1481results about "Switchgear arrangements" patented technology

The invention relates to the technical field of power monitoring, in particular to a moisture-proof environment-friendly ring main unit online monitoring system with continuous fault indication and a ring main unit, and the system comprises an electric parameter dynamic analysis module, an environment collaborative verification module, a closed-loop control execution module and a behavior path optimization module. According to the method, the current fluctuation and the power difference value are matched through dynamic time warping, the temperature rise rate and the condensation index are calculated through linear regression, multi-dimensional verification is formed through fuzzy logic judgment, operation parameters are adjusted in real time through PID control, strategy weight is optimized through a genetic algorithm, feature extraction is reversely corrected, and the fault recognition precision and the response speed are improved; closed-loop feedback is established to continuously optimize the system state, environment and electrical parameter coupling analysis is enhanced, the misjudgment probability of a single threshold value is reduced, parameters are dynamically corrected, the adjustment real-time performance and accuracy are improved, the adaptive capacity under the complex working condition is enhanced, a complete closed loop of collection, analysis and feedback is established, and the insulation degradation judgment reliability is improved.

The invention discloses an intelligent response method for an arc fault of a high-altitude switch cabinet, relates to the technical field of safety protection of power equipment in a high-altitude area, and aims to solve the problems that the arc time of the arc fault is prolonged, the pressure in the cabinet is sharply increased, a traditional disposable pressure relief device cannot be reset and is lack of insulation state evaluation, and the reliability is poor. The invention aims to provide a response method which combines optical signal and pressure double-criterion detection, resettable pressure relief, gas component analysis and intelligent decision so as to improve the safety and reliability of the switch cabinet.

The invention discloses a side-mounted vacuum circuit breaker ring main unit, which relates to the technical field of ring main units, and comprises a multi-source sensing module used for collecting and converting state parameters from equipment in the ring main unit and the environment of the ring main unit; the state fusion processing module is used for configuring rules according to a set sampling period and a threshold value; the intelligent auxiliary identification module is used for establishing a mapping relation between the multi-dimensional state parameters and the potential risk factors; the digital twin modeling module is used for constructing a virtual simulation model consistent with the ring main unit; the authority control and interlocking judgment module is used for fusing the state vector, the risk index value and the operator instruction parameter according to a preset authority strategy rule; the closed-loop control module comprises a control logic unit and a simulation verification unit and is configured to respond to the state event trigger signal, call a control instruction generation mechanism and call a virtual model to perform forward deduction on a control effect; according to the invention, the stability of equipment operation and the intrinsic safety level of operation are greatly improved.

The invention relates to the technical field of ring main units, and provides a self-adaptive protection device for a ring main unit, which comprises a cabinet body, a gas tank mounted on the back of the cabinet body and filled with environment-friendly insulating gas, and a pressure relief pipe with one end communicated with the top of the gas tank and used for pressure relief of the gas tank, the top of the gas tank is provided with a pressure relief regulation and control assembly, and the top of the pressure relief regulation and control assembly is provided with a dustproof assembly. The pressure relief regulation and control assembly comprises a funnel-shaped main speed discharging barrel arranged at the top of the air box and a butt joint sleeve for connecting the main speed discharging barrel with the pressure relief pipe in a sealed mode. During use, the main pressure relief channel and the branch slow-heating pressure relief channels are utilized and respond to instantaneous high-pressure impact and continuous hot pressing respectively, so that deformation and damage of the gas tank caused by instantaneous arcing overpressure are effectively prevented, and the potential safety hazard that pressure accumulation caused by abnormal slow temperature rise cannot be released in time is eliminated; and self-adaptive protection of the ring main unit gas tank is realized.

A compression sealing gasket and a sealing system of a gas-insulated portion of a voltage apparatus. The sealing system includes two components fastened together, wherein each component includes an assembly face, and a compression sealing gasket that is arranged axially between the assembly faces. The compression sealing gasket includes a ring-shaped main body having a main axis. The main body has a generally flat planar configuration that extends perpendicular to the main axis and includes an outer side, an inner side, and end faces which delimit the main body along the main axis and connect the sides. The gasket further includes a lip projecting upwards in axial direction parallel to the main axis. The lip is arranged in a distance to both sides and engages a ring-shaped fixation groove formed in an assembly face. The fixation groove receives the lip of the gasket with slight compression.

