14results about How to "Avoid Electrical Accidents" patented technology

The utility model belongs to the technical field of high-voltage electric power maintenance, and particularly relates to a high-voltage electric power circuit intelligent grounding wire with a whole-process monitoring function, which comprises a monitoring alarm device, a grounding end wire clamp is fixedly arranged at the lower end of the monitoring alarm device, and tower angle steel is fixedly arranged at the lower end of the monitoring alarm device through the grounding end wire clamp. A grounding cable is fixedly arranged at the right end of the grounding end wire clamp, a wire end wire clamp is fixedly arranged at the lower end of the grounding cable, an overhead line wire is arranged in the wire end wire clamp, and the wire clamp anti-falling device is achieved through a ratchet and pawl mechanism. The wire clamp does not fall off from the wire end due to factors such as wind blowing and manual accidental touch, and the wire clamp can be separated from the wire only when an operator deliberately dismantles the wire clamp; the installation and disassembly operation is safe, efficient and convenient; and the installation and disassembly operation of the grounding wire can be realized only by dragging the insulating rope.

The invention relates to the technical field of power grid systems. The invention provides a power transmission and distribution line lightning protection equipment quality evaluation method, which comprises the following steps of: pre-defining and setting a unified standard for evaluating the performance of lightning protection equipment through a quality control system, and establishing a real-time monitoring system of the lightning protection equipment; historical data of the lightning protection equipment are collected, a historical data set is established, and a quality evaluation model is constructed through a quality control system; the real-time monitoring system collects related data of the lightning protection equipment to be evaluated and feeds back the related data to the quality control system to obtain a real-time data set; based on the real-time data set, performing quality evaluation on the to-be-evaluated lightning protection equipment through a quality evaluation model, and obtaining a quality evaluation result; and making corresponding operation and maintenance measures according to the quality evaluation result, and feeding back the quality evaluation result and the corresponding operation and maintenance measures to the user, thereby solving the problems of non-uniform evaluation standards, lack of real-time performance in the evaluation process, low evaluation efficiency, high error rate and low evaluation accuracy of the existing lightning protection equipment quality evaluation method.

The invention relates to a power source switching device and method. The equipment comprises a plurality of relay groups, and each relay group comprises a plurality of relays which are connected in parallel; the first power supply is used for supplying power to a coil of the relay group; the relay group controller comprises a plurality of paths of control switches which are connected in parallel, a plurality of power supply loops which are in one-to-one correspondence with the relay groups are formed by the relay group controller and the first power supply, and the relay group controller is used for switching the on-off states of the control switches according to the obtained switching instruction so as to control the on-off of all relays in the corresponding relay groups; a plurality of first wiring terminal strips, each first wiring terminal strip comprising a plurality of first wiring terminals used for connecting the relay and the electric equipment; and the second wiring terminal strip comprises a plurality of second wiring terminals which are used for connecting the relay and the power source. According to the invention, automation of power source switching can be realized, the switching efficiency is improved, and the safety risk is reduced.

The utility model provides a distribution box for cinema projection equipment, which is applied to the technical field of distribution boxes. The distribution box comprises a door plate and a box body, the side end of the door plate is rotatably connected with the side end of the box body, the outer surface of the door plate is provided with a power button, a locking mechanism and a plurality of function buttons, the power button is connected with a circuit breaker in the box body, and the circuit breaker is connected with one end of a low-voltage power supply in the box body. The other end of the low-voltage power supply is connected with a first end of an alternating-current contactor in the box body, a second end of the alternating-current contactor is connected with a first end of a central control panel in the box body, a third end of the alternating-current contactor is connected with a corresponding function button, and a second end of the central control panel is connected with a plurality of sensors arranged in a cinema; the third end of the central control board is connected with one end of a wiring terminal in the box body, and the other end of the wiring terminal is connected with cinema projection equipment. In this way, the running efficiency of cinema equipment can be improved.

The present invention discloses a power distribution cabinet with a wire bundling structure and a method thereof, and relates to the technical field of power distribution cabinets, comprising a cabinet body and a wire bundling device, wherein a cabinet door is arranged on the surface of the cabinet door, a handle is fixedly installed on the surface of the cabinet door, and an electrical component is fixedly installed on the inner wall of the cabinet door, wherein the wire bundling device comprises a sliding frame, a sliding rod, a wire bundling frame, a rotating rod, a gear, a fixed plate, a fixed rod, a sliding plate, a rack, a wire bundling rod and a linkage plate, wherein the rotating rod rotates counterclockwise to drive the gear to rotate, the gear rotates to squeeze the rack to move toward the fixed plate, the rack moves to drive the wire bundling rod to move to further squeeze the wire to prevent the wire from being excessively pulled, and when the wire is accidentally pulled, the rack and the wire bundling rod immediately further fix and support the wire to prevent it from being pulled further, thereby avoiding damage or rupture of the wire due to sudden pulling force, thereby protecting the stability and safety of the electrical system.

The application provides a kind of rail vehicle axle end ground wire online monitoring system, belong to ground wire online monitoring field, the system includes: multiple sensor modules, one-to-one correspondence is arranged in each steering axle ground device of rail vehicle inside, for collecting the environmental data of each steering axle ground device;Multiple processors, one-to-one correspondence is arranged in each steering axle ground device of rail vehicle inside, and each processor is connected with adjacent on-board diagnostic instrument, for receiving the environmental data collected by corresponding sensor module;Multiple on-board diagnostic instruments, one-to-one correspondence is arranged in each steering axle ground device of rail vehicle inside, for monitoring the ground wire of corresponding steering axle ground device according to the environmental data sent by corresponding processor and the environmental data sent by adjacent processor.The rail vehicle axle end ground wire online monitoring system provided by the application can improve the reliability of ground wire online monitoring.

