271 results about "Disconnector" patented technology

This invention discloses a pole-type environmentally friendly gas-insulated switchgear, belonging to the field of switchgear. It includes a gas cabinet with a sealed environmentally friendly gas chamber inside. An isolating bracket and a pole-type bracket are both fixedly installed within the environmentally friendly gas chamber. A disconnecting switch is fixedly mounted on the isolating bracket, with its upper end electrically connected to an upper conductive terminal. A pole-type circuit breaker is fixedly mounted on the pole-type bracket, with its upper end electrically connected to the lower end of the disconnecting switch. The lower end of the pole-type circuit breaker is electrically connected to a lower conductive terminal. The upper conductive terminal is sealed on the upper part of the environmentally friendly gas chamber, and the lower conductive terminal is sealed on the lower part of the environmentally friendly gas chamber. Through the rational installation and structural improvements of the upper and lower conductive terminals, the disconnecting switch, the pole-type circuit breaker, the isolating bracket, and the pole-type bracket within the gas cabinet, the connections between these components are more compact, the environmentally friendly gas chamber is smaller, and leakage is less likely, effectively ensuring the safety of the entire device.

This invention discloses a method for determining the unloaded bus current and a busbar switching control method using the same method. The method for determining the unloaded bus current includes the following steps: A1. Installing current sensors on the porcelain bushings of the circuit breakers on the unloaded busbar side of each phase; A2. Connecting each current sensor to a multi-channel waveform recorder to obtain the maximum capacitive current of each phase unloaded busbar through the multi-channel waveform recorder; A3. Obtaining the maximum capacitive current value of the unloaded busbar. The busbar switching control method includes selecting the threshold value for operating the unloaded busbar with the disconnecting switch according to the rated voltage level of the busbar; and selecting the disconnecting switch or the circuit breaker on the unloaded busbar side to control the switching operation of the corresponding unloaded busbar according to the maximum capacitive current and the threshold value. This invention can flexibly adjust the threshold values ​​for operating the unloaded busbar with the current sensors and disconnecting switches according to the rated voltage level of the busbar, which has good engineering adaptability, is more in line with the actual situation on the engineering site, has good performance, and is easy to promote and use.

This invention relates to the field of insulation testing technology, specifically to a method and system for controlling insulation testing of GIS (Gas Insulation System). The method includes the following steps: acquiring the GIS under test and insulation test requirements, generating a target state queue; collecting the electrical feedback status of the GIS control cabinet to form a first criterion, collecting the actual mechanical positions of switches, disconnectors, and grounding switches to form a second criterion, and obtaining standard real-time state data through synchronous processing; constructing a GIS test state model based on the target state queue and the standard real-time state data, determining whether the current state is consistent with the target state, outputting a state adjustment command when inconsistent, and triggering a lightning impulse test, power frequency withstand voltage test, or partial discharge test when consistent and meeting the test permitting conditions; and switching to the next target state or resetting to the initial state after the test is completed. This invention improves the accuracy, efficiency, and safety of GIS insulation test state confirmation.

Circuits and methods that enable stacking of phase change material (PCM) switches and that accommodate variations in the resistance of the resistive heater(s) of such switches. Stacking is enabled by providing isolation switches for the resistive heater(s) in a PCM switch to reduce parasitic capacitance caused by the proximity of the resistive heater(s) to the PCM region of a PCM switch. Variations in the resistance of the resistive heater(s) of a PCM switch are mitigated or eliminated by sensing the actual resistance of the resistive heater(s) and then determining a suitable adjusted electrical pulse profile for the resistive heater(s) that generates a precise thermal pulse to the PCM region, thereby reliably achieving a desired switch state while extending the life of the resistive heater(s) and the phase-change material.

