310 results about "High tension leads" patented technology

The invention provides a testing device and a testing method of electricity-heat-mechanical stress three-factor combined ageing for transformer paper oil insulation ageing study; the testing device comprises an electric heating ageing oven, in which a transformer paper oil insulation simulator, a shake unit and a temperature control device used for controlling the temperature of the electric heating ageing oven. The shake unit can drive the simulator to vibrate, the simulator is electrically connected with a high-voltage power supply; the testing method includes vacuum drying and oil impregnation of insulating paper, attaching the paper to the earth electrode in a stainless steel case of the testing device, winding coils as a high voltage electrode outside the insulating paper and the earth electrode and injecting insulating oil to the stainless steel case; connecting a high tension lead with the high-voltage power supply and starting the shake unit; sampling the insulating paper and the insulating oil alternately and measuring insulation ageing parameters.

A multi-jacket electrical cable that includes an inner insulation jacket wrapped around or extruded onto one or more electrical conductors and an outer insulation jacket that is wrapped around or extruded onto the inner jacket and is removable therefrom. Each jacket includes a different characteristic such as color, texture of pattern. A user of the electrical cable of the present invention can designate the wire to be used for a particular purpose, such as a ground wire, or a high voltage wire, by removing a jacket until an inner jacket is exposed, where the exposed jacket has a characteristic that matches the user's desired intention for the wire.

The invention relates to a single photon counting and imaging detection device. A high-voltage power supply of the device is connected with a micro-imaging reinforced tube through a high tension lead; a display, an image processing device and a printer are connected with a computer respectively; an anode collector is arranged between the micro-imaging reinforced tube and a preamplifier; the anode collector comprises a substrate, an electrode plated on the substrate and a signal lead; an anode is connected with the preamplifier through the signal lead; and the micro-imaging reinforced tube comprises a photocathode and a microchannel plate connected with the photocathode which are arranged sequentially along a light path. The device has the characteristics that the device can read out a time mark for arriving time and a general image of integral in a period, realize the single photon counting and two-dimensional imaging detection of an extremely-weak object, has the function of single photon counting, and can perform two-dimensional imaging on the extremely-weak luminous object. The device has the advantages of large area array, high sensitivity, low dark count, high resolution factor, good imaging linearity and the real-time measurement and processing.

The invention provides a method for measuring an impact current division coefficient of a power transmission line tower with a lightning conductor. The method comprises the steps of firstly, collecting tower parameters, including the diagonal length of a tower grounding device and the form of the tower, secondly, driving an auxiliary grounding electrode in ground near the tower in such a manner that the distance between the auxiliary grounding electrode and the tower is more than two times the diagonal length of the tower grounding device, connecting a high-voltage end of impact power output with a current divider in series through a high-voltage conductor and then connecting to the joint of the tower and the lightning conductor, and connecting a low-voltage end of impact power output with the auxiliary grounding electrode, wherein the resistor R of the current divider is a high-precision non-inductive resistor of 0.01 ohm. The method is capable of measuring the impact current division coefficient of the power transmission line tower with the lightning conductor, avoiding errors caused by theoretical assumption and improving the accuracy of lightning protection counterattack calculation of the power transmission line.

The invention relates to a high-voltage conductor end ground clamp, comprising a hook with a ground conductor end, wherein the hook is internally and respectively connected with two rotatable tongue sheets, the two tongue sheets are oppositely arranged to form a splayed clamping opening for clamping a conductor, the hook is further provided with a locking block which is rotatably connected with the hook through a connection pin shaft; the locking block consists of two locking plates, a connection rib and a limiting plate; the two locking plates are respectively arranged at the front and the back of the hook, the connection rib is connected with the two locking plates, and the limiting plate is connected with the hook and then is adhered on the side surface of the hook; the connection pin shaft is internally sleeved with an inner side surface, a torsion spring and an insulating pull rope; the two ends of the inner side surface respectively prop against the hook, the torsion spring is arranged on the connection rib of the locking block, the insulating pull rope is fixed on the locking block and is used for pulling the locking block to rotate, the side edge of the lower part of each locking plate is provided with an inclined line conveniently guiding the conductor into the hook, the edge of the upper part of each locking plate is provided with an arc clamping opening matched with the conductor, the arc clamping opening is used for clamping double tongue sheets, and the conductor is clamped so as to prevent the conductor from moving downwards and to be fixed completely; and under a high wind environment, the conductor generates wave and can be prevented from withdrawing from a clamp.

