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54results about "Connection to earth" patented technology

Ancient building lightning protection system and method based on lightning early warning device

The invention discloses an ancient building lightning protection system and method based on a lightning early warning device, and belongs to the technical field of lightning protection systems, and the system comprises a sensing layer, a decision layer, an execution layer and a digital twin platform. The sensing layer collects multi-mode environmental parameters through an annular atmospheric electric field monitoring array, a broadband electromagnetic pulse sensor and a meteorological sensor. The decision-making layer fuses data and outputs four levels of risk levels through the risk prediction model of the ancient building LSTM combined attention mechanism, and generates a protection instruction; and the execution layer adopts a bionic hidden lightning receiving device (hidden in a non-working state), a passive corona field lightning driving device and a multi-stage historic building SPD, and responds according to a grading strategy. The digital twin platform constructs a high-precision model, and realizes data visualization and protection strategy simulation optimization. Passive lightning protection is converted into active intelligent protection, the situation that a traditional device destroys the style and appearance of an ancient building is avoided, secondary damage caused by lightning stroke is reduced, self-learning optimization can be achieved, and the requirements for safety and cultural relic protection are met.
Owner:WUHAN LEIGUANG DIGITAL TECH CO LTD

Electric vehicle charging controller and electric vehicle charger comprising same

An electric vehicle charger according to an embodiment of the present invention comprises an electric vehicle charging controller comprising an inlet comprising: an earthing pin coupled to a coupler and configured to connect a first earthing line connected to a first earthing power source in an electric vehicle power supply device and a second earthing line connected to a second earthing power source in an electric vehicle; a first signal pin coupled to the coupler and configured to connect a first signal line in the electric vehicle power supply device and a first signal line in the electric vehicle; and a second signal pin coupled to the coupler and configured to connect a second signal line in the electric vehicle power supply device and a second signal line in the electric vehicle, and a sensing unit connected to the electric vehicle power supply device through a third signal line and a fourth signal line so as to receive a third signal and a fourth signal. The inlet comprises a signal unit disposed between the second signal line and the third signal line, and configured to generate a second signal and then transmit same to the electric vehicle charging controller. The sensing unit comprises: a first processing unit electrically connected to the electric vehicle power supply device through the third signal line and the fourth signal line, and configured to receive the third signal and the fourth signal from the electric vehicle power supply device; a second processing unit for receiving the third signal and the fourth signal that a first sensing unit has received, and then transmitting same to a control unit; and an insulation unit for electrically isolating the first processing unit and the second processing unit from each other.
Owner:LG INNOTEK CO LTD

Overhead transmission line lightning arrester and installation method

The invention relates to the technical field of line lightning protection, in particular to an overhead transmission line lightning arrester and an installation method.The overhead transmission line lightning arrester comprises two bases used for being installed on a cross arm, and an n-shaped plate is clamped between the two bases and fixedly arranged through bolts; a first lightning arrester and a second lightning arrester which are used for lightning protection of the power transmission line are installed on the n-shaped plate, connecting plates are installed at the tops of the first lightning arrester and the second lightning arrester, and a first fixing clamp, a second fixing clamp and a wire clamp which are used for being installed on the line are installed on the connecting plates; an overhead line is arranged among the first fixing clamp, the second fixing clamp and the wire clamp in a penetrating mode, the first lightning arrester is located on the two sides of the n-shaped plate, the second lightning arrester is located in the middle of the n-shaped plate, the first lightning arrester and the second lightning arrester are connected with on-line monitoring devices on the n-shaped plate, and the lower ends of the on-line monitoring devices are connected with discharge counters. The device has the advantages of being compact in structure, convenient to replace parts and capable of stably operating for a long time in an extreme environment.
Owner:SHEQI COUNTY POWER SUPPLY CO OF STATE GRID HENAN ELECTRIC POWER CO

