18 results about "High voltage capacitors" patented technology

This invention belongs to the field of high-voltage capacitors and discloses a method and related apparatus for evaluating the dielectric loss of high-voltage capacitors. First, by collecting low-voltage dielectric loss data and corresponding rated high-voltage loss data of high-voltage capacitor samples at various voltages and frequencies, a mapping table from low-voltage to high-voltage loss is constructed. Iterative partitioning and optimization of the dividing points are then used to ensure mapping accuracy. This method learns the overall law of loss variation with voltage in a data-driven manner, thereby avoiding the deviation caused by the Garton effect in direct low-voltage measurements and avoiding errors caused by parameter sensitivity in traditional nonlinear fitting. Using this method, high-voltage dielectric loss can be conveniently evaluated in engineering sites using only low-voltage measurements, without the need for high-voltage experimental conditions and professional operators, significantly reducing measurement costs and complexity, while effectively improving the accuracy and engineering applicability of loss evaluation.

The utility model relates to vehicle air conditioner compressor detection technical field, concretely relates to a kind of dynamometer function detection safety electrical connection mechanism:Including starting contactor, discharge contactor, high voltage capacitor, discharge resistance, LED pilot lamp, test start button and test stop button, starting contactor and high voltage capacitor are set in high voltage direct-current power supply and the high voltage direct-current bus of measured controller assembly, starting contactor controls power on-off, high voltage capacitor can inhibit the inrush current when contactor action, reduce the impact to measured controller assembly, avoid TVS tube burst, test stop, discharge contactor attraction, discharge through discharge resistance for high voltage capacitor, LED pilot lamp real-time display discharge state, guarantee the safety of operator, measured controller assembly is connected with measured permanent magnet synchronous motor, operating computer communication, ensure that test data accurate acquisition and analysis, improve the security and data accuracy of test process.

The utility model relates to the technical field of circuit breaker especially, a pole switch with image monitoring device, including high voltage capacitor electricity -taking power supply, camera device and 10KV high voltage circuit breaker, high voltage capacitor electricity -taking power supply and camera device are integrated in 10KV high voltage circuit breaker, and high voltage capacitor electricity -taking power supply obtains electric energy from high voltage line through 10KV high voltage circuit breaker, and high voltage capacitor electricity -taking power supply converts high voltage alternating current into low voltage direct current, and high voltage capacitor electricity -taking power supply powers camera device, and camera device is used for the monitoring of line, ground environment and forest fire prevention, and 10KV high voltage circuit breaker cuts off the line when detecting the fault. The utility model realizes real -time visual monitoring to high voltage line and its surrounding environment, can stably operate in the remote area without municipal power supply, solves the problem that traditional image acquisition equipment is difficult to deploy due to the lack of reliable power supply.

The utility model provides a kind of 3VA ultra-low power consumption's primary and secondary depth fusion device, including primary switch and FTU controller, primary switch is built-in for the pole of capacitor power taking, and its power side and load side are connected with the output end of a pole respectively;Capacitor power taking module is arranged in pole, and capacitor power taking module includes capacitor voltage divider and electromagnetic unit, one end of the high voltage capacitor of capacitor voltage divider is connected with the high voltage terminal of primary switch, and the other end is connected with the low voltage terminal of primary switch by low voltage capacitor, and the medium voltage capacitor tap of high voltage capacitor and low voltage capacitor is connected with the input end of electromagnetic unit, and electromagnetic unit provides matching inductive compensation output standard 24V low-voltage alternating current.The utility model reaches the effect of easy installation and maintenance, efficient electric energy conversion, low-power operation and self-adapting power management by setting the pole of built-in capacitor power taking in primary side and the power management module of FTU controller.

A single-drive gate cascaded high-voltage MOSFET module circuit includes: a MOSFET, a static voltage equalization resistor, a high-voltage capacitor, a high-voltage avalanche diode, a transient voltage suppressor (TVS) diode, a drive resistor, and a varistor (MOV). The present invention has a simple drive structure and also has excellent switching characteristics, superior dynamic and static voltage equalization effects, and low module loss.

A gate driver circuit to receive an input drive signal and output an output drive signal is provided. The gate driver circuit may include a first capacitor having first and second terminals, a second capacitor having first and second terminals, a first set of switches to selectively couple the first terminals of the first and second capacitors to the input drive signal and a power supply voltage, a second set of switches to selectively couple the second terminals of the first and second capacitors to a reference voltage and a high impedance node, and a comparator having a first terminal coupled to the reference voltage and a second terminal coupled to the high impedance node. The comparator may output the output drive signal based on a comparison of the reference voltage and a voltage at the high impedance node.

