31 results about "Vacuum arc" patented technology

The application belongs to the technical field of copper wire preparation, and discloses a preparation process of high-strength and high-toughness copper wire. The preparation process comprises the following steps: mixing Ni, Co and Al element powders according to a molar ratio of 0.95-1.05:0.95-1.05:0.95-1.05, and then high-energy ball milling to obtain Ni-Co-Al middle-entropy alloy micro powder, and then vacuum arc melting or discharge plasma sintering to obtain Ni-Co-Al middle-entropy alloy; mixing the Ni-Co-Al middle-entropy alloy with tungsten copper alloy and copper ingot for melting, cooling the molten copper water through a condensing device, drawing out by a traction mechanism, annealing treatment, winding by a rewinding machine after cooling, and obtaining the copper wire. The application takes the copper ingot as a base material, the tungsten copper alloy as a reinforcing phase, and the Ni-Co-Al middle-entropy alloy as a bonding phase, and the copper wire is prepared by conventional mixed melting, so that the application has the advantages of simple processing method and low production cost.

This invention discloses a rare-earth Ce-purified Ti-Mn-based hydrogen storage alloy and its preparation method. The preparation method includes the following steps: mixing FeV80 with Ce and melting it in a vacuum arc melting furnace under an argon protective atmosphere; polishing the surface of the FeV80-yCe master alloy to remove the surface-enriched impurity phases, obtaining a purified master alloy; mixing the purified master alloy with Ti, Zr, Mn, and Cr raw materials and arc melting it under vacuum conditions; after melting, cooling it to room temperature with the furnace to obtain the rare-earth Ce-purified Ti-Mn-based hydrogen storage alloy. This invention pre-treats FeV80 with Ce, and removes impurities enriched on the surface of the metal ingot through melting and then polishing. The process is simple and cost-controllable, fundamentally solving the problem of impurity deterioration in industrial raw materials, improving the hydrogen storage capacity of the hydrogen storage alloy at 5MPa hydrogen pressure, and meeting the comprehensive performance requirements for industrial applications.

The application discloses a kind of vacuum switch contact ablation intelligent evaluation method based on physical information fusion, belong to vacuum circuit breaker technical field.The method of the present application includes: according to the data set of vacuum switch breaking type obtained from vacuum arc experimental data, construct physical information enhanced support vector machine to predict breaking type of working condition;Vacuum arc simulation model is extracted from each working condition Contact surface energy flow density radial distribution data, and is fitted by Gaussian function;Based on the energy flow density radial distribution curve obtained by fitting, a vacuum arc simulation data set is constructed, and a physical information enhanced Gaussian process regression is constructed to predict the energy flow density of the working condition;Combining the heat transfer model to solve the radial distribution of contact surface temperature, further quantitatively evaluate the ablation degree of contact surface, and output the ablation degree level.The present application embeds the physical law of vacuum arc into machine learning model, realizes the breaking type prediction, energy flow density prediction and contact temperature rise calculation and ablation degree calculation and evaluation.

The application discloses a method for realizing TGV high-conductivity copper-clad by using a magnetic filtering vacuum arc metal film, and specifically comprises the following steps: S1, ultrasonic cleaning is performed on a glass through-hole substrate; S2, sub-etching cleaning treatment and activation of a substrate surface are performed on the glass through-hole substrate under a vacuum environment; S3, a Ti film layer is deposited on the glass through-hole substrate after the treatment in S2 by using a magnetic filtering vacuum cathode arc method; and S4, a Cu film layer is deposited on the Ti film layer under a low vacuum environment. By using the method provided by the application, a Ti undercoat layer is first deposited, the problem of poor adhesion between Cu and a glass substrate is solved, then copper-clad deposition is performed, in addition, the glass substrate can be conductive after Ti plating, so that the bias voltage can be increased, the energy of Cu ions entering the hole is larger, the thickness of the film plated on the hole wall is improved, the adhesion is stronger, and the conductivity is improved.

