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38results about How to "Prevent creepage" patented technology
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Electrostatic dust removing device for high-temperature coal gas
PendingCN108435424APrevent creepageReduce adhesionExternal electric electrostatic seperatorElectric supply techniquesTarEngineering
The invention relates to an electrostatic dust removing device for high-temperature coal gas. The electrostatic dust removing device comprises a shell, dust hoppers, electrode wires, dust collecting electrode plates, insulators, a hot gas purging mechanism and a high-pressure power supply, wherein the shell is provided with a gas inlet and a gas outlet, the dust hoppers are arranged under the shell, the electrode wires and the dust collecting electrode plates are arranged in the shell, the insulators are used for insulating the electrode wires and the shell, the hot gas purging mechanism is used for purging the insulators, and the high-pressure power supply is connected with the electrode wires; and each insulator is shaped like a hollow cylinder, the hollow structure of each insulator faces the interior of the shell, a column used for penetrating through the corresponding electrode wire is arranged on the inner side of the bottom of each insulator, and a ventilation structure is arranged on the side wall of each insulator. According to the electrostatic dust removing device for the high-temperature coal gas, tar oil and dust particles which are adhered to the insulators can be effectively reduced, and insulator creepage can be avoided.
Owner:ZHEJIANG UNIV
Electric control cabinet for three box type smart-cooling oil field
InactiveCN104779541ACompact structureSimple structureSubstation/switching arrangement cooling/ventilationSubstation/switching arrangement casingsTemperature controlAir volume
The invention relates to an electric control cabinet for a three box type smart-cooling oil field. The bottom of an inner cabinet and the bottom of an outer cabinet are fixedly installed on a lower cabinet. A heat dissipation opening is formed in the outer cabinet, and a heat dissipation hole is formed in the inner cabinet. Ventilation openings are formed in the four side walls of the lower cabinet, and the ventilation openings are provided with sliding cover plates capable of covering the ventilation openings. Through holes communicating the inner cabinet and the gap between the inner cabinet and the outer cabinet are formed in a top plate of the lower cabinet. A draught fan is arranged in the lower cabinet, and an outlet of the draught fan is connected with a horn opening with an upward opening and is connected with the top plate below the inner cabinet. A temperature control probe is arranged in the heat dissipation hole in the inner cabinet and is connected with an intelligent controller of the draught fan, and the draught fan supplies air to a cabinet body with a small air volume and a low speed. According to the electric control cabinet for the three box type smart-cooling oil field, a field working environment is adopted better, the influence caused by the climate on electric components and parts in the inner cabinet is reduced, at the same time, the air is supplied to the inner cabinet with the low speed and small air volume, the heat dissipation efficiency and the dustproof effect are improved, stable working environment is provided for the electric components and parts in the inner cabinet, and the rate of breakdown is lowered.
Owner:无锡阿比利德电力科技有限公司
Cable outer sheath thermal shrinkage patching method
ActiveCN103986100AIncreased operating lifeIntegrity guaranteedApparatus for repairing insulation/armouring cablesGlass sheetOperation safety
The invention provides a cable outer sheath thermal shrinkage patching method. Specifically, a graphitic layer on the damaged part of a cable outer sheath is scraped off and smoothened through a glass sheet, the section with the damaged part of a cable is wound and sealed through an insulating belt, the insulating belt is wrapped by a protection cover, and thermal shrinkage processing is carried out on the protection cover. According to the technical scheme, damage and water and humidity entering of the cable thermal protection cover can be effectively prevented, and the operation safety of the cable is improved.
Owner:STATE GRID CORP OF CHINA +1
Novel environmental-protection-gas insulated totally-enclosed all-insulation ring network switch equipment
PendingCN109830911AImprove heat capacityReduce oxygen corrosionSwitchgear arrangementsCorrosionMaterials science
The invention relates to novel environmental-protection-gas insulated totally-enclosed all-insulation ring network switch equipment. The equipment comprises a stainless steel welded sealed box body and an isolation switch component installed in the stainless steel welded sealed box body. A cavity in the stainless steel welded sealed box body forms a gas box filled with an insulated gas. The upperportion of the stainless steel welded sealed box body accesses an insulation bus and a lower portion accesses a cable wiring plug. The isolation switch component is installed in the stainless steel welded sealed box body through a grounding framework, and a closing button and an opening button for controlling the isolation switch component are installed on the external portion of the stainless steel welded sealed box body. The equipment has advantages that (1) insulation performance satisfies the requirements of a power frequency withstand voltage and an impulse withstand voltage; and (2) compared with dried and purified air, the insulated gas reduces an oxygen content by half, which can improve the heat capacity of a mixed gas, and reduce the oxygen corrosion of equipment parts.
