132results about How to "Does not affect insulation properties" patented technology

The present invention provides a flexible AMOLED display panel in which a hollow structure extending downwardly through at least the interlayered insulation layer is formed, starting from the interlayered insulation layer in a region other than the TFT structure; the hollow structure is filled with a planarization layer. Through the utilization of the organic materials in the planarization layer to replace the inorganic materials of the interlayered insulation layer, the gate electrode insulation layer and the buffering layer, it is possible to improve the stress performance of the flexible AMOLED display panel and prevent the breakage and come-off of a screen when the screen is bended; in addition, since the hollow structure is arranged in a region other than the TFT structure, the insulation effect among the gate electrode, the source electrode and the drain electrode in the TFT structure is not compromised.

The invention discloses a process method for prolonging the service life of an upper electrode of an etching machine table. The process method comprises the following steps of 1, shielding a sand blasting space around air holes of the upper electrode; then, performing sand blasting roughening treatment; 2, removing shelters and sand material impurities; 3, performing anodization on the upper electrode surface to form an anodization membrane; 4, shielding a spray coating space around the air holes of the upper electrode; then, spraying and coating a ceramic coating; 5, removing shelter impurities; then, performing drying treatment. The service life of the upper electrode can be effectively prolonged; the corrosion resistant performance is excellent.

Provided is a method for measuring the temperature of a high-voltage/extra-high-voltage cable connector by using a fiber. The method is characterized by comprising an external temperature-measuring fiber 1, an internal temperature-measuring fiber 5, a temperature-measuring probe fixing clamp 9, and a temperature demodulator 13. The external temperature-measuring fiber 1 comprises a ST fiber connector 2, an external fiber 3, and an external fiber connector 4 which are successively connected. The internal temperature-measuring fiber 5 comprises an adapter embedded member 6, an internal fiber 7, and a temperature-measuring probe 8 which are successively connected. The temperature-measuring probe fixing clamp 9 fixes the temperature-measuring probe 8 to an end cap embedded member 11 by means of a screw 10. The internal temperature-measuring fiber 5 is connected with the external fiber connector 4 via the adapter embedded member 6. The external temperature-measuring fiber 1 is connected with the fiber interface 14 of the temperature demodulator 13 through the ST fiber connector 2. The method online monitors the operating temperature of a cable connector in real time.

The invention discloses a self-cleaning composite insulator. The insulator comprises an insulating rod, and a metal cap and an umbrella skirt which are arranged on the insulating rod; and the insulator further comprises: a cleaning device arranged above the umbrella skirt, a first driving device connected with the cleaning device and used for driving the cleaning device to move so as to clean thetop end of the umbrella skirt, and a second driving device installed on the metal cap and used for driving the cleaning device to move up and down so as to make contact with or be separated from the top end of the umbrella skirt. In the present invention, the second driving device is arranged on the metal cap; and, during sweeping, the second driving device drives the sweeping device to move downwards to make contact with the top ends of the umbrella skirts. The first driving device drives the sweeping device to rotate to sweep the top end of the umbrella skirt, when the insulator is not swept, the second driving device drives the sweeping device to move upwards to be separated from the top end of the umbrella skirt, the sweeping device is prevented from making contact with the umbrella skirt all the time to influence the insulativity of the insulator, and the insulator has a self-cleaning function and does not influence the insulativity of the insulator.

The invention relates to a metal ageing resisting type enhanced nylon material. The nylon material is prepared from the following raw materials in percentage by weight: 44 to 63% of nylon, 23 to 32% of continuous long glass fibers, 22 to 26% of a complex halogen-free flame retardant, 0.3 to 0.5% of an antioxidant, 0.3 to 0.5% of an anti-copper agent, 4 to 6% of a compatilizer, and 0.1 to 0.6% of a lubricant. The invention further provides a preparation method of the metal ageing resisting type enhanced nylon material. The metal ageing resisting type enhanced nylon material has an advantage that the proper anti-copper agent is adopted, so that the copper damage resisting effect is obvious; the metal ageing resisting type enhanced nylon material further has the advantages of being high in compatibility for nylon, high in dispersing performance, free of migration, free of pollution, resistant to water, high in oil extraction performance, and free of influence on electric insulation performance and other performances of the nylon; meanwhile, a rolling and infiltration mode is adopted in production, so that the retention length of the continuous long glass fibers is more than that of the common method, and thus, the material is very high in strength.

