35 results about "High voltage power lines" patented technology

The invention relates to the technical field of electric power communication, in particular to a remote control system and method for a multimode communication chip of a middle-high voltage power line, and the system comprises a communication chip module, an edge node module, a central server module and a block chain network module. And the verification module is used for verifying the consistency of the cooperative control instruction and recording equipment state data. Based on a multi-mode converged communication architecture of carrier communication, microwave communication and laser communication, reliable communication in a middle and high voltage power line environment is realized through an intelligent switching and cooperative working mechanism. And the power line channel state, the service requirement and the frequency spectrum use condition can be monitored in real time.

An embodiment provides unmanned aerial vehicles (UAVs) for infrastructure surveillance and monitoring. One example includes monitoring power grid components such as high voltage power lines. The UAVs may coordinate, for example using swarm behavior, and be controlled via a platform system. Other embodiments are described and claimed.

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.

1. Name of the Design Product: Controller (High-Voltage Switch). 2. Use of the Design Product: For controlling high-voltage power lines. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

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 invention provides a high-voltage power line check bolt defect detection method based on knowledge reasoning, and belongs to the field of bolt defect detection, and the method comprises the following steps: S1, constructing a data set; s2, a defect detection model is constructed, the defect detection model is an improved end-to-end target detection model, and the end-to-end target detection model comprises a model body, an encoder, a decoder and a detection head; s3, constructing a dual-classifier joint reasoning network, wherein the dual-classifier joint reasoning network comprises a lock bolt attribute classifier and a lock bolt defect classifier; and S4, training the check bolt attribute classifier and the check bolt defect classifier, and carrying out defect detection on the bolt by utilizing the trained double classifiers and the reasoning network. Based on the check bolt attribute classifier and the check bolt defect classifier, the position knowledge and the attribute knowledge are combined to assist the bolt defect classifier to detect the bolt defects, and the accuracy of check bolt defect detection is further improved.

A system for monitoring faults in a medium- and / or high-voltage power line having at least one sensor of a parameter that correlates with the fault, operatively connected to the medium- and / or high-voltage power line or to a medium- and / or high-voltage plug; an analogue-to-digital conversion module, configured to receive a reading from the at least one sensor and deliver a digital representation of the reading to a memory processing and management module that is configured to determine the existence of a fault from the digital representation and, in response to the determination of the existence of the fault, generate representative data of the fault, which are delivered to a communication module configured to encode the representative data and transmit the encoded representative data to a communication interface that is configured to receive the encoded data and transmit them to a remote terminal.

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.

To suppress occurrence of shift operation malfunction that may occur when an abnormality occurs in a power conversion device that supplies power from a high-voltage battery to an auxiliary battery.SOLUTION: In a state that an abnormality has occurred in a power conversion device configured to reduce power of a high-voltage power line and to supply the reduced power to a low-voltage power line, when starting an engine using a starter motor that receives the power supplied from the low-voltage power line, the hybrid vehicle masks shifting operation until the engine starting is complete.SELECTED DRAWING: Figure 2

The present invention provides a safety protection device for an ultra-high voltage power line passing under a highway. When an ultra-high voltage cable is passed under the highway, the device can automatically adjust the height of the cable at the cable crossing end. This can be achieved remotely or through an automatic program. The entire adjustment does not require workers to climb the power tower for construction, but only needs to be arranged. At the same time, once arranged, the power transmission line tower of the present invention can adapt to the situation of crossing another highway on the basis of an already built highway. When the height of the cable needs to be further increased, it is only necessary to make the winding wheel smaller and the swing arm further extended to achieve this. There is no need to rearrange a power transmission line tower or scaffolding that is compatible with the newly built highway, which can achieve the purpose of solving the problem once and for all. At the same time, the construction method provided by the present invention can conveniently and quickly adjust the cable height when an ultra-high voltage power line is passed under the highway.

To facilitate exploration of an accident point in a power distribution line.SOLUTION: An exploration apparatus 1 for exploring an accident point in a high-voltage power distribution line includes: a magnetic field detection unit 12 configured to detect, at an exploration position, a magnetic field generated from a current flowing through the high-voltage power line when a pulse voltage is applied to the high-voltage power line, and to output a magnetic field signal; a control unit 22 configured to output an integrated value obtained by integrating the magnetic field signal over a predetermined time; and a display unit 23 configured to display a level of the integrated value.SELECTED DRAWING: Figure 3

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.

The utility model provides a vehicle-mounted high-voltage power line approach alarm terminal, which relates to the technical field of electric power safety protection and comprises an approach alarm terminal assembly, a protection heat dissipation assembly is arranged on the outer side of the approach alarm terminal assembly, and an installation assembly is arranged at the bottom of the approach alarm terminal assembly. A damping assembly is arranged at the bottom of the mounting assembly, and the proximity alarm terminal assembly comprises an alarm terminal body. The installation block is installed in the installation groove in a sliding mode, then the limiting plate is moved to move in the fixing frame, limiting of the installation groove is facilitated, meanwhile, the pull rod is pulled outwards to enable the spring to be stressed and compressed, and when the limiting plate moves to the corresponding position, the pull rod is loosened, and elasticity of the spring is utilized. The alarm terminal body can be conveniently mounted and dismounted, the alarm terminal body can be conveniently maintained and overhauled, and the convenience of using the proximity alarm terminal assembly is improved.

