172 results about "Grounding line" patented technology

This application discloses a grounding ring and an electromagnetic flowmeter. The grounding ring includes an insulating component with an annular structure and a first conductor component. The first conductor component is connected to the annular inner wall of the insulating component, and its side radially away from the insulating component along the annular structure contacts the fluid medium, serving to connect an external grounding line and the fluid medium. The electromagnetic flowmeter includes the grounding ring. This design achieves conductivity and corrosion resistance through the first conductor component, and utilizes the insulating component to provide structural support and insulation isolation. Compared to grounding rings in related technologies that use precious metals throughout, this design significantly reduces the amount of precious metals used while ensuring conductivity and corrosion resistance, thus lowering material procurement, manufacturing, and subsequent maintenance costs, achieving both functionality and economy.

The embodiment of the application provides an electric power grounding wire joint device with insulation protection, and relates to the technical field of electric power industry. The electric power grounding wire joint device comprises a base, a rotating rod movably sleeved on one side of the base, a first gear fixedly installed on one side of the rotating rod, a gear slot movably connected on the surface of the first gear, the gear slot being arranged on the outer wall of a limiting block, the two limiting blocks being sleeved on the inner wall of the base, a screw rod being threadedly connected to the central positions of the two limiting blocks, and a clamping plate being sleeved on one side of the screw rod. By rotating the rotating rod, the first gear is driven to rotate, the gear slots on both sides are driven to rotate through the meshing of the first gear, the limiting blocks are driven to rotate, and then the screw rods are driven to rotate. Since the two screw rods are limited in position, the screw rods can move up and down through thread transmission, so that the clamping plate is driven to move, thereby being limited and clamped with the inner wall of the base. The two sides can increase the supporting points, and the firmness of the limiting and clamping installation is improved.

The application discloses a substation indoor grounding wire state monitoring system, which comprises an RFID positioning unit, a positioning detection unit, a mechanical locking unit and a state monitoring unit. The RFID positioning unit is fixedly installed on the grounding end in the substation. The positioning detection unit and the mechanical locking unit are connected through a grounding rod. The mechanical locking unit is connected below the grounding end of the grounding rod. The leading wire above the grounding end is connected with the positioning detection unit through a wire. The state monitoring unit is connected with the mechanical locking unit and the positioning detection unit through a wireless communication module. The positioning detection unit comprises a grounding fastening assembly and an Internet of Things positioning module. The grounding fastening assembly is fixedly connected with the terminal end of the leading wire of the grounding rod. The Internet of Things positioning module is sleeved on the leading wire. The monitoring system integrates the positioning, mistake prevention and state monitoring requirements of the substation indoor grounding wire, overcomes the defects of the traditional management mode and realizes intelligent and standardized management.

This invention relates to the technical field of grounding fixtures for high-altitude operations, and discloses a grounding clamp comprising a first clamp body, a second clamp body, an elastic structure, and a collision rod. The second clamp body is rotatably connected to the first clamp body. The elastic force of the elastic structure drives the second clamp body and the first clamp body to maintain a clamped state to hold the target conductor. The tail end of the collision rod is rotatably connected to the first clamp body, and the head end is abutting against the second clamp body to maintain an open state or insert into an avoidance groove. One of the first and second clamp bodies has a hollowed-out groove at its head end. When clamped, the head end of the other clamp body enters the hollowed-out groove, causing the two clamp bodies to be misaligned and clamped. The elastic structure drives the two clamp bodies to continuously misalign until the conductor is clamped, and it can firmly clamp conductors with smaller outer diameters. Furthermore, by introducing a rotary joint, the first clamp body and the support rod can rotate freely, achieving a wider grounding protection range. A dual redundancy design of electric control and manual control is achieved through an electric tightening mechanism.

This present disclosure relates to a solar photovoltaic (PV) rail mounting system, which includes a mounting base, rails and rail mounting components, wind deflectors and wind deflector clamps, grounding wires and grounding wire connectors, inverters and inverter clamps, as well as mid clamps and end clamps for securing PV panels.This improvements to the mounting base, mid clamps, and end clamps enables faster and more convenient installation of wind deflectors using specialized clamps. They streamline the overall installation process, enhancing efficiency and stability while significantly reducing installation time.

