799results about "Switchgear" patented technology

The invention discloses a multi-terminal collaborative modular power operation and maintenance method and system based on digital twinning, and the method comprises the following steps: constructing a global power topological graph of a power energy site, mapping power equipment, sensors and connecting lines into graph nodes and graph edges, and binding the static attributes of the equipment with the topological structure; and acquiring real-time operation data of the power equipment, and distributing a unified time label for the multi-source heterogeneous data. According to the method, a unified twinborn model of cross-voltage class, cross-region and cross-equipment type is established in a digital twinborn platform, and operation data of different equipment such as photovoltaic equipment, battery energy storage equipment, an inverter, a protection device, an electric energy meter and temperature control equipment are expressed in a unified data semantic mode; according to the invention, the system can still automatically establish a consistent device portrait under the conditions of a large number of multi-terminal devices and diversified communication protocols, and the multi-terminal cooperative computing capability is significantly improved.

The invention discloses an automatic wiring method and system of a secondary screen cabinet, a medium and a product, and belongs to the field of automatic wiring of the secondary screen cabinet, and the method comprises the steps: obtaining the design drawing data of the secondary screen cabinet, and extracting the installation position of each component and the insertion starting point and end point of a wiring harness; setting a plurality of bundling middle points for each wire harness based on the positions of the components, and forming a node sequence by combining starting and ending points; generating path fragments for each pair of adjacent nodes in the sequence by adopting a fast exploration random tree connection algorithm with sampling region constraint and an obstacle approaching penalty term; and sequentially splicing all the segments into a complete wiring path, and controlling a wiring device to automatically complete wiring harness arrangement and fixation according to the complete wiring path. By implementing the method, the problems of low efficiency and poor safety of automatic wiring path planning of the wiring harnesses in the secondary screen cabinet in the prior art can be solved.

The invention discloses an operation system, method and equipment of a live working robot with an intelligent distribution network, and a storage medium, and relates to the technical field of intelligent distribution networks of robots, and the system comprises a first man-machine interaction module which supports bidirectional interaction with an operator through voice, characters, images and the like; the second multi-mode sensing module senses the equipment state, the obstacle and the environment change in the working environment in real time through a visual sensor, an auditory sensor, a force sensor and the like; the big language model processes and analyzes the instruction through a natural language and generates a task execution step, and adjusts a task strategy according to the perception data; the decision planning module formulates a task path and resource scheduling in combination with a multi-objective optimization algorithm; the safety monitoring module monitors the safety state in the operation process in real time and triggers early warning; the anomaly detection and processing module receives the early warning information and starts an autonomous navigation and path planning technology; according to the system, autonomous and safe operation of the robot is achieved, and task execution efficiency, adaptability and flexibility are improved.

The invention discloses an internal inspection system and method for oil filling equipment, and the system comprises a non-oil-discharge butt joint device which is in sealed butt joint with a manhole door and forms a sealed channel for an inspection robot to go in and out, and the inspection robot which is in a fish-shaped streamline shape and is provided with a multi-mode sensor group, the data acquisition module is used for acquiring internal structure data when moving in oil in the oil filling equipment; the ground control terminal is arranged outside the oil charging equipment; and the signal transmission module is in communication connection with the ground control terminal, the inspection robot and the multi-mode sensor group so as to receive and process the structural data and send a control instruction to the inspection robot. Accurate sealing butt joint with the manhole door of the oil filling equipment is achieved through the adapter, the cabin door mechanism and the butt joint cabin, opening and closing of the cabin door can be stably controlled through the driving mechanism in the closed space, and insulation oil leakage and external environment interference are effectively blocked. A fish-shaped inspection robot is adopted to adapt to a narrow space and a complex structure in the oil filling equipment.