This application relates to a method for preparing high-purity iron, comprising the following steps: forming an electrode rod from pure iron raw material; subjecting the electrode rod to vacuum arc melting; the vacuum arc melting includes an arc initiation stage, a melting stage, and a feeding stage; the melting current in the arc initiation stage is 1.5 kA~3.0 kA, and the arc stabilization current is 4 A~10 A; the melting current in the melting stage is 2.5 kA~3.5 kA, the melting rate is 2.5 cm / min~5.5 cm / min, and the arc stabilization current is 8 A~20 A; the melting current in the feeding stage is 1.2 kA~3.3 kA, the melting rate is 1 cm / min~4.5 cm / min, and the arc stabilization current is 4 A~11 A. This method can effectively reduce the density and refine the size of inclusions in pure iron, while also making the inclusions dispersed in the material. The high-purity iron prepared by this method has a significantly reduced inclusion density, small inclusion size, and is in a dispersed state, which meets the manufacturing requirements of iron-based supports.

The utility model discloses a kind of equalization electric field fixed sealing pole, comprising: pole body, moving contact, vacuum arc-extinguishing chamber, static contact seat and external component;Along the axial direction of pole body, the middle part is provided with the installation cavity through both ends;Moving contact is arranged in one end of installation cavity;Vacuum arc-extinguishing chamber is arranged in installation cavity;Static contact seat is arranged in installation cavity, and its one end is connected with moving contact, and the other end is connected with the one end of vacuum arc-extinguishing chamber close to moving contact;External component one end is connected in the one end of vacuum arc-extinguishing chamber away from static contact seat, and the other end is arranged in the one end of installation cavity away from moving contact. To solve the discharge problem caused by uneven electric field.

The present application relates to a kind of medium voltage DC hybrid circuit breaker in vacuum mechanical switch high arc voltage implementation method, based on the basic principle of natural commutation of DC breaking, form arc voltage promotion method, propose the overall technical scheme based on high arc voltage vacuum fast mechanical switch, provide theory and technical basis for the research and development of natural commutation type medium voltage DC circuit breaker, engineering application.Through external transverse magnetic field (external transverse magnetic field, ETMF) to make up for the shortage of its own magnetic field.When vacuum switch is directly used for low voltage DC breaking, external transverse magnetic field control plays a crucial role.The effect of transverse magnetic field on vacuum arc is to improve the voltage of vacuum arc, force the current of DC loop to zero, thereby realizing the DC breaking of vacuum switch.Improve the rapidity and reliability of current transfer, expand the application scenario of natural commutation mode, improve the arc voltage of fast mechanical switch, improve commutation and breaking performance.

The application relates to a detachable arc-extinguishing chamber with anti-conducting rod torsion devices, which comprises an arc-extinguishing chamber body and two anti-torsion mechanisms, the two anti-torsion mechanisms being fixedly connected with two ends of the arc-extinguishing chamber body respectively; the anti-torsion mechanism comprises a movable clamp, a fixed clamp and a fixed plate, the fixed plate and the fixed clamp being welded and fixed, a supporting rod of the arc-extinguishing chamber body being provided with a thread, the fixed plate and the supporting rod of the arc-extinguishing chamber body being fixedly connected through a nut, the movable clamp and the fixed clamp being fixedly connected through a bolt and a nut, and the movable clamp and the fixed clamp being sleeved outside a conducting rod of the arc-extinguishing chamber body. The application improves the safety of a bellows of the detachable arc-extinguishing chamber when a torque is exerted on the conducting rod, and belongs to the technical field of vacuum arc-extinguishing chambers.

The present application belongs to the technical field of multi-arc power supply control in vacuum arc coating system, and particularly relates to a kind of multi-arc power supply control device and control method in vacuum arc coating system, comprising: host computer, intermediate conversion box, driving power supply, a plurality of arc power supplies, optical fiber A and a plurality of optical fiber B, monitor and cable; one end of the intermediate conversion box is connected with the host computer through optical fiber, the other end of the intermediate conversion box is connected with the plurality of arc power supplies through the plurality of optical fiber B respectively, the intermediate conversion box is also provided with a spare port, the spare port of the intermediate conversion box is connected with the monitor through the cable, and the intermediate conversion box is also connected with the driving power supply. The host computer control mode of the present application is parallel control, which improves the control speed, and the single instruction of the host computer is analyzed and decomposed into multiple instructions by the intermediate conversion box and sent to multiple arc power supplies, which meets the high real-time process requirements of coating.