Owner:GUANGDONG AERPAL ELECTRIC POWER TECH CO LTD
Device and method for measuring thermosetting resin breakdown field strength
ActiveCN104793115AHigh precisionPrevent creepageTesting dielectric strengthObservational errorEngineering
The invention provides a device and method for measuring thermosetting resin breakdown field strength. The device comprises a supporting frame, an upper electrode, a lower electrode, a thermosetting resin groove and a distance fixing rod, the supporting frame is formed by the upper plate and the lower plate which are arranged horizontally and supporting rods which are vertically arranged on two sides of the upper plate and the lower plate, the thermosetting resin groove is positioned in the lower plate, and the distance fixing rod is positioned at one end of the upper electrode and vertically penetrates the upper plate. The device can effectively prevent creepage and is simple to operate and easy in realization, accuracy of thermosetting resin sample thickness is improved, and measuring errors are reduced.
Owner:CHINA ELECTRIC POWER RES INST +3
A barrel type composite insulating material insulation performance testing device
InactiveCN110780167BFit tightlyPrevent air gap dischargeTesting vessel constructionMeasuring instrumentCopper electrode
The invention discloses a barrel-type composite insulating material insulation performance testing device, which includes a constant temperature box and an electrode system. The constant temperature box is provided with a heating tube and a temperature sensor. The electrode system includes a high-voltage copper rod electrode and a ground electrode; the high-voltage copper rod electrode is a cylinder. The body copper electrode is located inside the barrel-type composite insulating material. The cylindrical copper electrode is two semi-cylindrical copper electrodes cut along the diameter; the upper surface of the cylindrical copper electrode is tapped into the upper copper rod, and the lower surface is tapped Screw in the lower copper rod; the ground electrode is close to the outer wall of the barrel-type composite insulation material; the upper copper rod is connected to the high-voltage terminal to the partial discharge detector or voltage measuring instrument, and the ground electrode is connected to the low-voltage terminal; the partial discharge detector or voltage measuring instrument will collect The received voltage data is sent to the computer. The invention can ensure that the electrode and the insulating material are tightly bonded, and prevent air gap discharge caused by gaps between the electrode and the insulating material and creepage of the insulating material along the radial direction.
Owner:SOUTHWEST JIAOTONG UNIV +3
Composite insulator by injection molding once
InactiveCN101635194AImprove connection strengthImprove the sealing effectSuspension/strain insulatorsPower transmissionMechanical engineering
The invention discloses a composite insulator by injection molding once, and relates to an insulator for power transmission lines. The composite insulator comprises a mandrel bar, a hardware fitting with tubular joints, an umbrella-shaped insulator, and sheaths arranged at the two ends of the umbrella-shaped insulator, wherein the sheaths are positioned on the surface of the mandrel bar and connected with the mandrel bar fixedly, and the two ends of each of the sheaths are respectively fixedly connected with pipe orifices of the hardware fitting of which the two ends are provided with the tubular joints; the pipe orifices of the tubular joints of the hardware fitting towards the umbrella-shaped insulator are provided with stepped circles; and the sheaths at the two ends of the umbrella-shaped insulator at least coat the stepped circles at the pipe orifices of the hardware fitting and are fixedly connected with the stepped circles in a water sealing manner. The insulator not only improves the connection strength of the sheaths, the mandrel bar and the hardware fitting, but also greatly improves the water sealing effect due to the addition of a plurality of junction surfaces. In order to further improve the water sealing effect, at least one circle of groove is arranged on the outer revolution surfaces of the stepped circles, and the number of the junction surfaces is increased, so the sealing effect is further improved. Finally, the umbrella-shaped insulator is combined according to the size of the umbrella shape so as to effectively overcome creepage.