The invention provides a test unit for monitoring an oil-paper insulation state, and is suitable for the fields of transformers and oil-paper insulation monitoring. The test unit comprises a computer, an electrometer and a control bus communication cable; a high voltage DC power source and an ammeter are arranged in the electrometer; one end of the control bus communication cable is connected with a control bus interface of the electrometer, while the other end is connected with an interface of a control bus control card in the computer; a low voltage end interface of the high voltage DC power source and a grounding interface of the electrometer are grounded together; a high voltage end of the high voltage DC power source is connected with a first electrode of a product to be tested through a high voltage wire; a measuring end of the ammeter is connected with a second electrode of the product to be tested; and the test unit is provided with a control panel capable of displaying and storing data and setting parameters. The test unit is simple to operate, has the current detecting rate at least 1sps, can generate rich measurement information, is convenient to analyze and process test results, and has lower cost than foreign test instruments.

The invention relates to an anti-freezing heating functional coating for a transmission line conductor. In the invention, a low Curie temperature ferromagnetic filler with a heating function is addedinto the coating and coated on the outer surface of the conductor or conductor monofilament under the action of an alternating magnetic field of a high voltage conductor, and the low Curie temperatureferromagnetic material can generate energy loss to release heat under the action of the alternating magnetic field of the high voltage conductor so as to prevent or postpone frozen freezing rain on the conductor surface. The coating has good ice-coating resistant and anti-icing effect, low energy consumption, low cost, simpler construction, no need of any line reconstruction and very wide application prospect.

This invention relates to a method for exchanging tension-proof insulator strands used in high voltage transmission lines and a devie, which installs a front and a back clamp for anchoring and stringing leads and a connection clamp of an anchor line at two places of connecting metals of a lead end and a horizontal end constituting a vertical pulley set for stringing the insulator strand and the connecting metal at both sides between the strand and the connecting metal, strings the pulley set synchronously and slowly to string one-side two high voltage leads, then to string the anchor line and the anchor lead, at the same time, removes the connection of the insulation strand and the connecting metal, relaxes the pulley set slowly to transfer the lead tension to the anchor line completely, therefore, when the lead is anchored, the original tensioned insulation strand is relaxed to a vertically hanging one for exchange, and the tighten, anchor of the lead and separation of the the insulator strand and the metal are finished at one run.

A magnetic force suspension robot for the operation of an overhead high-tension power transmission line comprises two suspension bushes (8), wherein the suspension bushes (8) can be opened or closed and are in central symmetry with a high-tension lead wire (9), each suspension bush (8) comprises a rectangular coil (4), an inner lining bush (1), a magnetic core (2) and an outer lining bush (3), and each inner lining bush (1), the corresponding magnetic core (2) and the corresponding outer lining bush (3) are arranged from inside to outside in sequence. The magnetic force suspension robot for the operation of the overhead high-tension power transmission line has the advantages that the robot can be suspended above the high-tension lead wire, zero contact and zero friction between the robot and the high-tension lead wire are achieved, and thus harmful abrasion and harmful moving loads are eliminated. Under the condition that driving force is available, the moving speed of the robot can be improved greatly through the zero contact and zero friction modes. Through the magnetic force suspension mode, the complexity of the moving mechanism of the robot can be lowered, and the light-weight trend of the robot can be achieved. A magnetic force suspension device is small in size, low in cost and easy to achieve.