The utility model relates to the technical field of wiring harness fixer, and disclose a millimeter wave radar wiring harness fixer, including lower clamping plate, one side of lower clamping plate top rotatoryly connected with upper clamping plate, the opposite side of lower clamping plate and upper clamping plate all are established with a plurality of rectangle slot, every rectangle slot's inside wall all are provided with U type sheet piling, the inner top wall of rectangle slot is established with mounting groove, the inside of mounting groove is provided with connecting assembly, the fixed component that is provided with between lower clamping plate and upper clamping plate. This millimeter wave radar wiring harness fixer, through replacing the clamping block and connecting assembly, make the same set of fixer can be compatible with different diameter's wiring harness, reduce the type of fixer in the development of vehicle type, reduce mould cost and inventory pressure, simultaneously, different function's wiring harness, such as power cord, signal line and ground wire can be fixed through different clamping block partition, be convenient for the quick identification and overhaul when maintaining later period, promote the efficiency of after-sales.

The present application relates to the technical field of small current grounding line selection, and provides a small current grounding line selection auxiliary increment device and method, a grounding transformer module for providing a neutral point for a target power system; the target power system is a system without grounding of the neutral point; a neutral point voltage detection module for detecting the voltage of the neutral point when a grounding fault occurs; an auxiliary increment module for selecting a corresponding input resistor according to the size of the voltage of the neutral point when the grounding fault occurs, so as to obtain an increment current matched with the voltage of the neutral point; the input resistor is used for connecting the neutral point; and a zero sequence current detection module for judging the grounding fault according to the increment current matched with the voltage of the neutral point. Through the above technical solution, the problem that the grounding line selection cannot be accurately judged according to the zero sequence current in the related art is solved.

The utility model discloses a small current grounding line selection device with grounding fault early warning relates to electric power equipment technical field, including cabinet, power module, acquisition subassembly, early warning subassembly, the acquisition subassembly fixed mounting is in the cabinet inner wall side, the acquisition subassembly contains current sampling board and voltage sampling board, the current sampling board is set on the bus, the voltage sampling board is connected on the open triangle winding of bus, the current sampling board is connected inductance through data line, the inductance outer wall other end connects transistor, the transistor is connected analog -digital converter through data line, the analog -digital converter is connected processor through parallel interface. The utility model discloses through acquisition subassembly and early warning subassembly, has realized the grounding fault early warning function, solved the problem of lacking effective early warning mechanism before the fault occurs, and the advance warning operation and maintenance personnel possible grounding fault, is favorable to the prevention measures of taking in time.

This utility model discloses a DC female connector with a U-shaped terminal block, including a housing, an insulating end cap, and a center pin. The insulating end cap is installed at one end of the housing, and one end of the center pin is installed at the center of the insulating end cap, while the other end extends into the interior of the housing. The end of the center pin facing the insulating end cap protrudes to form a welding part, and the exposed end of the insulating end cap protrudes to form an isolation part. This utility model has a simple structure. The welding part on the center pin is arranged in a "U" shape, allowing the connected wire to be inserted into the U-shaped cavity of the welding part for positioning before welding, ensuring the accuracy and strength of the weld. Furthermore, the welding part and the grounding wire are provided with an isolation part, greatly reducing the probability of contact between them and increasing safety.

A kind of copper clad steel grounding wire is used to straightening device, it is related to copper clad steel grounding wire straightening technical field, including mounting plate and the support frame for supporting mounting plate, a group of straightening rollers for extruding grounding wire is rotationally arranged on mounting plate, and once straightening area is formed between two straightening rollers, which can be passed through by grounding wire, first sliding plate capable of sliding along the direction perpendicular to the movement direction of grounding wire is arranged on mounting plate, and another straightening roller is rotationally connected with first sliding plate;Multiple auxiliary rollers are arranged on the side of straightening roller away from the entry of grounding wire, and multiple auxiliary rollers are respectively located at the two sides of grounding wire, so that secondary straightening area is formed between the two sides of auxiliary roller of grounding wire, which can be passed through by grounding wire, multiple second sliding plates capable of sliding along the direction perpendicular to the movement direction of grounding wire are arranged on mounting plate, and second sliding plate is located at the same side with first sliding plate, corresponding second sliding plate is rotationally connected with the side auxiliary roller, and the interval between straightening rollers can be adjusted to adapt to grounding wire of different diameters.