Owner:高荣庆
High power and high capacity pulse dummy lamp
InactiveCN1671015AGuaranteed uptimeAvoid Vertical ShakeLaser detailsGas discharge lampsEngineeringCopper
A high power high load pulse imitation lamp, which contains lamp tube and two symmetrically set same lamp adapters, wherein a hollow ring set in center of lamp tube penetrated with solid copper bar, two same quartz tubes set between solid copper bar and lamp tube, the outer layer of lamp adapter is metal sleeve, electrode lead wire with copper connector set in lamp adapter center position, they are all adopted the multi-layer structure. Said invention has advantages of simple structure, low cost, easy installation, safety and long service life.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Barrel type composite insulating material insulating property detection device
ActiveCN110780167AFit tightlyPrevent air gap dischargeTesting vessel constructionMeasuring instrumentCopper electrode
The invention discloses a barrel type composite insulating material insulating property detection device which comprises a constant temperature box and an electrode system. A heating pipe and a temperature sensor are arranged in the constant temperature box. The electrode system includes high-voltage copper bar electrodes and a ground electrode; the high-voltage copper bar electrodes are cylindrical copper electrodes and are arranged inside a barrel type composite insulating material; the cylindrical copper electrodes are two semi-cylindrical copper electrodes formed by cutting along the diameter; upper cooper bars are screwed into the circle centers of the upper surfaces of the cylindrical copper electrodes through tapping; and lower copper bars are screwed into the circle centers of thelower surfaces through tapping. The ground electrode is in close contact with the outer wall of the barrel type composite insulating material. The upper cooper bars are connected with a high-voltage terminal and connected with a partial discharge detector or a voltage measuring instrument; and the ground electrode is connected with a low-voltage terminal. The partial discharge detector or the voltage measuring instrument sends the acquired voltage data to a computer. Therefore, the tight fitting of the electrode and the insulating material can be ensured; and the air gap discharge caused by agap between the electrode and the insulating material and creepage of the insulating material in the radial direction are prevented.
Owner:SOUTHWEST JIAOTONG UNIV +3
Compact high-voltage wiring terminal and high-frequency transformer
InactiveCN111564300AMeet creepage distanceReduce in quantityTransformers/inductances coils/windings/connectionsMiniaturizationMechanical engineering
The invention discloses a compact high-voltage wiring terminal and a high-frequency transformer. The wiring terminal comprises an insulator satisfying a preset creepage distance. A first high-voltageconducting rod and a second high-voltage conducting rod are arranged in the insulator in parallel; the top ends of the first high-voltage conducting rod and the second high-voltage conducting rod extend out of the top surface of the insulator; the bottom ends of the conducting rods extend out of the bottom surface of the insulator; an upper insulating baffle plate is arranged between the top endsof the first high-voltage conducting rod and the second high-voltage conducting rod in the top surface of the insulator; a lower insulating baffle is arranged between the bottom ends of the first high-voltage conducting rod and the second high-voltage conducting rod on the bottom surface of the insulator; and the sizes of the upper insulating baffle and the lower insulating baffle both meet the creepage distance between the first high-voltage conducting rod and the second high-voltage conducting rod. According to the compact high-voltage wiring terminal, connection and safety protection of double paths of high-voltage incoming and outgoing lines in one terminal can be realized, and miniaturization and light weight of products with high-voltage interconnection requirements of cascaded high-capacity high-frequency high-voltage transformers are facilitated.