The invention relates to the technical field of transformer substation intelligent inspection, and discloses a transformer substation automatic inspection device and method.The transformer substation automatic inspection device comprises an inspection robot, a transmission mechanism is movably connected to the inspection robot, a negative pressure adsorption device and a mechanical arm are rotationally connected to the top of the transmission mechanism, and an actuator is rotationally connected to the mechanical arm; an adsorption hose is fixedly connected to the top of the negative pressure adsorption device, the actuator comprises a shell plate, a cleaning brush is fixedly connected to the shell plate, an adsorption cavity is formed in the shell plate, the adsorption cavity is formed in the bottom of the cleaning brush, and a mechanical claw is fixedly connected to the bottom of the shell plate; the inspection robot is provided with an information acquisition module, a model identification module, an upper computer communication module, a dynamic task scheduling module, a multi-source data fusion module and a closed loop verification module; according to the device, air-ground collaborative operation is realized through an intelligent closed-loop inspection process, so that the response time from abnormality discovery to accurate confirmation is greatly shortened, and the accuracy and reliability of defect identification are remarkably improved.

The invention belongs to the technical field of hot-line work, and particularly discloses a complete insulation baffle plate for replacing a disconnecting link load side lead in 10kV hot-line work and a use method, the complete insulation baffle plate comprises a hanging plate, and the hanging plate is of an insulated plane plate-shaped structure; the upper side edge and the lower side edge of the hanging plate are provided with a cross arm hook and a baffle handle respectively. The cross arm hook is used for being matched with a cross arm; one side surface of the hanging plate is provided with a disconnecting link inner side insulating cover; the carrying head baffle is arranged on the side of the hanging plate; the head carrying baffle is bent to be of a C-shaped structure, a second notch is formed in the bottom of the head carrying baffle, the second notch is provided with a disconnecting link outer side insulation cover, and the disconnecting link outer side insulation cover is matched with the disconnecting link inner side insulation cover and used for being matched with a disconnecting link. The disconnecting link shield is bent to be of a U-shaped structure; and the opening end of the disconnecting link shield is matched and connected with the bottom of the carrying head baffle plate. According to the invention, the electrified body and the grounding body can be effectively isolated, the structural stability in the operation process is improved, and the operation time and manpower consumption are reduced.

The invention relates to the field of force-electromagnetic coupling measurement, and discloses a low-voltage electric energy metering box internal arrangement method and system based on a modular mutual inductor plugging structure, and the method comprises the steps: synchronously collecting three-phase module magnetic flux density, base strain field and pre-tightening force time sequence data through deploying a multi-source sensor; a directed weighted hypergraph is constructed to represent a magnetoelastic coupling topology, the topology is converted into a time-varying creep rate matrix through a viscoelastic creep memory operator, a compensation strategy is generated in combination with phase space division and a magnetostriction response tree, and finally an optimization scheme of module spacing and interface rigidity is reversely mapped. By accurately capturing the time-varying mechanical law of the strain field and the pre-tightening force, the problem of time-varying coupling drift of the modular mutual inductor caused by structure-electromagnetic coupling and viscoelastic memory effect is solved, the limitation of traditional static independent calibration is broken through, and long-term stability of three-phase metering precision is achieved.

The invention relates to the technical field of insulating rod auxiliary equipment, and particularly discloses an insulating rod auxiliary fastening method and device. The method comprises the steps that a rotating handle on the insulating rod is clamped through a clamping device, and the clamping device comprises a clamping assembly used for clamping the rotating handle, a transmission assembly used for driving the rotating handle to rotate and an output motor used for controlling starting and stopping of the transmission assembly; controlling an output motor to start, and acquiring a real-time current value of the output motor; when the real-time current value is larger than or equal to the preset current value, the output motor is controlled to be According to the scheme, the clamping device can clamp the rotating handle and drive the rotating handle to rotate, the operation burden of a worker is reduced, the risk that the insulating rod slips out of the hand is reduced, meanwhile, whether the conductor end is clamped by the insulating rod or not is judged by obtaining the real-time current value, the accuracy of judging whether the insulating rod is clamped or not by the worker can be improved, and the working efficiency is improved. The problems that in the operation process, the risk that the insulating rod slips out of the hand is high and the accuracy of judging whether the insulating rod is clamped is low are solved.