This utility model discloses a ruggedized switching power supply adapted to a switch, belonging to the technical field of switch connection equipment. It includes a switch, which is fixed to through slots on the front and rear mounting plates on both sides of a cabinet by screws. The rear side of the switch is provided with a grounding wire, a redundant power interface, and a power interface. A DC power plug and a three-prong plug are respectively inserted into the redundant power interface and the power interface. Symmetrical retaining plates are provided at the top and bottom of both sides of the switch, and the retaining plates on the same side are fitted onto guide rods. Baffles are fixed at the top and bottom of the guide rods, and a tensioning spring is fitted onto the guide rod between the symmetrical retaining plates. This ruggedized switching power supply can reinforce the connection of the redundant power interfaces and power plugs of existing switches, solving the problem of power plugs easily falling off at high positions inside the cabinet, preventing wire twisting at the junction of the power cord and plug, and maintaining stable operation of the switch over a long period.

This invention discloses a method and system for early warning of grounding wire breakage in armored shielded DC cables. The method includes: measuring the grounding current of the shielding layer and the grounding current of the armoring layer at both ends of the armored shielded DC cable; calculating the waveform similarity between the grounding current of the armoring layer and the grounding current of the shielding layer at each end; comprehensively judging whether a grounding wire breakage has occurred at each end based on the current amplitude, waveform similarity, cable operating status, and grounding grid health status; and issuing a corresponding breakage warning signal when a grounding wire breakage occurs. This invention can effectively improve the operation and maintenance level of substation secondary circuits.

This invention relates to the field of grounding wire management technology and discloses a monitoring and management system for intelligent grounding wires based on the BeiDou Navigation Satellite System. The system includes installing a wireless sensor on the top of a grounding operation rod to construct a set of grounding wire status parameters; using a decimeter-level single-frequency RTK matrix to construct a set of grounding wire positioning parameters; preprocessing the data; and then numbering and storing the preprocessed grounding wire status parameter set and grounding wire positioning parameter set. The system calculates status consistency, positioning matching, temporal correlation, and lifecycle; verifies the operation process and data validity based on the calculation results; and issues early warning signals based on the verification results. This system achieves intelligent monitoring, programmed control, and information-based early warning throughout the entire grounding wire usage process, replacing traditional manual operation and verification, avoiding human negligence and non-standard operation problems, eliminating hidden dangers such as missed removal, missed installation, and incorrect sequence, and ensuring personal and equipment safety.

This utility model discloses a temperature and humidity resistant static eliminator, comprising a shell, which is an integral structure. A high-voltage input line is inserted into the right end of the shell, and a grounding wire is installed inside the shell and connected to the ground wire of the high-voltage input line. A left end cover is provided at the left end of the shell, and an LED indicator is provided on the left end cover. This utility model solves the problem that static eliminators have a short service life or become unusable in high-temperature and high-humidity environments.

This invention discloses a graphite grounding device, buried in a foundation pit. A metal core column is arranged within the pit, with permeable holes on its sidewalls. The metal core column has a water channel connected to an external water supply source, and the permeable holes are connected to the water channel. The metal core column is electrically connected to a grounding wire. A graphite cylinder is fitted onto the metal core column, and the two are electrically connected. The graphite cylinder has a through hole connected to the permeable holes. One end of a flexible graphite grounding wire is fixed to the metal core column and electrically connected. Multiple flexible graphite grounding wires are arranged sequentially along the length of the metal core column. This invention, by setting a metal core column inside the graphite cylinder, ensures a reliable electrical connection between the grounding device and the grounding wire. An external water supply source can supply water to the water channel, with water flowing out through the through hole. This design increases the soil moisture around the grounding device, reduces grounding resistance, and improves the grounding effect. The flexible graphite grounding wires can fully contact the soil, thereby improving the grounding effect and reducing grounding resistance.