Lightning protection device for tethered balloon communication system

A lightning protection device of a tethered balloon communication system, comprising: a lightning protection net, a shielding layer, a protection circuit; the lightning protection net wraps the tethered balloon; the shielding layer is installed outside the communication module and the communication line of the tethered balloon and is connected with the lightning protection net; the protection circuit is connected inside the communication module and is used for protecting common mode and differential mode interference caused by lightning; the lightning protection net arranged outside the tethered balloon, the shielding layer and the protection circuit arranged inside the communication module are designed according to the characteristics of the communication system in the tethered balloon, the communication module and the communication line are treated in all directions, the damage caused by lightning to the communication module of the tethered balloon and the radiation and conduction interference in the lightning process are effectively reduced, the normal work of the communication module in the lightning process is ensured, and the accuracy and reliability of data transmission are ensured.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +2

Live working fully insulated disconnectable gapless surge arrester device

A live-line working, fully insulated, separable gapless surge arrester device comprises: a piercing, detachable insulated clamp, a high-voltage lead, a lightweight insulating cavity, an upper contact, an upper insulated waterproof piston ring, the arrester body, a lower insulated waterproof piston ring, an insulating sheath, a contact ring, a contact piece fixing ring, a contact piece, an elastic tension spring, a metal bracket, an insulating bracket, a disconnector connection bracket, a disconnector, a disconnector itself, and a lead wire connection terminal. It is mainly used for overvoltage protection of power distribution lines. The insulated operating rod allows for live-line installation and removal of the arrester body and disconnector, improving installation and maintenance efficiency. The disconnector temporarily isolates power frequency current and clearly indicates the fault point, reducing losses caused by power outages due to grounding short circuits. The disconnector connection bracket facilitates live-line separation and replacement of the disconnector. The device is fully insulated, improving the insulation process of the line. The piercing, detachable insulated clamp facilitates live-line installation and removal, eliminating the need to strip the insulation from the conductor, thus improving installation efficiency and line insulation.
Owner:SHANGHAI ZHAOBANG ELECTRIC FACILITY CO LTD

Shock insulation support and lightning protection integrated structure

The invention provides a shock insulation support and thunder and lightning protection integrated structure, and relates to the technical field of constructional engineering, the shock insulation support and thunder and lightning protection integrated structure comprises a lower connecting steel plate, the upper surface of the lower connecting steel plate is fixedly connected with a shock absorption laminated layer, the center of the shock absorption laminated layer is provided with a trigger mechanism, and the upper surface of the shock absorption laminated layer is fixedly connected with a lower supporting plate; a connecting mechanism is arranged at the edge of the upper surface of the lower supporting plate, a rotating shaft is rotationally connected to the center of the lower supporting plate, an inner rotating plate is fixedly connected to the middle of the outer surface of the rotating shaft, the vibration amplitude is accurately recognized through a trigger mechanism, the connecting mechanism is linked to unlock a clamping assembly, and the relative position of the upper supporting plate and the lower supporting plate can be flexibly adjusted; and the inner rotating plate is driven to turn to the stress side and is matched with the supporting mechanism to form transverse and longitudinal double reinforced supporting, and the effects that the building transverse movement amount can be effectively limited, support dislocation is avoided, and the structural safety under high-intensity earthquakes is remarkably improved are achieved.
Owner:BEIJING URBAN CONSTR GROUP

Power transmission tower structure with embedded ground conductor for improving lightning performance and method for determining location and effect of embedded conductor

Power line conductors are normally shielded from direct lightning strikes by appropriately placed overhead ground wires. However, even when such overhead ground wires work as intended and intercept a strike, for a short period of time, typically a few microseconds, the shield wire is exposed to an impulse type potential rise. This could be sufficient to cause flashover of one or more line insulator strings. This is called backflash. The present invention solves this problem by providing a power transmission tower structure with an embedded ground conductor positioned in order to optimize the coupling factors to all conductors and reduce stress on all insulator strings through increased electromagnetic coupling. Use of a streamer-inhibited conductor avoids adverse effects such as radio interference and audible noise due to induced charges and improves electromagnetic coupling as a result of the reduced surge impedance of the conductor.
Owner:RIZK FAROUK A M +1