The invention discloses an automatic door control device, an electric power cabinet inspection method based on a robot and an electric power cabinet. The automatic door control device comprises a shell, a mounting plate, a driving module, an adjusting module and a connecting rod mechanism. The driving module drives the cabinet door to open and close through the rotating shaft and the linkage. The adjusting module comprises a second triggering piece slidably arranged on the arc-shaped groove of the limiting plate, and the position of the adjusting module is changed through the adjusting piece, so that the opening angle of the cabinet door is preset; a rotating lug on the rotating shaft triggers the first triggering piece when the cabinet door is closed, and triggers the second triggering piece when the cabinet door is opened to a preset angle. The inspection method based on the device comprises the following steps: receiving an instruction through the robot, navigating to the power cabinet, identifying an identity, triggering the adjusting switch through the mechanical arm, wirelessly sending a door opening parameter to control the adjusting module to preset an angle, and then driving the cabinet door to open; and the cabinet door is automatically closed after inspection is completed. The power cabinet integrates the device and the method. According to the invention, flexible adjustability of the opening angle of the cabinet door and automatic intelligent control of the door opening and closing process are realized, the problem of double-cabinet-door interference is effectively solved, and the inspection efficiency and safety of the robot are remarkably improved.

The invention discloses a power grid transformer technical renovation and overhaul time domain interval evaluation method. The method comprises the steps of 1, establishing an evaluation basic data set through multi-source data acquisition and data preprocessing; 2, screening key influence variables, quantifying variable influence weights by adopting regression modeling, and realizing accurate quantification of the health state of the transformer in combination with a TOPSIS algorithm; 3, forming a dynamic fault rate model; 4, constructing a system dynamics-Monte Carlo cooperation model, a fault tree-Bayesian network dynamic and static diagnosis model and a long and short term memory network time sequence prediction model; 5, setting an optimization target and a constraint condition, and outputting an optimal time point and a reasonable time domain interval of technical renovation and overhaul of the transformer by adopting a multi-target optimization solution method; and 6, model evaluation precision is tested back and verified through historical data, and key parameters of the model are subjected to feedback adjustment by adopting a particle swarm optimization algorithm. The method effectively solves the problems that a traditional method is low in evaluation precision, single in target and poor in dynamic adaptability, and is convenient to popularize and use.

The invention provides an AI-driven new energy equipment fault early warning and self-healing method and system, and the method comprises the steps: obtaining multi-source physical data of new energy equipment, carrying out the preprocessing, and extracting a key feature quantity reflecting the health state of the new energy equipment; inputting the key characteristic quantity into a constructed diagnosis model for fault diagnosis to obtain a diagnosis result; if the diagnosis result shows that a fault exists, logic judgment is conducted according to the diagnosis result and a preset intelligent self-healing strategy, and whether self-healing operation is allowed to be executed or not is determined; if the self-healing operation is allowed to be executed, a standardized control instruction is generated and sent to an equipment executing mechanism, and the equipment executing mechanism is driven to complete the self-healing operation; and if the self-healing operation is not allowed to be executed, the diagnosis information, the early warning report and the disposal suggestion are pushed to the operation and maintenance monitoring end, so that accurate prediction, fusion diagnosis and safe self-healing of the fault are realized, and the operation and maintenance efficiency and the equipment reliability are improved.

The invention discloses an intelligent electric power measurement and decision-making method based on an Internet of Things architecture, and aims to solve the problems of large temperature measurement deviation, poor dynamic adaptation, unquantified aging influence and extensive meter change decision-making in the prior art. The method comprises the following steps: collecting multi-source data, denoising and fusing, and generating a fused temperature observation value; inputting historical time sequence data formed by the data and the fusion temperature into the TCN, and outputting a state matrix increment to correct a Kalman filtering state equation; optimizing a filtering noise covariance matrix through PSO (Particle Swarm Optimization); based on the correction equation and the optimal noise matrix, the initial temperature of the contact is obtained through improved Kalman filtering; in combination with an SVR model, the aging compensation amount is calculated by taking the multi-source denoising data and the initial temperature as input, and the final temperature is obtained through superposition; and calculating an aging influence coefficient according to the aging compensation amount and the final temperature, and executing early warning or meter replacement. According to the invention, temperature prediction precision and long-term stability are improved, intelligent meter changing decision is realized, and equipment safety and operation and maintenance efficiency are guaranteed.