The invention discloses a monitoring equipment power supply system for high voltage capacitor step-down electricity taking of a tower pole line. The power supply system comprises an electricity taking module, a voltage-stabilizing module, a DC / DC conversion module and a voltage comparison control module. The electricity taking module comprises a high-voltage wire, a high-voltage capacitor, a voltage transformer and an insulator. The high-voltage capacitor is connected with the insulator in parallel. A thermal explosion type disconnector is arranged between the high-voltage capacitor and the high-voltage wire. The high-voltage capacitor is connected with the voltage transformer in series and outputs 220 v voltage on the secondary side of the voltage transformer, the voltage is converted into a small current after being transmitted to the DC / DC conversion module through the voltage-stabilizing module, and then the current is transmitted to monitoring equipment. The output end of the DC / DC conversion module is connected with a fault signal return module and the voltage comparison control module. Compared with a traditional wind-solar power storage scheme, the design cost of the power part of a tower monitoring system is greatly reduced; besides, the power supply system can monitor running for a long time, is economical and practical and thoroughly solves the problem that the electricity taking of the tower is difficult.

A magnetic force drive robot for overhead high-tension transmission line operation comprises two openable drive tiles (1) which are in central symmetry about a high-voltage wire (5). Each drive tile comprises a lining tile (3), a magnetic core (2), a magnetic core cover (6) and a rectangular coil (4), wherein the magnetic core cover (6) is matched with the magnetic core (2). The magnetic force drive robot has the advantages that due to the fact that a traditional wheel track drive method is replaced, the slipping problem of the robot is thoroughly solved; a drive mechanism is simplified, the cost, robot weight, energy consumption and the robot size are reduced; the moving speed of the robot can be improved.

The invention discloses a laser shock peening method for an outer intensified electric field. The method comprises the steps as follows: a laser shock peening device for the outer intensified electric field is provided, wherein the laser shock peening device for the outer intensified electric field comprises a high-powder Q-tuning laser shock peening power supply, a Q-tuning high-pulse energy laser device, a high-voltage power supply, a copper pole plate coupled to the high-voltage end A of the high-voltage power supply, an automatic spray device, a work bench and a six-axis manipulator; a DSP control system is internally built inside the high-powder Q-tuning laser shock peening power supply to achieve control of the intensified electric field and a laser shock peening time sequence; a light hole is formed in the center of the copper pole plate to ensure that the laser passes through the light hole; a work-piece is connected with the low-voltage end B of the high-voltage power supply through a high-voltage lead; the strong electric field of 100000-3000000V / m exists in the laser shock peening area; the laser is loaded before exiting, so as to affect the plasma excitation and constrained states of the laser shock peening process, and improve the laser shock peening efficiency and effect.

The invention discloses a dual-coil magnetic force driving device for a high-voltage line inspection robot. The dual-coil magnetic force driving device comprises a driving body. The driving body is composed of an upper openable driving engine body and a lower openable driving engine body which are centrally symmetric about the high-voltage lead, the driving device is characterized in that the upper driving engine body and the lower driving engine body both comprise a magnetic core, a layer, a large rectangular coil and a small rectangular coil, wherein the magnetic core and the layer are arranged in an attached mode in the axial direction of the high-voltage lead, and the large rectangular coil and the small rectangular coil are alternately wound around the magnetic core and the layer. Under the same size, compared with the prior art, the driving force of the dual-coil magnetic force driving device reaches 50% or above, a magnetic field generated by high-voltage current on the high-voltage lead is used for ampere force of an electrified coil so that a robot can move, and a traditional wheel rail type driving mode is replaced, so that the problem that the robot skids is solved; the driving mechanism is simplified, the cost is lowered, the weight, energy consumption and size of the body are lowered, and the movement speed of the robot can be improved.

An insect killing lamp able to automatically remove the dead insects is composed of lamp cap, attracting lamp tube under lamp cap, a high-voltage grate surrounding said lamp tube and composed of positive and negative high-voltage lines arranged sequentially, an insect collector under the lamp tube, and brush close to said high-voltage grate and driven by motor controlled by time chip for timely removing the dead insects from said high-voltage grate.

The invention discloses a supporting and protecting device for a high-speed wind tunnel plasma flow control experiment. The supporting and protecting device for the high-speed wind tunnel plasma flow control experiment comprises an aerofoil-profile insulation protecting and supporting device and an electromagnetic shielding and protecting device; the aerofoil-profile insulation protecting and supporting device comprises a side wall pivoted window structure and an attack angle mechanism supporting platform; the electromagnetic shielding and protecting device comprises multiple layers of shield high-voltage leads and a grounding copper foil wide band. The supporting and protecting device provided by the invention can be used for guaranteeing the insulation among a model, a side wall pivoted window and a supporting platform and the insulation between fixing screws and ear sheets, meanwhile also guaranteeing the intensity of the side wall rotary window and the supporting platform, additionally enabling induction electromagnetic fields to be attenuated layer by layer by adopting multiple layers of shielding high-voltage leads, meeting the safety of voltage and electromagnetic shielding requirements of measurement and control instruments, and reducing the induced voltage caused by the transmission lead radiation electromagnetic fields greatly by adopting copper foil broad band ground connection.