Lightning protection wire terminal

A lightning protection conductor clamp (10) for fixing a lightning protection or earthing conductor (12) to a reinforcing material (14) is shown. The lightning protection conductor clamp (10) comprises two clamping devices (16), each having a base (18) via which the two clamping devices (16) are connected to each other in a connection plane (E). Furthermore, each clamping device (16) has a receptacle (20) formed by a retaining leg (22), a transition section, and a spring leg (26). The receptacles (20) each have a receiving opening (28) bounded by the respective retaining leg (22) and the spring leg (26), with the receiving openings (28) each facing the connection plane (E). A lightning protection conductor clamp (110) for attaching at least one lightning protection or earthing conductor (112) to an equipotential bonding bar is also shown.
Owner:DEHN SOHNE GMBH CO KG

A device for suppressing lightning flashover tripping of transmission line insulators

This invention provides a device for suppressing lightning flashover tripping of insulators in transmission lines, relating to the field of lightning protection technology for transmission lines. It includes a high-frequency filter, a low-impedance channel, and a phase change material (PCM) electric field energy absorber. The high-frequency filter is installed on the side of the overhead lightning protection line near the tower to block the lightning current generated by lightning strikes. The low-impedance channel is connected to the input end of the PCM electric field energy absorber via a coaxial cable to guide the lightning current to the PCM electric field energy absorber. The PCM electric field energy absorber is installed on the tower near the ground, and its output end is connected to the tower and grounded to absorb the electric field energy of the lightning current. This device can effectively reduce the tower potential and the amplitude of the lightning current, reducing the probability of flashover of insulators and transmission line tripping caused by lightning strikes in the power system, and improving the operational reliability of the power system.
Owner:EAST CHINA BRANCH OF STATE GRID CORP

Composite panel comprising a perforated metal foil for lightning strike protection

A composite panel comprising a perforated metal foil for lightning strike protection, the composite panel comprising: a plurality of carbon layers; a perforated metal foil comprising a number of apertures and directly fastened to the plurality of carbon layers; and a protective layer made of a resin reinforced with fibers, the protective layer being fastened to the metal foil, wherein the perforated metal foil is embedded into the protective layer through its apertures, a free surface of the protective layer forms a top side of the composite panel, a thickness of the protective layer between the top side of the composite panel and the perforated metal foil is at least 15 micrometers, and a thickness of the perforated metal foil is not more than 30 micrometers, the plurality of apertures defines in total an open area of not more than 40% of the surface area, and a maximum distance between two opposite points on the aperture periphery is equal to or less than 3 mm.
Owner:AIRBUS (SAS)

Insulation installation device applied to lightning arrester box body

The invention discloses an insulation installation device applied to a lightning arrester box body, and relates to the technical field of box type lightning arresters, and the insulation installation device comprises an external box body which is fixedly connected with offshore wind power equipment; the bracket is fixedly arranged at the inner bottom end of the outer box body, a guide groove is formed in the top end of the bracket, a convex knot is arranged at the upper end of the bracket, and a transverse inserting groove is formed in the convex knot. An air rod in the lock pin assembly is driven to act through external environment temperature change, thermal expansion and cold contraction of a metal piece are automatically compensated, dynamic adjustment and long-acting maintenance of locking force are achieved, the problem of connection loosening caused by temperature difference is fundamentally solved, and the locking effect is greatly improved through insertion alignment and vertical supporting and fixing of a single rotating hexagonal table. The mounting and dismounting process is greatly simplified, the operation and maintenance efficiency is improved, the device is particularly suitable for offshore high-altitude operation, meanwhile, a double mechanical fixing mode of locking and supporting is adopted, three-dimensional constraint is formed, and the overall rigidity and vibration resistance are remarkably superior to those of a traditional single-point fixing mode.
Owner:JIANGSU YUCHENG YEGE ELECTRIC EQUIP CO LTD