This utility model belongs to the field of electric disconnect switch technology, and in particular, it is an electric disconnect switch that is easy to maintain. It includes a base, a main shaft running through the inner wall of the base, and a driven gear fixedly connected to the outer wall of one end of the main shaft. A drive gear meshes with the outer wall of the driven gear, and a servo motor is mounted on the outer wall of one side of the drive gear. Equally spaced connecting rods are welded to the outer wall of one side of the main shaft, and a transmission rod is hinged to the outer wall of one side of the connecting rods. This utility model solves the operational difficulties when the electric drive fails by setting a fixed connection structure between the handle and the main shaft, improving the emergency response capability of the equipment. The first and second contacts are fixed to the base by the first and second insulators respectively, making disassembly and assembly convenient. Furthermore, the linkage design between the relay and the servo motor can monitor the motor's operating status in real time, avoiding overload damage, reducing maintenance difficulty and cost, and solving the problems of low maintenance efficiency and high maintenance costs of traditional equipment.

This invention relates to the field of disconnector switch testing technology, and in particular to a disconnector switch mechanical life testing device, comprising a frame, a drive assembly, a counting assembly, and an environmental maintenance assembly. The frame is fixed to the ground and has at least one test station, on which the disconnector switch to be tested is fixedly installed. The drive assembly includes a drive module mounted on the frame, which is drivenly connected to a reversing module mounted on the frame. The reversing module is drivenly connected to a reciprocating test rod, which drives the moving contact of the disconnector switch to open and close repeatedly. The counting assembly is fixedly mounted on the frame and correspondingly positioned to the moving contact, used to count the number of times the moving contact has opened and closed. The environmental maintenance assembly is mounted on the frame and used to maintain the stability of the test environment. This invention has a compact structure and flexible operation, achieving efficient, automatic, stable, and environmentally controllable mechanical life testing of disconnectors through high structural integration.

The application belongs to the technical field of disconnectors, and discloses a live-line interlocking driving assembly with power-off guiding safety and watchdog reset mechanism, which comprises an aluminum base, two ends of the aluminum base distributed along the length direction are respectively connected with a static contact assembly and a fixed part, a movable contact assembly is rotatably arranged at the end of the fixed part away from the aluminum base, and the movable contact assembly can contact the static contact assembly, a driving assembly is connected on one end of the aluminum base along the width direction, the in-place state of the butt joint electric terminal is detected through a trigger plate, and the driving assembly is interlocked controlled in combination with the displacement, temperature rise and electromagnetic interference parameters collected by a stroke switch, a motor shaft position state and a multi-parameter sensor module, so that the out-of-contact, abnormal stroke or abnormal interference situation can be found in time during the opening and closing process, and the safety and reliability of the operation of the live-line interlocking driving assembly are improved.

The application relates to the technical field of electrical connection, in particular to a wiring module and an electrical isolation switch, which comprises a module main body, a common conductive assembly and first and second wiring terminals arranged on the two sides of the module main body respectively. The first wiring terminal comprises an elastic assembly which can press the first external conductor against the common conductive assembly to form an electrical connection. The structure of the second wiring terminal can be combined with that of the first wiring terminal in multiple ways according to actual requirements. The application adopts the elastic assembly for wiring on at least one side, thereby simplifying the wiring operation and improving the installation efficiency. Meanwhile, the continuous pressing force provided by the elastic assembly helps to improve the long-term reliability of the connection. The modular different terminal combinations enhance the application flexibility and market compatibility of the product.

This application discloses a visual laser composite monitoring method and system for disconnector switch contacts, relating to the field of power system monitoring technology. The method includes: establishing a corresponding reference database based on the target disconnector switch; acquiring real-time image information, real-time laser ranging information, and real-time control information of the target disconnector switch after completing the closing action, and analyzing these to determine if the switch is in place, obtaining closing determination information; and issuing a closing warning result based on the closing determination information. This application addresses the problem that existing disconnector switch position monitoring relies on external indicators and cannot intuitively and accurately determine the insertion depth of internal contacts. By combining visualization and laser ranging principles, it solves the difficulties of existing methods in determining whether the switch is in place and quantifying the insertion depth, aiming to fundamentally avoid power safety accidents caused by incomplete closing.