The invention relates to the field of power equipment, in particular to transformer mounting equipment and a mounting method.The transformer mounting equipment comprises a base, a limiting frame is fixedly connected to the base, a limiting groove is formed in the limiting frame, a hoisting mechanism and a bearing mechanism are connected to the limiting frame, the bearing mechanism can slide along the limiting groove, and the bearing mechanism comprises a bearing plate; two sliding grooves are formed in the bearing plate, sliding blocks are slidably connected into the two sliding grooves, a movable frame is fixedly connected to the upper ends of the two sliding blocks, two limiting rods are slidably connected to the movable frame, a contact plate is fixedly connected to the upper ends of the two limiting rods, the two limiting rods are sleeved with springs, and the springs are fixedly connected between the movable frame and blocking pieces at the lower ends of the limiting rods. According to the equipment, dual protection can be achieved in the transformer installation process, and the stability of the transformer in the hoisting process is further improved.

A substation portal frame bird nest removing device is carried by an unmanned aerial vehicle platform and comprises an executing mechanism fixedly connected to the bottom of the unmanned aerial vehicle platform through a rigid connecting frame, the executing mechanism comprises a main shell, the bottom of the main shell is open, and a memory alloy driving ring is contained in the main shell; the memory alloy driving ring is restored and popped out of the main shell through deformation of the electric heating driving assembly; the memory alloy driving ring comprises at least four sections of memory alloy arc sheets, and the four sections of memory alloy arc sheets are hinged end to end through hinges to form a deformable annular structure; a flexible wrapping bag is fixed to the inner wall of the main shell in a sealed mode, and the edge of a bag opening of the flexible wrapping bag and the outer edge of the memory alloy driving ring are sewn and fixed through a high-temperature line. The memory alloy driving ring is further provided with a hot feeding cutting system. A negative pressure adsorption system is arranged outside the main shell and used for enabling the flexible package bag to be adsorbed to the outer edge of the bird nest, and the bird nest can be efficiently pulled out while the safety of the birds is guaranteed.

The invention discloses a comprehensive integrated emergency repair workbench for a power supply station, and relates to the technical field of power supply emergency repair, the comprehensive integrated emergency repair workbench comprises a height adjusting area, a folding rainproof area, a turning area, a manual operation area and an auxiliary operation area, the height adjusting area is erected on the ground, and the folding rainproof area is arranged on the top surface of the height adjusting area; a turning machining area is arranged in front of the folding rainproof area, a manual operation area is arranged behind the folding rainproof area, and an auxiliary operation area is arranged on the side face of the folding rainproof area. Through integrated combination of multifunctional functional blocks of the height adjusting area, the folding rainproof area, the turning machining area, the manual operation area and the auxiliary operation area, and in cooperation with the structural characteristic of free storage, the first-aid repair platform obtains the comprehensive integration capacity and has the block division capacity and the portable transportation capacity at the same time; functional diversity, application universality and portability adaptability of the first-aid repair platform are improved, and the device can quickly and safely recover line smoothness and power supply capacity.

The invention relates to a ring main unit state remote early warning maintenance method and system integrated with AI diagnosis, and belongs to the technical field of intelligent operation and maintenance and monitoring control of power equipment. The method comprises the following steps: collecting load data of a power distribution branch, constructing a temperature-current bimodal grid to carry out a simulation load test on a ring main unit, and generating state data of the power distribution branch of the ring main unit; constructing an intelligent ring main unit monitoring and diagnosis model, analyzing voltage-current curves under normal and abnormal loads, and generating a ring main unit remote maintenance scheme; simulating and executing the remote maintenance scheme of the ring main unit through a digital simulation control method, and verifying an insulation degradation period of the ring main unit based on an electromagnetic interference simulation method to obtain state early warning information of the ring main unit; and setting a multi-level risk early warning value based on the remote maintenance scheme of the ring main unit, dynamically optimizing a maintenance period and an inspection strategy, and pushing a remote maintenance instruction of the ring main unit and state early warning information of the ring main unit through a cloud monitoring platform.

A kind of control cabinet and switchgear commissioning auxiliary device, including hollow fixed pipe, two strip grooves are symmetrically provided on fixed pipe, strip groove is connected with the inside of fixed pipe, the inside of fixed pipe is equipped with threaded rod, two ends of threaded rod pass through fixed pipe and protrude to outside, and one end of threaded rod is coaxially provided with a hand wheel;Threaded rod is equipped with two sections of thread of opposite direction, and two movable blocks are respectively set on corresponding thread. The lower of fixed pipe is symmetrically equipped with two suction mechanisms, the suction mechanism includes two symmetrically arranged movable blocks, the lower of movable block is equipped with hollow connecting rod, connecting rod passes through strip groove, and the bottom of connecting rod is equipped with suction disc. Connecting rod has cylindrical inner cavity, and the inner cavity of connecting rod is communicated with the suction cavity of suction disc, a reset spring and a piston assembly are sequentially arranged in the inner cavity of connecting rod from top to bottom. The device can control suction disc to be adsorbed on drawer or separated from drawer by single hand, and the control mode is simple and convenient.

