94 results about "High voltage capacitors" patented technology

To provide a controller of a hybrid vehicle which can suppress a relay selectively connecting between a power storage device and a control unit to drive a motor from being solid-phase bonded.SOLUTION: A controller of a hybrid vehicle comprises: a first motor which converts power of an engine into electric power; a second motor which is driven by the electric power generated by the first motor; a step-up converter which boosts output voltage of a battery to be output to respective motors; a relay which is arranged between the battery and the step-up converter; a low voltage capacitor which is arranged close to the battery side relative to the step-up converter; and a high voltage capacitor which is arranged close to respective motor sides relative to the step-up converter. In a case that conductive state of the relay continues for a predetermined time period or more, voltage of the high voltage capacitor is kept being higher than that of the low voltage capacitor (step S3) and then the relay is switched to a cut-off state (step S6).SELECTED DRAWING: Figure 4

The invention discloses an electromagnetic ejection seismic source for seismic exploration in a well and an excitation method, which can continuously excite seismic waves, realize flexible output of seismic wave frequency and energy level, meet the requirement of shallow exploration for high-frequency signals in the well and adapt to the requirement of middle and deep layers for low-frequency signals. The seismic source comprises a control system, a shell and an electromagnetic ejection system, the control system is arranged at the top of the shell, the electromagnetic ejection system is arranged in the shell, the electromagnetic ejection system is connected with the control system, and the control system is used for controlling the electromagnetic ejection system, so that the electromagnetic ejection system hammers the well wall from the two sides of the shell at the same time, and the same seismic waves are generated on the well walls on the two sides of the shell at the same time; the excitation method comprises the steps of setting parameters, charging the high-voltage capacitor bank, charging the coil to enable the catapult to move in an accelerated mode, powering off the coil after the catapult reaches a balance position, enabling the hammer body to hammer a well wall when the catapult moves to a limit position, powering on the coil to enable the catapult to move reversely to enable the hammer body to return to an initial position after hammering delay time is reached, and the like.

The utility model belongs to the technical field of high-voltage test equipment, and particularly relates to a high-capacity high-voltage pulse direct-current generator, which comprises a power supply, the power supply is connected with the input side of a voltage regulator through a disconnecting link and a fuse, and the output side of the voltage regulator is connected with the low-voltage side of a boosting transformer. A live wire port of the high-voltage side of the boosting transformer is connected with an anode of the high-voltage rectification silicon stack, a cathode of the high-voltage rectification silicon stack is connected with an anode of the discharge gap ball, a cathode of the discharge gap ball is connected with an anode of a tested device, and a cathode of the tested device is connected with a null line port of the high-voltage side of the boosting transformer. A high-voltage capacitor is connected in parallel between the positive electrode of the discharge gap ball and the negative electrode of the tested equipment, and the high-capacity capacitor unit is formed by connecting two capacitors in parallel, so that compared with the direct purchase of a high-capacity capacitor, not only is the equipment cost reduced, but also the capacity of the capacitor is remarkably improved.

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.

Sensored insulation plug for a medium voltage or high-voltage separable connector in a national grid, and operable to insulate a connection element of the separable connector on an elevated voltage and to simultaneously detect and sense the elevated voltage. The sensored insulation plug comprises a) a plug body formed by a solidified insulating material, b) an externally accessible detection contact, c) a primary capacitor, operable as a high-voltage capacitor in a sensing voltage divider for sensing the elevated voltage, the primary capacitor having i) a high-voltage electrode; ii) a sensing electrode embedded in the plug body; iii) a dielectric formed by a first portion of the insulating material, and d) a testpoint capacitor, operable as a high-voltage capacitor in a detection voltage divider for detecting the elevated voltage and comprising i) the high-voltage electrode, ii) a testpoint electrode, embedded in the plug body and electrically connected to the detection contact, and iii) a dielectric formed by a second portion of the insulating material.

