2391results about "Switchgear" patented technology

A racking apparatus 10 is provided for remotely inserting into and removing an industrial electric circuit breaker from a cell housing. The racking apparatus includes a housing having a base 12 and a frame 14 extending upwardly from the base. A Wheel structure 20, 22, 24 is coupled to the base to permit wheeled movement of the housing. A motor mount structure 32 is coupled to the frame for generally vertical movement toward and away from the base. An electric motor 34 is mounted to the motor mount structure. The motor has a shaft 35 and an adaptor structure 36 is operatively associated with the shaft. The adaptor structure is constructed and arranged to be coupled to a circuit breaker. Actuating structure 40 is associated with the motor mount structure to cause the generally vertical movement of the motor mount structure. A controller 56 is carried by the housing for controlling the motor and the actuating structure. A control station 62 is operatively associated with the controller to operate the controller at a location remote from the apparatus.

The invention discloses a robot used for intelligent substation patrol, comprising a moving car as a vehicle; the front part of the moving car is provided with a navigation system; the moving car is provided with a power supply, an electronic element enclosure, a mechanical arm and an information processing system; wherein, the mechanical arm is arranged on a cabin on the upper part of the enclosure and is mainly composed of a basic arm, a median arm and a forearm; the basic arm has two degrees of freedom including axial movement and circumferential rotation and has a cavity inside; the median arm has a moving pin shaft which can operate along the cavity so as to ensure that a body shrinks into the cavity and has one rotational degree of freedom around the moving pin shaft when extending out of the cavity; the forearm is arranged at the end of the median arm via a pin shaft; the cross section of the cavity is larger than the cross sections of the median arm and the forearm under folding state. The robot based on the technical proposal of the invention has high degree of functionalization and high safety.

The invention discloses a patrol-robot-based comprehensive parameter detection system for substations. The system is characterized by comprising a base station system area and at least one mobile station system area. The base station system area is connected with the mobile station system areas by wireless communication. The invention further discloses an inspection method using a patrol robot. The system is capable of detecting comprehensive substation parameters. The patrol robot is capable of effectively communicating with a control center at any inspection site and communicating with the control center to receive commands and return information. The inspection method is quite humane and intelligent to operate, and the patrol robot is capable of undertaking various emergent inspection tasks.

The invention discloses a transformer substation inspection robot system for detecting equipment in a box and a method thereof. The transformer substation inspection robot system comprises a robot and an automatic unlocking system installed outside the box. The automatic unlocking system comprises an electromagnetic lock and a control device. The control device comprises a single-chip microcomputer, a wireless communication module, an electromagnetic relay, a door-closing limiting switch and an alarm module. The automatic unlocking system is installed on a box door. The control device is installed in a lock body. The electromagnetic lock can be remotely controlled to be opened or closed by the robot and can also be manually opened or closed through a key. Through communication with the automatic unlocking system, the box lock can be automatically opened, and therefore detection and operation of the equipment in the box can be realized; the automatic unlocking system is compatible with a common key unlocking mode, and therefore an automatic robot inspection mode and a traditional manual inspection mode can coexist; a robot pan-tilt is provided with a lifting mechanism, and therefore the range of the equipment capable of being detected by the robot is greatly expanded.

The invention relates to a transformer substation inspection robot global path planning method based on magnetic navigation. The method comprises the steps of: modeling an environment of a transformer substation to form a topology network graph and a connecting relationship matrix; determining a searching path matrix, namely the shortest path matrix, by using a Floyd algorithm, and increasing the computing speed by iterative optimization; computing the shortest connecting path between an initial point and a target point sequence by transversing nodes and edges; converting the shortest connecting path into a travel path indicated by an RFID (radio frequency identification device) sequence; and computing the rotating angle of a robot at each RFID at an intersection according to the connectivity of the path. The transformer substation inspection robot adopting the transformer substation inspection robot global path planning method provided by the invention is short in travel path, and rapid to be in place for detection, therefore, the energy of batteries is saved, and simultaneously the time for moving the robot equipment for verification after the operation of the transformer substation equipment can be effectively saved.