The invention discloses a cabin static contact-free non-SF6 gas insulated isolating switchgear, and belongs to the field of medium-voltage switchgears. For the problems that in the prior art, the non-SF6 gas insulated switchgear is poor in arc extinguishing effect, poor in insulativity and weak in safety, the cabin static contact-free non-SF6 gas insulated isolating switchgear comprises an air chamber, a mechanism chamber, an instrument chamber, a cable chamber, a pressure release chamber and a busbar connector chamber; the air chamber comprises a busbar connector, a circuit breaker, a three-position switch, a busbar, a lead-out bushing and a gas tank which are connected in sequence, the three-position switch, the circuit breaker and the busbar are installed in the closed gas tank, the busbar connector and the lead-out bushing are installed on a gas tank shell, the gas tank is filled with non-SF6 insulating gas, and the circuit breaker is an enclosed type vacuum arc extinguishing circuit breaker. The switchgear is free of maintenance, damage of a severe environment to the insulativity is effectively prevented, and normal and safe operation of the switchgear is guaranteed.

The invention discloses a method and a mould for producing a first outer-packing vacuum arc extinguishing chamber of a phase post of a circuit breaker element. The method comprises a mould closing step, an injection step, a demoulding step and a second outer-packing step, wherein the mould closing step is used for arranging a vacuum arc extinguishing chamber into a mould and closing the mould, theexposed electric conducting part of a contact of the movable end of the vacuum arc extinguishing chamber of the phase post of a circuit breaker element is covered by a first mould head, and the exposed electric conducting part of the contact of the static end of the vacuum arc extinguishing chamber is covered by a second mould head to prevent the electric conducting part from being wrapped by silicon rubber in the injecting process of the next step, and the conductivity of the electric conducting part is guaranteed; and besides, the mould head enables the vacuum arc extinguishing chamber to be positioned in the mould to guarantee the size after the silicon rubber is wrapped; the injection step is used for injecting liquid silicon rubber into the mould so as to be formed by reaction; the demoulding step is used for taking out the first outer-packing vacuum arc extinguishing chamber by demoulding after the silicon rubber is formed by reaction; and the second outer-packing step is used for secondly packing the resin outside the first outer-packing vacuum arc extinguishing chamber to produce the product of the phase post of the breaker element.

The invention provides a voltage-sharing shielding ring hyper-frequency signal lead-out device in a basin-type insulator, which is used for leading out a hyper-frequency signal of a GIS (Gas Insulated Switchgear). The device comprises a conductive lead-out rod arranged inside a bolt mounting hole of the basin-type insulator to be electrically connected with a voltage-sharing shielding ring, insulated fixed sleeves sleeving on the outer side of the conductive lead-out rod to insulate the conductive lead-out rod from an outer casing and insulate the conductive lead-out rod from an outer conductor of a monitoring device, and metal conductive bands arranged on the outer surface of the insulated fixed sleeves and capable of being electrically connected with the outer casing. The invention is used in the fields of partial discharge monitoring and fault diagnosis, avoids the phenomena that the sensitivity of an external sensor of the GIS is poor and an internal sensor of the GIS affects the insulativity, and provides the signal lead-out device; the structures of all the components of the device are simpler, the assembly of the components and the operation of integrally mounting with the GIS are comparatively convenient and fast, and the purpose that the GIS is monitored more precisely, conveniently and quickly can be achieved.

The present invention discloses a direct current cable accessory silicon rubber insulation surface layer molecular structure regulation and control device and method. The method comprises the following steps: (1) employing a vacuum pump to extract internal air of a reactor, closing the vacuum pump after vacuum pumping is completed, opening a nitrogen cylinder reducing valve, injecting nitrogen into the reactor and reaching an environment air pressure, and repeatedly performing the process for at least five times; (2) slowing filling fluorine and nitrogen gas mixture with 20% of volume fraction of fluorine into the reactor to allow the air pressure in the reactor to reach up to 300 mbar; (3) going on filling fluorine into the reactor until the air pressure of the reactor reaches up to 500 mbar to allow the fluorine and nitrogen gas mixture to react with silicone rubber samples, keeping the temperature in the reactor at 25 DEG C, replacing C-H bond in the silicone rubber sample surface layer molecule with C-F bond after a certain reaction time, and obtaining the silicone rubber samples with a surface layer molecular structure forming a space charge shielding layer having electronegativity. The direct current cable accessory silicon rubber insulation surface layer molecular structure regulation and control device and method can enhance the charge screening effect of the direct current cable accessory silicon rubber insulation space.

The invention belongs to the technical field of electrical materials, and particularly relates to a preparation method of a medium-high temperature self-repairing insulating material. At present, mostof extrinsic self-repairing systems are double-component microcapsule systems, the systems are complex in structure, it is difficult to ensure that a repairing agent can make contact with a catalystand complete self-repairing before failure when a micro-discharge defect occurs, and common single-component system repairing liquid contains unsaturated double bonds and is prone to failure in advance at the medium-high temperature. The preparation method comprises the steps: firstly, synthesizing an imidazole-added epoxy resin matrix with anion catalytic capability, and introducing microcapsulescoated with stable repair liquid into the matrix to endow the insulating material with the capability of repairing micro-discharge defects. When electric branches caused by micro-discharge defects are developed into microcapsules, the microcapsules can be broken, electric branch channels are filled with the repairing liquid, and then the repairing liquid is cured under the catalysis of oxygen anion groups in the channel walls under the medium-high temperature condition, so that the defects of the electric branches are repaired, and meanwhile, the electrical performance is completely recovered.