The invention discloses a rapid deployment method and system for a mobile high-voltage chamber, and relates to the technical field of high-voltage chamber deployment. According to the method, preliminary exploration is completed by establishing an exploration machine group composed of a plurality of unmanned aerial vehicles, and a deployment area is formed in combination with ground personnel checking and site optimization; after being preassembled in a factory, the mobile high-pressure chamber is transported by a heavy truck with a hydraulic suspension system and is matched with laser positioning and AR alignment to realize high-precision hoisting; electrical equipment adopts an automatic docking mechanism composed of a prefabricated cable primary and secondary connector and an electric push rod to complete docking, and is equipped with an annular air bag to deal with rain and snow weather. The problems of low investigation efficiency, poor positioning precision, insufficient electrical docking reliability and poor protection in severe weather in traditional deployment are solved, the mobile high-voltage chamber deployment efficiency and stability are remarkably improved, and the mobile high-voltage chamber deployment method is suitable for electric power emergency guarantee, electric power construction in remote areas and temporary power utilization scenes.

The invention provides a foldable multi-station arc extinguish chamber maintenance platform and a using method thereof. The foldable multi-station arc extinguish chamber maintenance platform comprises a supporting column, a bottom plate is arranged at the bottom of the supporting column, and a lifting column is arranged at the top of the supporting column; the top end of the lifting column is rotatable and is provided with a clamping jaw; the clamping jaw is used for clamping the arc extinguish chamber and parts thereof; a plurality of object placing tables are arranged on the periphery of the supporting column and used for placing the arc extinguish chamber and parts of the arc extinguish chamber. The platform can be completely folded and stored, the occupied area is small after the platform is folded, the problem that traditional fixed maintenance equipment occupies space for a long time is solved, the space utilization rate is high, and the platform is suitable for power plants and other scenes with limited space; the hydraulic push rod drives the storage table to unfold / fold and the clamping jaw to ascend and descend, and the servo motor drives the clamping jaw to rotate, so that the manual carrying strength is reduced, and the operation convenience is high; components are placed in a multi-station classified mode, confusion is avoided, and the overhauling efficiency is improved.

A method for assembling a switching apparatus for medium voltage electric systems characterized in that it comprises the following steps: - for each electric pole of said switching apparatus, providing a mounting assembly, said mounting assembly comprising: - providing a first semi-finished structure of said switching apparatus, wherein said first semi-finished structure comprises, for each electric pole of said switching apparatus, a first pole terminal and a first fixed contact electrically connected to said first pole terminal; - for each electric pole of said switching apparatus, installing said mounting assembly on said first semi-finished structure.

The invention relates to the technical field of electrical equipment installation, and particularly discloses an auxiliary installation structure for high-low voltage complete electrical equipment, the structure comprises a limiting frame and a lantern ring, a plurality of lower clamping plates are installed on the limiting frame, an annular groove is formed in the limiting frame, and a second cutter is installed in the annular groove; two guide rods are symmetrically arranged on the limiting frame, lug plates are symmetrically arranged on the periphery of the lantern ring, the two guide rods are sleeved with the two lug plates respectively, a fastener is installed on the lantern ring and used for fixing a to-be-installed copper nose, and a cutting assembly and an installation assembly are further installed on the lantern ring. The cutting assembly cuts a cable sheath in the vertical direction, and the installation assembly assists the copper nose to sleeve the periphery of a cable core. The installation of the copper nose is completed while the cable skin is cut, and stripping and installation of the copper nose are performed synchronously, so that the installation efficiency of the copper nose is improved, and the installation efficiency of the whole set of high-voltage and low-voltage power equipment is further improved.