Owner:CSR ZHUZHOU ELECTRIC CO LTD
Reactor for preparing synthesis gas by reforming liquid fuel through plasma and application
ActiveCN112960646AInhibit carbon depositionPrevent burstHydrogenHydrogen/synthetic gas productionSyngasThermodynamics
The invention discloses a reactor for preparing synthesis gas by reforming liquid fuel through plasma and application. A fuel and air mixture inlet communicated with the interior of a barrel is formed in the side wall surface of the barrel where a gap is formed between a high-voltage electrode and a lower sealing cover, and the axis of the fuel and air mixture inlet is tangent to the inner wall surface of the barrel. A first air inlet communicated with the interior of the barrel is formed in the side wall surface, close to an upper sealing cover, of the barrel between the high-voltage electrode and the upper sealing cover, and the axis of the first air inlet is tangent to the inner wall surface of the barrel. A second air inlet communicated with the interior of the barrel is formed in the upper middle part of the upper sealing cover. The reactor is additionally provided with a wall air inlet pipeline and a top air inlet pipeline, so that a three-way feeding mode of wall air, top air and air and fuel is realized, and the phenomenon of carbon deposition caused by the fact that the fuel is attached to the wall of the reactor is prevented. A high-voltage electrode expansion space is reserved by considering different thermal expansion coefficients of the high-voltage electrode and the insulating ceramic. A fixed screw rod is sleeved with a ceramic tube.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
External pulse generator of neural regulation and control body
InactiveCN107952171AImprove interchangeabilityNot easy to strain and agingImplantable neurostimulatorsArtificial respirationNeural regulationBoard-to-board connector
The invention belongs to the technical field of medical instruments, and particularly relates to an external pulse generator of a neural regulation and control body. The external pulse generator comprises a front shell, a rear shell, an end cover, a battery cover, a wire interface end plug and a PCB. The front shell, the rear shell and the end cover are used for supporting the PCB in the shell. The PCB comprises a first PCB and a second PCB. The first PCB and the second PCB are connected through a board-to-board connector. The first PCB is fixed in the front shell, and the second PCB is fixedin the rear shell. The first PCB and the second PCB are connected with the board-to-board connector through an FPC. The wire interface end plug is installed on the second PCB. According to the invention, a display port interface can be used at the connecting end of a wire based on an optimized installation structure, so that the advantages of high interchangeability and low cost are realized. A metal frame is not prone to strain and aging. In addition, the bandwidth provided by the display port can be up to 10. 8Gb / s. The upgrading of future products is facilitated.
Owner:BEIJING PINS MEDICAL
A vacuum circuit breaker for high-cold area based on boosting reaction
ActiveCN109166758AExtended service lifeSave energyHigh-tension/heavy-dress switchesAir-break switchesEngineeringCold area
The invention discloses a vacuum circuit breaker for high-cold area based on boosting reaction, its structure includes circuit breaker main body, Circuit break mounting bracket, Insulator, open / closedrive lever, knife separator, isolation knife, As that vacuum circuit break is provided with a knife separate device, When the worker needs to overhaul the circuit breaker and switch it on or off, Asthat heat generate by the compressed air of the thermally pressurize structure causes the frozen water vapor to undergo liquefaction reaction, At this time, that work personnel can easily separate theknife of the circuit breaker from the contact part at the top of the insulator, the force of the switch is not pry open by other tools, the working efficiency is improved, the wear of the knife jointcaused by the pry tool is avoided, and the service life of the circuit breaker is prolonged, so that the contact part of the circuit breaker and the contact part at the top of the insulator are separated.
Owner:江苏金十字新材料有限公司
Anti-creepage cake-type coil insulation support frame
InactiveCN111243823ASmall bending radiusIncrease contact areaSuperconducting magnets/coilsEmergency protective arrangements for limiting excess voltage/currentPhysicsEngineering
The invention relates to an anti-creepage cake-type coil insulation support frame which comprises a base made of an insulating material. A plurality of bosses are arranged on the two sides of the baseat intervals in the length direction of the base; the bosses on the two sides are equal in number and are in one-to-one correspondence in the transverse direction of the base; a platform for supporting a superconducting tape is formed between the two bosses in the transverse direction, and a groove penetrating through the whole transverse length of the base is formed between the two bosses in thelongitudinal direction. According to the invention, the whole structure is wavy; the bending radius can be reduced; the structure is mainly used for a cake-type resistance-type superconducting current limiter and plays a role in insulation and supporting; on one hand, the groove is indirectly formed, so that the contact area with liquid nitrogen can be increased, and heat exchange is improved; and on the other hand, the bosses are arranged on the two sides of the wave tape at intervals, so that the superconducting tape can be fixed, and creepage can be prevented.