The present invention relates to remelting plants for metals, such as vacuum arc furnaces (vacuum arc remelting, VAR) and electro slag remelting plants (electro slag remelting, ESR), which have one or more melting locations. The plants have a uniformly low overall height and allow weighing with the highest precision. For this purpose, they are provided with a non-coaxially driven electrode rod (140) and a weighing device (230, 240) arranged laterally. The electrode is centered without generating transverse forces which have a negative influence on the plant structure and the weighing result.

The utility model relates to a kind of integrated vacuum arc-extinguishing chamber installation support module, including integrally-formed mounting bracket and insulating cylinder, vacuum arc-extinguishing chamber is installed in insulating cylinder;Insulating cylinder has three in total, it is in the form of a word distribution on mounting bracket, the bottom end of insulating cylinder is also provided with center conductor, and center conductor and insulating cylinder integrally cast molding;The mounting bracket includes a mouth word outer frame, several transverse and longitudinal staggered distribution inner ribs are distributed in outer frame, three through holes for insulating cylinder plug-in installation are provided on mounting bracket, the two sides of the long axis direction of outer frame are also provided with brass inserts and isolation plate, four insulating support plates distributed along the long axis direction are also provided on outer frame.The support module in the utility model, three-phase vacuum arc-extinguishing chamber is assembled in insulating cylinder and fixed, live conductor can be isolated in insulating cylinder, improve insulation performance, also can realize the compact design of product, and the pouring strength of overall integrated structure design is good, assembly is simple.

The utility model relates to a kind of lower isolation circuit breaker switches, by connecting three groups of vacuum arc-extinguishing chamber jointly on main shaft, cooperate with corresponding cam transmission assembly, moving contact component and grounding assembly, so that the whole switch structure is compact, layout is reasonable, effectively reduce the space occupation, main shaft rotation is installed on mechanism frame, cam transmission assembly and main shaft linkage cooperation drive vacuum arc-extinguishing chamber, so that the operation of switch is more simple and reliable, the structure design of backing plate provides stable support and installation foundation for moving contact component, and can effectively limit contact overshoot, play the protection effect to contact end, the design of grounding assembly, when switch malfunction or misoperation occurs, current can be quickly guided into earth, effectively prevent operator electric shock, guarantee personal safety and equipment safety.

The utility model relates to electrical technical field, concretely relates to a vacuum arc-extinguishing chamber frame and vacuum circuit breaker with it. Including the support for installing vacuum arc-extinguishing chamber, wherein the support is designed to have multiple and multiple support is along the lateral interval arrangement, crossbeam, it extends along the lateral direction, wherein two groups crossbeam is connected to the outside of support in longitudinal symmetry, and crossbeam is designed to be at least partial structure is symmetrical in vertical direction, connecting structure is located between two adjacent support and is connected to two groups crossbeam, wherein the connecting structure is designed to be at least partial structure is symmetrical in vertical direction, and wherein multiple support, crossbeam and connecting structure are designed to be integral. According to the vacuum arc-extinguishing chamber frame of the utility model has better product overall mechanical property stability, reliability and injection moulding process stability compared with prior art.