The invention discloses a method for identifying the mode of a switch of a substation based on infrared detection. The method comprises the following steps of: 1, inputting an image to be identified, acquiring a switch area of the image by image registration, and sequentially graying, binarizing and thinning the switch area; 2, linearly detecting the image of the thinned switch area by using a Hough transformation algorithm; and 3, determining a detection result, and identifying the state of the switch by using a switch state determination condition. An H matrix between two images is obtainedby matching of the features of scale invariant feature transform (SIFT), the switch area in the image is found, and then the state of the switch is identified. Experiments show that: by the method, the problem of identification of a power switch can be effectively solved; an important significance is provided for automatic monitoring of the power equipment of an intelligent substation; the burdens on an inspector of the substation can be reduced; and detection efficiency is greatly improved.

The invention relates to a maintenance car of handcart type breaker equipment. The maintenance car comprises a carframe, a braking mechanism, a bearing suspension mechanism, a guide rail lifting device and a clamping device, wherein the carframe comprises two supports, an upper beam and a lower beam; the upper and lower beams are fixed at the back parts of the two supports respectively; the back part of each of the two supports is provided with an upright guide rail with an opening; the openings of the upright guide rails are opposite; a driving gear shaft is arranged at the back part of the carframe; the braking mechanism is arranged on the carframe; two vertically-arranged racks of the bearing suspension mechanism are respectively connected with connecting plates; driving gears at the two sides of the driving gear shaft are meshed with the two racks; idler wheels at the side parts of the connecting plates are arranged in the two upright guide rails of the two supports; guide rail shafts are fixed on the two connecting plates; fixed guide rails are fixed on the guide rail shafts; movable guide rails are sheathed on the guide rail shafts and can move axially; and the guide rail lifting device and the clamping device are arranged on one of the supports. The maintenance car can be used for maintaining the handcart type breaker equipment safely and reliably in field, is convenient in the operation and can improve the maintenance working efficiency.

The invention discloses an animal driving device for a transformer substation, which comprises a central processing unit, a microwave induction unit, an ultrasonic playing control unit, a power amplification unit and an acoustic wave output load, wherein a signal output end of the microwave induction unit is connected with a signal input end of the central processing unit; a control output end of the central processing unit is connected with a control input end of the ultrasonic playing control unit; and after being amplified by the power amplification unit, ultrasonic signals emitted by the ultrasonic playing control unit are outputted by the acoustic wave output load. In the animal driving device, a double driving means of ultrasound and sound that frightens animals is adopted to drive the animals, so that the animals are kept far away from electrical equipment, and the safety of the electrical equipment is ensured; animal types are judged by a microwave induction device, ultrasonic waves with different frequencies are generated according to different types, and thus the animal driving device has the pertinence. The animal driving device reduces careless omission caused by the conventional mode and improves security coefficients. In addition, the invention also discloses an animal driving method for the transformer substation.

The invention discloses a safe assembly and disassembly device for high-voltage grounding wires, and belongs to the field of grounding wire assembling equipment in a power grid. The assembly and disassembly device comprises an insulated hollow insulation sleeve, a chuck, a pull rod and an operating trigger, wherein the chuck is arranged inside one end of the insulation sleeve; the operating trigger and a return spring of the operating trigger are arranged at the other end of the insulation sleeve; the pull rod connecting the chuck with the operating trigger is arranged inside the insulation sleeve; the chuck comprises a fixed joint, a fixed sheet and claws; the fixed joint is hollow; the triangular fixed sheet is arranged at the end part of the fixed joint; the three open-close type claws are articulated with three edges of the fixed sheet respectively; and the other end of the fixed joint is connected with the pull rod. The assembly and disassembly device is simple in structure, safe and reliable to operate, can improve the assembly and disassembly efficiency of the grounding wires, and can solve the problems of high-altitude falling of the grounding wires, and difficult operation due to rotating of the grounding wires with a brake pull rod in assembly and disassembly processes.

The invention provides a method and device for maintaining power transmission and transformation equipment. The method comprises the following steps of: acquiring data required by equipment maintenance decisions, such as equipment state quantity index warning information data acquired from a monitoring warning layer, state evaluation result data acquired from a state evaluation layer, fault diagnosis result data acquired from a fault diagnosis layer, risk evaluation result data acquired from a risk evaluation layer, maintenance decision suggestion data generated by a maintenance policy layer and external constraint conditions; and carrying out decision analysis on the acquired data, establishing an equipment state maintenance policy model, optimizing maintenance sequence, maintenance time and maintenance grade of the power transmission and transformation equipment, and determining equipment maintenance property as well as arranging a maintenance decision plan. By using the method and device, key equipment faults and unnecessary maintenance operations can be avoided by timely maintenances, and the optimal distribution and use are searched in limited maintenance cost, thus effectively saving manpower and material resources.

