17 results about "High voltage power lines" patented technology

A hollow core insulator is provided for housing an electronics module for use in power transmission and distribution lines, the hollow core insulator comprising: a fibre-reinforced plastic (FRP) core which includes a first flange, a second flange and a body therebetween, the insulating core defining a bore, wherein the flanges and body are integral and the first flange and the second flange each include a face and a plurality of threaded apertures extending into the face; and a silicone mold which encases the body and includes a series of sheds extending outward from the body, wherein at least one shed includes a perimeter lip.

A power line sensor is attached and removed from electric power lines more effectively and efficiently than conventional power line sensors. An aerial drone lowers the power line sensor by a connecting rod until a trigger of a mousetrap-like spring clamp comes into contact with the power line. The spring clamp simultaneously attaches the sensor to a power line and releases the connecting rod allowing the aerial drone to fly away with the connecting rod. The spring clamp connection mechanism provides near instantaneous attachment of the sensor to the power line and release of the drone, avoiding the need for the drone to attach to the power line or hover over the installation location for an extended period of time.

The utility model relates to the technical field of high-voltage line operation, and discloses a special insulation operation platform for live crossing operation of a high-voltage power line, which comprises a base. According to the technical scheme, the installation heights of the third electric push rod, the second electric push rod and the first electric push rod can be sequentially increased through the third heightening block, the second heightening block and the first heightening block, the third electric push rod can push the third insulation operation platform to be lifted to the highest height, and then an operator climbs to the second insulation operation platform; and then the second electric push rod pushes the second insulation operation platform to be lifted to the highest position, then an operator ascends to the first insulation operation platform to ascend and descend, the high-voltage power line can be maintained, and through cooperation of all the structures, the problems that the lifting height of a single electric push rod is limited, and operation is inconvenient can be solved. The situation that an operator cannot reach the working height is avoided, meanwhile, the operator does not need to climb manually, tools are convenient to carry, and physical strength is saved.

A non-contact current sensor array for high voltage electric power lines provides analog suppression of magnetic coupling from neighboring conductors. In a three-phase example, the sensor array measures magnetic coupling proportional to the current in a selected phase conductor (e.g., Phase-A) of a three-phase power line, while suppressing magnetic coupling from the other phase conductors of the power line (e.g., Phase-B and Phase-C). The sensor array includes a primary sensor in transverse alignment with Phase-A, a first ancillary sensor in radial alignment with Phase-B, a second ancillary sensor in radial alignment with Phase-C. The primary sensor, first ancillary sensor, and second ancillary sensor are electrically connected in series with respective winding turns selected to substantially cancel out magnetic coupling from Phase-B and Phase-C in a current measurement by the sensor array.

The invention discloses a double-circuit high-voltage wire drilling rod, which relates to the technical field of high-voltage transmission lines, comprises a rod body, and is characterized in that the rod body comprises a first supporting part, a second supporting part and a third supporting part which are sequentially arranged in the vertical direction, and every two adjacent supporting parts are connected; the first cross arm, the second cross arm and the third cross arm are sequentially arranged in the vertical direction, the first cross arm and the second cross arm are connected with the first supporting part, and the third cross arm is connected with the second supporting part; the cross arm group comprises a first pull rod and a second pull rod, two ends of the first pull rod are respectively connected with the first supporting part and the first cross arm, one end of the second pull rod is connected with the first supporting part, and the other end penetrates through the second cross arm and then is connected with the third cross arm; the first cross arm, the second cross arm and the third conveying cross arm are each provided with a suspension device. According to the invention, the design structure is reasonable, the size of the rod body can be reduced on the premise of ensuring the overall strength of the structure, stable support can be provided for the electric wire, and the electric wire can be correspondingly bent conveniently.

A surge protection device comprising: a surge arrester (9) and a spark gap (11) with a first electrode (13) which is connected to one end of the surge arrester (9), wherein the spark gap (11) and a central axis of the surge arrester (9) enclose an angle of less than 180°, characterized by the fact that a torsional moment compensation element (15) is provided which is dimensioned to counteract a torsional moment of the first electrode (13) about the central axis of the surge arrester (9) caused by wind.