The invention belongs to the technical field of fluid control, and discloses a high-speed electric control valve and a control method thereof, and the valve comprises a tubular valve body, an internal diaphragm, a metal explosion wire adhered to the diaphragm, a connecting electrode and a control circuit. The energy storage circuit module is composed of a high-voltage capacitor and a fast thyristor, when a trigger signal is received, the thyristor is conducted to enable the capacitor to instantly discharge to the explosion wire, the metal wire is gasified to generate shock waves to break down the diaphragm, and microsecond-level high-speed conduction is achieved. The diaphragm is preferably a polyimide film with the thickness of 10-100 microns, the explosion wire is a copper / tungsten wire with the diameter of 0.05-0.5 mm, and the explosion wire is matched with a capacitor with the charging voltage of 200-1000 V and the capacitance value of 10-1000 [mu] F. The control method comprises the steps of diaphragm installation, capacitor charging, triggering signal sending, high-voltage discharging and diaphragm breaking conduction, and reliable operation is ensured by dynamically adjusting charging voltage and adopting an optical fiber / wireless triggering mode. The invention has the characteristics of fast response and strong interference resistance, and is suitable for high pressure difference occasions needing to accurately control the on-off of gas.

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 discloses peculiar smell treatment equipment for high-voltage capacitor production in the field of treatment equipment, which comprises a fixed box, a connecting frame is slidably inserted in the middle of the fixed box along the vertical direction, activated carbon is arranged on the inner side of the connecting frame and positioned above a bottom plate, and first porous screen plates are mounted in the middles of frame bodies on two sides of the connecting frame; a first fixed pipe communicated with the interior of the fixed box is installed in the middle of the surface of one side of the fixed box, and an induced draft fan is installed on the inner side of the first fixed pipe, so that in the using process, peculiar smell and harmful gas generated in the production of the high-voltage capacitor can be treated; according to the high-voltage capacitor production device, peculiar smell and harmful gas generated in high-voltage capacitor production can be conveniently extracted and filtered, harm to the body health of workers due to the peculiar smell and the harmful gas can be prevented, pollution to the surrounding environment due to the peculiar smell and the harmful gas can be avoided, and the living quality of surrounding residents can be guaranteed.

The application provides an earthquake-resistant high-voltage capacitor bank for extra-high voltage direct current transmission engineering, which comprises a high-voltage tower and a low-voltage tower, the high-voltage tower and the low-voltage tower comprise a plurality of capacitor frame layers, each capacitor frame layer comprises a frame and a plurality of capacitor units, the frame comprises six load-bearing channel steels and four vertical steel pipes, the frame has a rectangular frame structure, the load-bearing channel steels form the main body of the rectangular frame structure, the steel pipes are arranged at four corners of the rectangular frame structure, and the capacitor units are installed on the load-bearing channel steels, the capacitor frame layers are connected through interlayer composite support insulators, and the interlayer composite support insulators are connected with the steel pipes of the capacitor frame layers above and below. The application solves the problem that the high-voltage capacitor bank in the prior art cannot reach a high tower layer number and a high earthquake level acceleration on the basis of a double-tower.

The invention discloses a high-reliability small-size combined high-voltage capacitor convenient to assemble, and belongs to the technical field of high-voltage capacitor production, the high-reliability small-size combined high-voltage capacitor convenient to assemble comprises a shell and a plurality of capacitor cores arranged in the shell, the plurality of capacitor cores are sequentially arranged to form a capacitor core group, and in the capacitor core group, a plurality of capacitor cores are arranged in the shell. The first ends of all the capacitor cores and the second end of the first capacitor core are respectively provided with an extraction electrode, and after the extraction electrode at the second end of the first capacitor core is bent by 90 degrees, the end portion of the extraction electrode corresponds to the positions where the end portions of all the other extraction electrodes are located. The first end of the previous capacitor core is conductively connected with the second end of the next capacitor core through a conductive connecting sheet, an insulating isolation plate is arranged between two adjacent capacitor cores, and the conductive connecting sheet passes through a through groove or a through hole in the corresponding insulating isolation plate. The size of the whole capacitor is reduced, the assembling difficulty is reduced, the insulating property and the product reliability are improved, and application is convenient.

The invention provides a polyaryletherketone-based energy storage dielectric composite material as well as a preparation method and application thereof. According to the preparation method, polyaryletherketone containing active functional groups is adopted as a base material, flame-retardant polyphosphazene particles are adopted as an additive filler, and aromatic groups are grafted on the surfaces of the polyphosphazene particles after functional modification, so that the heat resistance, the breakdown field strength and the energy storage density of the composite material can be improved. The functionalized and modified polyphosphazene particles can be subjected to a cross-linking reaction with a polyaryletherketone matrix to form a three-dimensional network structure, and the polyaryletherketone-based energy storage dielectric composite material with good heat resistance, pressure resistance and flexibility is obtained. The heat resistance grade of the composite dielectric material is higher than 150 DEG C, the energy storage density reaches 6.3-11.0 J / cm < 3 >, and the energy releasable efficiency is not lower than 90%. Meanwhile, the oxygen index value is about 40%, and the material belongs to a flame-retardant material. The invention provides a high-temperature-resistant, high-energy-storage and flame-retardant energy storage dielectric material which can be used for a high-voltage capacitor.