A rack for a switchgear cabinet, whereby the rack is assembled from frame legs, four of the frame legs being horizontally oriented forming a lower rack frame, which is connected to support profiles for bottom plates. The support profiles form a bottom frame (30), which has upward projecting fastening straps (50, 52). The frame legs (12 to 14) of the lower rack frame (11) have vertically aligned inner profile sides (21), which are provided with recesses (26) in the area of their lower edges (23) and of the adjoining profile sides for introducing the fastening straps (50, 52), and the fastening straps (50, 52) are screwed in place, resting on the inside of these inner profile sides (21) of the lower rack frame (11).

The invention discloses a transformer accessory replacing method comprising the following steps of: (a) connecting a transparent plastic hose on a transformer casing gas relay to serve as an oil level pipe, wherein the length needs to be higher than the height of a body oil conservator so as to observe the actual oil level; (b) connecting a hose on a transformer body to an exhaust valve on the oil conservator and connecting the middle with a vacuum pump; (c) when oil is pumped, closing the valve between the oil conservator and the body; (d) observing the oil level of the oil level pipe when the oil is pumped, and stopping the vacuum pump when the oil level is lower than replaced components; and (e) after the component is replaced, opening the valve between the body and the oil conservator to discharge the oil. The method does not waste insulating oil in the transformer and reduces a series of work of cleaning oil storage equipment, oil stain and the like, thereby increasing the work efficiency.

An intelligent control system of a magnetic navigation polling robot relates to a robot used for polling operation of a transformer substation. The system is characterized in that a database storage system, a man-machine interactive system and a robot moving control system are combined to form a control center which controls the robot to conduct polling and detecting through a wireless communication system, finally an intelligent collection system transmits detected data information back to the control center through the wireless communication system, wherein the database storage system, the robot moving control system, the wireless communication system and the intelligent collection system are combined to achieve the intelligent control system of the robot. The polling robot can replace manpower to finish polling operation of high voltage power transformation equipment of the transformer substation. The robot adopts magnetic navigation with the navigation accuracy within 5mm. The system adopts a crawler-type walking structure, has strong adhesion to the ground and can walk stably on the ground covered with snow just like walking on the ground.

The invention discloses an omnibearing ground-space isomeric substation polling system, belonging to the field of substation polling system design. The technical scheme is that the system comprises a ground polling moving robot subsystem, a space poling flying robot subsystem, a monitoring center and an energy supply depot, wherein the ground polling moving robot subsystem, the space poling flying robot subsystem and the monitoring center are connected together through wireless signals. According to the system, robots are combined to carry out the substation polling, a polling angle is flexible, sight is comprehensive, so that a labor resource is saved, polling difficulties under severe geographical condition and meteorological environments are reduced, polling convenience time is shortened, daily examination efficiency is improved, and a situation of false judgment and maloperation when an independent robot is used for polling is solved; and the system is not only applicable to polling of a substation, and can be expanded to be used for searching and polling of more fields.

The invention provides a cluster management and control system for a substation inspection robot. The inspection robot can transfer among multiple substations through the transportation of an inspection deploying vehicle, so that one inspection robot can be used for inspecting multiple substations; the inspection robot is connected with an inspection deploying vehicle monitoring backstage through a wireless local area network; the inspection deploying vehicle monitoring backstage can receive the inspection data in real time so as to monitor the instantaneous state of the substations; the wireless local area network can be transferred along with the transfer of the inspection deploying vehicle, so that the wireless local area network can be applied to multiple substations without requiring to rebuild a network in each substation; the network delay of the wireless local area network is relatively low, so that the real-time substation monitoring can be realized; the inspection deploying vehicle monitoring backstage is connected with a remote centralized control backstage through a special network, so that the overall network environment is safer; meanwhile, the centralized management and control of multiple substations can be realized simultaneously; and furthermore, the resource utilization ratio is improved due to the manner that one inspection robot is used for inspecting multiple substations.