Owner:BEIJING JIAOTONG UNIV
Power distribution device and power distribution equipment
ActiveCN111952865ANot susceptible to moistureExtended service lifeDispersed particle separationSubstation/switching arrangement casingsPower equipmentWater reservoir
The invention discloses a power distribution device and power distribution equipment, belongs to the technical field of power equipment, and is designed for solving the technical problems of short service life of a bus, creepage and flashover accidents and the like. The power distribution device comprises a box body and a dehumidification mechanism, the dehumidification mechanism is arranged on the box body, the dehumidification mechanism comprises a base, a plurality of baffles, a fan and a water storage pool, wherein the baffles are connected to the two ends of the base respectively, the fanis arranged on the base and located between the baffles, and hair blocks are arranged at the two ends, in the length direction, of each baffle. One end of the base is provided with an air inlet, theother end of the base is connected with a reservoir, and two sides of the base are provided with a plurality of plug wire terminals. According to the power distribution device and the power distribution equipment, the service life of the bus is prolonged, and accidents such as creepage and flashover are avoided to a certain extent.
Owner:GUANGDONG POWER GRID CO LTD +1
Method for cleaning high-tension porcelain bottle on top of locomotive by using leather balls
InactiveCN113246919APrevent creepageTo achieve the purpose of cleaning porcelain bottlesCleaning apparatus for railwaysAbrasive feedersFiberPolymer science
The invention relates to a method for cleaning a high-tension porcelain bottle on the top of a locomotive by using leather balls, which comprises the following steps: taking leather balls as a cleaning medium, launching the leather balls to the surface of the porcelain bottle to be cleaned by using a leather ball launcher, and taking away dirt by friction between leather fibers of the leather balls and the dirt on the surface of the porcelain bottle. The manual operation can be replaced to achieve the purpose of cleaning the porcelain bottle, the leather balls can be reused after being recycled, cleaned and aired, after the porcelain bottle is cleaned through the method, the cleanliness can reach 90% or above of the manual cleanliness, the cleaning effect meets the cleanliness requirement for preventing creepage of the porcelain bottle, and meanwhile the purposes of saving time and labor can be achieved.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
Image intensifier high-voltage power supply voltage doubling module integrated potting device and potting method
InactiveCN111889326AReduce health impactReduce testing costsPretreated surfacesCoatingsEngineeringElectronic component
The invention provides an image intensifier high-voltage power supply voltage doubling module integrated potting device and a potting method, and belongs to the technical field of micro-light image intensifier high-voltage power supplies. The image intensifier high-voltage power supply voltage doubling module integrated potting device and the potting method aim to solve the problems that a high-voltage power supply multiplying assembly is low in discharging test and fault check efficiency, and a power supply voltage doubling assembly is damaged due to discharging. According to the technical scheme, firstly, an electronic component and a wire are assembled onto a PCB board by using an electric soldering iron, and a complete voltage doubling circuit PCB board is obtained; secondly, the voltage doubling circuit PCB board is immersed in an affinity agent, is taken out and placed for 20 min, and is then inserted along a circuit board fixing groove in a potting shell; and thirdly, the potting shell arranged in the voltage doubling circuit PCB board is fixed in a fixture, potting glue is used for potting, the potting shell is put into a vacuum pump for vacuumizing and gas discharging after the potting shell is fully filled, and the potting glue is compensated for and put into a drying box for standing after gas discharging.
Owner:NORTH NIGHT VISION TECH
Stator coil straight line side measuring and line drawing device and method
PendingCN113954045AAdjustable lengthInsulation position is accurateOther workshop equipmentMechanical measuring arrangementsStator coilStructural engineering
The invention provides a stator coil straight line side measuring and line drawing device and method. The device comprises a supporting rod and a reference block, wherein the reference block is provided with an angle R; the extending face of the angle R is provided with a through hole and a check block; the supporting rod penetrates through the through hole of the reference block; the reference block is provided with a fastening screw; and the fastening screw penetrates into the through hole from one face of the reference block. The angle R of the reference block is determined according to the size required by a stator coil, and the reference block can freely slide on the supporting rod to adjust the length of the straight line edge, so that the straight line edge of each product can be drawn and measured by using the device, and the accuracy is high.