This invention discloses a method, device, equipment, and medium for determining the grounding status of a grounding stake. When the contact of the code reading area in the grounding socket comes into contact with the contact of the coding area in the grounding head, the contact coding data corresponding to each conductive contact in the grounding socket is acquired. A preset feature key value database is retrieved according to the contact coding data to determine the corresponding target grounding wire. The target voltage level of the target grounding wire is compared with the standard voltage level corresponding to the associated grounding equipment. If the target voltage level matches the standard voltage level, the grounding status of the grounding stake to be judged is determined to be normal. This invention solves the technical problem that traditional grounding stake installation methods cannot monitor the grounding status of the grounding wire in real time. It enables the determination of the installation or removal status of the grounding wire, identifies the grounding wire number, and determines the grounding status of the grounding stake.

This application provides a method, apparatus, medium, and equipment for locating cable defects based on a terminal grounding wire. The method includes: injecting a broadband pulse current signal with a predetermined repetition frequency into the cable grounding wire at the terminal connection of an in-service cable; acquiring the current signal from the cable grounding wire; and analyzing and diagnosing the current signal in the time or frequency domain to locate potential defects in the in-service cable. This application can solve the problems of needing to disconnect the cable system topology, exposing cable cores, and poor on-site anti-interference capabilities when diagnosing faults.

This utility model relates to the field of grounding device technology and discloses an electrical equipment grounding protection device, including a device body and a grounding pin. A grounding wire is connected to the device body, and the grounding pin is connected to the grounding wire. A protective shell is fixedly installed on one side of the device body, and a sealing plate is bolted to one side of the protective shell. The grounding wire passes through the protective shell and extends to the outer bottom of the protective shell. A wire-laying seat is fixedly installed on the inner wall of the bottom of the protective shell, and a first wire groove is formed on the wire-laying seat. A clamping plate is slidably installed on the inner side of the protective shell, and a second wire groove is formed at the bottom of the clamping plate. This utility model, through the protective shell, wire-laying seat, first wire groove, clamping plate, and second wire groove, facilitates the organization and storage of excess grounding wire, preventing excess grounding wire from getting tangled and damaged, and thus effectively protecting the grounding wire.

The embodiment of the application provides an auxiliary wiring device for live test of a lightning arrester, comprising a clamping assembly, a rotating assembly and a rotary bearing, the clamping assembly is used for electrical connection with a leakage current of the lightning arrester, and the clamping assembly comprises a connecting part. The rotating assembly comprises at least two detection parts and a grounding part, the rotating assembly can rotate relative to the clamping assembly, so that the connecting part is electrically connected in at least two detection parts and the grounding part, to realize function conversion. The rotary bearing is arranged between the rotating assembly and the clamping assembly. The auxiliary wiring device provided by the application realizes one-time clamping and fixing through the clamping assembly, realizes multiple function switching through the rotating assembly provided with at least two detection parts and a grounding part, and does not need to repeatedly detach a temporary grounding wire and a test wire, so that the time consumption of the whole wiring and detaching process is greatly shortened, the on-site operation efficiency is improved, the test operation links are significantly reduced, and the personal safety hidden danger is reduced.