The invention discloses a loop interlock diagnosis circuit and method. Loop interlock is a common method for electric vehicles to check the electrical integrity of all high-voltage components, high-voltage wires and connectors by using small electrical signals to connect all high-voltage components in series. By detecting the frequency and voltage amplitude of the loop interlock signal, the invention can accurately judge three faults of the loop interlock: open circuit, short circuit to power supply and short circuit to ground. Cooperating with the pull-down resistors of each high-voltage component node of the loop interlock, it can quickly and quickly locate which high-voltage component disconnection causes the loop interlock (HVIL, the same below) to disconnect, saving time and cost for maintenance.

The present invention is directed to a connector housing for high voltage wires, either single ended or double ended with an integrated connector. Other features of the present invention include integration of a deep recessed high voltage connector contact for an arc and leakage resistant high voltage connection point, use of a female socket pin embedded at the base of the connector. The socket pin is co-molded into the connection end of the body, or it is co-molded or press fitted into a hole at the end of the connector housing.

The invention discloses a magnetically-driven rotary deicing device of a deicing robot for overhead high-voltage transmission lines. Magnetic fields around high-voltage current act on an energized line to produce ampere force to drive the deicing device of the robot to rotate; the deicing device comprises two magnetic cores which are identical in structure, can be opened and closed and can be in central symmetry about the high-voltage line after being closed, and the deicing device comprises the magnetic cores and winding rectangular coils. Thus, the deicing device has the advantages as follows: 1, the deicing device of the robot can rotate due to the magnetic drive rotation toque, a traditional method that motors drive mechanisms to rotate is broken through, and problems that the robot is heavy due to multiple motors and the like are effectively solved; 2, the deicing speed of the deicing robot for the overhead high-voltage transmission lines can be increased; 3, different from the existing magnetic pole type drive principle, the device produces ampere force drive for energized coils by using magnetic fields around the high-voltage lines, and the design is novel; 4, the deicing device is small in size, light in weight and low in production cost.

The invention relates to the field of insulated gate bipolar translator (IGBT) driver design, in particular to a high-voltage high-power IGBT driver based on digital control. The IGBT driver comprises a drive main control panel and a drive adaptive panel. The drive main control panel is connected with three output terminals of the drive adaptive panel through high-voltage insulation guide lines. The drive adaptive panel is fixedly connected with a collector, a grid and an emitter of an IGBT through screws, and the drive main control panel is connected with the collector of the drive adaptive panel mounted on the IGBT through a single high-voltage guide line. The drive main control panel is connected with the grid and the emitter of the drive adaptive panel mounted on the IGBT through double-twisted high-voltage guide lines. The drive main control panel has a function of changing single power input to driving double power output, and the drive adaptive panel has functions of grid protection and active clamp. The high-voltage high-power IGBT driver based on digital control has the advantages of being safe and reliable, and through the digitally controlled IGBT driver, is simple and intelligent in control, and capable of controlling the specific process of switch-on or switch-off of the IGBT, and has unique advantages.

This invention relates to one electricity resonance wave wireless tester circuit device and its work method, wherein, the device comprises wireless send device to collect electricity voltage signals and wireless receive device to display the resonance content; in wireless send device, electrode is near high voltage conductive wires to collect the voltage in contact or non-contact types; signal collection process is to couple field voltage to test voltage; CPU unit analyzes the each wave content according to the test voltages; send module is to modulate the content information to be sent from electrode; wireless receive device is to receive and display each wave content.