Aspects of the disclosure relates to tooling for molding a polymer housing for a vacuum bottle. The tooling comprises first and second mold halves, each defining one-half of a negative impression of the housing. The housing includes a cylindrical core with multiple spaced annular sheds extending outward, arranged as alternating large- and small-diameter sheds. The polymer housing encapsulates at least 70% of a rigid cylinder having two flanges separated by a narrower central body. Each mold cavity includes cylindrical end cavities with diameters larger than a central core cavity diameter, corresponding to the housing's core geometry. This arrangement enables accurate formation of the alternating shed structure, precise encapsulation of the rigid cylinder, and reliable dimensional control at the core and ends, facilitating robust vacuum bottle construction.

The present invention relates to the field of ring network box technology, and discloses an intelligent primary and secondary fusion ring network box, comprising an outer box and multiple inner boxes arranged in the outer box, the outer box's top cover, box side walls, box bottom tray and box back wall are all hollow structures, multiple exhaust fans are arranged on the inner plate of the box top cover, each exhaust fan is located above the corresponding inner box top air outlet, the cavity in the box top cover is divided into multiple separate upper ventilation cavities by multiple upper partition plates, each exhaust fan is connected upward to a different ventilation cavity, the cavity in the box back wall is divided into multiple separate rear ventilation cavities by a rear partition plate, the rear ventilation cavity in each box back wall is connected to the corresponding upper ventilation cavity in the box top cover to form a separate ventilation cavity, and a gas detection device is respectively arranged in each ventilation cavity. It has a block-type ventilation and heat dissipation system and a block-type detection system, has good waterproof, moisture-proof, anti-collision and anti-leakage effects, and optimizes the wiring layout.

To provide a modular system for appropriately generating hydrogen, and a method of operating the same.SOLUTION: A modular system for hydrogen generation includes a plurality of cores and a hub. Each core includes an electrolyzer and a power feeder. The power feeder is operable to manage the electric power to the electrolyzer of the core and is redundant to the power feeder of at least the other one of the plurality of cores. The hub includes a water module, a heat exchange module, and a switchgear module. The water module includes a water source in fluid communication with the electrolyzer of each one of the plurality of cores, the heat exchange module includes a heat exchanger in thermal communication with the electrolyzer of each one of the plurality of cores, and the switchgear module includes a switch activatable to electrically isolate the power feeder of each one of the plurality of cores.SELECTED DRAWING: Figure 1A

The invention belongs to the field of switch state indicating devices, and particularly provides a circuit breaker opening and closing indicating structure, a circuit breaker and a switch cabinet. According to the indicating structure, the limiting hole is formed in the mechanism box body, the stroke of the opening and closing indicating piece is limited through the limiting hole, and the opening and closing indicating piece is limited at the correct indicating position. Meanwhile, the elastic piece is connected to the driving mechanism for driving the opening and closing indicating piece to swing, the stroke of the output shaft of the circuit breaker is compensated through deformation of the elastic piece, and normal opening and closing of the circuit breaker are guaranteed. The circuit breaker comprises the indication structure. The switch cabinet comprises the circuit breaker.

The modular fully enclosed insulated switchgear provided in this application relates to the field of electrical switchgear. The modular fully enclosed insulated switchgear comprises: a main air chamber module, an operating mechanism module, a plug-in solid insulated busbar module, a three-position disconnector, a metal box, a transmission device and a solid insulated inner cone plug interface; wherein, the plug-in solid insulated busbar module comprises a plurality of fully solid insulated U-shaped conductors, both ends of the U-shaped conductor are provided with solid insulated outer cone plug connectors, the solid insulated outer cone plug connector at one end of the U-shaped conductor is used to connect to the solid insulated inner cone plug interface of the modular fully enclosed insulated switchgear, and the solid insulated outer cone plug connector at the other end is used to connect to the solid insulated inner cone plug interface of the adjacent modular fully enclosed insulated switchgear. It is used to solve the technical problems in the prior art that the switchgear is difficult to install and disassemble independently, is not conducive to transportation and installation in a small space, and is particularly difficult to maintain due to faults.