This invention discloses a high-current DC disconnect switch, relating to the field of power electronics technology. It includes: a conductive housing with multiple parallel-connected knife switch moving contacts on both sides of the outer surface; multiple connecting rods, each hinged at its large and small ends to the multiple knife switch moving contacts on both sides of the conductive housing; and an operating mechanism assembly, the output end of which is hinged to the connecting rod body, used to drive the connecting rods to swing and synchronously rotate the knife switch moving contacts, causing them to contact or move away from the conductive housing. When the knife switch moving contacts contact the conductive housing, the disconnect switch is on; when the knife switch moving contacts move away from the conductive housing, the disconnect switch is off. This invention achieves synchronous and precise driving of multiple moving contacts, ensuring reliable contact between the moving contacts and the housing frame.

This invention relates to the field of disconnector switch clamp connection technology and aims to solve the problem of poor installation adaptability of existing disconnector switch clamps due to varying equipment spacing. It includes a support assembly and a slide rail assembly. The support assembly comprises a slider mounting plate, a first support column, and a back plate. The slider mounting plate is fixedly connected to a first end of the first support column, and the back plate is disposed at a second end of the first support column. The slide rail assembly includes a second support column and a clamp, with the clamp disposed at the end of the first end of the second support column. The slider mounting plate is slidably connected to the second support column, and a slider locking element is provided between them. This invention adopts a modular structure, including the support assembly and the slide rail assembly, with a modular overall design that provides better adaptability to different structural components. Assembly between the support assembly and the slide rail assembly is convenient, and the position of the support assembly relative to the slide rail assembly can be adjusted to meet the needs of installation at different equipment spacings.

This invention relates to a dedicated branch box for AC charging piles and its power supply control method. The box includes a housing, a main power supply circuit within the box, a branch distribution circuit electrically connected to the main power supply circuit, and multiple outgoing line units. The main power supply circuit includes a horizontal main busbar arranged horizontally within the box, an incoming line interface at one end of the horizontal main busbar, an expansion interface at the opposite end, and a main disconnect switch between the incoming line interface and the horizontal main busbar. The incoming line interface and the expansion interface are fixedly connected to the horizontal main busbar, and the expansion interface is used to connect to the main power supply circuit of another branch box of the same type via a cable. The branch distribution circuit is located on one side of the horizontal main busbar and electrically connected to it. Multiple outgoing line units are spaced apart along the length of the branch distribution circuit. Each outgoing line unit includes a circuit breaker installed on the branch distribution circuit and an outgoing line interface electrically connected to the circuit breaker. The outgoing line interface is located at the bottom of the box. This invention improves power distribution safety.

The application relates to a high-frequency plasma power supply, which realizes high-level response of the high-frequency plasma power supply through a voltage response board with a model of XILINX-AEC100 vehicle-level FPGA. Since the voltage applied in the high-frequency plasma power supply is higher than 400 volts, the voltage response board with the model of XILINX-AEC100 vehicle-level FPGA can realize normal work in a high-voltage environment. An isolating switch gives the voltage response board an operation action of an operator in the form of a level signal through an isolating effect, and in order to reduce the influence of voltage mutation of a voltage booster, a power selector can pre-set output electric energy power of the voltage response board. A power delay device fits large impedance between the voltage booster and a high-frequency electrotome, so as to prevent mutation of output electric power, and further improves the accuracy of the high-frequency plasma power supply in regulating electric energy supply.

The charging system provides a complete disconnection of the battery and the voltage converter located within the voltage conversion unit from the supply terminals using three disconnectors. [Solution] The charging system for the battery of an electric vehicle comprises a voltage conversion unit 3 and a storage unit 4, the storage unit supplying electrical energy via two supply terminals 44 and 45. The battery 48 of the storage unit has two terminals 481 and 482 and is disconnectably connected to the supply terminals via second and third disconnectors 46 and 47. The voltage conversion unit is connected to the storage unit via three terminals 31, 32 and 33, two of the three terminals 32 and 33 within the storage unit are connected to two terminals of the battery. The third terminal 31 of the three terminals is connected to the first terminal 41 of the storage unit and is connected to the first disconnector 36 within the voltage conversion unit.