The utility model relates to the technical field of electrical switch operation, and discloses an integrated tool for power-off and power-on operation of power plant equipment, which comprises a fixing frame, the top end of the fixing frame is connected with an adjusting assembly, and the inner side of the fixing frame is connected with a clamping assembly; compared with the prior art, the power distribution cabinet has the advantages that when a worker operates the power distribution cabinet at a higher position, a tool can be prevented from sliding off due to accidental collision or hand shaking of the worker, and the tool is prevented from falling off to hurt the worker or damage other equipment; the safety of the integrated tool for the power-off and power-on operation of the power plant equipment is improved; the height of the tool can be adjusted according to the specific position of an equipment operation part, and the operation head can be easily inserted into the corresponding hole, so that the operation convenience of the integrated tool for the power-off and power-on operation of the power plant equipment is improved.

The hoisting frame comprises a prefabricated cabin body, a cabin top is arranged at the top of the prefabricated cabin body, sliding grooves are formed in the front side and the rear side of the cabin top, installation sliding blocks are installed in the sliding grooves in a sliding mode, the outer sides of the installation sliding blocks are in threaded connection with guiding pieces, and the guiding pieces are in threaded connection with the installation sliding blocks. A telescopic connecting sleeve is mounted at the bottom of the side wall of the prefabricated cabin body; a threaded column is mounted on the back of the guide part and is in threaded connection with the interior of a threaded hole formed in the front end of the mounting sliding block, a guide groove is formed in the side, away from the mounting sliding block, of the guide part, and rollers are rotationally mounted at the bottoms of the two ends of the guide groove. According to the hoisting frame convenient to disassemble and assemble and used for mounting the prefabricated cabin, the guide piece and the mounting sliding block are arranged, the threaded column on the back of the guide piece is connected into the threaded hole in a threaded mode, the guide piece is mounted, the guide groove in the guide piece is convenient to hoist and penetrate through the guide piece, and meanwhile friction between a hoisting rope and the guide piece can be reduced through the pin roller.

The invention discloses an internal inspection docking device for oil-filled equipment, the oil-filled equipment is provided with a manhole door, the device comprises: an adapter comprising a first flange and a driving mechanism, and the first flange is detachably connected with the manhole door; the cabin door mechanism comprises a second flange and a cabin door, the second flange and the first flange are detachably connected and attached in a sealed mode, the cabin door is rotationally connected with the second flange, and the cabin door is attached to the second flange in a sealed mode in a closed state; the butt joint cabin forms a closed space, the driving mechanism is arranged in the closed space, the driving mechanism is rotationally connected with the cabin door so as to drive the cabin door to be opened or closed, and the cabin door is in sealed connection with the hole of the second flange in the closed state. Through the adapter seat, the cabin door mechanism and the butt joint cabin, precise sealing butt joint with the manhole door of the oil filling equipment can be achieved, opening and closing of the cabin door can be stably controlled through the driving mechanism in the closed space, and insulation oil leakage and external environment interference can be effectively blocked.

Power supply module (16) for mounting on a mounting rail (10), - with a housing (38) which has a fastening device (40) for direct mounting on the mounting rail (10), and which has a contact area (52) with a first contact (54) and a further contact area (42) with a first further contact (44) and with a second further contact (46), - with a lever (62) pivotably mounted on the housing (38), which has a first counter contact (54), wherein by pivoting the lever (62) the first counter contact (64) can be brought into electrical contact with the first contact (54), - wherein the first contact (54) is electrically directly connected to the first further contact (44), - wherein the housing (38) has a power input (30) and a control input (32), - wherein the current input (30) is connected to the second further contact (46) via a switching unit (82), and - wherein the switching unit (82) is actuated depending on a signal applied to the control input (32).

The invention belongs to the field of substation operation and maintenance equipment, and particularly discloses a substation power operation and maintenance auxiliary device which comprises a movable vehicle body and a fixing assembly, walking wheels are installed at the bottom of the movable vehicle body, and foldable supporting foot assemblies are symmetrically installed on the two sides of the movable vehicle body; a bracket is fixedly mounted in the middle of the movable vehicle body; a turntable is horizontally and rotatably mounted above the bracket, and the turntable is connected with a rotary driving assembly on the bracket; a plurality of telescopic rods are vertically and fixedly arranged on the support, a lifting seat is horizontally and fixedly arranged at the tops of the telescopic rods, and the fixing assembly is installed on the lifting seat; the upper end of the ejector rod is rotationally installed in the middle of the bottom of the lifting base, and the lower end of the ejector rod is connected with a lifting driving assembly on the support. The device has the advantages of flexible movement, rapid and accurate lifting, stability, reliability and fixation and the like, and can effectively solve the problems of insufficient flexibility, difficulty in consideration of stability and safety, low operation efficiency and the like in the prior art.