The application relates to a method for supplying power (20) to an electrolysis plant (100) with several electrolyzers (12.1, 12.2, ... 12.n) and several power converters (10.1, 10.2, ... 10.n). The electrolyzers (12.1, 12.2, ... 12.n) are connected to their respective power converters (10.1, 10.2, ... 10.n) via DC lines (DC+, DC-). The power converters (10.1, 10.2, ... 10.n) are electrically connected in parallel to each other on the AC side, in particular via a transformer (16), to an AC network (18). During operation of the electrolysis plant (100), at least one DC line (DC+, DC-) has a fixed reference to earth potential (PE), in particular by at least one DC-negative line (DC-) being connected to earth potential (PE). The procedure indicates: - Setting the respective DC currents to the electrolyzers (12.1, 12.2, ... 12.n) by the respective power converter (10.1, 10.2, ... 10.n) to supply the associated electrolyzers (12.1, 12.2, ... 12.n) depending on the respective electrolyzer setpoints (SP1, SP2, ... SPn), - Determining the current ground reference of the electrolyzers (12.1, 12.2, ... 12.n), and - Limiting the absolute values ​​of DC_minus earth voltages (MU1, MU2, ... MUn) of the DC_minus lines (DC-) relative to earth potential (PE) to a predefinable earth voltage limit value. The application also concerns a power supply (20) for an electrolysis plant (100) and an electrolysis plant (100).

The application relates to a metal joint sealing device for double-head grounding wires, which comprises a pipe winding disc, a pipe feeding mechanism, a pipe cutting mechanism, a rotating disc, a guide mechanism, a positioning block, a sealing block, a hot air blowing mechanism and a workbench; a plurality of work stations are evenly arranged on the rotating disc; each work station comprises two axial through holes, and the outer sides of the two axial through holes are respectively provided with a first slot; the sealing block is provided with two sealing channels on the top, and the upper ends of the two sealing channels are respectively provided with a second slot. The device has the advantages of ingenious design, reasonable and perfect structure, feeding, cutting and safe heating and sealing, time and labor saving, safety and reliability; the first slot and the second slot are designed to ensure that hot air enters the sealing channel and the axial through hole during hot air blowing, and to solve the problem that once the heat shrink tube is not normally sleeved on the double-head grounding wire, the heat shrink tube is bonded or stuck in the sealing channel or the axial through hole after being heated, and the first slot and the second slot can remove the waste heat shrink tube.

This utility model discloses an anti-static workbench for photovoltaic module stacking, belonging to the technical field of anti-static workbench technology. It includes a workbench with an insulating pad on top. A grounding wire is fixedly installed at one end of the insulating pad, contacting the ground. Multiple posts are fixed to the bottom of the insulating pad. Multiple slots are provided on the top of the workbench, with each post corresponding to one of the slots. The posts and slots slide in each other. A trapezoidal hole communicating with a slot is provided on one side of the workbench, with a limiting rod slidingly fitted inside the trapezoidal hole. A limiting hole is provided on one side of each post. When the post is inserted into the slot, the limiting hole aligns with the trapezoidal hole, and the limiting rod passes through the trapezoidal hole and inserts into the limiting hole. This utility model greatly improves the ease of installing and removing the insulating pad, increasing work efficiency.

This utility model discloses a metal casing for electromagnetic shielding, including an upper casing, a lower casing, and a grounding wire. The upper and lower casings have spaces for placing electronic products. The lower casing is connected to the grounding wire, which is used to connect to a grounding system. The upper and lower casings are detachably connected. A plug-in ring is provided at one end of the upper casing facing the lower casing, and the lower casing has a wall groove adapted to the plug-in ring. Conductive rubber is provided between the upper and lower casings. By providing conductive rubber at the joints of the metal casing, the impedance of the electrostatic discharge path is significantly reduced, effectively solving the high impedance problem caused by holes and gaps in traditional casings, preventing the enhancement of the electric field caused by charge accumulation. The conductive rubber not only provides excellent conductivity but also enhances the sealing of the casing, preventing moisture and dust intrusion.

The present disclosure relates to a strip element configured to be internally or externally, fixedly or removably provided to an absorbent hygiene article, such as a diaper. The strip element comprises at least one sensing element for obtaining excretion-related information in a hygiene article such as a diaper, the sensing element having a capacitor electrode, a signal line, and a ground element such as a ground electrode and / or ground line. The capacitor electrode and the ground element are for measuring an impedance. The capacitor electrode is electrically connected to the signal line. The sensing element further comprises a shielding component provided between the signal line and the ground element. The strip element is configured such that an electric potential of the shielding component synchronously oscillates with an electric potential of the signal line.