A method and a system for initial self-healing type classification of metallized film capacitors, which relate to the technical field of high-voltage capacitors. The method comprises: applying voltages at different voltage ramp rates to metallized film capacitors to be tested, and determining a voltage bearing range of the metallized film capacitors; determining, according to a corresponding voltage of the metallized film capacitors when initial self-healing occurs and a residual voltage after the initial self-healing occurs, corresponding initial self-healing energy of metallized film capacitors when the initial self-healing occurs; establishing an initial self-healing voltage-energy database according to an initial self-healing voltage of the samples when the initial self-healing occurs and the corresponding initial self-healing energy when the initial self-healing occurs; and classifying the metallized film capacitors by combining an initial self-healing recovery condition and the subsequent service life and performance data of the metallized film capacitors.

The utility model relates to the technical field of transformers, in particular to an indoor melting type special voltage transformer. According to the technical scheme, the device comprises a frame, and one side of the frame is fixedly provided with a grounding terminal; the oil tank is fixedly clamped between the frames, an intermediate transformer and a compensation reactor are fixedly mounted on the inner bottom surface of the oil tank, and a damper is arranged at the upper end of the compensation reactor; the liquid measuring assembly is arranged in the oil tank and is used for monitoring the insulating oil; the porcelain bushing is fixedly arranged on the upper surface of the oil tank, a high-voltage capacitor and a low-voltage capacitor are fixedly arranged in the porcelain bushing, the high-voltage capacitor is electrically connected with the low-voltage capacitor, a wiring terminal is fixedly arranged at the upper end of the porcelain bushing, and the wiring terminal is electrically connected with one end of the high-voltage capacitor. The liquid level of the insulating oil can be monitored in real time, liquid leakage is avoided, it is ensured that the voltage transformer is always in a good working state, equipment faults are reduced, and the reliability of a whole electric power system is improved.

A vehicle mounted electrical circuit, wherein a parallel charging start processing includes a process of discharging a high-voltage capacitor via an inverter circuit and a three-phase motor in a state in which a connection switching circuit is controlled to stop voltage application from a serial circuit of a first battery and a second battery to the high-voltage capacitor, a process of charging the high-voltage capacitor by applying an output voltage of the first battery to the high-voltage capacitor, and a process of charging the first battery and the second battery in parallel by controlling a connection switching circuit such that a first battery is connected between the high-potential wiring and the low-potential wiring, a second battery between the neutral point and the low-potential wiring is connected, and a charging voltage generated by electric power supplied from an external charging facility is applied between the high-potential wiring and the low-potential wiring.

The utility model discloses an intermittent charging circuit of a high-voltage capacitor. The intermittent charging circuit comprises a first filter rectifier module, a first switch module, a power management module, a transformer, a switch tube Q2 and an output module, the first output end of the first filtering and rectifying module, the first switch module and the power management module are electrically connected with the grid electrode of the switch tube Q2 in sequence, the first end of a primary coil of the transformer is electrically connected with the second output end of the first filtering and rectifying module, and the second end of the primary coil of the transformer is electrically connected with the drain electrode of the switch tube Q2. The output end of the transformer is electrically connected with the output module, and the source electrode of the switch tube Q2 is grounded; the first switch module is used for controlling on and off of power supply of the power management module; the power management module is used for converting the direct current output by the second output end of the first filtering and rectifying module into alternating voltage; the power supply control module is switched on and switched off through the first switch module, so that the power supply control module is converted between a normal working state and a working stopping state in unit time, intermittent high-voltage output is further realized, the output time is short, the impact on the high-voltage capacitor is relatively small, and the high-voltage capacitor is not damaged. Therefore, the intermittent and low-impact-current charging requirements are met.