The invention belongs to the technical field of sealing materials, and particularly relates to a rubber composite sealing material and a liquid phase preparation method and application thereof. According to the liquid-phase preparation method of the rubber composite sealing material, provided by the invention, based on deep understanding of a liquid-phase synthesis process of first liquid-phase pre-dispersion and then condensation, a modified carbon black dispersion liquid, a modification auxiliary agent and a modified synthetic rubber latex dispersion liquid are prepared, so that carbon black and the auxiliary agent can be promoted to be uniformly and stably dispersed in a synthetic rubber system; the dispersion uniformity of the carbon black and the auxiliary agent is improved, so that the vulcanized rubber composite sealing material is not easy to have insufficient or excessive local crosslinking or structural defects, thereby improving the mechanical property, air tightness and cold resistance of the rubber composite sealing material, and being a high-performance rubber composite material; the technical problem that a high-performance rubber material is difficult to prepare by an existing preparation method is solved.

The invention discloses an arc fault isolation structure and a distribution box and method capable of realizing fault pressure relief, and relates to the technical field of distribution boxes. The power distribution box comprises a power distribution box body, heat dissipation openings are formed in the two ends of the power distribution box body, heat dissipation grids used for ventilation are fixed in the two heat dissipation openings, and an arc fault detector used for detecting arc faults is arranged in the power distribution box body; the inner walls of the two sides in the power distribution box body are fixedly welded with concentric-square-shaped limiting frames, sealing baffles are arranged in the two concentric-square-shaped limiting frames in a sliding mode, the two sealing baffles are used for sealing the two heat dissipation openings to isolate the power distribution box body, a fixing plate is fixed in the power distribution box body, and a set of positioning assemblies are arranged in the fixing plate. The positioning assembly limits the two sealing baffles to guarantee communication of the two heat dissipation openings. According to the invention, rapid sealing isolation of the distribution box is realized, and diffusion and harm of arc faults are effectively prevented.

The invention belongs to the field of power equipment, and particularly relates to a primary and secondary fusion complete ring main unit which comprises an outer box body, a base is arranged at the bottom of the outer box body, separation frames are installed on the base at intervals, switching cabinets are installed on the upper portions of the separation frames, ring main units are arranged between the adjacent switching cabinets, and power distribution modules for power distribution are arranged in the ring main units. A bypass is automatically constructed before overhaul, so that current bypasses the cabinet body to be overhauled, uninterrupted power supply for downstream users is ensured, planned power failure influence is reduced to zero, power supply reliability and user satisfaction are greatly improved, connection and disconnection of power supply channels between adjacent ring main units can be quickly performed through the power connection mechanism, and the power supply efficiency is improved. The switching mechanism is matched with the switching frame, so that a bypass power supply path can be constructed, current bypasses the ring main unit to be overhauled, it is guaranteed that downstream users are not powered off in the whole process, and only a single cabinet needs to be isolated and overhauled.

The invention discloses a 10KV sulfur hexafluoride switch cabinet which comprises a cabinet body, a gas box is arranged in the cabinet body, a mechanism chamber is arranged on the gas box, an electric control chamber is arranged on the mechanism chamber, an operating mechanism is arranged in the mechanism chamber, a three-phase high-voltage switch assembly is arranged in the gas box, and the three-phase high-voltage switch assembly is connected with the operating mechanism. A wire inlet sleeve and a wire outlet sleeve which are matched with each phase of high-voltage switch assembly are arranged on the gas box, the wire inlet sleeve is arranged on the gas box in an inverted mode, a first cylindrical contact is fixedly arranged in the wire inlet sleeve in a sleeved mode, copper-tungsten alloy of a spiral structure is embedded in the inner circumferential wall of the first cylindrical contact, a copper wire inlet rod is vertically inserted in the first cylindrical contact, and a wire outlet rod is arranged on the wire inlet sleeve. A heat dissipation box is arranged at the upper end of the gas box, a pressure relief device is arranged at the upper end of the heat dissipation box, the heat dissipation box and the gas box are internally communicated to form a closed cavity, the closed cavity is filled with sulfur hexafluoride gas, an inflation and measurement integrated pressure gauge is mounted on the gas box, and heat dissipation fins are paved on the outer surfaces of the gas box and the heat dissipation box. The heating value can be reduced, efficient heat dissipation is achieved, and the reliability of the switch cabinet is improved.

