686 results about "Surge protector" patented technology

A monitored DC charging method for charging a vehicle rechargeable traction battery by way of a charging voltage source external to the vehicle is provided. The rechargeable traction battery has a nominal voltage of at least 500 V. In a checking step, the method includes detecting whether the charging voltage source has a surge protector which includes a voltage limiting element that is provided between a charging voltage potential and a ground potential of the charging voltage source and is set up to transition to a conductive state from a voltage below the nominal voltage. DC voltage is transmitted from the charging voltage to the rechargeable traction battery when the charging voltage source does not have the surge protector. At least one DC charging mode for transmitting DC voltage from the charging voltage source to the rechargeable traction battery is suppressed when the charging voltage source has the surge protector.

The utility model discloses a lightning protection device which comprises a surge protector body and a backup protector detachably arranged in the surge protector body, the backup protector comprises a tripping sliding block, a spring, a piezoresistor and a bimetallic strip, the bimetallic strip is fixedly connected with the tripping sliding block and abuts against a leading-out pin of the piezoresistor, and the tripping sliding block is connected with the spring. The trigger is used for triggering the tripping slide block to move; the spring abuts against the inner wall of the backup protector and the tripping sliding block, acts on the tripping sliding block and is used for opening the surge protector body. According to the utility model, the motion speed of the tripping slide block is accelerated through the cooperation of the bimetallic strip with the spring after the bimetallic strip is heated to expand and deform, so that the moving plate and the conductive protection block are electrically connected and separated, and the normal use of the tripping slide block, the spring and the bimetallic strip is prevented from being influenced by the explosion of the piezoresistor through the partition plate, thereby ensuring the timely breaking of the surge protector body and ensuring the safety of a circuit. And the product has the advantages of high sensitivity, small overall size, high safety and the like.

The invention relates to the technical field of power system protection equipment testing, in particular to an online testing method for a backup protector special for a surge protector, and aims to solve the problem that in the prior art, spectral characteristics under actual fault conditions such as lightning stroke or short circuit cannot be comprehensively reflected only by depending on power frequency testing. A high-frequency dynamic frequency sweeping signal is injected through the non-contact coupling unit, a multi-source signal fusion judgment mechanism is combined, the physical contact risk is avoided, meanwhile, real working condition simulation is achieved, the problems of test distortion, weak anti-interference capacity and aging monitoring deficiency in a traditional method are effectively solved, and the test accuracy is improved. The method has the technical effect of remarkably improving the test safety and accuracy.

The invention relates to an alternating-current and direct-current integrated power supply system and a control method, a power conversion unit comprises a parallel high-frequency rectification module, an inversion module and a communication power supply module, and a direct-current side is connected in parallel to a common direct-current bus; the energy storage unit realizes energy interaction between a storage battery pack and a bus through a bidirectional DC / DC converter, and a matched health monitoring circuit acquires internal resistance, temperature and voltage data in real time; the dynamic voltage support unit is formed by connecting a filter network and a transient suppression device in series and is directly connected with a bus to suppress voltage fluctuation caused by load abrupt change; the electromagnetic protection unit integrates an input-stage surge protector, a cabinet body grounding copper bar and an anti-interference device, so that the electromagnetic compatibility of the system is guaranteed; the intelligent control unit is combined with the communication bus through the main controller, and the functions of multi-mode power supply switching, energy storage unit temperature compensation charging and cooperative fault protection are achieved. The system meets the AC / DC load hybrid power supply requirement through the modular design and the cooperative control strategy, and improves the reliability and adaptability of the power supply system.