The utility model relates to the technical field of high-voltage wire clamps, and discloses a high-voltage transmission line wire clamp device. The utility model aims to solve the technical problems that in the prior art, the mechanical strength and durability are insufficient, the electrical performance is poor, the resistance loss is large, the power transmission efficiency is further reduced, the cable is further difficult to adapt to outdoor complex environments, and the cable does not have corrosion resistance and lightning protection capability. The cable comprises a strain clamp, the strain clamp comprises a drainage plate and a strain pipe, the strain pipe comprises a wire crimping area, a first non-crimping area, a steel anchor crimping area and a second non-crimping area, a stranded wire is connected in the wire crimping area through a crimping technology, and a steel anchor crimping groove is arranged in the steel anchor crimping area to accommodate a steel anchor. The stranded wire and the steel anchor are connected through a crimping process in the first non-pressing area, and the welding part of the drainage plate and the strain pipe is located in the second non-pressing area. The utility model aims to improve the efficiency, safety and stability of power transmission, and is suitable for various application scenes in a modern high-voltage power transmission network.

The invention discloses a high-voltage power transmission line unmanned aerial vehicle inhabitation type charging optimal stagnation point selection method. An unmanned aerial vehicle carries a binocular camera, the unmanned aerial vehicle carries the binocular camera, positioning of a power line to be inhabitated is realized based on machine vision, a middle point of the power line is selected as a high-voltage line stagnation point, and tracking and inhabiting at the stagnation point are carried out in a wind disturbance environment. Factors such as swing of the high-voltage power line in a wind disturbance environment and influence of wind disturbance on flight of the unmanned aerial vehicle are considered, the inhabitation position with small swing and stable mounting is selected as a stagnation point, a prediction method for the inhabitation point position of the unmanned aerial vehicle under swing of the power line is provided, future position estimation of the inhabitation point under wind disturbance is guaranteed, and the prediction accuracy is improved. The robustness of the drone wire inhabiting action is improved; and an unmanned aerial vehicle line environment state autonomous identification technology is researched, so that automatic inhabitation of the unmanned aerial vehicle to a stationary point is realized.

The highway underpass ultra-high voltage power line safety protection device and construction method can make the ultra-high voltage cable in different forms during fixing at different stages, and can fix each ultra-high voltage cable very quickly and conveniently, can conveniently check the appearance of the ultra-high voltage cable when starting to fix the ultra-high voltage cable, and can make the ultra-high voltage cable in an unfolded and laid state when in a suspended state, ensure that the lower end of the ultra-high voltage cable has a high enough construction space and the ultra-high voltage cable is stably and reliably suspended, meanwhile, the protection device realizes the detachable and repeated use of the safety protection device, saves cost and makes the underground construction with the ultra-high voltage cable safer, and can clearly check whether the surface of each ultra-high voltage cable is damaged when the ultra-high voltage cable is suspended, further improving construction safety.

A hollow core insulator is provided for housing an electronics module for use in power transmission and distribution lines, the hollow core insulator comprising: a fibre-reinforced plastic (FRP) core which includes a first flange, a second flange and a body therebetween, the insulating core defining a bore, wherein the flanges and body are integral and the first flange and the second flange each include a face and a plurality of threaded apertures extending into the face; and a silicone mold which encases the body and includes a series of sheds extending outward from the body, wherein at least one shed includes a perimeter lip.

A power line sensor is attached and removed from electric power lines more effectively and efficiently than conventional power line sensors. An aerial drone lowers the power line sensor by a connecting rod until a trigger of a mousetrap-like spring clamp comes into contact with the power line. The spring clamp simultaneously attaches the sensor to a power line and releases the connecting rod allowing the aerial drone to fly away with the connecting rod. The spring clamp connection mechanism provides near instantaneous attachment of the sensor to the power line and release of the drone, avoiding the need for the drone to attach to the power line or hover over the installation location for an extended period of time.

A non-contact current sensor array for high voltage electric power lines provides analog suppression of magnetic coupling from neighboring conductors. In a three-phase example, the sensor array measures magnetic coupling proportional to the current in a selected phase conductor (e.g., Phase-A) of a three-phase power line, while suppressing magnetic coupling from the other phase conductors of the power line (e.g., Phase-B and Phase-C). The sensor array includes a primary sensor in transverse alignment with Phase-A, a first ancillary sensor in radial alignment with Phase-B, a second ancillary sensor in radial alignment with Phase-C. The primary sensor, first ancillary sensor, and second ancillary sensor are electrically connected in series with respective winding turns selected to substantially cancel out magnetic coupling from Phase-B and Phase-C in a current measurement by the sensor array.