The utility model provides a kind of circuit board and radio frequency device, circuit board includes: board ontology is equipped with jumper area, first connection area and second connection area;Coupling line is set to board ontology, coupling line is equipped with multiple, multiple coupling lines are spaced distribution, and the one end of each coupling line is arranged in first connection area;Lightning protection wire is set to board ontology, one end of lightning protection wire is arranged in second connection area, lightning protection wire and coupling line are mutually isolated and mutually not intercommunicate;And, high voltage capacitor element is connected to lightning protection wire and located in second connection area, high voltage capacitor element is between lightning protection wire and coupling line, and high voltage capacitor element ground is set. Bypass ground high voltage capacitor influences high-frequency interference signal on nearby coupling line, reduces the signal interference between each coupling line, improves isolation index, to improve anti-interference ability, satisfy complex communication scene under high performance demand.

The present application relates to the technical field of high-voltage measuring device of electric multiple unit power system, and particularly relates to a capacitive voltage transformer for electric multiple unit. The voltage transformer is formed into an integrated full-enclosed main insulator by epoxy resin vacuum casting, and the primary high-voltage terminal is a stepped round table type standard C head structure. The inside is composed of a high-voltage capacitor and a low-voltage capacitor to form a capacitive divider, cooperate with a reactor to realize impedance compensation, cooperate with a damper to suppress resonance and overvoltage, and set a protection gap to realize overvoltage protection, and all wiring terminals are arranged in a sealed secondary wiring table. The present application has the advantages of capacitive voltage division and electromagnetic measurement, has the characteristics of small size, flexible installation, anti-resonance, anti-interference, high precision, strong protection, maintenance-free, etc., can adapt to the compact space and harsh operating environment of electric multiple unit, and is suitable for high-voltage measurement and relay protection system of electric multiple unit.

This invention provides a high-voltage capacitor-specific tape, comprising a substrate, an adhesive coated on the surface of the substrate, and a primer coated between the substrate and the adhesive. The adhesive is prepared by mixing a main resin and functional additives, wherein the functional additives are prepared by mixing fillers, crosslinking agents, stabilizers, and anti-hydrolysis agents. The high-voltage capacitor-specific tape proposed in this invention provides insulation properties within the capacitor, making it less prone to breakdown under high voltage. It also exhibits a high and stable breakdown retention rate under high-frequency alternating high voltage and possesses self-repairing properties for electrical tree repair after breakdown, significantly increasing the tape's service life.

This invention provides a self-healing high-voltage capacitor safety protection device, belonging to the field of capacitor protection technology. It includes a cabinet, a capacitor body fixed to the cabinet by support rods, and a mounting plate fixed to the capacitor body. The capacitor body is equipped with a pressure relief protection mechanism located directly below the capacitor body, which provides directional pressure relief protection for the capacitor body. A positioning mechanism is mounted on the mounting plate and adapted to the pressure relief protection mechanism, allowing for the installation and removal of the pressure relief protection mechanism. By implementing the pressure relief protection mechanism, directional pressure relief of the capacitor body is achieved, avoiding dangerous areas along the path and preventing direct spraying of pressure onto surrounding equipment, thus avoiding secondary accidents such as flashover and short circuits, effectively solving the problem of secondary accident hazards.

A method for operating a bidirectional DC-DC converter is presented. The method involves precharging two high-voltage capacitors so that the voltage across each capacitor is balanced. Each capacitor is connected to an input of one of the two cascaded, phase-shifted full-bridge converters of the DC-DC converter. Precharging is performed by a controller connected to the DC-DC converter closing a first static bypass switch and a second static bypass switch, and simultaneously operating the full-bridge converters by executing a switching sequence. The bidirectional DC-DC converter comprises a primary and a secondary side connected by at least one transformer.The DC-DC converter comprises two cascaded phase-shifted full-bridge converters on the primary side, each of which is connected to a respective transformer, each of which is connected to a full-bridge converter on the secondary side.

The utility model discloses a modularization high pressure energy storage pulse power belongs to power supply technical field, including box body, and set up in the high voltage capacitor of box body, charging switch, discharge switch, power supply subassembly and discharge binding post, the bottom of charging switch and discharge switch is equipped with the fixed structure of being convenient for installation, and the fixed structure is fixedly connected with the inner chamber bottom of box body, through setting fixed structure, utilize the mutual cooperation between rotary disc, transmission rod and clamping block, can conveniently install charging switch and discharge switch in the specific position of box body, and adjust the contraction of clamping block, can adapt to different model or the electromagnetic control mechanism of specification, also can accurately fix electromagnetic control mechanism, ensure that the installation position of switch in the box is accurate and stable, the whole modularization high pressure energy storage pulse power's assembly and debugging process are convenient, adjust the expansion of clamping block simultaneously, can easily dismantle electromagnetic control mechanism, and the component is convenient to maintain and replace.