The invention relates to a surge protector withstand voltage test system and method, and belongs to the technical field of surge protectors, the system comprises a test tool, the test tool comprises a tool body, a pneumatic execution component and a PCB function board, the tool body is made of bakelite, metal handles are arranged on the two sides of the tool body, and a detachable cover plate is fixed to the bottom of the tool body through hinges and lock catches; a wiring groove is formed in the inner side of the cover plate; the pneumatic execution component comprises a double-piston cylinder, a slide rail, a clamp assembly and an elastic conductive elastic needle; the double-piston cylinder drives the clamp assembly to linearly move along the X direction through the slide rail so as to clamp the surge protector to be tested; the elastic conductive elastic needle is fixed on the clamp assembly, the head of the elastic conductive elastic needle is in elastic contact with an exposed contact of the tested surge protector, and the tail of the elastic conductive elastic needle is connected to the PCB function board through a wire; the PCB function board comprises a high voltage constant current source circuit, a multipath relay switching circuit and an MCU control module.

A DC high voltage cut-off device includes at least one cut-off module, having: a main cut-off apparatus in a main branch, a general surge protector in an absorption branch, and a changeover branch, with at least one changeover capacitor wherein: a first plasma tube switch in the changeover branch, a pre-charge circuit of the changeover capacitor, a changeover surge protector, in parallel with the changeover capacitor, and having a protection voltage lower than a nominal operating voltage of the cut-off module and, by at least one pilotable switch which supplies the first plasma tube switch with a voltage derived from an electric voltage between the armatures of the changeover capacitor.

The invention relates to the technical field of electrical protection devices, in particular to a service life early warning method and system for a surge protection device, and the method comprises the steps: carrying out the leakage current detection of the surge protection device, and recording the change condition of the detected leakage current as A; performing temperature detection on the surge protection device, and recording the detected temperature value as T; carrying out temperature detection on the environment where the surge protection device is located; when A is smaller than A1 and / or T is smaller than T1, the service life early warning grade is low; when A1 is smaller than or equal to Alt; a2 and / or when T1 is smaller than or equal to Tlt; t2 and Tgt; when t1, the service life early warning grade is middle; when A2 is less than or equal to Alt; a3 and / or when T2 is less than or equal to Tlt; t3 and Tgt; when t2, the service life early warning grade is high; when A > = A3 and / or when T > = T3 and Tgt; when t3, the service life is judged to be invalid; a3gt; a2gt; a1, T3gt; t2gt; t1, t3gt; t2gt; t2gt; t1. Therefore, the service life condition of the SPD is judged by detecting the leakage current, the temperature and the environment temperature of the SPD, and an accurate service life early warning level is given.

The over-temperature protection structure comprises a protector mechanism and a cooling mechanism, the cooling mechanism is fixedly connected with the protector mechanism, the cooling mechanism comprises a cooling box, the top of the inner wall of the cooling box is fixedly connected with a motor, the output end of the motor is fixedly connected with a first transmission wheel, and the output end of the first transmission wheel is fixedly connected with a second transmission wheel. The surface of the first transmission wheel is in transmission connection with a transmission belt, the left side of the inner wall of the cooling box is movably connected with a threaded rod through a bearing, and the other end of the threaded rod is movably connected with the inner wall of the cooling box through a bearing. According to the utility model, through the arrangement of the cooling mechanism, the phenomenon that a conventional extra-high voltage surge protector generates a large amount of heat in a high-voltage operation process and the heat cannot be quickly volatilized to cause overheat of the protector to cause an accident is changed, the temperature of the protector can be effectively reduced, and long-term stable operation of the protector can be ensured; and the service life and the safety of the device are effectively protected.

The embodiment of the invention provides a surge protector and a surge protection device. The surge protector comprises: a housing comprising a line pin and a grounding pin; a surge protection component accommodated in the housing and coupled to the ground pin, the surge protection component having a width smaller than a height and a length so as to be flat; the tripping assembly comprises a fusing part which is arranged in the shell and is integrally positioned on one side of the surge protection part in the height direction, and the fusing part is coupled to the circuit pin and is electrically connected to the surge protection part through solder; and a separating member coupled between the fusing member and the surge protection member via an elastic member and adapted to move to a tripping position when the solder melts. According to the surge protector disclosed by the embodiment of the invention, the tripping assembly and the surge protection component are arranged up and down along the height direction, so that the height space of the module is fully utilized, the occupation of the width space is reduced, and the formation of the ultrathin surge protector is facilitated.

