541 results about "Surge protector" patented technology

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.

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.

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 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.

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 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.

The invention relates to a surge protection device, and belongs to the technical field of surge protection. The surge protection device comprises an input piece, an output piece and a contact piece, the input piece and the output piece are separated through the piezoresistor, the contact piece is movably arranged on the input piece, and a hot melting piece is arranged on the input piece; the hot melting piece limits the contact piece to the initial position and enables the input piece and the output piece to be in an open circuit, and after the hot melting piece is melted, the contact piece is reset to the working position, and the input piece and the output piece are electrically connected through the contact piece. According to the surge protection device provided by the invention, the structure for triggering the short circuit of the input piece and the output piece is a mechanical structure, so that the stability of the short circuit between the input piece and the output piece can be ensured no matter how the installation position of the surge protection device is. In addition, the internal resistance of the product is low, the product can still bear large current for a long time after the piezoresistor is short-circuited, and the surge protection effect can be achieved on rear-end equipment.

The embodiment of the invention discloses an intelligent lightning protection system for fan blade deicing control equipment, which comprises a lightning protection system body, a system state monitoring system and a comprehensive intelligent lightning protection management system, and is characterized in that the lightning protection system body consists of a grounding module, a shielding module and a surge protection module; a basic guarantee effect is achieved on a comprehensive intelligent lightning protection management system; the system state monitoring system is composed of a lightning discharge detection module and a surge protector state monitoring module and plays an auxiliary supporting role in the comprehensive intelligent lightning protection management system. The comprehensive intelligent lightning protection management system is used for realizing man-machine interaction between lightning protection equipment and operation and maintenance personnel and providing decision reference for daily operation, maintenance and management of a fan blade deicing control system. According to the method, the actual operation environment of the fan is fully considered, a lightning protection design scheme is provided in a targeted mode, and the method has the advantages of being large in lightning protection margin, high in system state sensing capacity and high in fault monitoring and early warning speed.

The present invention provides an integrated multi-functional power distribution unit, which includes a base. A circuit board is arranged inside the base, and a power distribution module is plugged on the base. The power distribution module is fixedly connected to the base through a buckle, and includes a communication module, a surge protector, a main switch, and a branch switch arranged in parallel in sequence. A connecting conductor is arranged inside the base on one side of the circuit board. The outgoing line end of the main switch is connected in parallel with the incoming line ends of the branch switch and the surge protector through the connecting conductor. An incoming line end of an electrical loop is arranged on the main switch, and the outgoing line end of the surge protector is grounded. The present invention is convenient to install and has higher safety.

The utility model provides a connecting piece and a surge protection device, and relates to the technical field of electrics. The connecting piece comprises a connecting body, and the connecting body is provided with a containing groove. The containing groove of the connecting body of the connecting piece can be used for containing the first connecting end of the overvoltage limiting piece, and the two opposite sides of the first connecting end of the overvoltage limiting piece abut against the opposite inner walls of the containing groove, so that the first connecting end makes contact with the inner walls of the containing groove, and friction force exists between the first connecting end and the inner walls of the containing groove. Friction force generated by abutting between the first connecting end and the inner wall of the containing groove enables the connecting body to be fixed in the containing groove and enables the connecting body to be electrically connected with the first electric connecting end, and therefore the overvoltage limiting piece can be reliably and electrically connected with the circuit board to be protected. When the connecting piece and the overvoltage limiting piece are assembled, the first connecting end of the overvoltage limiting piece can extend into the containing groove through the opening of the containing groove, so that the overvoltage limiting piece and the connecting piece can be fixed and electrically connected. Therefore, the assembling efficiency of the connecting piece and the overvoltage limiting piece can be improved.

The application discloses a large-capacity switching type surge protector, which comprises a shell base, a gap component capacitor protection mechanism and a grafting positioning mechanism are fixedly arranged in the shell base respectively, when lightning weather is encountered, the influence of higher surges exceeds the withstand voltage capacity of the internal equipment, at this time, the capacitor trigger module on the grafting top plate is inserted into the gap space, the porcelain capacitor is adopted for the capacitor trigger module, the withstand voltage capacity of the single capacitor can reach 3KV or more, the Up reaches the protection level requirement, the capacitor device is not damaged during the working of the SPD, the service life of the SPD is effectively prolonged, the voltage protection level is reduced, and the capacitor device is not damaged after being impacted by lightning current for many times, the line board is fixed and limited in four directions, contact failure caused by shaking of the line board contact is avoided, the defective rate during production of the product is reduced, and the product performance is more stable.

The utility model relates to a surge protector with a short-circuit current protection function, which comprises a shell, an operating mechanism arranged in the shell, a moving contact in linkage fit with the operating mechanism, a static contact matched with the moving contact, an electromagnetic release, a lightning protection module, a first wiring terminal and a second wiring terminal, the lightning protection module comprises a voltage dependent resistor, an upper electrode arranged on the voltage dependent resistor and connected with the static contact, a lower electrode arranged on the voltage dependent resistor and connected with the static contact, and a middle electrode arranged on the voltage dependent resistor and connected with the second wiring terminal, and a current transformer is arranged on the side, corresponding to the first wiring terminal, in the shell. The first wiring terminal is provided with a conducting strip which is inserted in the current transformer in a penetrating mode, and the conducting strip is connected with the moving contact in a flexible connection mode. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly, safety and reliability, and short circuit protection function.

The utility model relates to the field of lightning protection equipment, in particular to an actuating signal series transmission device of a surge protector and a lightning protection branching cabinet. The utility model provides an actuating signal series transmission device of surge protectors. The actuating signal series transmission device comprises a signal circuit and a plurality of surge protectors, each surge protector comprises a monitoring module, the monitoring module is connected with a thermal tripping assembly of the surge protector, the monitoring module can control opening and closing of the signal circuit at the surge protector, and the multiple surge protectors are arranged on the signal circuit in series.

The utility model relates to the field of surge protector equipment, in particular to a modularized backup protection device and a surge protector. The modularized backup protection device provided by the utility model comprises a connecting rod assembly, a movable contact assembly and a trigger assembly, the connecting rod assembly is movably matched with a first shell, and the movable contact assembly and the trigger assembly are respectively movably matched with a second shell. The connecting rod assembly is provided with a first abutting face and a second abutting face which extend out of the first shell and are used for being matched with the movable contact assembly and the trigger assembly, the first shell is detachably matched with the second shell in the first direction, and the first abutting face and the second abutting face are both parallel to the first direction.

The utility model relates to the technical field of surge protectors, in particular to a monitoring circuit for a surge protector and the surge protector, which monitors the state of a surge module through an over-current detection module, an over-voltage detection module and an electric leakage detection module and transmits a monitoring result to a control module. And the control module outputs corresponding data to the communication module to communicate with a control terminal, so that the state of the surge module is monitored in real time, the size of the surge protector is reduced, the cost is saved, and the surge protector is convenient to install.

The utility model provides a thermal tripping structure and a surge protector. The thermal tripping structure comprises an on-chip electrode arranged on an MOV chip; the extraction electrode is welded on the chip upper electrode; the chip upper electrode is provided with a welding boss embedded with the extraction electrode, and a welding convex strip protrudes from the welding boss; the front end plane of the extraction electrode is opened to form a welding opening which is embedded into the welding boss. An existing thermal tripping structure is improved, the front end plane of the extraction electrode is directly opened to form a welding opening, on one hand, a welding line of a welding boss is effectively lengthened, so that firmness is enhanced, and large pulse current is coped with; and on the other hand, the front end plane of the extraction electrode is directly pressed downwards, so that the welding opening and the welding boss are welded in an embedded manner, and the separation distance between the extraction electrode and the welding boss after thermal separation can be ensured and an arc discharge fault can be avoided by depending on the material characteristics of the extraction electrode, providing power for thermal separation and performing tripping through natural reset of the horizontal plate surface.

This application relates to the technical field of surge protectors, and discloses a method, system, and terminal for remote monitoring of the operating status of surge protectors. The method includes: a first processor acquiring electrical data of a first surge protector through a preset first mutual inductance sensor, calculating surge component data, calculating its change trend data according to a first cycle, and matching it with a trend template to generate a first status identifier; if a match is found, the identifier is "good"; otherwise, it is "abnormal." The first processor establishes a local wireless temporary connection with a second processor connected to a second mutual inductance sensor within a set distance according to a second cycle, and sends the first status identifier; the second processor stores the identifier and the communication address of the first processor. The second processor generates a second status identifier corresponding to the second surge protector, inserts the two status identifiers into its own device information, and wirelessly sends it to a remote backend. This method enables remote monitoring of the operating status of surge protectors, can promptly detect abnormalities, and effectively improves operation and maintenance efficiency.

The utility model relates to a surge protector for a power supply module, and belongs to the technical field of lightning protection. The power supply module surge protector comprises a bare chip TVS, a plastic package seat, a tripping electrode and a tripping assembly. The bare chip TVS is provided with a first pin and a reserved bare electrode; the plastic package seat wraps the bare chip TVS through injection molding, and the first pin and the reserved bare electrode are exposed; the first end of the tripping electrode and the reserved bare electrode are soldered to form a soldering point, and the second end is a second pin; the tripping assembly is located between the plastic package seat and the tripping electrode, can be inserted into the separated welding point, and is used for covering the welding point and separating the first end of the tripping electrode from the reserved bare electrode. According to the power supply module surge protector provided by the utility model, when the bare chip TVS fails, the welding point of the tripping electrode and the bare chip electrode can be quickly disconnected so as to be separated from a main circuit, fire combustion caused by continuous heating of the bare chip TVS is avoided, and the safety and reliability of a product can be effectively improved.

The utility model belongs to the technical field of lightning protection current transformers, and particularly relates to an energy storage current transformer with a lightning protection module, which comprises a current transformer shell, a connecting seat connected to the outer side of the current transformer shell, a lightning protection assembly connected to the current transformer shell, and a lightning protection device connected to the inner side of the current transformer shell, the surge protector and the lightning protection device are arranged on the inner side of the converter shell, the surge protector and the lightning protection device are connected with an external grounding system through a grounding wire, the movable ventilation part assists in air exhaust and heat dissipation of the interior of the converter shell, the lightning protection device is matched with the grounding wire, and when lightning stroke occurs, lightning impulse energy is absorbed and discharged by the grounding wire through the external grounding system. And meanwhile, the surge protector works, so that the possibility that other devices in the box body are damaged when the lightning protection device generates an arc spraying phenomenon is reduced.