The invention discloses a substation inspection robot-based circuit breaker state template-matching identification method, wherein a substation inspection robot is used for automatically acquiring an image of a circuit breaker, and a template matching method is used for identifying the state of the circuit breaker. The method comprises the following specific steps: respectively extracting areas where characters of open and close are positioned as templates by using the template matching method, and carrying out matching on follow-up shot images; carrying out image segmentation on the open template, the close template and matched windows by using maximum between-cluster variance method (OTSU method) to obtain binary images which contain targets and backgrounds; and comprehensively judging the final state of the circuit breaker based on the difference degree between the templates and the targets of the matched windows. Proved by experiments, the method disclosed by the invention has the advantages of fast processing speed, high reliability, no misjudgment on given open-close conclusion and capability of satisfying with the requirements of real time and high reliability for field inspection.

A compartmental transformer and a method maintenance therefor is provided. The transformer includes a first compartment housing first equipment electrically coupled to the high voltage side of the transformer and a second compartment housing second equipment electrically coupled with the low voltage side of the transformer. The transformer further includes a maintenance compartment, separate from the first and second compartments, for housing a plurality of maintenance devices used for servicing the transformer while the transformer is energized. The method includes co-locating and securing preventative maintenance devices in one secured compartment remote from a voltage at or above a level corresponding to the lower of the voltages of the primary or secondary sides of the transformer, maintaining the transformer in an energized state, opening the secured compartment, and performing preventative maintenance tasks on respective preventative maintenance devices while the transformer is maintained in the energized state.

The invention discloses a method for calculating a repair cycle of a power transformer in operation. The method has the advantages that: influence of failure-rate level and a repair time interval on the residual life cost of the power transformer is fully considered, a reasonable repair cycle is determined, and equipment management cost is reduced. The method comprises the following steps of: firstly, establishing a power transformer failure rate and average no-failure operation time estimation model on the basis of operating reliability data of equipment; secondly, according to a calculation result of the estimation model, establishing an in-operation power transformer residual life cost model for comprehensively considering the failure-rate level of the equipment and the repair time interval, and classifying the residual life cost into operating cost, repair cost, failure cost, failure loss, operating period indirect cost and disposal cost according to operation type; and finally, with the aim of optimizing the residual life cost, calculating a suggested time interval of the repair cycle of the power transformer.

A frame piece for a rack of a switching cabinet. With minimum material an optimum result is obtained with regard to fastening planes and fastening direction as well as stability. A profile inside and a profile outside are used to form the frame piece as a closed hollow profile with one or two longitudinally directed hollow spaces. The profile outside delineates a free space to an outside corner edge of the rack. The profile inside has a profile section with several rows of fastening seats or several profile sections at an angle with respect to one another with at least one series of fastening seats. The profile inside and the profile outside form outside edges in a region of the right-angled abutting outsides of the rack. The outside edges are designed as double-layer sealing struts or connected to them in a direction to the outside corner edge connecting struts with or without receiving grooves for sealing elements.

The invention provides a reliability-based maintenance decision method for switch equipment. According to the invention, a reliability-based maintenance decision method for switch equipment of an electric system is developed aiming at the defects of the traditional maintenance decision method for the switch equipment. The reliability-based maintenance decision method comprises the following steps of: analyzing the aging condition of the switch equipment and sending a maintenance prewarning by applying a reliability maintenance theory; analyzing the failure consequence seriousness level of the switch equipment, carrying out importance quantitative evaluation on switch equipment components to be maintenance by combining historic operation statistical data of the switch equipment and sequencing an equipment set to be maintained by utilizing the historic statistical fault rate, the voltage level and the importance weight value of the equipment; and adjusting the maintenance decision sequence of the equipment set to be maintained by an associated switch search method, and establishing a maintenance capability restriction and weather restriction-considered maintenance schedule decision method for the switch equipment according to the maintenance decision sequence and by taking deficient power supply volume as an optimization goal.