This invention discloses a hot air circulating oven for the production of high-voltage capacitors in microwave ovens, relating to the field of capacitor processing technology. The invention includes a base plate, which comprises a protective structure fixedly connected to its upper surface. Condensation structures are fixedly connected to both sides of the inner cavity of the protective structure. A water-pumping structure is symmetrically arranged on the lower end of the inner cavity of the protective structure. The upper part of the ends of the two water-pumping structures that are far apart from each other is fixedly connected to the condensation structure. Through the flow structure on the condensation structure, condensate is blocked and stored during use. Furthermore, a one-way permeation membrane ensures that water flow between the placement structure and the base plate is unidirectional, facilitating the placement and removal of capacitors within the protective frame. Simultaneously, the presence of the protective frame and door panel protects internal components during the drying process, preventing moisture accumulation that could affect the drying effect. It also effectively treats the moisture generated during drying, maintaining a relatively dry internal environment.

The multilayer ceramic high-voltage capacitor comprises end electrodes and a ceramic body, the inner sides of the two end electrodes are attached to the left side and the right side of the ceramic body respectively, the inner wall of the ceramic body is connected with a capacitor structure, the outer walls of the end electrodes are connected with a reinforcing structure, and the bottoms of the outer sides of the two end electrodes are fixedly connected with bases respectively. A screw rod penetrates through two square plates from back to front, the rear portion of the outer wall of the screw rod is attached to the rear square plate, then a lantern ring is in threaded connection with the front portion of the outer wall of the screw rod till the rear portion of the outer wall of the lantern ring abuts against the front face of the front square plate, at the moment, tightening force towards the inner side is formed by the square plates, and then the square plates drive the square frame to retract towards the inner side. The pressing force is formed on the outer side of the joint of the square frame, so that the connection stability of the terminal electrode and the ceramic body is improved, the service life of the ceramic high-voltage capacitor is ensured, and the normal use of the ceramic high-voltage capacitor is ensured.

The application discloses a daisy chain communication structure and a communication method. The communication structure comprises a conversion module and a daisy chain. The conversion module is connected with an MCU. The daisy chain comprises a plurality of devices connected in sequence. The device arranged at one end is connected with the conversion module, and the device arranged at the other end is defined as a top device. DUART communication is adopted between every two adjacent devices. The MCU is used for receiving external instructions and transmitting the instructions to the conversion module. The daisy chain device of the application is provided with a built-in DUART communication interface protocol. Only two communication interfaces are needed at the top and bottom, half-duplex bidirectional setting and communication protocol support are realized, the top device is set to support bidirectional differential DUART, and the differential DUART in the voltage mode supports low-cost high-voltage capacitor isolation, improves communication efficiency, and makes power consumption more balanced.

The utility model discloses a circuit board circuit adjusting module, which comprises a circuit board, a wiring port, a radiating fin, an electric control silicon wafer, a clamping type radiating fin, a high-voltage capacitor, a fuse, an adjusting knob and a mistaken touch prevention locking block, the wiring port is arranged on the side end face of the circuit board, and the electric control silicon wafer, the high-voltage capacitor and the fuse are arranged in a circuit board body. The electronic control silicon wafer is installed in a clamping mode through the cooling fins and the clamping type cooling fins, the independent module of the adjusting knob and the circuit board are installed in a positioning mode, and the mistaken touch prevention locking block is fixedly installed on one side of the adjusting knob through a screw, and the circuit adjusting module of the circuit board is suitable for efficient cooling of electronic components and parts and mistaken touch prevention design of the adjusting knob. The electronic control silicon wafer is clamped and installed through the cooling fins and the clamping type cooling fins, the cooling silicone grease layer, the center heat conduction copper plate and the front cooling fins are matched with the cooling fins to achieve double-face efficient cooling, the tightening bolts are screwed to drive the clamping blocks to move after the adjusting knobs are adjusted, and the adjusting knobs are extruded and fixed through the anti-skid rubber cushion blocks to prevent the knobs from being touched by mistake.

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 defibrillator of the present disclosure includes a H-bridge type biphasic pulse generation circuit connected to the rear stage side of a high-voltage capacitor. The biphasic pulse generation circuit includes a first switch, a second switch connected in parallel to the first switch, a third switch connected in series and to the rear stage side of the first switch, and a fourth switch connected in series and to the rear stage side of the second switch. The biphasic pulse generation circuit outputs a biphasic pulse from a first output line connected to a connection intermediate point between the first and third switches and from a second output line connected to a connection intermediate point between the second and fourth switches. In at least one of the first switch to the fourth switch, a plurality of thyristors are connected in series, and a resistor is connected in parallel to each thyristor.