The discloses a self-locking wire end earthing clamp which comprises a wire holder main body, a sub wire clamp and an angle adjusting mechanism, the earthing clamp provided by the invention utilizes a resetting self-lock principle to realize the purpose of clamping high-pressure wire, a clamp head is splayed and closed through only drawing back and relaxing a bracing wire, thereby thereby quicklycompleting the clamping of the high-pressure wire and loosen action, and operation is very simple; in addition, the earthing clamp is provided with the angle adjusting mechanism, the angle adjusting mechanism is utilized to regulate an angle between the wire clamp and an operation rod according to the requirements, thereby adapting to relative position variation of an operator and the tested high-pressure wire.

The invention discloses an isolation passive high-voltage electrified indication device, comprising am energy emitting end and an energy receiving end; the energy emitting end comprises a high-voltage polar plate, a middle polar plate, a first rectifying voltage stabilizing circuit and an emission circuit; the high-voltage polar plate is connected with a high-voltage lead in a switch cabinet; the middle polar plate and the high-voltage polar plate are correspondingly arranged in parallel to form a capacitor structure. The energy receiving end comprises a receiving circuit, a second rectifying voltage stabilizing circuit, a control module and an alarm circuit; the first rectifying voltage stabilizing circuit performs rectifying and voltage stabilizing on the current from the high-voltage polar plate and the middle polar plate and outputs the current to the emission circuit; the emission circuit transmits the energy to the receiving circuit in a wireless electromagnetic wave coupling mode; the second rectifying and voltage stabilizing circuit performs rectifying and voltage stabilizing on the energy received by the receiving circuit and provides the energy to the subsequent control module and the alarm circuit. Air isolation is adopted between the emission circuit and the receiving circuit. The safety is good. The scheme is suitable for the electrified detection on a high-voltage switch cabinet.

The invention discloses a pre-combustion chamber structure of a fuel gas engine. The pre-combustion chamber structure of the fuel gas engine comprises a high-voltage guide wire sleeve, a pre-combustion chamber body, a spark plug, a one-way valve and a spray nozzle, wherein the lower end of the pre-combustion chamber body is provided with a pre-combustion chamber upper cavity; a spark plug mountinghole is formed in one side above the pre-combustion chamber upper cavity; a one-way valve mounting hole is formed in the other side above the pre-combustion chamber; the one-way valve mounting hole communicates with the pre-combustion chamber upper cavity through a gas inlet channel; the high-voltage guide wire sleeve is fixedly arranged at the upper end of the pre-combustion chamber body; the upper end of the spray nozzle is provided with a pre-combustion chamber lower cavity; the spray nozzle is arranged at the lower end of the pre-combustion chamber body; the pre-combustion chamber lower cavity and the pre-combustion chamber upper cavity of the pre-combustion chamber body define a pre-combustion chamber cavity; and the lower end of the spray nozzle is provided with a spray channel which communicates with the pre-combustion chamber lower cavity. The pre-combustion chamber structure of the fuel gas engine forms relatively great ignition energy through combustion of a high-concentration natural air mixture to ignite the relatively thin gas mixture in a primary combustion chamber, so that the purpose of improving power and heating efficiency of the whole machine is achieved.

The invention relates to an electro static discharge protective circuit for a circuit board interface, which comprises a high voltage conductor layer, a low voltage conductor layer and a protected circuit with a signal interface. The protected circuit is electrically connected between the high voltage conductor layer and the low voltage conductor layer. An electro static storage circuit is arranged between the high voltage conductor layer and the low voltage conductor layer. A first diode circuit is arranged between the high voltage conductor layer and the signal interface, the positive pole end of the first diode circuit is connected with the signal interface, and the negative pole end of the first diode circuit is connected with the high voltage conductor layer. A second diode circuit is arranged between the low voltage conductor layer and the signal interface, the negative pole end of the second diode circuit is connected with the signal interface, and the positive pole end of the second diode circuit is connected with the low voltage conductor layer. When an electrostatic discharge event occurs at an external interface circuit, electrostatic charges are transmitted to the conductor layers through the diode circuits and are absorbed by the electrostatic storage circuit between the conductor layers, and the absorbed charges are released in the ways of protected circuit leakage and the like, thereby achieving the purpose of electrostatically protecting the protected circuit.