Provided in the present disclosure is a ring main unit (500). The ring main unit (500) comprises a gas tank (100), a fixed frame (1) fixed to an inner side wall of the gas tank, and a circuit breaker switch (2) and a three-position switch (3) that are located in the gas tank (100). Embedded poles (21) of the circuit breaker switch (2) each comprise a pole body (211), and a moving-end shielding seat (212) and a fixed-end shielding seat (213) that are located at two ends of the pole body (211), wherein the moving-end shielding seat (212) and the fixed-end shielding seat (213) can respectively cover the two ends of the pole body (211), thereby electrically isolating an electrical connection position of the pole body (211) from the external environment. The pole body (211), the moving-end shielding seat (212) and the fixed-end shielding seat (213) are cast into a whole by means of an insulating resin, thereby improving the consistency of the poles. A grounding shielding seat (33) is made of an integrally formed metal member, such that a plurality of grounding contacts (32) can be uniformly enclosed within a shielding space (301), thereby optimizing the electric field distribution of the grounding contacts. The ring main unit (500) disclosed in the present application can not only use dry air as an insulating gas, but also achieves the miniaturization of the ring main unit (500) and satisfies the corresponding insulation performance.

A novel inclined sleeve structure for a 126kV GIS is characterized in that the upper part of a transition tank body is provided with three flange ports, each flange port is provided with an insulating sleeve, and the installation angle of the three insulating sleeves and the vertical direction form an angle of 30 degrees or 60 degrees; three conductors are arranged in the transition tank body, each conductor is formed by integrally casting a contact and a bent rod conductor, the three conductors are respectively arranged along the axes of the three flange ports, and a guide piece is arranged at the upper end of each conductor; a conducting rod is arranged in the insulating sleeve, one end of the conducting rod is installed in a contact of the conductor through a guide piece in the axis direction of the insulating sleeve, and the other end of the conducting rod is fixedly installed on a conducting end cover at the end of the insulating sleeve through a disc spring and a bolt. Through the structure, the utility model provides the novel inclined sleeve structure for the 126kV GIS, which can reduce the equipment size, reduce the equipment cost and reduce the manufacturing cost of a transformer substation.

The utility model discloses a mechanical lock interlocking system for a grounding switch of a gas insulated switchgear, which belongs to the technical field of insulated switches and comprises a circuit breaker operating mechanism and a three-position operating mechanism which are mounted in a mechanism compartment. The grounding interlocking device is arranged between the low-voltage compartment and the high-voltage compartment in a penetrating manner below the mechanism compartment; wherein the three-station operating mechanism, the circuit breaker operating mechanism and the grounding interlocking device are sequentially distributed from top to bottom, and every two of the three-station operating mechanism, the circuit breaker operating mechanism and the grounding interlocking device are mechanically linked; the circuit breaker operating mechanism and the three-station operating mechanism are respectively connected with the circuit breaker and the three-station isolating switch in the inflatable compartment; a rear lower door plate is installed behind the high-voltage compartment cabinet, and the grounding interlocking device is connected with the rear lower door plate. Operation and maintenance personnel must operate in sequence when wanting to open the rear lower door plate of the high-voltage compartment; by adopting the mechanical interlocking, programmed step operation of an operator can be ensured, the reliability is higher, and the personal safety of the operation and maintenance personnel can be further ensured.