The invention discloses a distributed photovoltaic power station intelligent safety operation and maintenance management system, and relates to the technical field of photovoltaic power station operation and maintenance, the system comprises a data acquisition module, a data processing module, a calculation and analysis module and a management execution module, and the calculation and analysis module comprises a component health sub-module, a potential risk sub-module and an operation and maintenance analysis sub-module. According to the invention, a comprehensive attenuation coefficient is output through the assembly health sub-module, a dust coverage rate and other multi-dimensional parameters are integrated to quantify an attenuation state, a fault risk index is output based on the potential risk sub-module through the potential risk sub-module, and parameters such as current fluctuation are fused to construct a multi-precursor early warning system. The operation and maintenance analysis sub-module integrates parameters such as a risk index and outputs an operation and maintenance priority index, and the three components cooperate to realize full-period quantitative management from attenuation evaluation, fault early warning to operation and maintenance decision making, so that the traditional limitation is broken through, and the evaluation accuracy and the operation and maintenance efficiency are improved.

The invention provides a substation work ticket guiding method and device, equipment, a medium and a program product, and relates to the technical field of power grids. The transformer station work ticket guiding method comprises the following steps: acquiring current work ticket data of a target transformer station comprising at least one target work screen cabinet, and an identifier, a work ticket number and a work ticket state corresponding to each target work screen cabinet, and aiming at each target work screen cabinet in the at least one target work screen cabinet; determining a target display device corresponding to the target working screen cabinet according to the identifier corresponding to the target working screen cabinet, further generating a first control instruction carrying operation guidance prompt information according to a working ticket state and a working ticket number corresponding to the target working screen cabinet, and then sending the first control instruction to the target display device, the operation guidance prompt information is displayed through the target display equipment, so that the risk of safety accidents such as entering a live-line interval by mistake is reduced, and the misoperation rate of the working screen cabinet is further reduced.

To reduce the number of people required for the work and to easily and safely perform the work of installing a wall-mounted panel. [Solution] A wall-mounted panel support device 10, including a panel support frame 14 on which a wall-mounted panel SB is placed and supported, is attached to the treads 22a, 22b of a stepladder 20 by a step bar attachment mechanism 17F, and the wall-mounted panel is held at the approximate height required for mounting to a wall W by the stepladder. The stepladder is slid on the floor surface F by a base slider 30 until the wall-mounted panel is moved to a position facing the wall closely, and the panel support frame is slid up and down by a panel jack mechanism 16J to fine-tune the height of the wall-mounted panel to match the height of the anchor bolts ab on the wall. The panel support frame is slid forward from the support device by slide rails 13L until the anchor bolts ab are inserted into the mounting holes in the wall-mounted panel and the wall-mounted panel is in close contact with the wall. The anchor bolts are then tightened and fixed with nuts.

The utility model relates to the technical field of electric power overhaul, and discloses an insulation protection device for electric power overhaul, which comprises a bottom plate body, the left and right side wall surfaces of the bottom plate body are respectively provided with a storage groove, the two storage grooves are respectively provided with an adjusting plate, and the bottom wall of the bottom plate body is slidably connected with two moving rods. Racks are fixedly mounted on the opposite side wall faces of the two moving rods correspondingly, a mounting frame is fixedly mounted on the bottom wall face of the bottom plate body, a driving mechanism used for moving the two moving rods is arranged in the mounting frame, and insulating protective fences are fixedly mounted on the top end wall faces of the outer sides of the two adjusting plates correspondingly. The driving motor is started, the rotating rod is driven to transmit power through the transmission shaft, the gear is driven to rotate, the gear is meshed with the two racks, and therefore the two moving rods are driven to move in the opposite directions, the two adjusting plates are moved out of the bottom plate body through the sliding plates, the area of a platform is further expanded, and the working requirements of maintainers are met.