The invention provides a transformer substation operation safety management and control system based on a computer vision locating technology. The transformer substation operation safety management and control system based on the computer vision locating technology comprises an image information collecting device, an image identifying device, a location engine server and a background master station management system, wherein the location engine server receives and processes image location information, and the background master station management system processes actual geographical location information of a target and compares the actual geographical location information of the target with a stored safe range and management area location information to confirm whether the target is in a set safety range and a task area or not. According to the transformer substation operation safety management and control system, activity situations are automatically monitored in real time and recorded, pre-warning is given out timely and record is carried out timely when dangerous activities and tendencies are encountered, and therefore statistic analysis is carried out on activity routines afterwards, the occurrence of safety accidents is avoided, and working efficiency and a management level of a whole transformer substation and an electric power company are improved to a large extent. The transformer substation operation safety management and control system based on the computer vision locating technology farthest reduces influences of human factors by adopting technological means, and effectively eliminates blind angles of transformer substation safety management.

The invention discloses a debugging method for transformer substation equipment, and aims to solve the technical problem about reduction in the cost of the transformer substation equipment. The debugging method for the transformer substation equipment provided by the invention comprises the following steps of: establishing network communication between debugging equipment and the transformer substation equipment; sending the operating information of the transformer substation equipment to the debugging equipment by the transformer substation equipment; and transmitting a debugging command of the debugging equipment to the transformer substation equipment. Compared with the prior art, the transformer substation equipment is debugged and operated by adopting the network communication between the debugging equipment and the transformer substation equipment, and utilizing the display screen of the debugging equipment, so that the problem about debugging of the transformer substation equipment without the display screen is solved, the transformer substation equipment provided with the display screen does not need the display screen, and moreover, the cost of the transformer substation equipment is reduced.

The invention discloses a simple transformer hoisting device, and relates to the technical field of installation of electric equipment. The device comprises a fixed pulley and a winch, wherein the fixedly pulley is in rotary connection with the upper portion of a pole through a hoop, a horizontal rotary arm is disposed under the fixed pulley, the rotary arm is fixed to the pole through a hoop, and a steel wire rope of the winch winds from the free end of the fixed pulley and the free end of the rotary arm. The simple transformer hoisting device has the advantages of reducing manpower and materials and being suitable for installation of a transformer of various terrains, safe and quick and low in cost, and tools which are used are convenient to transport.

The invention relates to a special inspection robot for an electric power distribution cabinet. The special inspection robot comprises a fixed rack, wherein the fixed rack comprises a fixed table; four supporting panels are symmetrically welded at the outer side of the upper end surface of the fixed table; the upper ends of the four supporting panels are welded with a ring-shaped circular table; the middle part of the ring-shaped circular table is provided with a circular opening; four L-shaped brackets are symmetrically welded at the inner side of the upper end surface of the fixed table; the upper ends of the four L-shaped brackets are provided with a mounting table through bolts; the four L-shaped brackets are used for mounting and fixing the mounting table; the lower end surface of the mounting table is provided with a drive motor through a motor base; the output end of the drive motor is connected with a drive shaft through a shaft coupler; and the lower end of the drive shaft is mounted on the fixed table through a bearing. The special inspection robot can realize an automatic detection function for power failure of the power distribution cabinet, is adjustable in lifting height, and does not need artificial detection, so that a great number of electricians are saved, no electric shock potential safety hazards exist, and the life safety of the electricians is protected. The invention provides a new way for automatically detecting the failure of the power distribution cabinet.

The invention discloses a secondary safety measure support system in operation and maintenance of an intelligent substation and a construction method. The system comprises an application layer, a service layer and an interface layer, wherein the application layer is used for generating a secondary safety measure in a graphic simulation process and finishing safety isolation of secondary devices and a secondary system; the service layer is used for establishing a secondary system model, simulating and rehearsing the secondary safety measure by utilizing the secondary system, detecting whether the secondary safety measure in the graphic simulation process violates a rule set in advance, and judging the effectiveness of the secondary safety measure; and the interface layer obtains board pressing and loop states from a network analyzer and converts board pressing operation sent by a board pressing state check module into operation information identifiable for an integrated information platform. According to the system, for secondary safety measure establishment, the board pressing and loop states are visually seen and the interoperation relationship of the secondary devices in the whole secondary system can assist operating personnel to establish the secondary safety measure.