1. The name of the design product: surge protector (house car). 2. The use of the design product: the design product is applied to the power supply of house car yacht to provide protection function. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: design 1 perspective view. 5. Design 1 is specified as the basic design.

The invention provides a graphite full-module tripping power supply surge protector, and relates to the technical field of surge protectors. The graphite full-module tripping power supply surge protector comprises a shell, a graphite gap assembly and a tripping mechanism, the graphite gap assembly is arranged in the shell, and the graphite gap assembly comprises a graphite electrode A and a graphite electrode B; the tripping mechanism comprises an elastic sheet assembly, a tripping seat, a microswitch and a remote signaling terminal; the elastic sheet assembly is arranged in the shell, the elastic sheet assembly comprises a tripping elastic sheet, the end part of the tripping elastic sheet is in tin soldering connection with a tripping seat, and the tripping seat and the graphite electrode A are integrally arranged; the microswitch is in buckling connection with the shell, and the remote signaling terminal is electrically connected with the microswitch; and when the graphite gap assembly is heated by the fault current, the tripping elastic sheet is separated from the tripping seat and triggers the microswitch. The graphite full-module tripping power supply surge protector can be tripped in time in case of fault current, combustion accidents caused by overheating are avoided, and normal operation of circuit equipment is ensured.

The utility model relates to the technical field of electrical protection devices, in particular to a surge protection device with a temporary overvoltage protection function, which comprises a piezoresistor assembly, an inductor and a switch assembly, the piezoresistor assembly is connected with the switch assembly in parallel, and two ends of the inductor are respectively connected with the piezoresistor assembly and the switch assembly. The switch assembly comprises a conduction switch, a combination switch, a resistor R1 and a capacitor, the conduction switch is in linkage connection with the combination switch, the conduction switch is connected with the capacitor in series, the resistor R1 is connected with the combination switch and the inductor in series, and one end, away from the conduction switch, of the capacitor is connected with the combination switch and the piezoresistor assembly; when the conduction switch is closed and the capacitor is fully charged, the combination switch is conducted. By means of the arrangement, the surge protection device can be prevented from being damaged by impact when overvoltage occurs; when surge voltage occurs, the surge protection device can effectively discharge the surge voltage, and the safety of electric equipment is protected.

The utility model relates to the technical field of surge protectors, in particular to an integrated intelligent surge framework, which is characterized in that a data acquisition module is externally connected to a surge protector, and information acquired by the surge protector is acquired through the data acquisition module; information collected by the surge protection device is transmitted to the control terminal in a wireless transmission mode, meanwhile, the control terminal can also issue a command to the data collection module in the wireless transmission mode, and then the data collection module transmits the corresponding command to the surge protection device, so that the problem of unstable signal transmission caused by PLC communication can be solved; in addition, the lightning protection device is also suitable for lightning protection projects in remote areas.

According to the electrical system surge test modeling method and the terminal provided by the invention, the lightning surge interference source model, the equipment port and impulse voltage conduction path model, the equipment insulation cooperation model and the lightning protection device model are established to perform simulation test on the response behavior of the lightning surge interference of the low-voltage electrical system; according to the invention, flow evaluation is carried out on selection of lightning protection measures and lightning protection devices of the system so as to analyze whether the lightning protection measures are appropriate after an electrical system is connected to a power distribution network, whether main facilities and equipment are damaged after lightning stroke, whether major safety consequences are generated, and whether selection of the lightning protection devices is reasonable. Damage to equipment in an actual test is avoided, and a basis is provided for lightning protection design of an electrical system; and a lightning protection device model of the surge protector is established by using a controlled voltage source principle, and voltage protection level parameters of the surge protector are output according to a current value, so that the voltage-sensitive and clamping characteristics of the real surge protector during action are simulated.

