is started to rotate and stretch between the swing rod and the fixing frame, then the swing rod can swing on the connecting rod to rotate, the swing rod can smoothly extend out of the interior of the insulator string, then the electric push rod is contracted to be matched with the belt wheel to do circular motion, the electric push rod extends into the inner wall of the other side to swing again, and the device can be smoothly toggled to walk.

The invention belongs to the technical field of ultra-high voltage power transmission line operation maintenance, and particularly relates to a live-line work strain insulator string replacement tool which comprises a large knife clamp front clamp, a large knife clamp rear clamp, a wire tightening lead screw and a wire tightening pull rod, and is characterized in that a fixed pulley used for suspending an insulator cradle is arranged on the large knife clamp front clamp, a T-shaped pulley yoke is arranged on the large knife clamp rear clamp, and the T-shaped pulley yoke is arranged on the large knife clamp rear clamp. Two guide wheels are arranged on the T-shaped pulley yoke; an adjusting thread bushing is arranged on the wire tightening pull rod on the front clamp side of the broadsword clamp, and the adjusting thread bushing is propped against a hinge seat on the front clamp of the broadsword clamp; and a supporting movable block is arranged in the groove. The beneficial effects of the invention are that the insulator string can be conveniently put down by means of the transfer rope; the supporting movable block with the eccentric hole can adapt to various types of plate insulator series connection plates, and the application range is wider; the adjusting thread bushing can adjust the length of the mounting position of the wire tightening pull rod, thereby improving the working efficiency; and the hinged seat is beneficial for adjusting the fine-tuning swing angle of the wire tightening pull rod under high-altitude equipotential, and the operation is more convenient.