This invention discloses an intelligent isolation fast circuit breaker, belonging to the technical field of high-voltage switchgear. The circuit breaker includes a horizontal sealed gas chamber, a drive coil module, and a pluggable integrated control power supply compartment. The gas chamber is divided into an arc-extinguishing chamber, a permanent magnet mechanism chamber, and a sensor chamber. The moving contact shaft of the vacuum arc-extinguishing chamber is rigidly connected to the output shaft of the permanent magnet mechanism via an insulated coupling. The drive coil module is sleeved outside the gas chamber and drives the internal permanent magnet rotor to rotate through magnetic coupling in a non-contact manner, thereby causing the contacts to open and close. This completely eliminates the dynamic sealing points penetrating the gas chamber, greatly improving the long-term reliability of gas insulation. The integrated control power supply compartment adopts a modular pluggable design, integrating protection, communication, hybrid energy harvesting, and drive circuits. It can be quickly replaced in case of failure, greatly shortening maintenance time. This invention combines the advantages of high reliability, fast action, low maintenance cost, and intelligent monitoring, and is suitable for the protection and control of overhead lines in power distribution networks.

The application provides a fine particle high-purity preparation method of a multi-element pre-alloy powder for a diamond tool, the pre-alloy powder takes iron, copper, tin, nickel and cobalt as main raw materials, and the preparation method comprises the following steps in sequence: raw material pretreatment, double-field coupling smelting, atomization-gas quenching, multi-stage grading, reduction annealing, composite purification and passivation post-processing steps; raw material deep purification is realized through vacuum degassing and plasma cleaning, composition uniformity is ensured by adopting electromagnetic induction and vacuum arc field collaborative smelting, powder particle size and morphology are controlled by combining ultrasonic atomization and low-temperature gas quenching, and finally, deep deoxidization and impurity removal are realized through vacuum distillation and plasma purification, the pre-alloy powder prepared by the application has low oxygen content, concentrated and uniform particle size distribution, the final sintered body has a bending strength of 820 MPa and a diamond shear strength of 90 MPa, and is significantly better than traditional products.

The application relates to a small full-sealed solid insulation switch, which comprises a mechanism box and an insulation cylinder, the mechanism box comprises a box body and a box cover, the insulation cylinder comprises a cylinder body made of epoxy resin and a circuit breaker assembly, an isolating switch assembly and a grounding assembly in the cylinder body, the outer surface of the cylinder body is provided with a metal layer made by a thermal zinc spraying process, the cylinder body is sealingly fixed on the box body, the circuit breaker assembly comprises an incoming line conductor and a vacuum arc-extinguishing chamber, the vacuum arc-extinguishing chamber dynamic contact is connected with a circuit breaker mechanism in the mechanism box through an insulation pull rod, the isolating switch assembly comprises an outgoing line conductor, an isolating support seat and an isolating dynamic knife, the isolating dynamic knife is connected with an isolating grounding mechanism in the mechanism box through an isolating pull rod, the grounding assembly comprises a grounding static contact fixed in the inner cavity of the cylinder body and electrically connected with the vacuum arc-extinguishing chamber dynamic contact and the isolating support seat, and the isolating grounding mechanism is provided with a grounding dynamic contact matched with the grounding static contact. The switch has the advantages of compact structure, good safety, high reliability and strong practicability.

The application relates to the technical field of aerospace propulsion, and particularly discloses a vacuum arc pulse plasma thruster. The vacuum arc pulse plasma thruster comprises a vacuum arc ignition system and a pulse plasma acceleration system. The vacuum arc ignition system forms an arc to generate plasma based on high-voltage pulse discharge ablation of metal, and injects the plasma into the pulse plasma acceleration system; the pulse plasma acceleration system axially accelerates the plasma based on the Lorentz force generated by the internal formed orthogonal electromagnetic field, and the high-speed ejection of the plasma from the discharge channel forms a recoil force. The introduction of the pulse plasma propulsion acceleration mechanism promotes the efficient conversion of the capacitor energy storage into axial directional kinetic energy, and improves the thrust, specific impulse and energy conversion efficiency of the thruster.

The application discloses a supporting and protecting device, in particular to a supporting and protecting device for vacuum arc ion plating of an aero-engine blade, and belongs to the technical field of aero-engine maintenance process equipment design and manufacturing. The supporting and protecting device is convenient to load and can effectively avoid pollution of a deposited surface after cleaning during loading.