The invention relates to the technical field of surge protector safety monitoring, in particular to an intelligent surge protector monitoring method, which comprises the following steps that: a monitoring system executes initialization self-inspection; the monitoring system executes electric leakage demagnetization protection, and the short-circuit coupling mutual inductor carries out demagnetization; the monitoring system collects the leakage current signal and carries out filtering processing, identifies the cracking degree and determines the failure level; the monitoring system captures lightning stroke overcurrent transient current signals, records signal parameters and evaluates the lightning stroke tolerance of the surge protector; the monitoring system continuously tracks the state of the three-phase voltage signal and executes overvoltage logic judgment; whether a protection ground wire is connected or not is judged according to the pin level state of the ground loss state detection circuit; a detacher is arranged, and whether the detacher is in an unhooking state or not is judged; and the temperature change of the terminal strip is detected through the temperature sensor. According to the invention, on-line monitoring can be carried out on the surge protector in real time, and fault monitoring of a leakage current detection circuit, lightning stroke over-current detection, overvoltage detection, ground loss detection, unhooking detection and the like can be completed.

The utility model discloses a surge protection device with backup switch protection, which is characterized in that a backup switch static contact of a left backup protection area is electrically connected with a wire inlet end of the surge protection device, and a backup switch moving contact is electrically connected with a one-way gap; two terminals of the one-way gap, the gas discharge tube and the electromagnetic coil of the left side backup protection area are connected in parallel and are electrically connected with a connection point B of the left side backup protection area; a connection point B of the right surge discharge area is electrically connected with the T1 graphite multi-stage discharge gap assembly, the T1 graphite multi-stage discharge gap assembly is electrically connected with a connection point C of the right surge discharge area, and the connection point C of the right surge discharge area is electrically connected with a grounding end of the left backup protector area. The backup switch of the left backup protection area and the T1 graphite multi-stage discharge gap assembly of the right surge discharge area are both in protective electric connection with the remote signaling switch, and the remote signaling switch outputs a prompt signal in a remote signaling mode. The use safety protection performance is improved, and the phenomenon of damage to a protected circuit or product is avoided.

A distributed grounding backflow monitoring system for a railway traction substation comprises an indoor equipment subsystem and an outdoor equipment subsystem. The outdoor equipment subsystem is composed of a plurality of centralized grounding box monitoring units and a plurality of voltage and integrity monitoring unit subordinate subsystems. The indoor equipment subsystem is arranged in a standard cabinet and comprises a man-machine interaction unit, a data storage and processing unit and a power supply module; the communication channel is mainly used for providing a channel for communication between subsystems, optical signals are selected, and electric signals can also be adopted. The utility model solves the problems of complex wiring, large work amount and large cable interference, and has the characteristics of convenient installation, modular layout and the like, an outdoor equipment power supply adopts an isolation transformer, a signal setting surge protector or an optical fiber, the safety influence of lightning stroke and overvoltage on indoor equipment is avoided, the overall power of the equipment is relatively large, and a regular polling mechanism is adopted, so that the safety of the equipment is ensured. The power consumption is reduced, the load is balanced, and the power configuration requirement is reduced.

1. Name of the product in this design: Surge protector (RV FC-12). 2. Purpose of this design: For use in a surge protector. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model provides a photovoltaic incoming line protection device, comprising a DC input interface used for connecting an external photovoltaic power generation assembly so as to receive DC output by the photovoltaic power generation assembly; the direct-current output interface is used for connecting an energy storage converter, and the direct-current output interface is connected with the direct-current input interface through a connecting cable; the contactor is connected to the connecting cable and is used for connecting or disconnecting the corresponding direct current input interface and the direct current output interface; and the surge protector is arranged on a line segment between the contactor and the direct current output interface in the connecting cable. The photovoltaic incoming line protection device can disconnect the circuit between the photovoltaic power generation assembly and the energy storage converter when the current output by the photovoltaic power generation assembly is abnormal, thereby preventing the energy storage converter from being damaged, and enabling the energy storage converter to have better safety.