Holding device for a lightning rod holding arrangement

A holding device for a lightning rod mounting assembly comprises a base body (15) with an intermediate section (19) and two side sections (18) extending laterally to the intermediate section (19) and each forming an angle with the intermediate section (19). The holding device (9) also has a mounting element comprising two opposing mounting bodies (16) for contacting the profile side faces of a building roof, in particular a trapezoidal profile roof. Each mounting body (16) has at least one mounting body adhesive element (47) for adhesively fixing the holding device (9) to the profile side faces. In the assembled state of the holding device (9), each mounting body (16) is adjustably coupled to a side section (18). Furthermore, the holding device (9) comprises at least one connecting element (17) for connecting to a lightning rod.
Owner:J PROEPSTER GMBH

A lightning protection device for a gantry crane, a machine and a method of use thereof

The application relates to the technical field of engineering machinery, in particular to a door machine lightning protection device, machinery and a use method. The door machine lightning protection device comprises a rotating rod structure, an umbrella net structure and a conductive structure. The rotating rod structure comprises a rotating rod which is arranged in an insulating sleeve of the door machine. The umbrella net structure comprises a guide sleeve which is threadedly connected with the rotating rod and arranged on the outer periphery of the rotating rod. The guide sleeve is provided with conductive vertical rods which are arranged at intervals. The conductive vertical rods are surrounded by conductive horizontal rings which are arranged at intervals. The conductive horizontal rings have different radii, so that the umbrella net structure has different layer heights. The conductive structure comprises a conductive wire and a grounding carbon rod. One end of the conductive wire is connected with the rotating rod, and the other end is connected with the grounding carbon rod. In the lightning protection state, the conductive vertical rods are extended out of the insulating sleeve, the conductive horizontal rings are expanded into umbrella shapes along the circumferential direction of the conductive vertical rods, and the conductive horizontal rings and the conductive vertical rods form umbrella shapes to shield the door machine from lightning. The lightning is transmitted to the conductive wire through the rotating rod, and the conductive wire is transmitted to the ground through the grounding carbon rod. The application solves the problem that the lightning rod cannot cover the door machine and influences the protection effect.
Owner:CHINA THREE GORGES CORPORATION +1

A wireless grounding device and grounding method for photovoltaic modules

This invention provides a wireless grounding device and method for photovoltaic modules, including multiple horizontally arranged aluminum alloy rails, multiple longitudinally inclined aluminum alloy main beams, multiple vertically arranged aluminum alloy legs, and steel grounding spikes. The top surface of the aluminum alloy rails is connected to the bottom surface of the photovoltaic module frame via spiked grounding plates, which pierce the oxide film of the photovoltaic module frame and the aluminum alloy rails. The top surface of the aluminum alloy main beams is connected to the bottom surface of the aluminum alloy rails via spiked rail clamping blocks, which pierce the oxide film of the aluminum alloy rails and the aluminum alloy main beams. Self-tapping screws pierce the oxide film between the adapter and the aluminum alloy main beams. The top surface of the steel grounding spikes is connected to the bottom surface of the aluminum alloy legs via bases. The bottom end of the steel grounding spikes is inserted into the ground. This wireless grounding device allows the photovoltaic module to quickly conduct current to the ground surface without additional wires when struck by lightning, providing good conductivity and a high safety factor.
Owner:XIAMEN ANTAI NEW ENERGY TECH

Railway transport line device for crossing high-voltage power transmission line and use method

The invention relates to a railway transportation line device for crossing a high-voltage transmission line and a use method, and the railway transportation line device comprises a railway transportation line device body with a bridge (2), an outer supporting column (7) corresponding to the railway transportation line device body, and a housing assembly (8) arranged on the outer supporting column (7). A railway transportation line is arranged on the lower portion of a high-voltage power transmission line, a housing assembly (8) is supported through an outer supporting column (7), a U-shaped groove plate body is placed on a railway transportation line device body through the housing assembly (8), and the railway transportation line located on the high-voltage power transmission line is located in a tunnel body isolated from a cable. The technical problem that bridge piers and box girders are used on the lower portion of a high-voltage transmission line to support a track line is solved, and therefore the service life of the railway transportation line device is prolonged.
Owner:CHINA RAILWAY DESIGN GRP CO LTD +1