The uninterruptible power supply cabinet includes a cabinet body, a switch component, and a power cabinet. The cabinet body is provided with an external port and a first power connection end, and the external port is configured to connect to an external device. The switch component is disposed in the cabinet body, one end of the switch component is electrically connected to the external port, and another end of the switch component is electrically connected to the first power connection end. The power cabinet is disposed in the cabinet body, and the power cabinet includes a first frame and at least one power module. The first frame includes a second power connection end, and the second power connection end is configured to detachably and electrically connect to the first power connection end.

The invention belongs to the technical field of looped network boxes, and particularly relates to an environment-friendly gas insulated looped network box which comprises a supporting mechanism, environment-friendly gas insulated looped network box assemblies are installed on the upper surface of the supporting mechanism in a path array mode, and heat dissipation and fire extinguishing mechanisms are arranged on the two sides of the surfaces of the environment-friendly gas insulated looped network box assemblies. A cooling mechanism is installed on one side of the environment-friendly gas insulation ring main unit assembly. Through cooperation of the structure, when the temperature of the environment-friendly gas insulation ring main unit assembly is higher than a threshold value, the driving motor is started, so that the overturning plate rotates, and other environment-friendly gas insulation ring main unit assemblies attached to the two sides of the environment-friendly gas insulation ring main unit assembly are pushed to move; the influence of the temperature of the environment-friendly gas insulation ring main unit assembly on other environment-friendly gas insulation ring main unit assemblies is avoided, the carbon dioxide and ammonium phosphate salt dry powder extinguishing agent is sprayed into the environment-friendly gas insulation ring main unit assembly through the spraying pipe, and fire extinguishing treatment is conducted on open fire in the environment-friendly gas insulation ring main unit assembly.

The invention discloses a switch cabinet using clean air as an insulating medium, and particularly relates to the technical field of electrical equipment, the switch cabinet using clean air as the insulating medium comprises a cabinet body, an air box, a fixed disc, a sealing spacer bush, a cylindrical sleeve, a clamping sleeve and a sealing ring; a contraction unit; the air supplementing unit is arranged in the air box and used for supplementing air into the air box when the clamping sleeve shrinks. According to the invention, the contraction unit triggers and drives the clamping sleeve to generate elastic contraction deformation, so that the hole wall of the cable penetrating hole clamps the sealing ring, the sealing ring and the surface of the cable are in closer contact, the leakage phenomenon of the cable and the cable hole is reduced, in addition, when the air pressure in the air box is reduced, the air supply unit acts, and then air can be supplied to the air box. The gas pressure in the gas tank is increased, so that the positive pressure state in the gas tank is maintained in a short time, the concentration of an insulating gas medium in the gas tank is improved, and the arc extinguishing of the gas tank is prevented from being greatly influenced.

The invention relates to the technical field of ring main units, and discloses a ring main unit of a sliding door structure, the ring main unit comprises a box body, a plurality of first box doors and a plurality of second box doors, the first box doors are slidably connected with locking pieces, the box body is provided with locking grooves for the locking pieces to be inserted, and the box body is provided with first sliding grooves and second sliding grooves. The first sliding grooves allow the first box doors to slide, the second sliding grooves allow the second box doors to slide, and locking magnets are arranged on the first box doors, so that the first box doors can abut against the adjacent first box doors through mutual attraction of the locking magnets, and the two adjacent first box doors can be fixed to each other; the situation that gaps exist between every two adjacent first box doors is reduced, the first box doors can stably shield the box body, and therefore the situation that workers forget to close the first box doors is reduced, the situation that every two adjacent first box doors are fixed through locking magnets, and the possibility that small animals slide the first box doors is reduced.

A system for monitoring a switchgear includes: an infrared camera for acquiring at least one infrared image of the switchgear; a processing unit for determining a pixel in the at least one infrared image associated with a hottest temperature, determining e pixels in the at least one infrared image associated with a temperature that is within a threshold temperature of the hottest temperature, and determining that a hot spot exists in the switchgear as a determination, the determination being a utilization of the determined pixels in the at least one infrared image; and an output unit for outputting an indication of a fault in the switchgear based on the determined hot spot.