An apparatus for diagnosing a surge protector connected to a battery includes a first switch configured to open and close a line that connects the first line to the second line by being directly connected to one end of each of the first line and the second line, a second switch configured to open and close a line that connects the second line to the third line by being directly connected to one end of each of the second line and the third line, and a processor configured to control opening / closing operations of the first switch and the second switch, measure a diagnostic voltage applied to the diagnostic resistor according to the opening / closing operation of the first switch and the second switch, and diagnose the surge protector based on the diagnostic voltage. A corresponding method and non-transitory computer-readable medium are also disclosed.

The present invention discloses a starting connection device, including a box body, a box door, a wiring terminal and a busbar connector. The box room surrounded by the box body and the box door is divided into a control room adjacent to the box door and an output room away from the box door by a middle partition. A circuit breaker, an air switch, a surge protector and an electric energy detector are arranged in the control room, and a copper busbar group is arranged in the output room. The starting connection device also includes a temperature detection module, and the temperature detection module includes a circuit breaker input temperature measuring plate and a circuit breaker output temperature measuring plate arranged on the inner surface of the box door adjacent to the control room, and a copper busbar temperature measuring plate arranged on the inner wall surface of the middle partition of the output room. The box body of this device adopts a double-layer structure, and the structure is compact and minimized; the multi-finger busbar connector can realize T-type quick connection with the busbar trough and the lateral position is adjustable; and a plastic slide plate is arranged to have a dustproof effect; the wireless infrared temperature monitoring method realizes all-round temperature monitoring more comprehensively.

The utility model relates to the field of surge protector equipment, in particular to a surge protector signal transmission device and a surge protector. The surge protector signal transmission device provided by the utility model comprises an intelligent box and an action member of a thermal tripping assembly, the intelligent box comprises a chassis member and an optical fiber, the chassis member is provided with a first support structure corresponding to the action member, and the corresponding position of the optical fiber is lapped on the first support structure. The action piece can be matched with the first support structure so that the optical fiber can be bent, and the end of the optical fiber is coupled with a monitoring host.

The utility model relates to the field of surge protector equipment, in particular to a linkage mechanism of a backup protection breaker and a surge protector. The linkage mechanism of the backup protection breaker comprises a rack fixedly connected with a moving assembly and a gear assembly matched with an action piece of a trigger assembly, the moving assembly is matched with a breaking spring, and the gear assembly comprises a first gear part and a second gear part which are coaxially matched. The gear radius of the first gear part is larger than that of the second gear part, the first gear part is matched with the action piece, the action piece is used for limiting rotation of the first gear part under the action of the trigger assembly, and the rack is meshed with the second gear part.

The invention discloses a surge protector, and relates to the technical field of overvoltage protection equipment, and the surge protector comprises a first separation unit and a second separation unit which are connected in series. The first separation unit comprises a first pole piece of the piezoresistor and an electrode piece electrically connected with the wire inlet end, and the first pole piece and the electrode piece are connected through soldering tin to form a first breakpoint. The second separating unit comprises a second pole piece of the piezoresistor, a moving contact electrically connected with the wire outlet end and a separating mechanism, the moving contact is in contact with the second pole piece to form a second breakpoint, the separating mechanism comprises a sliding block and an elastic piece, the electrode piece is fixed to the sliding block, and the sliding block is provided with a firing pin. When surge occurs in the circuit, the soldering tin is fused to disconnect the first breakpoint, the sliding block slides under the action of the elastic piece, and the firing pin pushes the moving contact to be separated from the second pole piece to achieve disconnection of the second breakpoint. According to the surge protector provided by the invention, the breaking capacity of the surge protector can be improved, and the risk of electrical accidents caused by untimely breaking is reduced.

This utility model also provides a surge protector with monitoring function. By setting up a monitoring box, and then incorporating temperature and humidity sensors, the surge protector's temperature and external humidity can be acquired, enabling safety monitoring of the surge protector. This can prevent high humidity environments from causing internal short circuits or corrosion in the surge protector, thus affecting its performance and lifespan. Temperature data can also be used to promptly detect abnormal usage conditions of the surge protector and adjust the cooling fan efficiency for efficient heat dissipation. This allows for timely alerts to users to pay attention to the surge protector's usage before it deteriorates or malfunctions, assessing whether there is a risk of functional failure or deterioration, thereby ensuring timely detection of potential problems and improving the safety of electrical equipment use.