The invention discloses a high-voltage heavy-current electronic switch, which comprises a transistor circuit, a drive isolation circuit and a drive circuit. The transistor circuit comprises multiple groups of transistors T in series-parallel connection; the drive isolation circuit adopts isolation transformers of the same number as the transistors T in serial connection; the magnetic core of each isolation transformer is an annular magnetic core; the primary sides of all isolation transformers are the same high-voltage lead A resisting voltage of over 10,000 V; the high-voltage lead A continuously passes through the inner rings of all magnetic cores once; the secondary sides of the isolation transformers are multiple leads a1-a6 winding the annular magnetic cores at the same time; and each secondary side drives a transistor T. Through the high-voltage heavy-current electronic switch disclosed by the invention, the voltage and current capacity of an electronic device can be quickly and stably improved, the drive is simple and the cost is low.

The invention provides an electronic type voltage transformer, which is characterized in that a voltage divider formed by connecting a voltage divider high voltage arm, a signal electrode and a voltage divider low voltage arm in sequence is fixed in an inner cavity of a core insulator and is located above the axle wire of the core insulator; a high voltage wire is connected with a high voltage electrode of the voltage divider high voltage arm through a high voltage wire outlet hole; a signal output wire is connected with the signal electrode through a signal output wire outlet hole; an earth lead is connected with an earth electrode of the voltage divider low voltage arm through an earth lead outlet hole; one end of an earth terminal shielding connecting wire is connected with an earth terminal shielding layer, and the other end of the earth terminal shielding connecting wire is connected with the earth lead; one end of a signal output terminal shielding connecting wire is connected with a signal output shielding layer, and the other end of the signal output terminal shielding connecting wire is connected with the signal output wire; a pouring body with a skirt is poured outside a shielding cavity formed by the core insulator and a seal end cover sealing the mouth of the core insulator; the high voltage wire is led outside the pouring body at the top of the pouring body; and the signal output wire and the earth lead are led outside the pouring body at the bottom of the pouring body.

The invention discloses a 10kV multi-stage series gap lightning stroke flashover protector with an arc striking electrode. The multi-stage series gap lightning stroke flashover protector comprises the arc electrode striking, a zinc oxide lightning arrester, a support cross arm and a support adjusting plate, wherein the arc striking electrode is fixed at the high-voltage end of the zinc oxide lightning arrester; a first-stage discharging gap is formed between a high-voltage conducting wire and the zinc oxide lightning arrester; the high-voltage end of the zinc oxide lightning arrester is connected with the arc striking electrode, and the low-voltage end of the zinc oxide lightning arrester is fixed at one end of the support adjusting plate; the zinc oxide lightning arrester is provided with a second-stage discharging gap; one end of the support cross arm is fixed on an insulator steel leg, and the other end of the support cross arm is connected with one end of the support adjusting plate; and one end of the support adjusting plate is fixed at the low-voltage end of the zinc oxide lightning arrester, and the other end of the support adjusting plate is connected with the support cross arm. The unique multi-stage series pure air gap structure can ensure the effective action of the lightning stroke flashover protector, has high arc extinguishing capability, has the discharging residual voltage far lower than the flashover voltage of the insulator, does not withstand system voltage, and can prolong the service life of the lightning stroke flashover protector.

The invention relates to the technical field of electrostatic spinning, in particular to an air flow assisting handheld portable electrostatic spinning device and application thereof. The electrostatic spinning device comprises an insulating shell, a large-capacity secondary battery, a charging slot, a high-voltage wire, a high-voltage static electricity generating unit, a high-voltage static electricity generating switch, an air flow guide pipe connector, an air flow guide pipe, an injector fixing support, a disposable injector, a needle fixing support, a stainless steel needle and an air flow oriented cover. The large-capacity secondary battery is adopted as the power supply, and high-voltage static electricity is generated through the high-voltage static electricity generating unit; theelectrostatic spinning device is externally connected with an air flow generator through the air flow guide pipe connector, the stainless steel needle and the air flow guide pipe are fixedly locatedon the same axis, and electrostatic spinning is conducted with the aid of air flow. The electrostatic spinning device is high in integration degree, convenient to carry and capable of being held by one hand, and the orientation, uniformity and high-efficiency deposition of electrostatic spinning fibers are realized with the aid of air flow.