Lightning protection device of photoelectric navigation equipment

The invention provides a thunder and lightning protection device for photoelectric navigation equipment, the photoelectric navigation equipment comprises an outboard device and an in-cabin device, the outboard device and the in-cabin device are connected through a connecting cable, and the thunder and lightning protection device comprises an outboard device thunder and lightning suppression module and an in-cabin device thunder and lightning protection module; the outboard equipment lightning suppression module is installed inside the outboard equipment, the in-cabin equipment lightning protection module is connected to the connecting cable in series, and the in-cabin equipment lightning protection module is grounded through an independent current loop. The outboard equipment lightning suppression module serves as a first defense line for lightning protection, is installed in outboard equipment (such as a photoelectric sensor, an antenna, an external detector and the like which are exposed in a complex electromagnetic environment), and preferentially suppresses lightning indirect effects (such as inductive lightning surge and electrostatic discharge) entering from outboard cable coupling. And surge energy is prevented from being directly transmitted into the connecting cable.
Owner:CENT CHINA OPTOELECTRONICS TECH RES INST (CHINA STATE SHIPBUILDING CORP 717TH RES INST)

Distribution wire fixing device with lightning protection function

The invention provides a distribution wire fixing device with a lightning protection function, and describes various embodiments related to the distribution wire fixing device, the fixing device has the lightning protection function and comprises a rotating shell, a sliding shell, a first rotating connecting part, a second rotating connecting part, a rotating shell, a first rotating connecting part and a second rotating connecting part, therefore, the distribution line is prevented from being directly influenced by lightning stroke, and the lightning rod is placed at a distance according to rotation or sliding movement. The distribution line can be prevented from being influenced by abnormal voltage generated by lightning stroke of the lightning rod, and the distribution line can be prevented from being damaged by electric arc generated by the lightning rod due to the lightning stroke. In addition, various different embodiments can be provided.
Owner:WITH ENG CO LTD

Multi-channel airborne lightning indirect effect protector and manufacturing method thereof

The invention discloses a multi-channel airborne lightning indirect effect protector and a manufacturing method thereof, and relates to the technical field of electromagnetic protection. The at least two mutually independent lightning protection channels are arranged in the shell, the lightning protection channels are respectively used for protecting different types of target signals, and each lightning protection channel comprises a signal input end, a lightning protection function circuit and a signal output end; the lightning protection function circuit adopts different circuit topologies and device types according to the physical characteristics of a target signal protected by the lightning protection function circuit; the multi-channel lightning protection device can provide targeted and efficient multi-channel lightning protection for various different types of signals.
Owner:SUZHOU ANGUI ELECTROMAGNETIC TECHNOLOGY CO LTD

Lightning stroke protection device for wind power equipment

The invention relates to the technical field of wind power generation, in particular to a wind power equipment lightning stroke protection device which comprises a supporting plate and a cloud server, the bottom surface of the supporting plate is fixedly connected with two supporting seats, the upper surfaces of the two supporting seats are both provided with electric-hydraulic push rods, and the telescopic ends of the two electric-hydraulic push rods are jointly connected with a lifting plate; the lifting plate is fixedly connected with a threaded connection seat, and an inner ring of the threaded connection seat is in threaded connection with a lightning arrester. According to the lightning protection device for the wind power equipment, through upward movement of the lifting plate and the lightning arresters, the height of the lightning arresters can be increased, so that the lightning arresting range is remarkably expanded, the risk that fan blades are located in a lightning protection blind area is effectively reduced, the overall lightning protection performance of the wind power equipment is improved, and the stability and reliability of operation of the wind power equipment are guaranteed; and after thunder and lightning occur, the lightning arrester can move downwards to be stored, the size of the lightning arrester can be reduced, and the wind driven generator can better receive wind energy for power generation work.
Owner:HUANENG XINJIANG SANTANGHU WIND POWER GENERATION CO LTD