The invention relates to a platform car for the installation of an isolating switch mechanism, which comprises a platform mechanism, a car frame mechanism and a lifting mechanism, wherein a transversely moving mechanism of the platform mechanism is installed on a bracket through a longitudinally moving mechanism; two upright posts and a back wheel frame of the car frame mechanism are fixed on a car frame, two front wheels are installed on side beams through a front wheel shaft, two back wheels are connected with the back wheel frame through a back wheel shaft and a back wheel bracket, and flexible brake blocks are installed on the back wheel bracket; an adjusting bracket of an adjusting component is installed on two side beams and a back beam, and an adjusting screw rod on a chassis is screwed in a screw hole of the adjusting bracket; and two bearing seats of the lifting mechanism are respectively installed on an end plate and the back beam, two ends of a lifting screw rod which is screwed on a screw nut seat are respectively installed on the two bearing seats through bearings, an L-shaped worm seat is connected with the end plate, and a worm wheel which is connected with the lifting screw rod is meshed with a worm which is installed on the worm seat. The platform car of the invention can conveniently adjust the installation position of the isolating switch mechanism, can be used safely and reliably, and can improve the installation accuracy and the installation efficiency.

A modular substation feeder assembly comprising a substantially rigid and collapsible support frame is presented. In particular, the support frame of the present invention comprises a plurality of at least two members disposed in a movable or removable relation to one another and structured to dispose the support frame between the collapsed position and into the operative expanded position. The feeder assembly comprises a support stand cooperatively structured to support or house a recloser or circuit breaker. When the support frame is disposed in the collapsed position, the support stand is oriented at least partially within a internal clearance zone which is defined as an area free of electrical components, including insulators, cross bars, etc.

The invention innovatively provides a sweeping and patrolling integrated operation robot used for a transformer substation. The robot comprises a base, a motor-driven walking device, a sweeping and dust sucking device, an ultrasonic distance-measurement unit, an infrared induction detection unit, a monitoring device, an infrared transmitter of an automatic charging device, a CPU (central processing unit) and an alarming device, wherein the motor-driven walking device and the sweeping and dust sucking device are mounted at the bottom of the base; the ultrasonic distance-measurement unit is mounted at the front end of the bottom of the base; the infrared induction detection unit is mounted around the bottom of the base; the monitoring device and the infrared transmitter of the automatic charging device are mounted at the top of the base; the CPU and the alarming device are mounted in the base; the CPU is connected with the motor-driven walking device, the sweeping and dust sucking device, the ultrasonic distance-measurement unit, the infrared induction detection unit, the automatic charging device, the monitoring device and the alarming device respectively. The sweeping and patrolling integrated operation robot integrates sweeping, patrolling, monitoring and prewarning, the operation management level of the transformer substation is improved to the largest extent, the safety degree of the equipment is improved, work efficiency of workers is improved, the maintenance cost is reduced greatly, potential risks are reduced, and the unattended operation of the transformer substation is promoted.

The embodiment of the invention discloses a substation equipment detection system, which comprises a video collection device, a data transmission network, an image recognition device and a power supply, wherein the video capture device is used for collecting video image data of shifting positions of operating parts, video image data of the indication situation of every indicator light, video image data of reading situations of an air chamber pressure gauge, and video image data of the position situations of every operating mechanism connecting rod; the data transmission network is used for transmitting the video image data collected by the video collection device to the image recognition device; the image recognition device is poisoned at an equipment operating room of a remote substation, and is used for displaying an video image according to the video image data and promoting the abnormality of the video image through displaying early warning signals; and the power supply is used for supplying power to the video collection device. The substation equipment detection system can be used for observing various kinds of situations to realize the equipment detection from a long distance, so that the working time of operators of the substation can be saved, and the working efficiency is enhanced.

The invention discloses an automatic navigation snow removing robot system. Automatic navigation control over a robot is achieved through a robot management system software program, and thus the robot can automatically cruise and remove snow. According to the provided snow removing robot which can be well suitable for an ice snow covered pavement and is of a crawler chassis structure, the sufficient ground gripping force under the condition of the ice snow covered pavement can be ensured, and the walking stability is ensured; the robot is higher in obstacle crossing ability and pavement adaptability and more stable in walking; the working pressure of operators on duty in a transformer substation is greatly reduced; all-weather and unattended transformer substation intelligent patrol is achieved in a real sense; and the whole system has the characteristics of high automation degree, automatic mounting of a snow removing shovel, automatic detection of accumulated snow depth, automatic alarm of faults, stable in driving and wide patrol range.