Provided is a vehicle-mounted electric compressor that can improve an effect of reducing noise generated from, for example, an inverter circuit without increasing electrostatic capacitance of a Y-capacitor. A vehicle-mounted electric compressor (1) includes, in a metal housing (2), an inverter board (17) on which an inverter circuit (34) that converts direct current from a high-voltage battery (41) to alternating current and applies the alternating current to a motor (8) is mounted. Included are: a common mode coil (54) inserted into a high-voltage power line (46, 47) from the high-voltage battery (41); a Y-capacitor (56) connected between the high-voltage power line (46, 47) and the housing (2); and an inductor (57) connected in series to the Y-capacitor (56).

The invention belongs to the field of power transmission line maintenance, and particularly relates to a high-voltage power transmission line deicing structure and a deicing method.The high-voltage power transmission line deicing structure comprises a power transmission line connected to a power transmission tower body, the power transmission tower body is connected with one ends of at least two insulator strings, and the other ends of the at least two insulator strings are connected with the power transmission line; the power transmission line between at least two insulator strings is a jumper segment, the power transmission line comprises an aluminum pipe, the periphery of the aluminum pipe is coated with a layered structure formed by twisting a plurality of strands of aluminum wires and steel cores, a branch pipeline is arranged on the side of the aluminum pipe of the jumper segment in parallel, and a hot air mechanism is arranged in the branch pipeline.

The invention discloses an exoskeleton health monitoring and fatigue early warning method and system for high-altitude operation, and relates to the technical field of exoskeleton control, and the method comprises the steps: collecting the parameters and body surface temperature data of an operator in real time through an exoskeleton integrated sensor; carrying out noise reduction and feature extraction preprocessing on the collected data; constructing a model based on the multi-dimensional features, evaluating muscle fatigue, joint load and cardiovascular state, and generating a health state score and a fatigue accumulation value; dynamically adjusting an exoskeleton assistance mode and output force according to an evaluation result; and setting a safety threshold value and a grading early warning mechanism, giving out a prompt or limiting high-intensity action when early warning is triggered, and recording related data. Through dynamic linkage of the health state and assistance control, the wearing comfort and the operation continuity are improved, the high-altitude falling risk is reduced through a graded early warning mechanism, and dual guarantees of health and safety are provided for high-altitude operation such as ultra-high-voltage electric power overhaul and the like.

This application relates to the technical field of power line maintenance equipment, and discloses a drone-mounted high-voltage power line foreign object insulation removal device, including a mounting frame, a control box, a servo motor chassis, a positioning component, and a fixing mechanism. The mounting frame is rigidly connected to the bottom of the drone; the positioning component is installed on the right end of the servo motor chassis, and uses a rotating servo motor and an electric push rod to adjust the height, orientation, and angle of the subsequent mechanism when the drone hovers; the fixing mechanism is located on the right end of the positioning component, and integrates a clamping component, a driving component, a cutting component, and a guiding component. During operation, the guiding component moves with the clamping arm, causing the guide plate to retract towards the center, guiding and aligning easily fluctuating foreign objects; the clamping component closes to fix the foreign object, and the sealed hydraulic drive mechanism pushes the blade of the cutting component to extend, cutting entangled objects such as kite strings. This invention improves the efficiency and effectiveness of high-altitude cleaning through multi-degree-of-freedom adjustment, guiding retraction, and hydraulic cutting design.

Grounding simulation models for training linemen and other power or utility technicians are disclosed. The grounding simulation models can be configured to provide equipotential zone (EPZ) grounding training for high voltage electric power transmission. In some instances, the grounding simulation models can include a power pole assembly including power poles, a top conductor, a middle conductor, a bottom conductor and an optical ground wire (OPGW). In some instances, the grounding simulation models can include a lineman meter configured to emulate a utility worker operating on high voltage electric power lines. In some instances, the grounding simulation model can include step leads that can be positioned anywhere along a matrix pattern on a mounting board, wherein the step leads are configured to demonstrate step and touch potential. In some instances, the grounding simulation models can include a model wire puller and insulation and isolation platforms.