Isolation bearing and lightning protection integrated structure

The application provides an isolation support and lightning protection integrated structure, and relates to the technical field of building engineering. The upper surface of the lower connecting steel plate is fixedly connected with a shock absorption laminated layer, the center of the shock absorption laminated layer is provided with a triggering mechanism, the upper surface of the shock absorption laminated layer is fixedly connected with a lower support plate, the edge of the upper surface of the lower support plate is provided with a connecting mechanism, the center of the lower support plate is rotationally connected with a rotating shaft, the middle position of the outer surface of the rotating shaft is fixedly connected with an inner rotating plate, the triggering mechanism accurately identifies the vibration amplitude, the linkage connecting mechanism unlocks the clamping assembly, the upper and lower support plates can flexibly adjust the relative position, the inner rotating plate is driven to turn to the stress side, the support mechanism is matched to form double reinforced support in the horizontal direction and the vertical direction, the building transverse displacement can be effectively limited, the support dislocation can be avoided, and the structural safety under high intensity earthquake is significantly improved.
Owner:BEIJING URBAN CONSTR GROUP

Hard connection lightning protection construction method for shock insulation

This invention provides a rigid connection lightning protection construction method for seismic isolation, belonging to the field of building construction technology. The method includes the following steps: welding a pre-reserved lightning protection flat steel bar inside the upper concrete structure of the seismic isolation layer to a 20mm diameter round steel bar; marking the lower concrete floor slab according to measured length values; welding a 500mm diameter circular steel plate to the lightning protection flat steel bar inside the lower concrete structure at the marked points; welding and fixing a 50mm diameter circular steel plate along its upper end face to install the lower lightning protection round steel bar; installing and fixing the top of the lower lightning protection round steel bar to the upper lightning protection round steel bar using a high-strength spring and steel sleeve; and fixing a spare current shunt component to the upper and lower sides of the lightning protection connection assembly. This invention allows the lightning protection connection to be displaced, and the connection is firm, ensuring the reliability of the lightning protection connection during seismic displacement.
Owner:CHINA CONSTR EIGHTH BUREAU DEV & CONSTR CO LTD

Equipotential mat using wire mesh netting

Disclosed is an equipotential (EPZ) matting for creating an equipotential zone at a work site. A wire mesh of the EPZ matting is constructed by first cutting desired lengths of cable and laying the lengths of cable parallel and adjacent to each other. The cables are then connected to one another at regularly spaced intervals along the cables using pressed metal ferrules. The connections are staggered as between adjacent cables to create an evenly spaced, open mesh pattern when the wire mesh is tensioned perpendicularly to the longitudinal axes of the cables when initially laid along side one another. The wire mesh is opened and pulled tight for use as EPZ matting on the work site. After work is completed, the mesh is closed and bundled for transport, storage, and re-use.
Owner:QUANTA ASSOCIATES LP

Novel lightning arrester and working method thereof

The invention belongs to the technical field of lightning arrester installation, particularly relates to a novel lightning arrester and a working method thereof, and provides the following scheme aiming at the problem that the whole device is not firm after installation due to inconvenient punching when the current lightning arrester is installed: the lightning arrester comprises an installation chassis, and stepped holes are respectively formed in the positions, close to four corners, of the upper surface of the installation chassis; a strip-shaped supporting column is fixed to the middle of the upper surface of the mounting base plate, an anti-disengaging clamping block is fixed to the top end of the strip-shaped supporting column, the length and the width of the anti-disengaging clamping block are both larger than the size of the top end of the strip-shaped supporting column, a groove-shaped clamping piece is slidably connected to the outer wall of the top end of the anti-disengaging clamping block in a clamped mode, and arc-shaped hinge grooves are formed in the positions, close to the edges of the two sides, of the top end of the groove-shaped clamping piece. Before installation, only the two U-shaped double-thread screws which are fixed together need to be fixed to the top end of the reinforcing mesh, the four threaded ends need to be exposed during pouring, then the installation chassis and the groove-shaped clamping piece are simply installed after concrete is solidified, and installation is convenient, fast and stable.
Owner:江西神黄电力电气有限公司