The utility model belongs to electrical equipment - low voltage switch technical field discloses a kind of circuit breaker vacuum arc-extinguishing chamber assembly tool, including bottom plate, positioning support, soft connection clamping component and arc-extinguishing chamber clamping component;Positioning support is fixed on bottom plate, soft connection clamping component is set in the top of positioning support liftablely, including the positioning plate for fixed soft connection and the positioning rod of supporting positioning plate lifting, arc-extinguishing chamber clamping component is set in the middle part of positioning support, including the clamping rod for clamping arc-extinguishing chamber with open adjustable and the tension spring for providing the clamping force of clamping rod.The tool adopts simple structure, and the material of reliable strength is positioned to vacuum arc-extinguishing chamber and soft connection, and optimization assembly process improves assembly speed, precision and guarantees the assembly height requirement of arc-extinguishing chamber, guarantees the conductivity of vacuum arc-extinguishing chamber, solves the problem of complicated step, inconvenient positioning in the installation process of vacuum circuit breaker arc-extinguishing chamber in current technology, greatly improves assembly efficiency.

This invention discloses a sensor, an anti-icing and de-icing coating, and a method for preparing the anti-icing and de-icing coating. The method for preparing the anti-icing and de-icing coating includes the following steps: S100, using ion implantation technology, metal ions are implanted onto the surface of the component to form a first ion implantation layer; S200, using magnetically filtered cathode vacuum arc discharge technology, an oxide ceramic insulating layer is deposited on the surface of the first ion implantation layer; S300, using ion implantation technology, metal ions are implanted onto the surface of the oxide ceramic insulating layer to form a second ion implantation layer; S400, using magnetically filtered cathode vacuum arc discharge technology, a metal conductive heating layer is deposited on the second ion implantation layer; S500, using magnetically filtered cathode vacuum arc discharge technology, metal layers and metal nitride layers are alternately deposited multiple times on the surface of the metal conductive heating layer to form a functional protective layer. The coating of this invention has strong adhesion to the component and excellent anti-icing and de-icing performance.

The application discloses a method for preparing homogeneous titanium-tantalum alloy ingot based on a titanium-tantalum composite precursor, and the method comprises the following steps: firstly, placing sponge titanium in a slot of a magnetron sputtering device and taking the sponge titanium as an anode, and taking a metal tantalum target as a cathode to perform magnetron sputtering to obtain a titanium-tantalum composite precursor; and secondly, mixing the sponge titanium and the titanium-tantalum composite precursor, pressing the mixture into a billet, welding the billet into a consumable electrode, and performing vacuum arc melting to obtain a homogeneous titanium-tantalum alloy ingot. The method adopts the magnetron sputtering method, so that tantalum atoms are uniformly and firmly attached to the sponge titanium to prepare the titanium-tantalum composite precursor, the distribution uniformity of the tantalum element is improved, the high-melting-point tantalum element inclusions are effectively avoided, the preparation of the high-homogeneous titanium-tantalum alloy ingot is realized, the titanium-tantalum alloy ingot production process is effectively simplified, the ingot melting frequency is reduced, and the production efficiency and the yield of the homogeneous titanium-tantalum alloy ingot are improved, and the production cost is reduced.

The application provides a method for preparing high-purity niobium ingot by using multi-stage refining and high-purity niobium ingot, and the method comprises the following steps: (1) taking aluminum particles, niobium pentoxide, a heating agent and a slagging agent as raw materials, preparing aluminum-niobium alloy ingot by using an off-furnace aluminothermic method, then performing surface treatment and crushing treatment to obtain aluminum-niobium alloy particles; (2) performing horizontal electron beam melting on the aluminum-niobium alloy particles to obtain molten niobium plates; (3) stacking a plurality of molten niobium plates, then sequentially performing vacuum diffusion welding and vacuum arc melting to obtain a primary niobium ingot; and (4) placing the primary niobium ingot in a double-gun electron beam melting furnace for melting treatment to obtain the high-purity niobium ingot. The multi-stage refining process coupling system of "aluminothermic method→horizontal electron beam melting→diffusion welding→arc melting→double-gun electron beam melting" is adopted to realize the stable production of high-purity niobium with high RRR value, and effectively solves the technical problems of high energy consumption, high cost and low production efficiency existing in the traditional process.