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 relates to the technical field of electrode devices, in particular to a high-voltage capacitor extraction electrode device, which comprises two electrode plates, two electrode columns and a capacitor base body, the outer surfaces of the two electrode columns are fixedly connected to the interiors of one ends of the corresponding electrode plates, and the capacitor base body is fixedly connected to the outer surfaces of the two electrode columns. The outer surfaces of the other ends of the two electrode plates are fixedly connected to the upper side and the lower side of the capacitor base body respectively. The outer diameter of the two electrode plates is d1, the outer diameter of the capacitor base body is d2, and 2d1 is smaller than or equal to d2. The thickness of the electrode plate is 0.5 mm, when the material is thin, the distribution of electric field intensity and electric displacement is uniform, the electric field intensity and the electric displacement are not easily concentrated in a local area, the situation of uneven distribution of the electric field intensity is avoided, meanwhile, d1 is larger than or equal to 40mm and smaller than or equal to 60mm, the surface area of the electrode plate is increased, and the effect of improving the heat dissipation efficiency is facilitated.

The application discloses a calculation model of noise of a dry capacitor with a circular element structure at different temperatures and belongs to the technical field of dry high-voltage capacitor noise calculation. The calculation model comprises the following steps: S1, establishing a model of the influence of temperature on element and core noise; and S2, establishing a model of the influence of temperature on capacitor noise. The model of the influence of temperature on capacitor noise is further obtained by the model of the influence of temperature on element and core noise.

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 invention discloses a capacitor aging method, device and system and electronic equipment, and belongs to the field of capacitor aging. The capacitor aging method is applied to a non-polar electrolytic capacitor, and when the working voltage of the capacitor is higher than a first preset voltage, the number of boosting stages and the aging voltage of each boosting stage are determined based on the working voltage; the capacitor is then aged based on the number of boost stages and the aging voltage. When the capacitor is a medium-high voltage capacitor, multi-stage boosting is adopted for aging, so that the condition of failure of the capacitor caused by excessive heat in the capacitor due to excessive rise of aging voltage of the capacitor during aging is avoided, the medium-high voltage capacitor can be aged, and the quality of the medium-high voltage capacitor is improved.

The invention relates to a novel high-voltage safe explosion-proof capacitor shell and a preparation method thereof. The novel high-voltage safe explosion-proof capacitor shell is characterized by comprising an aluminum base layer and a film layer, a cavity for accommodating a capacitor core bag is arranged in the shell, and an opening is formed in one end of the cavity; the surface of the outer side of the aluminum base layer is covered with a film layer; and the film layer and the surface of the aluminum base layer are combined into a whole to form a shell for packaging the capacitor. The molten liquid PET coating is hot-pressed on the surface of the aluminum base layer to form the film layer to the film-coated shell, so that the problem of poor explosion-proof performance caused by an explosion-proof structure arranged in a traditional solid film-coated aluminum shell is solved. In addition, the shell can be applied to a high-voltage aluminum electrolytic capacitor larger than 400 V, and the problem that a surface film layer of the shell is prone to falling off or being damaged when a traditional solid film pasting or film sleeving aluminum shell is applied to the high-voltage capacitor is solved. The aluminum electrolytic capacitor packaged by the shell is suitable for the fields of AI servers, new energy automobiles, photovoltaic energy storage, communication equipment, artificial intelligence and the like, and has wide application requirements.

Sensored insulation plug (1) for being inserted into a separable connector in a power distribution network comprises a plug body (140) formed by a solidified insulating material (610), and a primary capacitor (150), operable as a high-voltage capacitor in a voltage divider for sensing the elevated voltage. The primary capacitor includes a high-voltage electrode (160) for direct electrical connection to the elevated voltage. A sensing electrode (170) of a tubular shape, embedded in the plug body (140), arranged around the high-voltage electrode, comprises a deformable mesh of conductive wires forming a plurality of apertures between the wires to allow portions of the insulating material (610) on opposite sides of the mesh to be mechanically connected with each other by insulating material in the apertures while the insulating material solidifies and thereafter. A dielectric formed by a portion (180) of the insulating material (610) is arranged between the sensing electrode (170) and the high-voltage electrode (160).