The utility model relates to line simulation test device technical field, and disclose a kind of 10KV line ground line selection simulation test device, including equipment box, the outer wall of the equipment box is rotatably connected with top cover, and the inner chamber of the equipment box is installed with simulation line module.The 10KV line ground line selection simulation test device, by the locking seat being set in the equipment box inner chamber, and the drive gear and the moving rack being set in the inner chamber of locking seat, when rotating knob, the rotation of drive gear can be driven, to realize the drive of moving rack, so that moving rack moves along the inner wall of locking seat to both sides, so that locking plate enters the inner chamber of equipment box, to realize the locking of locking seat, the other end of fault occurrence module and simulation line module is locked, so as to be fixed under the action of fixing seat and locking seat respectively to fault occurrence module and simulation line module.

The application relates to the field of cable manufacturing, in particular to an aluminum alloy cable for charging new energy vehicles, which comprises a power line, a grounding line and a sheath, the sheath being wrapped outside the power line and the grounding line; wherein the power line comprises an inner layer conductor, an outer layer conductor wrapped on the inner layer conductor and a first insulation layer wrapped on the outer layer conductor; the inner layer conductor is composed of 6-series aluminum alloy strands; and the outer layer conductor is composed of 6-series aluminum alloy strands and 8-series aluminum alloy strands. In the application, the 6-series aluminum alloy strands are used as the center strands to improve the overall tensile property of the power line conductor, and the 8-series aluminum alloy strands are twisted in the outer layer conductor to improve the flexibility of the overall cable under repeated bending environment, so that the power line conductor is prevented from being damaged due to frequent bending.

This invention relates to the field of anti-misoperation interlocking systems and provides an intelligent diagnostic method for anti-misoperation interlocking systems in new energy power plants. The method includes: constructing and dynamically updating a topology model representing the real-time electrical connections of the power plant by real-time access and fusion of multi-source state information from the power grid data acquisition system, relay protection devices, intelligent grounding wires, and environmental sensors; based on this, using a knowledge graph reasoning model to traverse and detect conflicts in a static anti-misoperation rule base to diagnose logical vulnerabilities; combining historical operational data with a machine learning model to identify potential risk patterns and rule blind spots to improve diagnostic results; analyzing the time-series data of locks and sensors using a predictive model to identify hardware performance degradation trends and fault risks; and finally, synthesizing all the above diagnostic and identification results to generate a structured report. This effectively improves the safety level and adaptive reliability of new energy power plants in complex operating environments.

The application relates to the technical field of electric power engineering, and discloses a temporary grounding device for electric power engineering construction operation, which comprises a metal frame and further comprises a winding part arranged on the metal frame, a receiving part arranged on the left side of the metal frame and a replacement part arranged on the metal frame. The winding part comprises a winding assembly arranged on the metal frame, and a limiting assembly arranged on the winding assembly. The winding assembly comprises a metal rotating shaft rotatably connected to the metal frame. The temporary grounding device solves the problem that the existing electric power engineering temporary grounding device lacks a matching receiving function during use, so that grounding poles, grounding wires, grounding clamps and other components are easily scattered and stacked and entangled with each other during receiving, which causes inconvenience in taking and time consumption in arranging, thereby affecting the construction efficiency on site and the service life of the grounding device.

This utility model relates to the field of mechanical engineering technology and discloses an automatic lubrication device for a crusher, including a base and a crusher body. An oil storage tank is fixedly connected to the top of the base. An oil pump is installed at the end of the oil storage tank away from the base, and an oil delivery pipe is fixedly connected to the output end of the oil pump. An oil injection pipe is fixedly connected to the top of the crusher body. A refueling pipe is installed on the side of the oil storage tank away from the crusher body. A quick-release filter assembly is installed inside the refueling pipe. A controller is installed inside the oil storage tank, and a collector is fixedly connected inside the oil storage tank. A grounding wire is fixedly connected to the side of the collector away from the oil storage tank. In this utility model, through the cooperation of the collector, grounding wire, connecting post, and electrostatic spring, the generated static electricity is promptly conducted to the ground, improving the safety of the automatic lubrication device in flammable and explosive environments.