Owner:CSR ZHUZHOU ELECTRIC CO LTD
Cable outer sheath thermal shrinkage repair method
ActiveCN103986100BIncreased operating lifeIntegrity guaranteedApparatus for repairing insulation/armouring cablesProtection KITEngineering
The invention provides a cable outer sheath thermal shrinkage patching method. Specifically, a graphitic layer on the damaged part of a cable outer sheath is scraped off and smoothened through a glass sheet, the section with the damaged part of a cable is wound and sealed through an insulating belt, the insulating belt is wrapped by a protection cover, and thermal shrinkage processing is carried out on the protection cover. According to the technical scheme, damage and water and humidity entering of the cable thermal protection cover can be effectively prevented, and the operation safety of the cable is improved.
Owner:STATE GRID CORP OF CHINA +1
Wet-type electric dust remover equipment
InactiveCN111672632APrevent creepageAvoid dischargeElectrode carrying meansHollow article cleaningThermodynamicsEngineering
The invention provides wet-type electric dust remover equipment, which comprises a dust remover main body comprising a plurality of dust remover main body units, wherein each dust remover main body unit comprises a water collecting tank, a dust remover body and an air outlet cover which are arranged from bottom to top, the top of the dust remover body is communicated with the air outlet cover, thebottom of the dust remover body communicates with an air inlet, the air outlet cover is communicated with a negative pressure fan, the dust remover body comprises a box body and an electrode wire, aplurality of closed insulator mounting boxes are arranged around the box body, insulators are mounted in the insulator mounting boxes, and the upper portion of the insulator mounting box positioned atthe upper portion is communicated with the air outlet cover. According to the invention, creepage, discharge or temperature rise burst and other phenomena generated after the insulator is stained with dust are avoided; the inner wall of the pipe body and the electrode wires can be cleaned more comprehensively; the tips of the electrode wires are distributed in a three-dimensional mode, and the electrode wires are in a spiral sheet shape, so that the dust adsorption probability is increased, and the escape rate is reduced; the position degree of the electrode wire is accurate; the electrode wire is convenient to install; and water is saved, and secondary pollution is avoided.
Owner:GUANGDONG KELIN ENVIRONMENTAL PROTECTION EQUIP CO LTD
High-current terminal
InactiveCN111864437AAvoid excessLow implementation costSecuring/insulating coupling contact membersCoupling contact membersEngineeringElectric cables
The invention particularly relates to a high-current terminal. The terminal comprises a terminal body, wherein the terminal body is provided with a mounting cavity, the mounting cavity is communicatedwith the top surface and the front surface of the terminal body, a nut fixing groove and a copper sheet are arranged in the mounting cavity, one end of the copper sheet is arranged in the mounting cavity, the other end of the copper sheet penetrates through the inner wall of the mounting cavity and extends to the back surface of the terminal body, the copper sheet is provided with a bolt, a nut is arranged in the nut fixing groove, and one end of the bolt penetrates through the copper sheet to be connected to the nut. The advantages of the high-current terminal are that the structure is communicated with the top surface and the front surface of the terminal body through the mounting cavity, thereby enabling the cable connection not to be limited by the terminal structure; besides, the other end of the copper sheet penetrates through the inner wall of the mounting cavity and extends to the back surface of the terminal body, and the cable can be connected to the copper sheet in a multi-angle adjustment manner, so that the terminal body is prevented from being partially exceeding, and the implementation cost is reduced; in addition, the structure adopts isolation plate grooves to prevent the problems of creepage and short insulation distance.
Owner:GUANGDONG GUANGDA ELECTRICAL
Dust remover box structure of electric dust remover
InactiveCN111672633APrevent creepageAvoid dischargeElectrode carrying meansHollow article cleaningEngineeringMechanical engineering
The invention provides a dust remover box structure of an electric dust remover. The dust remover box structure comprises a dust remover body, wherein the top of the dust remover body is communicatedwith an air outlet cover, the bottom of the dust remover body communicates with an air inlet, the air outlet cover is communicated with a negative pressure fan, the dust remover body comprises a box body and an electrode wire, a plurality of closed insulator mounting boxes are arranged around the box body, insulators are mounted in the insulator mounting boxes, the upper portion of the upper insulator mounting box is communicated with the air outlet cover, the lower portion of the upper insulator mounting box is communicated with outside air, the lower portion of the lower insulator mounting box is communicated with the air inlet, and the upper portion of the lower insulator mounting box is communicated with the outside air. The insulator is mounted in the insulator mounting box, air in the insulator mounting box flows in from outside air and then flows out from the insulator mounting box, and the filtering device is added to filter the air entering the insulator mounting box, so thatthe cleanliness of the air is ensured, and creepage, discharge or temperature rise bursting and other phenomena generated after the insulator is stained with dust are avoided.