A V-Al-Ni ternary alloy material for hydrogen permeation and its preparation method are disclosed, relating to the field of hydrogen separation and purification membrane technology. The chemical composition of the alloy is V... 75 Al 10 Ni 15 The preparation method includes: cleaning, drying, and precisely batching high-purity metal raw materials; melting the batched raw materials under vacuum arc to obtain a uniform alloy ingot; wire-cutting the ingot into samples and then grinding and polishing the surface; finally, depositing a Pd catalyst layer onto the polished alloy surface. The alloy prepared by this method has a body-centered cubic structure, exhibiting both excellent resistance to hydrogen embrittlement and a high hydrogen permeability coefficient. Its hydrogen permeability at 673 K is comparable to that of a pure Pd membrane, showing broad application prospects in the field of hydrogen separation and purification.

The application discloses a novel CoNi-based high-temperature alloy with stable gamma-prime strengthening phase and a preparation method thereof. The alloy has the following chemical components in percentage by mass: Co 49-56%, Ni 30-33%, Al 4-5%, W 3-7%, Ti 1-5%, and Nb 1-5%. The alloy takes Co and Ni as matrix elements, and adds strengthening elements such as Al, W, Ti and Nb, and obtains stable gamma / gamma-prime two-phase structure through component synergistic design. The alloy is prepared by vacuum arc melting, and is subjected to long-time aging treatment after solid solution treatment. The research results show that after long-time aging treatment, the gamma-prime phase of the alloy still remains stable, does not obviously coarsen and decompose, and no obvious TCP harmful phase is observed, and the alloy exhibits excellent microstructure stability. The novel CoNi-based high-temperature alloy with stable gamma-prime strengthening phase has excellent high-temperature microstructure stability and long-time aging stability, and can be applied to key load-bearing components in long-term high-temperature environment, and is also suitable for fields with high requirements on high-temperature stability and microstructure reliability.

The utility model relates to vacuum arc discharge device technical field especially relates to a kind of vacuum arc discharge device, including device ontology, its characterized in that: the device ontology is provided with connecting mechanism, the connecting mechanism includes the connecting component being arranged in the device ontology outer wall, the device ontology rear section is provided with mounting assembly, and the mounting assembly is connected with heat dissipation component. Stable and convenient connection and installation are realized by connecting mechanism. The supporting leg in connecting component provides firm support for device, and display panel is convenient for real-time monitoring operating state;Mounting assembly utilizes the cooperation of fixed block, connecting rod, connecting spring and other components, and only needs to rotate rotating block simply to quickly complete the installation and disassembly of backboard, without complex tools and tedious operation, and the firmness of connection is ensured by resisting block and limiting block, avoids loosening, greatly improves the efficiency and stability of device installation and maintenance.

The application belongs to the technical field of vacuum arc-extinguishing chambers, and particularly relates to a large-capacity vacuum arc-extinguishing chamber and a working method. The large-capacity vacuum arc-extinguishing chamber comprises a vacuum insulation shell, a contact system arranged in the vacuum insulation shell, a rated current through-flow branch and an arc current through-flow branch arranged in parallel, a dynamic main contact and a static main contact matched with each other, a part of the static main contact penetrating through the vacuum insulation shell and exposed to an external environment to form a heat dissipation structure, an arc current through-flow branch comprising an inner arc contact, an outer arc contact and a magnetic field assembly electrically connected with the inner arc contact and the outer arc contact and used for generating a magnetic field for controlling an arc during opening and closing, and a conductive rod arranged at the upper and lower ends of the vacuum insulation shell and electrically connected with the contact system. The large-capacity vacuum arc-extinguishing chamber can meet the requirements of high rated current, large breaking current, high efficient heat dissipation and high voltage insulation, and overcomes the defects of mutual restriction of multiple performances in the prior art.