1. The name of this design product: surge protector. 2. Purpose of the product with this appearance design: When overvoltage occurs in the power grid due to lightning strike or other reasons, the protector will be turned on quickly within nanoseconds, which can quickly and effectively release the overvoltage energy, thereby protecting electrical equipment from overvoltage. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The present invention relates to the field of wind turbine monitoring technology, and in particular to a barometer for monitoring a wind turbine nacelle, comprising: a detection assembly, comprising a fixing bracket mounted on the outside of the wind turbine nacelle and a barometer body mounted above the fixing bracket, wherein the barometer body is connected to the fixing bracket via a threaded nut, and the barometer body is connected to a main controller inside the wind turbine nacelle via a wire, and a surge protector is installed in the main controller; and an anti-loosening assembly, comprising a shell mounted on the fixing bracket. The beneficial effect of the present invention is that when the unit is in extreme weather such as freezing and typhoons, the operation and maintenance personnel can judge the surrounding environment of the unit by the changes in the background numerical values, and ensure that the unit can be started and stopped in time in the background of the duty room in severe weather, thereby avoiding the need for the operation and maintenance personnel to repeatedly go to the site to observe the operation of the unit and then judge whether the unit is started and stopped.

The present invention discloses an anti-misplugging structure for a surge protector, which relates to the technical field of surge protectors, and comprises a base and a plurality of main bodies detachably connected to the base, wherein the base is provided with wiring holes and a blocking mechanism, wherein the wiring holes are provided with a plurality of holes for connecting a neutral line, a live line or a ground line; the blocking mechanism has a first state of blocking the plurality of wiring holes and a second state of opening the plurality of wiring holes, and when the plurality of main bodies are installed on the base, the blocking mechanism switches to the second state. The present invention provides an anti-misplugging structure for a surge protector, which can block the plurality of wiring holes through the first state of the blocking mechanism, and when in use, the plurality of main bodies are installed on the base to form a complete surge protector, and at this time the blocking mechanism switches to the second state to open the plurality of wiring holes, so that the neutral line, the live line or the ground line can be normally inserted into the wiring hole for connection.

The utility model belongs to the technical field of switching devices, and discloses a surge protector and a contactor. The surge protector comprises an outer shell, an electronic component board and a connecting terminal, the electronic component board is arranged in the outer shell, the connecting terminal is a conducting bar, one end of the connecting terminal is welded to the electronic component board, the connecting terminal is of a U-shaped structure, the U-shaped structure comprises a first board, a second board and a third board, the first board and the third board are oppositely arranged, and the second board is arranged on the first board. The second plate is connected between the first plate and the third plate, the first plate is welded to the electronic component plate, and the third plate is connected to the wiring end of the coil. According to the surge protector, electric connection between the coil and the surge protector is changed into conducting bar hard connection, so that the problem that the wire is easily separated from the coil due to the bending stress effect of the wire is avoided, and the connection stability between the connecting terminal and the coil can be ensured; and the use safety and reliability of the whole surge protector and the contactor are ensured.

The utility model provides a surge protector tripping mechanism, which belongs to the technical field of surge protectors, and comprises a shell, a mounting groove is arranged at the top of the shell, two groups of hook pieces are arranged in the mounting groove, a rotatable tripping piece is arranged between the two groups of hook pieces, the tripping piece can be connected with one group of hook pieces, and the other group of hook pieces can be connected with the other group of hook pieces. The corresponding sides of the two groups of tripping pieces are provided with connecting pieces, one end of one group of connecting pieces is connected with a Hall current detection module, one side of the Hall current detection module is connected with a second output pin, and the second output pin is connected with an external detection load or a grounding wire; through the arrangement of the Hall current detection module, when the mechanism detects that a surge phenomenon is tripped, the tripping piece is connected with the Hall current detection module, and the Hall current detection module continuously captures line state information, so that the problem that a traditional tripping mechanism cannot continuously detect a line during tripping is solved.