A semiconductor device and a method for manufacturing the same; the method includes: forming a first plate of a high-voltage capacitor; forming interlayer dielectric layers over the first plate of the high-voltage capacitor as dielectric layers of the high-voltage capacitor; etching the interlayer dielectric layers to form a deep trench; forming a first plate of the silicon capacitor on a sidewall and a bottom of the deep trench, the first plate of the silicon capacitor being connected with the first plate of the high-voltage capacitor; forming a dielectric layer of the silicon capacitor on the sidewall and the bottom of the deep trench; forming a second plate of the silicon capacitor in the deep trench; and forming a second plate of the high-voltage capacitor over the top interlayer dielectric layer. The manufacturing of the high-voltage capacitor and the silicon capacitor is integrated in one process, saving the manufacturing cost.

A high-electric-field capacitive material module, a high-voltage capacitor, and their fabrication method are disclosed, belonging to the field of capacitor technology. The module includes: overlapping multilayer films, with odd-numbered and even-numbered film layers staggered along the length and width directions; each film includes an insulating base layer and a conductive layer disposed on the insulating base layer; the conductive layer includes an array of multiple metallized electrodes, with adjacent metallized electrodes forming elementary capacitors. Elementary capacitors distributed along the potential gradient are in series, while those at the same electric field potential nodes are in parallel. Both series and parallel arrangements are interconnected through the interaction of the dielectric electric field. The high-voltage capacitor includes the above module, with the two ends along the length direction of the module serving as the positive and negative electrodes, respectively, and multiple node electrodes on both sides along the width direction. This solution makes capacitor design and application more diverse, providing richer capacitor design content and optimizing the design space for high-voltage, high-current problems.

This invention discloses a three-split capacitor support foundation structure and its construction method, comprising a base plate, three-split columns, and an upper support platform. The three-split columns are evenly arranged along the circumference and correspond one-to-one with the three legs of the high-voltage capacitor. The upper support platform is located at the upper center of the three-split columns and is fixedly connected to the legs. The base plate is located below the three-split columns and is an integral self-healing reinforced concrete structure with expansion joints. The construction method forms an integral foundation through segmented casting. During the casting process, self-healing microcapsules and chemically activated components are pre-embedded in the concrete structure. By rationally setting the position and depth of the expansion joints, temperature stress release and automatic crack repair are synergistically controlled. The beneficial effects of this invention are: through segmented independent stress, the synergistic design of self-healing concrete and expansion joints, crack prevention, earthquake resistance, and material saving are integrated, significantly improving structural stability and service life, and ensuring safe equipment operation.

The utility model relates to a kind of high voltage capacitor voltage transformer transient response test system, including voltage regulating unit, output end and high voltage vacuum switch, the capacitor of being tested capacitor voltage transformer, reference voltage transformer connection;High voltage vacuum switch control loop, including closing button, and multiple branches connected with it;The multiple branches are located in high voltage vacuum switch, and the one end of the closing button and multiple branches connection is as control end and phase selector connection;Electronic measuring equipment, with reference voltage transformer secondary side terminal, the secondary side current transformer of being tested capacitor voltage transformer, being tested secondary side terminal connection.The utility model can complete the existing international general two kinds of frequency 50Hz and 60Hz voltage transformer transient response test, facilitate voltage transformer secondary terminal measurement wiring, make transient response test process simplify, improve overall test safety factor, guarantee personnel safety, improve transient response test efficiency.

The utility model discloses an integrated alternating current sensor relates to outdoor pole circuit breaker technical field, this integrated alternating current sensor includes the casting casing, install high voltage capacitor in the casting casing, the casting casing bottom is equipped with the adjustment groove of downward opening, detachably install the adjustment circuit board in the adjustment groove, install low voltage side secondary capacitor on the adjustment circuit board, the adjustment circuit board installs the voltage secondary output line for the output secondary voltage signal of the partial pressure after extending to outside, the utility model discloses the adjustment groove space with detachable adjustment circuit board of reservation, can select to assemble and match one or more secondary capacitor of high voltage capacitor after sensor casting forming, the secondary voltage output error part of sensor is adjusted, makes voltage partial error value in the qualified range again after packing, avoids the product scrappage caused by sensor voltage error unable to adjust, improves product qualified rate.