The invention belongs to the technical field of switch equipment, and particularly relates to a supporting assembly for gas-insulated metal-enclosed switch equipment, which comprises a hexagonal sealing box, three circuit breakers are arranged in the sealing box, the three circuit breakers are respectively connected with three buses, and the three circuit breakers are respectively provided with a magnetic quenching mechanism. The upper end face of the sealing box communicates with an arc discharging channel, a gate plate driving mechanism is arranged in the arc discharging channel and comprises a sealing gate plate horizontally penetrating through the right wall of the arc discharging channel, and the sealing gate plate is in sealed sliding connection with the front inner wall and the rear inner wall of the arc discharging channel. The arc extinguishing device has the advantages that when an arcing fault occurs, arc extinguishing can be effectively carried out, an arc discharge channel can be rapidly opened, gas after arc extinguishing in the sealing box is rapidly discharged in cooperation with high-voltage and dry air, box body explosion accidents are effectively avoided, and the equipment safety is improved.

A pre-assembled switchboard has a housing having a plurality of bus bars and a cable entrance for a plurality of sub-circuit cables and a sub-circuit termination block with conductor coupling elements configured for connection to the conductors of a plurality of sub-circuit cables. Circuit protection devices are connected between the bus bars and the sub-circuit termination block, and the conductor coupling elements being grouped by sub-circuit so that the conductors for each sub-circuit cable can be terminated adjacent to each other.

The invention relates to the technical field of ring main units, in particular to a sound-light alarm system for preventing misoperation of an all-insulation inflatable ring main unit. Comprising a multi-mode sensing module; an intelligent decision module; a sound-light alarm module; and a mechanical interlocking module. The sound-light-touch three-mode collaborative warning strategy is innovated, and the warning signal identification degree in a complex environment is enhanced through synchronous activation of directional sound waves, double-color stroboscopic light and vibration feedback; by combining dynamic audio adjustment, spectrum adaptive illumination and an operation behavior self-learning algorithm, intelligent dynamic adjustment of a warning strategy is realized, misjudgment of manual operation is effectively reduced, and an efficient risk intervention mechanism covering multiple senses is constructed; according to the invention, through a logic AND operation mechanism of high-voltage live detection and grounding knife switch position monitoring, a core high-risk scene that the power supply side is live and the grounding knife switch is closed is accurately captured, and the problem of missed judgment caused by single condition monitoring in the prior art is effectively solved.

The invention discloses an inflatable high-voltage switch cabinet with a phase control function, and relates to the technical field of high-voltage switch cabinets, the inflatable high-voltage switch cabinet comprises a switch cabinet body, the switch cabinet body comprises an operation room, a control room, a cable room, a recovery room and a switch room, the control room is connected to the top of the operation room, the cable room is connected to the bottom of the operation room, and the recovery room is connected to the bottom of the switch room. According to the application, the SF6 gas in the switch chamber can be directly and actively recycled into the storage tank through the storage tank in the recycling chamber when the SF6 gas leaks, so that the problem that the SF6 gas is not recycled when the SF6 gas leaks in the switch chamber of the high-voltage switch cabinet is solved, and the safety performance of the high-voltage switch cabinet is improved; the SF6 gas can be liquefied by compressing and then cooling the SF6 gas, so that the problem that the gaseous SF6 gas occupies more storage volume than the liquid SF6 gas when the SF6 gas is directly recovered is solved, the space occupation of the storage tank is reduced, and the recovery rate of the SF6 gas is improved.

A subsea power distribution assembly (1) comprising a distribution part (5) with a distribution arrangement (7), a plurality of collection terminals (9) and an export terminal (11) connected to subsea cables (39) with high-voltage dry-mate connectors (31, 131) It further comprises collection connectors (20) and export connectors (30), being high-voltage wet-mate connectors, that connect the collection terminals (9) and export terminal (11) to the distribution arrangement (7) with a jumperless connection.