Lightning-protection heating ceramic tile

A lightning-protection heating ceramic tile, comprising a ceramic tile layer (1) and an enclosure (5), wherein one side of the enclosure (5) is attached to the inner wall of the ceramic tile layer (1); and a metal plate protective layer (2) and an electrothermal film heating layer (3) are both arranged inside the enclosure (5), the metal plate protective layer (2) fits onto the inner wall of the ceramic tile layer (1), and the electrothermal film heating layer (3) fits onto the metal plate protective layer (2). The electrothermal film heating layer (3) comprises an electrothermal film (31), a first lightning-protection module (34) and a second lightning-protection module (35), wherein a live wire and a neutral wire connected to the electrothermal film (31) are electrically connected to the first lightning-protection module (34) and the second lightning-protection module (35), respectively; and the first lightning-protection module (34) and the second lightning-protection module (35) are electrically connected to the metal plate protective layer (2). By means of the first lightning-protection module (34) and the second lightning-protection module (35) made from varistors, and when an overload occurs and when there is an excessive input voltage at a power-input-end quick connector, the first lightning-protection module (34) and the second lightning-protection module (35) direct a current to the ground.
Owner:DU JUN +1

Method for providing a grounding solution for lightning strikes

One example includes a method for generating a grounding solution for lightning strikes. The method includes determining a geographic location of a lightning-sensitive electrical device and receiving soil resistivity data of soil at the geographic location and a surrounding geographic region. The method also includes implementing a grounding solution algorithm. The algorithm includes converting the soil resistivity data to resistance values, calculating a quantity of grounding rods for the grounding solution based on the resistance values relative to a predefined ideal resistance value, and calculating a safety distance of mounting the grounding rods with respect to the lightning-sensitive electrical device based on the resistance values. The method further includes generating installation instructions for implementing the grounding solution by mounting the grounding rods in the geographic region based on the calculated quantity of grounding rods and the calculated safety distance.
Owner:FLORIDA POWER & LIGHT CO

Lightning arrester system and method with fault isolation and state notification functions

The invention discloses a lightning arrester system and method with fault isolation and state notification functions, and the system comprises a lightning arrester body, the high-voltage end of the lightning arrester body is connected with an external line, and the low-voltage end of the lightning arrester body is fixed on a second installation support; the other end of the insulating pillar is connected with the mounting bracket I; the separation unit is connected in series between the low-voltage end of the lightning arrester body and a grounding path, and is internally provided with a thermal explosion pipe; the trigger inverted rod is linked with the separation unit through a connection grounding wire and is rotatably mounted on the mounting bracket I; the signal unit is installed on the first installation support and communicates with the trigger inverted rod through a trigger signal line. When the leakage current is abnormally increased due to the fault of the lightning arrester body, the thermal explosion tube explodes to disconnect the separation unit, and the fault is isolated; and meanwhile, the trigger inverted rod is pulled to turn over, and the trigger signal unit sends out a remote notification containing position information. The problem that a traditional lightning arrester cannot be accurately isolated and positioned after a fault occurs can be solved, the function of the traditional lightning arrester is expanded through systematic design, and rapid fault isolation and positioning are achieved.
Owner:STATE GRID BEIJING ELECTRIC POWER CO

Electric vehicle charging controller and electric vehicle charger comprising same

An electric vehicle charger according to an embodiment of the present invention comprises an electric vehicle charging controller comprising an inlet comprising: an earthing pin coupled to a coupler and configured to connect a first earthing line connected to a first earthing power source in an electric vehicle power supply device and a second earthing line connected to a second earthing power source in an electric vehicle; a first signal pin coupled to the coupler and configured to connect a first signal line in the electric vehicle power supply device and a first signal line in the electric vehicle; and a second signal pin coupled to the coupler and configured to connect a second signal line in the electric vehicle power supply device and a second signal line in the electric vehicle, and a sensing unit connected to the electric vehicle power supply device through a third signal line and a fourth signal line so as to receive a third signal and a fourth signal. The inlet comprises a signal unit disposed between the second signal line and the third signal line, and configured to generate a second signal and then transmit same to the electric vehicle charging controller. The sensing unit comprises: a first processing unit electrically connected to the electric vehicle power supply device through the third signal line and the fourth signal line, and configured to receive the third signal and the fourth signal from the electric vehicle power supply device; a second processing unit for receiving the third signal and the fourth signal that a first sensing unit has received, and then transmitting same to a control unit; and an insulation unit for electrically isolating the first processing unit and the second processing unit from each other.
Owner:LG INNOTEK CO LTD