The invention discloses a GIS internal bus operating temperature online monitoring system and method based on the acoustic surface wave technology. The system comprises a collector and an SAW temperature sensor. The collector is installed on a shell of a gas insulating switch. A bus is arranged in the shell of the gas insulating switch. The SAW temperature sensor is a passive wireless temperature sensor. The SAW temperature sensor is installed at the position of a contact of the bus. The collector is used for transmitting radio frequency signals to the SAW temperature sensor to serve as drive signals of the SAW temperature sensor. By means of the collector and the SAW temperature sensor, the operating temperature of the bus in the gas insulating switch can be monitored. The system fully utilizes the characteristic of the acoustic surface wave technology, and achieves online monitoring of the operating temperature of the insulating switch in a GIS on the premise of ensuring the insulating performance in the GIS. The invention discloses the monitoring method.

The invention discloses a tripping monitoring method for a 10kV circuit breaker. The method specifically includes the following steps that: step 1, a signal acquisition module acquires signals; step 2, a signal conditioning module filters and amplifies the acquired signals in step 1 and transmits the signals to a processor; step 3, the processor judges whether the acquired signals exceed a set threshold value during an acquisition process; step 4, the processor performs wavelet denoising on the acquired signals; step 5, contact linear displacement L is calculated according a circuit breaker spindle angular displacement which has been subjected to wavelet denoising; step 6, the tripping time of the circuit breaker is calculated; and Step 7, the processor uploads the tripping time of the circuit breaker to a circuit breaker status monitoring IDE, so that the health condition of the circuit breaker can be monitored, and the service life of a contact can be predicted. With the tripping monitoring method for the 10kV circuit breaker of the invention adopted, the tripping time of the circuit breaker can be calculated accurately, and therefore, the health condition and mechanical life of the circuit breaker can be judged.

The embodiment of the invention discloses a refilling type sulfur hexafluoride decomposition product chromatography online detector. The refilling type chromatography detector is used for single-hole sulfur hexafluoride electrical equipment, achieves automatic online detection and analysis of insulating gas of the sulfur hexafluoride electrical equipment in the modes of vacuumizing, sample collection, sample analysis and sample refilling, has multiple detection components and high detection precision and can achieve automatic sampling, detection and refilling of sampling gas of the sulfur hexafluoride electrical equipment, so that harm caused by gas emission to personnel and environment is avoided, the insulativity of the electrical equipment cannot be affected by gas refilling, and the online detection frequency and timeliness of sulfur hexafluoride are greatly improved.

The invention relates to a micro-water content fiber laser detector based on secondary modulation and data stitching technology. The fiber laser detector comprises a one-chip microcomputer, a laser, a first fiber coupler and a probe. A first laser output end of the firs fiber coupler is connected with the probe. A second laser output end of the first fiber coupler is connected with a second fiber coupler, a first laser output end of which is respectively connected with a first photoelectric detector and the one-chip microcomputer. A second laser output end of the second fiber coupler is respectively connected with a reference air chamber, a third photoelectric detector and the one-chip microcomputer. The probe comprises a fiber collimator assembly which is used to couple laser from the inside of fiber to gas and make laser return into fiber. A loop laser signal output end of the first fiber coupler is respectively connected with a second photoelectric detector and the one-chip microcomputer. The one-chip microcomputer is also connected with a temperature and pressure transmitter. The micro-water content fiber laser detector is not easily influenced by infrared radiation such as temperature and the like, is not subject to electromagnetic interference, has better insulating properties and security, and can be used to detect more accurately.

The invention discloses aramid insulation paper and a preparation method thereof. The preparation method comprises the steps: producing an aramid chopped fiber by adopting a low-molecular-weight aramid polymerization liquid, producing an aramid pulp by adopting a high-molecular-weight aramid polymerization liquid, and carrying out dispersion and defibering treatment on the aramid chopped fiber and the aramid pulp respectively by an ultrasonic disperser; mixing the aramid pulp and the aramid chopped fiber which are treated by the ultrasonic disperser, to form a mixed liquid; carrying out wet papermaking treatment on the mixed liquid by a multi-layer inclined wire forming device, and carrying out one-step forming and papermaking to obtain raw paper with 250-800 g/m<2>; under conditions of the temperature of 100 DEG C-180 DEG C and the linear pressure of 230-280 kg/cm, carrying out multichannel press polishing on the raw paper to form the aramid insulation paper. The produced aramid insulation paper cannot generate layering, bubbles and other defects, does not affect the flame-retarding characteristic and high temperature and insulation properties of original aramid insulation paper, and improves the use effect and the service life of the aramid insulation paper.