The application belongs to the technical field of switches, and particularly relates to a circuit breaker or disconnector, which increases a backflow channel structure on the side wall of an arc extinguishing chamber, after the circuit breaker or disconnector arcs, the arc moves upwards, the pressure above the arc extinguishing chamber increases, the pressure in the middle region of the moving and static contacts below the arc decreases, the backflow channel is used to supplement the gas in the space behind the arc with the cold gas above, the arc is inhibited from falling back, and the arc extinguishing performance of the product is improved.

The utility model relates to the field of electric power overhauls tool, especially a power supply box, the power supply box includes box, and sets up the patch panel, power supply unit and the power cable on the box, is equipped with multiple output circuits on the patch panel, and each output circuit includes the safe socket, the isolating switch and the earth leakage protector that are electrically connected in proper order, the power cable is electrically connected with the output circuit, and the power supply unit one end is electrically connected with the power cable, and the other end is electrically connected with at least one output circuit, the power supply box of the utility model provides a variety of power supply design, satisfies the power supply of municipal power and built -in power supply, provides the flexibility of power supply of power supply box.

This invention relates to the field of high-voltage disconnecting switch technology, and more specifically to a locking device for a three-column horizontal rotary high-voltage disconnecting switch. The locking device includes a mounting bracket and a locking mechanism. The mounting bracket is fixed to the interlocking brackets of the left, middle, and right sets of switch columns, and is provided with a left mounting plate, a left linkage mounting plate, a right linkage mounting plate, and a right mounting plate, each with through holes. The locking mechanism includes a left locking rod, a right locking rod, and corresponding left locking components, left linkage locking components, right locking components, and right linkage locking components. The left locking rod passes through the through holes in the left mounting plate and the left linkage mounting plate, and its two ends are connected to the left locking components and the left linkage locking components through adjustable mounting structures. The right locking rod passes through the through holes in the right mounting plate and the right linkage mounting plate, and its two ends are connected to the right locking components and the right linkage locking components through adjustable mounting structures. This invention has a compact structure, is easy to install and maintain, and offers high safety.

The application relates to the technical field of low-voltage electrical equipment, and discloses a fuse-type isolating switch which comprises a shell, a mounting bin is arranged in the shell, a plurality of mounting grooves are arranged in the mounting bin, a fuse body is arranged in the mounting grooves, an electricity-connection end is fixedly arranged on one side of the fuse body, a plurality of electricity-connection parts are arranged in the shell, the electricity-connection end is arranged on the inner side of the electricity-connection part, a sealing plate is fixedly connected to one side of the mounting bin and closely adheres to the outer side surface of the shell, an elastic plate is arranged below the electricity-connection part, a plurality of groups of insulating plates are fixedly connected to the top surface of the elastic plate, and an outer frame is fixedly connected to the bottom surface of the shell. Through cooperation of the insulating plates and the linkage assembly, the fuse body can be quickly plugged and replaced, the mechanism can be powered off at the same time, the safety of operation is ensured, and the main power supply does not need to be disconnected.

This utility model provides a five-proof interlocking mechanism for an upper disconnect switchgear, comprising: a closing half-shaft, rotatably mounted on a first housing, with a first interlocking plate fixedly mounted on the closing half-shaft and rotating therewith; an isolation operating shaft and a grounding operating shaft, both rotatably mounted on a second housing, with a first cam fixedly mounted on both the isolation operating shaft and the grounding operating shaft and rotating therewith; and a second interlocking plate, movably mounted on the first and second housings, having a first locking plate portion and a second locking plate portion that are bent and connected in an inverted L-shape, the first locking plate portion having a first protrusion plate that cooperates with the first cam, and the bottom of the second locking plate portion having a first locking block that cooperates with the first interlocking plate; when the disconnect switch is in the open position, the first locking block cooperates with the first interlocking plate to lock, thereby preventing the closing half-shaft from rotating in the closing direction.