Owner:GUANGDONG KELIN ENVIRONMENTAL PROTECTION EQUIP CO LTD
A high-voltage flexible circuit board and multilayer flexible circuit board
ActiveCN105898982BIncrease the cross-sectional areaReduce widthPrinted circuit aspectsConductive pattern layout detailsFlexible circuitsVoltage drop
Owner:GUANGDONG SHUNDE SIRY TECH CO LTD
Discharge system for electrostatic voltage adjustment of high-voltage electrostatic equipment
InactiveCN112295739AAchieve controllable conduction functionNo mechanical structureElectric supply techniquesElectric field sensorEngineering
The invention belongs to the field of high-voltage static electricity, and discloses a discharge system for electrostatic voltage adjustment of high-voltage electrostatic equipment. The discharge system comprises a laser (JGQ), a control module, an electrostatic field sensor (CGQ), an electromagnet (DCT), a first electrode (JD1) and a second electrode (JD2). Laser is used as an electrical switch to achieve a controllable conduction function of a high-voltage electrostatic path, and Lorentz force is used to cut off an electrical path of an ionization curve to achieve a controllable disconnection function of the high-voltage electrostatic path. The system has the advantages of being long in service life, higher in reliability and easy to produce, and a new technical thought is provided.
Owner:杭州王之新创信息技术研究有限公司
Fast-assembly fusion tube type voltage transformer used in harsh environment
PendingCN113223833AHinder leakagePrevent creepageTransformersTransformers/inductances casingsThermodynamicsTransformer
The invention is suitable for the technical field of transformers, and provides a fast-assembly fusion tube type voltage transformer used in a harsh environment. The transformer comprises a three-phase voltage transformer; the top of the three-phase voltage transformer is provided with a fusion tube; a silica gel cap is arranged on one side of the fusion tube, and the fusion tube is detachably connected with the silica gel cap; a shielding net is arranged in the fusion tube, and the shielding net is connected with the fusion tube. Through the arrangement of the fusion tube and the silica gel cap, a user can disassemble the silica gel cap to disassemble and assemble a fuse in the fusion tube; through insulation and sealing of the silicone grease and sealing of the silica gel cap, ionization leakage is effectively prevented, creepage is prevented, the device can be used in areas with high pollution grade and severe salt mist, the difference of different use environments in domestic areas is solved, and the device can be used as a general product.
Owner:ZHOUSHAN ELECTRIC POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER +1
A vacuum circuit breaker for alpine regions based on supercharging reaction
ActiveCN109166758BExtended service lifeSave energyHigh-tension/heavy-dress switchesAir-break switchesCold areaVacuum interrupter
The invention discloses a vacuum circuit breaker for high-cold area based on boosting reaction, its structure includes circuit breaker main body, Circuit break mounting bracket, Insulator, open / closedrive lever, knife separator, isolation knife, As that vacuum circuit break is provided with a knife separate device, When the worker needs to overhaul the circuit breaker and switch it on or off, Asthat heat generate by the compressed air of the thermally pressurize structure causes the frozen water vapor to undergo liquefaction reaction, At this time, that work personnel can easily separate theknife of the circuit breaker from the contact part at the top of the insulator, the force of the switch is not pry open by other tools, the working efficiency is improved, the wear of the knife jointcaused by the pry tool is avoided, and the service life of the circuit breaker is prolonged, so that the contact part of the circuit breaker and the contact part at the top of the insulator are separated.