The utility model relates to the technical field of transportation, in particular to a shed tunnel structure for preventing power lines from falling off, comprising a corrugated steel arch frame, a leveling layer, an insulating layer, a fixed support and a foundation, wherein the outer surface of the corrugated steel arch frame is paved with a leveling layer, the outer surface of the leveling layer is flat, the outer surface of the leveling layer is connected to the insulating layer, a cushion block is arranged between the fixed support and the foundation, the corrugated steel arch frame is connected to the foundation through the fixed support, and the scheme improves the safety of high-speed driving at the intersection of power lines, the rigidity and stability of the corrugated steel arch frame provide a stable support for the fallen high-voltage power lines, and reduce the threat of the falling power lines to the driving on the lane, the cushion block can play a buffering role between the fixed support and the foundation, absorb and disperse the energy generated by the external force or natural disasters such as earthquakes, and the shed tunnel structure is safe and reliable, has high impact resistance, is simple to construct, and has low foundation bearing capacity requirements.

The utility model discloses a high-voltage power line crossing frame for overhead line relocation and transformation construction, which comprises a base, wheels are fixedly mounted at the bottom of the base, a shell and a support are fixedly mounted on the top surface of the base, guide pipes are arranged on the outer walls of the shell and the support, a first travel groove is formed in the top of the support, and a second travel groove is formed in the bottom of the support. A first stroke groove is formed in one side of the base, a positioning assembly is arranged on the inner wall of the first stroke groove, a pressing fixing assembly is arranged on the inner wall of the shell, a storage groove and a second stroke groove are formed in one side of the base, and a traction assembly is arranged on the inner wall of the storage groove; according to the utility model, through the arrangement of the pressing fixing assembly, ground supporting of the crossing frame is effectively realized through the design, horizontal displacement of the whole crossing frame on the ground is avoided, the stability of the crossing frame during supporting operation of an electric power circuit is greatly improved, and the use effect is good.

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 utility model discloses a lightning protection grounding protection system of a high voltage electric power circuit, comprising a lightning protection unit which comprises two connecting plates and two connecting wires, the two connecting wires are respectively fixedly connected with the two connecting plates through bolts, the same sides of the two connecting plates are fixedly connected with a plurality of grounding leads through bolts, and a bunching unit, the device comprises connecting rings arranged on a grounding wire in a sleeving mode, the multiple connecting rings are vertically distributed at equal intervals, cylinders are fixedly connected to one sides of the multiple connecting rings, the bottoms of the multiple cylinders are in threaded connection with ball head rods, and ball head sleeves are arranged at the bottoms of the ball head rods in a sliding mode. According to the utility model, a certain interval is kept between the broken grounding lead and the other grounding leads through the connecting ring, and the broken grounding lead is not contacted with the other grounding leads through the ball head rod and the ball head sleeve, so that the other grounding leads can normally play a role in lightning protection and grounding protection.

The present invention discloses a tester for high-voltage power line loss, comprising a tester body, a shell installed in the tester body, two internal electric poles installed on the inner wall of the shell, two external electric poles corresponding to the two internal electric poles in a sliding manner connected to the side wall of the shell, an anti-slip mechanism provided in the shell, the anti-slip mechanism comprising two grooves respectively provided on the top and bottom of the shell, a slider slidably connected to the inner wall of the groove, and the side wall of the slider elastically connected to the inner wall of the groove via a first telescopic spring. The present invention sets an anti-slip mechanism, and after the two external electric poles are inserted into the shell and fit with the two internal electric poles, the two insulating rods are located in the two card slots, thereby fixing the positions of the two external electric poles, avoiding the external electric poles and the internal electric poles from falling off and separating during actual use, thereby causing the testing process to be unstable, thereby affecting the work of the power staff and the accuracy of the test results.

A capacitive voltage divider designed to step down high-voltage from an electrical power line to a lower more suitable voltage includes a hollow insulator, a primary terminal located on the hollow insulator and connected to the high-voltage power line, first and second capacitors arranged as a voltage divider circuit, one or more primary insertion resistors, and solid dry foam dielectric formed around the first capacitor and the second capacitor within the hollow insulator.

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.

A display substrate having a display area and a gate-on-array (GOA) area outside the display area is provided. The display substrate includes a base substrate; a plurality of GOA signal lines on the base substrate and in the GOA area; and a first signal line in the GOA area, at least a portion of the first signal line being on a side of the plurality of GOA signal lines away from the base substrate. An orthographic projection of the first signal line on the base substrate at least partially covers an orthographic projection of at least one of a first clock signal line, a second clock signal line, a start signal line, a high voltage power line, or a low voltage power line on the base substrate.

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.