Lightning protection energy storage device for building

The invention is suitable for the technical field of lightning protection equipment, and provides a lightning protection energy storage device for a building, which comprises a mounting seat, a photovoltaic power generation panel and a lightning protection main needle, a supporting column is fixedly mounted at the top of the mounting base, a claw frame is fixedly mounted at the top end of the supporting column, a supporting disc is fixedly mounted at the top of the claw frame, a supporting cylinder is fixedly embedded in the circle center of the supporting disc, a supporting base is fixedly mounted at the top end of the supporting cylinder, and the supporting base is made of a conductive material. The supporting base is rotationally sleeved with an assembling cylinder, the assembling cylinder is fixedly sleeved with an assembling circular ring, and the supporting disc, the supporting cylinder, the assembling cylinder and the assembling circular ring are all made of insulating materials. According to the lightning protection energy storage device for the building, provided by the scheme, three-in-one arrangement of lightning protection, photovoltaic and energy storage is completed, the roof area does not need to be additionally occupied, and the defects that a traditional lightning rod is single in function and wastes space are partially overcome.
Owner:YUNNAN FANRUI CONSTRUCTION ENGINEERING CO LTD

Lightning rod with a lightning protection system isolated from the protected facility, with a power supply control unit that monitors the technical condition of its head

The subject of the invention is a lightning rod with a lightning protection system isolated from the protected facility, equipped with a power supply and control unit monitoring its head, which is characterized by the lightning rod head (1) consisting of a metal cylindrical housing (2) with an upper bottom (4), detachably connected to the blade (6), inside which its symmetry axis, there is an initiating system (7) entwined with the upper helical part (8) of the optical fiber (9.9'), electrically connected to this blade (6), and with the other end through the spark gap (15) electrically connected with the upper surface of the metal profile connector (17) and mechanically - inseparably with the sleeve shoulder (18) with the axial hole (29) of this connector with two through holes (27 and 28) made in it opposite the axial hole (29), in which both lower ends (8') of the spiral part (8) of the optical fiber (9, 9') are placed, and its further parts through the hole in the metal the connecting sleeve (35) and the through hole (39) of its bottom (37) and through the hole of the two-piece mast (42) and the through hole (56) of the metal tubular element (45) of this mast go out so that one end of the optical fiber (9, 9') is located opposite the LED light transmitter (57) of the power supply, control and monitoring unit (58) and the other end of this optical fiber is opposite the LED light receiver (59), while the insulated end (64) is connected to the connecting sleeve (35) of the insulated high voltage wire (65), the lower end of which is embedded in the ground (67) and connected to earthing (68) .
Owner:SMYCZ EUGENIUSZ

Fan blade lightning protection system and method

PendingCN121576239AConnection to earthMachines/enginesDistribution of lightningCurrent distribution
The embodiment of the invention provides a fan blade lightning protection system and method, and the system comprises a high-conductivity composite material layer which is disposed on the surface of a fan blade and is used for forming a lightning current conductive path; the current distribution optimization layer is connected with the high-conductivity composite material layer and used for regulating and controlling distribution of lightning current on the surface of the blade; the dynamic electromagnetic shielding module is arranged at the front edge of the fan blade and used for sensing a lightning electromagnetic field and dynamically adjusting the electromagnetic shielding effectiveness; the heat energy self-adaptive diffusion layer is arranged in the fan blade and is used for absorbing and diffusing heat generated when the lightning current passes through; the intelligent grounding system is electrically connected with the high-conductivity composite material layer and the fan main body structure and is used for guiding lightning current into the ground; wherein the dynamic electromagnetic shielding module and the intelligent grounding system can respond to the intensity or frequency change of lightning current to carry out self-adaptive adjustment.
Owner:STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED +3