43results about How to "Avoid Electrical Safety Accidents" patented technology

The invention discloses a visual operation process monitoring mistake precaution system and a control method. The visual operation process monitoring mistake precaution system comprises a centralized control mistake precaution main machine, a video integrated platform, an equipment video server, a station control mistake precaution main machine, a mobile video server, a monitoring and data collection system, a handheld intelligent terminal, a computer key, a locking lock and a mobile video terminal, wherein the centralized control mistake precaution main machine, the video integrated platform, the equipment video server, the station control mistake precaution main machine, the mobile video server and the monitoring and data collection system are interconnected through a wired network; the station control mistake precaution main machine, the handheld intelligent terminal and the computer key are sequentially connected with one another in a wireless manner; the locking lock is connected with the computer key in a wired manner; and the mobile video terminal is connected with the mobile video server in the wireless manner. According to the control method, through the measures of mistake precaution logic judgment, strayed interval judgment, equipment state confirmation, omnibearing video monitoring and the like, the problem of real-time interaction with field operation information is solved by a wireless network; a wireless mobile video is introduced; existing equipment videos are integrated; and the visual operation process monitoring mistake precaution system has the advantages that management of visual centralized operation monitoring mistake precaution on a centralized control station is achieved, the working efficiency of an electric power operation department is improved, and the safety management level of the electric power operation department is also improved.

The invention discloses a transformer substation indoor environment safety intelligent control system which comprises an environment control system as well as a fresh air system, an automatic discharging sub-system, a flame-proof sub-system, a safety early-warning system and a plurality of sensors which are mounted in a transformer substation and connected with the environment control system. The system has the functions of remote communication and monitoring; and in an age that more transformer substations are in unmanned management, by using the system, relevant people can query the environment information of the corresponding transformer substation easier and more conveniently, and receive a warning signal of various abnormal conditions immediately and make the corresponding treatment in time.

The invention discloses a low-frequency and low-voltage load reduction system based on a distributed hierarchical control framework. The low-frequency and low-voltage load reduction system comprises at least two execution child stations and a master station, and the execution child stations and the master station communicate in a two-way manner. All the execution child stations are low-frequency and low-voltage load reduction devices arranged in a substation. When the low-frequency and low-voltage load reduction devices detect that the frequency or voltage of a line is lower than a set value, the load of a corresponding round is shed. The master station is composed of an acquisition server and a workstation, wherein the acquisition server counts the low-frequency and low-voltage load shedding capacity sent by the execution child stations and sends the counting result to the workstation for processing, and the workstation sends low-frequency and low-voltage load shedding indicators to the execution child stations through the acquisition server. The dynamic characteristics of the system can be accurately grasped, electrical safety accidents can be avoided, and accurate shedding of load is achieved.

The invention discloses a smart electric service system, comprising power distribution terminals, a mobile phone APP side and a central processing platform. The system also comprises a service application layer based on the central processing platform. The service application layer comprises an operation monitoring center, a global alarm center, an operation and maintenance service center and a report management center. All of the power distribution terminals, the mobile phone APP side and the service application layer realize two-way communication with the central processing platform. According to the smart electric service system provided by the invention, the power distribution terminals can collect power parameter data of monitoring points at which the power distribution terminals are located and send the data to the central processing platform; the central processing platform realizes operation monitoring, global alarm, operation and maintenance service and report management through functions of the service application layer; according to the mobile phone APP side, energy consumption and service functions can be realized; a user can check condition such as own power consumption quantity, load and electric charge; and an overhaul inspector can carry out real-time order reception and process various urgent repair orders and inspection task orders.

The invention discloses an outdoor electric vehicle charging pile. The outdoor electric vehicle charging pile comprises a charging pile body. Two arc-shaped connecting plates are fixedly arranged on the charging pile body, the ends of the connecting plates are connected with an extension part A and an extension part B, clamping parts matched with spherical clamping space are arranged at the two ends of a display panel, and a display screen is fixed into the charging pile body. A charging jack comprises a shell and a cover plate, a baffle is arranged at the bottom of the movable end of the cover plate, clamping seats matched with clamping columns and a limiting block capable of being matched with the baffle are correspondingly arranged on the shell, dovetail grooves are formed in the limiting block, and two elastic stand bars with the trapezoidal sections are installed at the ends of the baffle. The spherical clamping space formed between the extension part A and the extension part B is matched with the clamping part at the end of the display panel, multiple meshed-tooth-shaped sealing faces are formed at the joint, seamless connection between the display panel and the connecting plates is achieved, and the situation that an interface of the display screen of the charging pile is blurry on the road segments with serious dust pollution is avoided.

The invention relates to a high-voltage breaker on-line detection system and method. The system comprises a sensor module, a first switch power supply, a second switch power supply, a central processing circuit and a host computer. The sensor module is arranged inside the control box of a high-voltage breaker and connected with the central processing circuit. The first switch power supply is connected with the central processing circuit. The central processing circuit is wirelessly connected with the host computer. The second switch power supply is connected with the host computer. The high-voltage breaker on-line detection system and method can detect the loop circuits inside the high-voltage breaker in a real-time manner when electric power equipment is on. The electrical parameters of the high-voltage breaker during opening or closing processes can be acquired. The running state of the high-voltage breaker can be judged. Electric power safety accidents caused by faults of the high-voltage breaker can be effectively prevented.

The invention discloses an intelligent power utilization safety early warning and protection cloud system. The system comprises an electric device, a plurality of data collection terminals, a wirelessdata collector, a cloud server and a mobile device; the output end of the electric device is connected with the input ends of the data collection terminals, and the output ends of the data collectionterminals are connected with the input end of the wireless data collector through RS485 cables. According to the intelligent power utilization safety early warning and protection cloud system, an electrical safety monitoring device with relatively high monitoring precision is adopted and is arranged on equipment such as a power transformer and a temperature sensor; main factors (wire temperature,current, leakage current and the like) causing electrical fire and electric shock are subjected to real-time on-line monitoring and statistical analysis, and potential safety hazards (such as abnormal cable temperature, overload, leakage current overrun and the like) existing in an electrical circuit and electrical devices are found accurately and timely. Early warning information is sent to enterprise management personnel in time to remind a user to check and process in time.

The invention discloses a method for identifying a partial discharge mode of a transformer. A three-dimensional spectrogram and a two-dimensional spectrogram that are used for studying a partial discharge PRPD mode are generated; partial discharge characteristic parameters are extracted from the spectrograms; on the basis of a clustering analysis, division of modes to which partial discharge characteristic parameter classes belong is carried out; and then dissimilarity degrees of the characteristic parameter classes are compared by using an artificial neural network to determine a partial discharge mode, and an identification case database is obtained. According to the invention, on the basis of combination of the clustering analysis method and the artificial neural network, the method for constructing a partial discharge characteristic parameter identification base is created, so that missing of discharge information during the identification and analysis is avoided and the accuracy of diagnosing the partial discharge defect is improved; and thus the potential defect of the transformer can be found out early to avoid occurrence of a power safety accident.

The invention discloses a remote electrical monitoring system which comprises remote electricity monitoring devices, a server, a short message transmit-receive unit and terminal device, wherein the remote electricity monitoring devices are distributed on monitoring points respectively; the server transmits / receives short messages through the short message transmit-receive unit; client side software is installed on the terminal device; the remote electricity monitoring device are connected with a power line on the monitoring points, and are in wireless connection with the server; the terminal device is used for querying the electricity parameter of each monitoring point and setting an overload parameter and a communication number according to the client side software; the server is used for sending an alarm short message to the communication number through the short message transmit-receive unit when the electricity parameter fed back by the remote electricity monitoring device exceeds a pre-warning value, and sending a power-off instruction to the remote electricity monitoring device when the electricity parameter fed back by the remote electricity monitoring device exceeds a set value.

The invention belongs to the field of electronic elements, and discloses an IGBT module assembly. The IGBT module assembly comprises a cooling plate and an IGBT module fixedly connected onto the cooling plate, wherein the end surface, far away from the cooling plate, of the IGBT module is provided with wiring terminals; the IGBT module comprises a side surface adjacent to the end surface; and the side surface and the cooling plate form a water guide groove. Through enabling the side surface and the cooling plate to form the water guide groove, a large amount of condensed water gathered on the cooling plate is guided by the water guide groove to flow out, the condensed water can be prevented from flowing to the end surface provided with the wiring terminals of the IGBT module, a condition of an inter-electrode short circuit between wiring terminals on the IGBT module can be avoided, and happening of an electrical safety accident can be prevented. The IGBT module can work safely and efficiently in a high-power cooling situation, and the application field of the IGBT module is expanded.

The invention discloses an electric vehicle charging pile comprising a charging pile body. Two arc-shaped connection plates are fixed on the charging pile body; the ends of the connection plates are connected with an extension part A and an extension part B; clamping parts matched with spherical clamping space are arranged at the two ends of a display panel; and a display screen is fixed into thecharging pile body. A charging jack comprises a shell and a cover plate; a baffle is arranged at the bottom of a movable end of the cover plate; clamping seats matched with clamping columns and a limiting block capable of being matched with the baffle are correspondingly arranged on the shell; dovetail grooves are formed in the limiting block; and two elastic stand bars with the trapezoidal sections are installed at the ends of the baffle. The spherical clamping space formed between the extension part A and the extension part B is matched with the clamping part at the end of the display panel,multiple meshed-tooth-shaped sealing faces are formed at the joint, seamless connection between the display panel and the connecting plates is achieved, and the situation that an interface of the display screen of the charging pile is blurry on the road segments with serious dust pollution is avoided.

The invention belongs to the technical field of electrical equipment, particularly relates to a liftable electrical plugboard, and aims to solve the technical problem that plugs cannot be plugged intotwo jacks at the same time due to the fact that the sizes of the plugs of an existing plugboard are possibly too large, and the liftable electrical plugboard comprises a shell, one side of the shellis fixedly connected with a connecting bus, a plurality of wiring grooves are fixedly connected to the top end of the shell, a connecting plate is fixedly connected to the top ends of the wiring grooves, an arc-shaped opening is formed in the surface of the connecting plate, an L-shaped plate is arranged at the arc-shaped opening of the connecting plate, sliding plates are fixedly connected to thebottom ends of the two sides of the L-shaped plate, and clamping plates are fixedly connected to the bottom ends of the sliding plates. A first inserting hole and a second inserting hole are formed in the top end of the connecting plate and the top end of the L-shaped plate respectively, and connecting grooves are formed in the positions, below the first inserting hole and the second inserting hole, of the clamping plate. According to the invention, through the arrangement of the L-shaped plate, after the plug is inserted into the plugboard, the plug and the connecting piece thereof are integrally lifted, so that the utilization space of the surface of the plugboard is improved, and convenience is brought.

The invention provides an interlocking mechanism which is applied in the technical field of high-voltage switch equipment. A grounding switch (3) is arranged in a switch cabinet, the interlocking mechanism comprises a ground rod (4), one end of the ground rod (4) is connected with the grounding switch (3), the other end of the ground rod (4) is movably connected with a connecting rod (5), the other end of the connecting rod (5) is movably connected with a side plate (1) of the switch cabinet, an interlocking piece (6) is arranged on a rear sealing plate (2) of the switch cabinet, a groove (7) is formed in the interlocking piece (6), and one end, connected with the side plate (1) of the switch cabinet, of the connecting rod (5) is provided with a movable piece (8). According to the interlocking mechanism, the structure is simple, when the grounding switch is switched on, the interlocking for the rear sealing plate of the switch cabinet can be achieved, the rear sealing plate of the switch cabinet is prevented from being opened, and when the grounding switch is switched off, the interlocking for the rear sealing plate of the switch cabinet can be released, so that when operating personnel conduct detection operation to the switch cabinet, the operation can be conducted under a safe environment.

The invention discloses an intelligent grounding wire storage box. The intelligent grounding wire storage box comprises a box body, movement wheels, a box cover, folding pull rods, warning lamps and reverse trigger switches. The box body is hinged to the box cover. The folding pull rods are connected to the box body. The movement wheels are arranged at the bottom of the box body. The interior of the box body is segmented into multiple independent spaces through multiple vertical partition plates. A bottom plate is arranged at the bottom of each independent space. The corresponding reverse trigger switch used for controlling the corresponding warning lamp is arranged at the bottom of each bottom plate. By means of the intelligent grounding wire storage box, electric power security accidents caused by the fact that grounding wires are left out by workers are prevented, no extra operation steps are needed in the use process, operation is easy, the warning effect is obvious, and an obvious and direct warning effect is achieved for preventing unnecessary electric power security accidents; and furthermore, the storage box is designed to be in the form of a luggage draw-bar box and is quite convenient to carry and transport, and the physical power transportation of the workers is greatly relieved.

The invention discloses an anti-collision buffering electrombile battery box structure which comprises a box body and a box cover, wherein arc-shaped anti-collision buffering beams are arranged on two side surfaces of the box body; half-suspended type connecting plates are arranged on two side peripheries of the box body; vacuum cavity heat evening plates are mounted on the inner walls of the box body; a sealing rubber strip is arranged between the box cover and the box body; the box cover is connected with the box body through safety buckles. Under the condition that a battery box is simply and conveniently connected and mounted and the strength, the rigidity and the heat radiation of the box body are ensured, collision force can be buffered through the arc-shaped anti-collision buffering beams, the energy can be absorbed, and the battery box can be uniformly stressed, so that the collision security of the battery box can be ensured, and electric security accidents caused by damage of the battery box can be avoided.

The invention discloses a sign special for an air switch. The sign includes an upper clamp part, a lower clamp part and a spring for connecting the upper clamp part and the lower clamp part. The upperclamp part includes an upper clamp head and an upper clamp tail; an anti-skid rubber pad is arranged on the contact surface of the upper clamp head and the air switch, public signs are arranged on the outer surface of the upper clamp head, the lower clamp part includes a lower clamp head, a lower clamp tail and an anti-switch-off baffle, an anti-skid rubber pad is arranged on the contact surfaceof the lower clamp head and the air switch, and the anti-switch-off baffle is arranged on the inner side of the lower clamp head and at the position of an operation handle corresponding to the air switch for fixing the operation handle so that the air switch can be prevented from being switched off. The sign can solve the problem that it is difficult for the air switch to hang the sign and the indication directions of markers are not clear, and the sign has the advantages that the occurrence of electric power safety accidents is avoided to a large extent, hidden safety hazards caused by humanmisunderstanding are eliminated, disassembly is easy, the sign is convenient to use, and the application range is wide.

The invention discloses an equipment cabinet convenient for circuit arrangement, mainly solving the problem of inconvenience in arrangement during mounting of existing equipment cabinets due to disordered internal circuits. The equipment cabinet comprises a housing, a frame, separation plate holding pieces and separation plates. Cabinet doors are arranged on four side faces of the housing respectively. The frame arranged in the housing is used for supporting the housing. The separation plate holding pieces are arranged on the frame, and the separation plates are placed on the separation plate holding pieces. The frame comprises four parallel stand columns in rectangular arrangement, connecting rods and annular grooves, wherein the connecting rods are arranged at the bottom ends and the top ends of the stand columns and are connected with every two adjacent stand columns, and the annular grooves are formed in the stand columns. Each separation plate holding piece comprises a fastening piece, protrusion pieces, bolt fixing holes, a bolts and a nut, the fastening pieces are fastened to the stand columns, the protrusion pieces are arranged on the inner surfaces of the fastening pieces and are matched with the annular grooves, the bolt fixing holes are formed in the fastening ends of the fastening pieces, and the bolts and the nuts are used for fixing the fastening pieces to the stand columns through the bolt fixing holes. The equipment cabinet has the advantages of adjustability in gaps among the separation plates in the cabinet, convenience in circuit arrangement and the like.

The invention provides a humidifier and a fog-out mechanism thereof. The fog-out mechanism comprises a fog-out cover with a cavity. A fog-out hole and a fog-in hole are formed in the fog-out cover, the fog-out hole and the fog-in hole communicate, and the axis of the fog-out hole is obliquely relative to the central axis of the fog-out cover, so that it is guaranteed that fog ejected from the fog-out hole is oblique, accordingly the fog ejected from the fog-out hole does not fall on the top of the humidifier, the water accumulating phenomenon is not liable to occur on the top of the humidifier, the situation that accumulated water goes deep into the interior of the humidifier can be prevented, and an electrical safety accident is eliminated. Meanwhile, the oblique fog ejected from the fog-out hole can further increase the humidifying range of the humidifier, so that using of the humidifier by users is facilitated.

The invention discloses a base station external power grid capacity increasing and voltage stabilizing system and method. A power grid end, a power supply line and a base station end are connected insequence. The system comprises a structure I or a structure II; according to the first structure, a boosting module is connected between the power grid end and the power supply line in series; and according to the second structure, a boost module is connected in series between the power grid end and the power supply line, and a buck module is connected in series between the base station end and the power supply line. The boost module comprises one or more boost unit for outputting different gear voltages and one or more change-over switch, and the change-over switch controls the correspondingboost unit to be connected with or not connected with the power supply line. Voltage stabilization and capacity increase transformation is carried out without changing an existing external power gridline structure, the structure 1 ensures the working stability of base station equipment, and the power supply efficiency is improved; and the second structure can perform capacity increasing and voltage stabilizing transformation on an existing power supply network. The boost units with different voltage gears can be switched for boosting according to the amplitude change of the base station load,so that the base station load is prevented from overvoltage damage.

The invention discloses a novel charger transformer, which structurally comprises a shell, bolts, a series parallel flow device, a capacitor and reinforcing ribs. The novel charger transformer has thefollowing beneficial effects: the problem is solved by structurally arranging the series parallel flow device, a series adjustment type current adjusting element is connected in series between an unstable input voltage end and a stable output voltage end, and the output voltage is kept unchanged through the change of the equivalent resistance; a special elastic structure of a trigger column is driven by pressing to change the number of current interactions, and the output voltage of the current is changed according to different numbers of current interactions; the emergency stop of the deviceis controlled by a brake to prevent the current from being unstable; and through a series current, the voltage of the transformer can be equal to the voltage of an electronic product to which the transformer is applied, and electrical safety accidents caused by excessive heating of the electronic product are avoided.

The invention discloses a multifunctional electric vehicle charging pile, which comprises a direct-current charging device, a control box and a shell. A line concentration pipe is mounted on the lowerside of the direct-current charging device, and a voltage stabilizer is mounted on the surface of the line concentration pipe; a control screen is mounted on the surface of the control box, and a function button is mounted on the right side of the control screen; an alternating-current charging device is mounted in the shell, and a transformer is mounted on the upper side of the alternating-current charging device; an alternating-current charging head is mounted on the right side of the shell, and a direct-current charging head is mounted on the left side of the alternating-current charging head; a display screen is mounted on the surface of the shell, and a card swiping inductor is mounted on the lower side of the display screen; a data line interface is formed in the surface of the shell, and a loudspeaker is mounted on the lower side of the data line interface; and a base is mounted on the lower side of the shell. Through a storage battery and a circuit breaker which are mounted onthe upper side of the base, the safety protection effect on a charging circuit can be achieved, influences on the multifunctional electric vehicle charging pile due to overload operation are avoided,and the charging efficiency of the multifunctional electric vehicle charging pile is improved.

The invention discloses a two-lock one-key locking structure for a box-type transformer substation low-voltage incoming line switch and a power generation vehicle chamber, and the structure comprisesa box-type transformer substation low-voltage cabinet and a key, wherein the side part of the box-type transformer substation low-voltage cabinet is provided with a box-type transformer substation power generation vehicle access chamber, and a frame circuit breaker of the box-type transformer substation low-voltage cabinet is provided with a first locking lockhole; a chamber door of the box-type transformer substation power generation vehicle access chamber is provided with a second locking lockhole; and the key can be inserted into the first locking lockhole or the second locking lockhole. The invention further discloses a locking method of the locking structure. The structure provided by the invention can prevent a quick access plug of the power generation vehicle from being inserted into a socket in the power generation vehicle quick access chamber of the box-type transformer substation to cause electrical safety accidents under the condition that the low-voltage side frame circuitbreaker switch of the box-type transformer substation is not switched off. Personal safety accidents caused by electrification of a transformer and a high-voltage cabinet due to mistaken closing of amain incoming line switch of the low-voltage cabinet when the transformer or the high-voltage cabinet in the box-type transformer substation is overhauled under the condition of power supply of the power generation vehicle are prevented.

The invention discloses a high-voltage switch lightning arrester structure and an installing method thereof. The high-voltage switch lightning arrester structure comprises a voltage transformer installing plate, a voltage transformer, a conduction pad block, a conducting touch arm, a fuse and a high voltage lightning arrester, wherein the voltage transformer is arranged on the voltage transformer installing plate; the conduction pad block is arranged on the voltage transformer installing plate; the conducting touch arm is connected with the conducting pad block; one end of the fuse is connected with the conducting pad block; the other end of the fuse is connected with the voltage transformer; the high voltage lightning arrester is arranged on the installing support frame; the high voltage lightning arrester is connected onto a hand trolley grounding device through a grounding bar. The defect of the power failure electric safety accidents of the whole section of bus due to lightning arrester damage is solved; the safe and reliable operation of electric equipment is ensured.

This invention discloses an automatic fixed-time power off socket, comprising a power supply plug (1), a switch (2), a timer (3), a universal charging plug (4), and socket jacks (5). The automatic fixed-time power off socket is characterized in that the switch (2), the timer (3), and the socket jacks (5) are positioned on the socket panel; and one end of the socket is provided with a power supply plug (1) and the other end is provided with a universal charging plug (4). The beneficial effect is that the automatic fixed-time power off socket is environmental-friendly and safe in use, and can prevent security incidents caused by overcharging and save the excess electricity after a full charge.

The invention particularly relates to a moving-prevention alarm device of an electric power barrier and belongs to the field of electric power technologies. The moving-prevention alarm device of the electric power barrier comprises a displacement sensor, a signal processing module, an alarm information processing module, an alarm information receiver, a positioning information wireless emitter and a sound alarm device body. The displacement sensor is connected with the alarm information processing module through the signal processing module, and the other end of the alarm information processing module is respectively connected with the positioning information wireless emitter and the sound alarm device body. The moving-prevention alarm device has the advantages that when a person arbitrarily moves the electric power barrier, the moving-prevention alarm device of the electric power barrier will emit an alarm signal at the first time, and meanwhile the positioning information wireless emitter gives an alarm to an electric power construction department through the alarm information receiver; in this way, the situation that because the electric power barrier is arbitrarily moved, electric power accidents occur can be greatly reduced, the electric power safety accidents can be eradicated, and the personal safety of staff can be guaranteed.

The invention discloses a novel substation safety intelligent control system based on an indoor environment. The novel substation safety intelligent control system comprises an environment control system, and a fresh air system, an automatic drainage subsystem, a fireproof explosion-proof subsystem, a safety early warning system and a plurality of sensors which are mounted in a substation room and connected with the environment control system. The system has remote communication and monitoring functions, and in the era of unmanned management of more and more transformer substations, by using the system, related personnel can more conveniently and easily query environment information of corresponding transformer substations, and can receive alarm signals of various abnormal conditions in the first time and take processing measures in time.