The application discloses a large-size GH2070P alloy ingot and a preparation method thereof, and belongs to the field of high-temperature alloy preparation for ultra-supercritical power stations. The method is characterized in that the tail end face of a GH2070P electrode is baked in the arcing stage of vacuum arc consumable remelting, then the current value is increased to 13.0-15.0 kA at a rate of 0.4-0.6 kA / min, the cooling water flow is 1120-1300 L / min, the current value is reduced again to make the electrode continue to melt, the current value is increased to greater than or equal to 8.5 kA under 23.5-24.5 V, the melting is carried out at a constant melting rate in the stable melting stage, then the feeding is carried out, finally the power is turned off to cool, and the large-size GH2070P alloy ingot is obtained. The method solves the metallurgical risks of traditional sawing of the electrode head, and the problems of reduced production efficiency and material waste caused by the flat head, and the large-size and large-weight GH2070P alloy ingot is obtained, thereby meeting the demand of the large pipe of the ultra-supercritical power station.

This invention relates to the field of voltage regulation technology for distribution transformers, and provides a method, device, and system for phase-by-phase on-load voltage regulation of distribution transformers. The method includes: acquiring three-phase voltage signals on the low-voltage side of the distribution transformer; calculating the voltage deviation of each phase; determining that voltage regulation is required when the voltage deviation of each phase exceeds the dead zone threshold and the duration exceeds the anti-jitter delay time; otherwise, no voltage regulation is required; calculating the first target voltage level for each phase and adjusting the voltage level to achieve the qualified voltage for each phase; calculating the voltage imbalance of the three-phase voltage; if the voltage imbalance meets the national standard limit, the voltage regulation ends; otherwise, PID control algorithms are executed on each of the three phases and voltage levels are adjusted. Through the above steps, combined with the miniaturized phase-by-phase independent voltage regulation structure applicable to distribution transformers and the intelligent switching of dual vacuum arc-extinguishing chambers, rapid and arc-free automatic voltage regulation is achieved; at the same time, a dual protection circuit is introduced to ensure high system reliability and achieve precise regulation of the low-voltage side output voltage.

This invention discloses a method for assessing the radiation hazard of a vacuum interrupter based on spectral distortion correction, belonging to the field of high-voltage testing and radiation detection protection technology. It includes the following steps: Step S1, obtaining the geometric parameters of the vacuum interrupter and calculating the spatial reference measured energy spectrum; Step S2, calculating the equivalent penetration thickness factor of X-rays within the main shield of the vacuum interrupter based on the spatial observation angle, and constructing a spatially related shield self-absorption attenuation matrix based on the equivalent penetration thickness factor of X-rays within the main shield of the vacuum interrupter. This invention provides a method for assessing the radiation hazard of a vacuum interrupter based on spectral distortion correction. Through external energy spectrum measurement and spectral reconstruction, and direct table lookup calculation of human tissue doses based on international standard conversion coefficients, it achieves a three-dimensional, accurate, and rapid quantitative assessment of the actual radiation hazard to the human body under specific high-voltage operating conditions.

The application relates to the technical field of vacuum arc-extinguishing chamber insulation structure, and discloses a vacuum arc-extinguishing chamber insulation structure optimization method, which comprises the following steps: a two-dimensional axisymmetric electrostatic field parameterized geometric model is established in finite element simulation software, and design variables are defined; optimization is set, and constraint conditions of the design variables are preset; a whale optimization algorithm is adopted, the number of whales is set according to the dimension of the design variables, and the position vector of each whale represents the value of a group of design variables; for each whale individual, the position vector is automatically assigned to the parameterized geometric model, finite element electrostatic field simulation is triggered once, the global maximum electric field strength is extracted as the fitness value of the individual, the position vector with the minimum fitness value is taken as the optimal position vector, the position vectors of all whale individuals are updated, the parameter combination of the design variables corresponding to the global optimal position vector is obtained, and the optimization design scheme is taken as the parameter combination, so that the blank in the aspects of systematicness, automation and global optimization capability is filled up.