The utility model relates to the field of switch cabinet especially relates to a protection device of medium voltage switch cabinet. The protection device of medium voltage switch cabinet includes the box, is provided with the isolating switch in the box, and the isolating switch one side is connected with the inside wall of box, wherein, is provided with the closing assembly in the box, and through closing assembly can make the isolating switch open and shut, realizes the isolation and the conduction of circuit, the top of box is provided with buffer assembly. The protection device of medium voltage switch cabinet provided by the utility model sets up the closing assembly and converts the rotary motion into the linear motion of the toothed plate through the screw thread drive, and then drives the gear rotation, finally realizes the stirring control to the isolating switch operating lever by the adjusting plate and the stirring plate, and this mechanical transmission mode has higher transmission accuracy and stability, can ensure that the isolating switch still can reliably realize the isolation and the conduction of circuit under the frequent operation, improves the operation safety and reliability of medium voltage switch cabinet.

The application relates to a shielding device based on a 10kV line isolating switch, which comprises a control frame, the control frame is placed outside the isolating switch, the isolating switch comprises an insulator and a conductive part, a positioning base is arranged at the lower part of the control frame, the positioning base is clamped outside the insulator, the positioning base comprises a vertical rod and a closed ring, the upper end of the vertical rod is connected with the control frame, the closed ring is connected with the vertical rod through a hinge rod, a clamping block is arranged at the end of the closed ring away from the hinge rod, a screw rod head is arranged in the clamping block, a shielding shell is arranged above the control frame, the shielding shell is sleeved outside the conductive part, and a control mechanism is arranged in the control frame; when the device is used, workers can quickly respond to and position the isolating switch needing shielding, work efficiency is improved, and the reliability and durability of the shielding effect are ensured.

A live-line working, fully insulated, separable gapless surge arrester device comprises: a piercing, detachable insulated clamp, a high-voltage lead, a lightweight insulating cavity, an upper contact, an upper insulated waterproof piston ring, the arrester body, a lower insulated waterproof piston ring, an insulating sheath, a contact ring, a contact piece fixing ring, a contact piece, an elastic tension spring, a metal bracket, an insulating bracket, a disconnector connection bracket, a disconnector, a disconnector itself, and a lead wire connection terminal. It is mainly used for overvoltage protection of power distribution lines. The insulated operating rod allows for live-line installation and removal of the arrester body and disconnector, improving installation and maintenance efficiency. The disconnector temporarily isolates power frequency current and clearly indicates the fault point, reducing losses caused by power outages due to grounding short circuits. The disconnector connection bracket facilitates live-line separation and replacement of the disconnector. The device is fully insulated, improving the insulation process of the line. The piercing, detachable insulated clamp facilitates live-line installation and removal, eliminating the need to strip the insulation from the conductor, thus improving installation efficiency and line insulation.

This application belongs to the field of switch technology, specifically an arc-extinguishing chamber and a circuit breaker or disconnecting switch. The upper part of the arc-extinguishing chamber is divided into multiple independent spaces by a partition structure, which together with the lower arc-extinguishing chamber, forms multiple arc-extinguishing chambers connected in series. Each space has a pressure relief channel connected to the outside. After the circuit breaker or disconnecting switch ignites, the arc moves independently within each partition, preventing the gas in the high-pressure area of ​​the strong magnetic blow-out region from flowing to the low-pressure area of ​​the weak magnetic blow-out region. This effectively promotes the entry of gas into the grid plates (such as the last few grid plates on the moving contact side) in areas with weaker magnetic blow-out force, thereby improving the arc-extinguishing performance of the arc-extinguishing chamber grid plates.