Owner:江苏金十字新材料有限公司
Rotary road assembly of generalization slip-ring rotor
InactiveCN103078225AReduce processing stepsGuaranteed matching accuracyRotary current collectorState of artMetal
The invention relates to a rotary road assembly of a generalization slip-ring rotor. The rotary road assembly comprises an insulating ring and a metal ring, wherein the insulating ring is of an integral structure formed by a circular flange and an annular boss; an excircle of the annular boss is matched with an incircle of the metal ring; and thread holes penetrating through the insulating ring are respectively and uniformly arranged in an upper surface of the annular boss along the periphery. An insulating shaft in the prior art is removed, and the functions of insulation and positioning of the insulating shaft are realized by adopting the insulating ring with a special structure to overlap, so that the manufacturing procedure for processing the insulation shaft is removed; only fit precision between the rotary road assembly assembled by the insulating ring and the metal ring and a central spindle needs to be ensured, so that the fit precision is also improved; the thread holes are processed in the insulating ring, so that cable conductors of different types can be distributed into the different thread holes, and the insulation between the cable conductors of different types is ensured; and a fan-shaped hole is processed in the insulating ring, and an inner wall of the metal ring is exposed, so that a cable can be conveniently welded on the inner wall of the metal ring.
Owner:中国船舶重工集团公司第七二三研究所
Oil-immerged inversed current transformer
ActiveCN1808646BEasy to installAvoid Explosion HazardsTransformersInductancesReverse currentInductor
This invention relates to one oil dipped reversed current mutual-inductor, which comprises one conductor bar, shell, second coil set, cover tube, expansion device and oil valve, wherein, the conductor bar passes the inner shield; the second coil set stretches outside shell to form the device; the shell, cover tube, base socket form sealed part full of isolation oil; inner shield, second wire tubeare covered with total isolation materials; the total isolation materials covering the inner shield and secondary wire for isolation.
Owner:JIANGSU SIYUAN HERTZ TRANSFORMER
Three-phase large-capacity AC collector ring device for hydro-generator
ActiveCN103795193BReduce feverIncrease cooling areaRotary current collectorDynamo-electric machinesRing deviceEngineering
The invention discloses a hydro-generator three-phase high-capacity alternating-current collecting ring device. According to the device, a shunt ring is adopted to reduce heating when currents flow through the collecting ring device, collecting rings of the special cooling structure are adopted to enhance cooling, the collecting rings are prevented from overheating to cause accidents, and the device is very suitable for being used on a variable-speed hydro-generator. The device comprises the collecting rings, hollow conductive rods, the shunt ring, a fixing nut, a shaft insulating ring and the like, wherein the collecting rings are arranged on a top shaft of the generator. The device is composed of the three collecting rings so that a three-phase alternating current power supply can be connected conveniently, and each collecting ring is provided with two hollow conductive rods which penetrate through the top shaft of the generator and are connected with an excitation copper bar of an inner cavity. The three sets of hollow conductive rods are arranged on three different axial sections in the top shaft respectively, and are evenly distributed according to circumferential 120 degrees, installation space in the top shaft is enlarged, vibration caused by asymmetric weight in a rotating process of a unit is also eliminated, and operation stability is improved.
Owner:HARBIN ELECTRIC MASCH CO LTD
An insulation and heat conduction device applied to high-voltage optical communication equipment
ActiveCN113825343BHigh strengthImprove thermal conductivityCircuit arrangements on support structuresSupport structure mountingElectrical conductorEngineering
The embodiment of the present application discloses an insulating and heat-conducting device applied to high-voltage optical communication equipment, including: a bracket, a cover plate, a plurality of connecting posts, and at least one ceramic insulating tank for installing power devices. One ends of the plurality of connecting columns are jointly fixed on the cover plate, and the other ends are jointly fixed on the bracket. In the embodiment of the present application, a bracket, a cover plate, a connecting column and a ceramic insulating tank are used to jointly constitute the installation structure of the power device. The ceramic insulating tank is the main equipment of the structure, using a new high-performance ceramic material, which has good machinability, high material strength, high thermal conductivity and insulation performance. Encapsulate the power device inside the ceramic insulating tank, which can achieve electrical isolation and heat conduction at the same time. It can not only prevent the power device from discharging and creeping to the external conductor when it is working, but also use the copper seat to conduct the heat emitted by the power device to the ceramic insulating tank. and conduct to the outside world through the ceramic insulating tank to realize heat dissipation.
Owner:华海通信技术有限公司
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