This application provides a disconnecting switch control circuit, an electric disconnecting switch, and an electrochemical energy storage system, including: a control signal input circuit, a main control circuit, a motor drive circuit, a motor position feedback circuit, a relay drive circuit, and a relay; the control signal input circuit outputs a corresponding drive control signal to the main control circuit according to the input control signal; the main control circuit drives the motor to rotate through the motor drive circuit according to the drive control signal; the motor position feedback circuit detects whether the motor has rotated to the target rotation position and outputs a position indication signal to the main control circuit based on the corresponding detection result; when the main control circuit determines that the motor has reached the target rotation position according to the position indication signal, it sends a relay drive signal to the relay drive circuit and controls the motor to stop rotating; when it determines that the motor has not reached the target rotation position, it controls the motor to keep rotating; the relay drive circuit drives the relay to operate according to the relay drive signal to reduce the power consumption during equipment operation.

This invention discloses a single-axis transmission five-position load switch device, including an insulating support housing. The insulating support housing is connected to a primary input terminal and a primary output terminal. It also includes a vacuum interrupter, a moving contact, a grounding stationary contact, and a common stationary contact. The vacuum interrupter is disposed within the insulating support housing, and its stationary end is connected to the primary output terminal. A disconnector stationary contact is connected to the primary input terminal. A rotating shaft is rotatably mounted on the insulating support housing. The moving contact is engaged with the rotating shaft, and its two ends are a first contact portion and a second contact portion, respectively. The grounding stationary contact and the common stationary contact are both disposed within the insulating support housing. The common stationary contact is electrically connected to the moving end of the vacuum interrupter. The moving end of the vacuum interrupter and the rotating shaft are linked together via a linkage mechanism.

This invention provides a horizontal high-voltage disconnecting switch, including a disconnecting switch body and an assembly protection device. The assembly protection device is snapped onto the disconnecting switch body. The disconnecting switch body includes a contact mechanism and a contact finger mechanism. The assembly protection device has a first slot matching the contact mechanism and a second slot matching the contact finger mechanism. The assembly protection device is snapped onto the contact mechanism through the first slot and onto the contact finger mechanism through the second slot, thereby preventing the contact mechanism and the contact finger mechanism from opening in the horizontal direction. This application, through the assembly protection device, enables the high-voltage disconnecting switch to be safely installed during the assembly and commissioning process, solves the problem of significant safety hazards during the assembly and commissioning of high-voltage disconnecting switches, reduces production costs, and improves assembly efficiency.

This application provides a side-opening electrically operated disconnect switch, comprising: a mounting plate installed in a disconnect switch cabinet; two disconnect switch bodies, one of which is disposed on the upper surface of the mounting plate, and the other of which is disposed directly above the first disconnect switch body and connected by an insulating block; and an electrically operated device disposed below the mounting plate relative to the two disconnect switch bodies, with its drive end connected to the transmission end of the two disconnect switch bodies via a connector and used to control the opening or closing of the two disconnect switch bodies. This application can quickly disconnect the circuit in case of a fault, while avoiding the expansion of the fault due to mechanical jamming. Thus, while ensuring electrical isolation, it simplifies the mechanical structure, improves the reliability and service life of the disconnect switch cabinet, and provides an important guarantee for the safe operation of the subway power supply system.

This application provides a fan control circuit, comprising: a power supply control module connected to the fan's power supply terminal, used to provide power voltage to the fan in response to a power supply signal; and a fan control module connected to the fan's control terminal, used to input control signals to the fan in response to a drive signal. The power supply control module includes an isolating switch unit and a current-limiting switch unit. The isolating switch unit controls the current-limiting switch unit to conduct in response to the power supply signal, and the current-limiting switch unit disconnects when the current exceeds a set threshold. This application isolates the high-voltage power circuit from the low-voltage control circuit, improving the safety of the fan control circuit. Furthermore, it can automatically disconnect the circuit in case of a short circuit or overload fault in the fan's internal circuitry, thereby helping to prevent damage to the fan control circuit.