The invention belongs to the technical field of stator windings, and discloses a 100MW turbonator stator winding inserting method, which comprises the following steps: S1, a pre-preparation stage; s2, a disassembly preparation stage; s3, a stator winding dismounting stage; s4, performing subsequent inspection and maintenance; the pre-preparation stage comprises shutdown and electrical isolation, environment preparation and tool and equipment preparation. Good external conditions and reliable equipment support are provided for dismounting work, the stability and suitability of the dismounting environment are ensured through temperature and humidity control, and the influence of environment change on the winding performance is reduced; a working area is thoroughly cleaned, so that potential pollution sources are eliminated, the smooth operation of the dismounting work, the use of a special dismounting tool and the inspection of the sharpness of a cutter are guaranteed, the surface of the winding is prevented from being scratched, and the completeness of the winding is protected; and the use of the insulation detector ensures that the insulation performance of the winding is good before the winding is disassembled, and provides a powerful guarantee for subsequent reinstallation.

The utility model relates to the technical field of lamps, and provides a floor lamp with a switch at the top, which comprises a base and a carrier, the carrier is mounted on the base, clamping grooves are arranged on multiple side surfaces of the carrier, LED lamp strips are clamped in the clamping grooves, a fixing cover is clamped at one end of the carrier far away from the base, a clamping block is arranged on the fixing cover, and the switch is arranged on the clamping block. A through hole penetrating through the two ends of the carrier is formed in the center of the carrier, a round hole is formed in the clamping groove, a USB charging line used for providing power is placed in the through hole, the USB charging line penetrates through the round hole and extends out of the carrier, a circuit board is installed on the fixing cover, the output end of the USB charging line is electrically connected with the circuit board, and a power line is connected between the circuit board and the LED lamp strip. A touch switch is arranged on the fixing cover, the touch switch and the circuit board are integrally arranged, and the LED lamp strip and a light-transmitting plate are clamped in the clamping groove. According to the utility model, if a user needs to control the floor lamp, the user can directly touch the control switch above the carrier with a hand without bending down effortlessly and treading with feet.

The utility model relates to the technical field of photovoltaic power generation, and aims to provide a roof photovoltaic system. According to the roof photovoltaic system, the waterproof performance of the roof is good, wire ends and cables can be protected, and electricity utilization safety is guaranteed. The photovoltaic system comprises a plurality of photovoltaic module units which are adjacently arranged on a roof foundation waterproof layer along a first direction, wherein each photovoltaic module unit comprises a plurality of photovoltaic modules which are sequentially connected along a second direction; the photovoltaic module comprises a profiled plate, a photovoltaic laminated piece and a wiring device, the profiled plate is arranged on the basic waterproof layer, the photovoltaic laminated piece is arranged on the side, away from the basic waterproof layer, of the profiled plate, and the wiring device is arranged on the side close to the basic waterproof layer and electrically connected with the photovoltaic laminated piece. And the wiring devices of the adjacent photovoltaic modules in the first direction are electrically connected. According to the utility model, the problems in the prior art that the water leakage hidden danger exists in the installation of the photovoltaic module and the profiled plate, the waterproof protection of the wire end and the cable cannot be realized, and the potential safety hazard exists are solved.

The application discloses a kind of based on digital ray technology's transmission line strain clamp nondestructive testing method, it is related to transmission line strain clamp detection field, method includes: collection strain clamp radiographic image and geometric dimension, stress and so on multidimensional parameter, data fusion is carried out by hypergraph structure, multidimensional heterogeneous strain clamp analysis model is calculated and analyzed in edge side using optimized hypergraph neural network and edge computing gateway, to visualize presentation detection result in the form of double screen linkage, while realizing intelligent diagnosis and defect early warning;The application provides an efficient, accurate and reliable solution for the intelligent operation and maintenance of transmission line strain clamp, effectively improves the safe operation level and operation and maintenance efficiency of power grid.

The invention discloses a power distribution box with a temperature sensing function and a use method thereof, and relates to the technical field of power distribution boxes, the power distribution box comprises a bottom plate, the top of the bottom plate is fixedly connected with a base, the top of the base is fixedly connected with a box body, the front side of the box body is hinged with a box door through hinges, the box door is fixedly connected with a handle, and the handle is fixedly connected with the power distribution box. A heat dissipation mechanism is arranged in the box body, a moisture-proof mechanism is arranged in the box body, and a buffer mechanism is arranged in the base. Through the heat dissipation mechanism, the temperature in the distribution box can be monitored, when the temperature exceeds the standard, heat dissipation is carried out on the interior of the box body through a water cooling mode and an air cooling mode, power utilization accidents caused by too high temperature in the distribution box are prevented, through the damp-proof mechanism, the interior of the box body is kept dry, and the service life of the box body is prolonged. And the moisture-proof box is very convenient to mount, so that the use convenience of the device is improved.

This utility model relates to the technical field of lifting power cords, specifically a novel lifting power cord, comprising: an inner core and an outer inner sheath, with an outer sheath fitted over the outer wall of the inner sheath; a reactive wire forming a closed loop is installed inside the outer sheath, the reactive wire being a metal wire made of a conductive material, and the closed loop having a power inlet; a portion of the reactive wire in the closed loop is distributed along the axial direction of the outer sheath; the tensile strength of the reactive wire is between the tensile strengths of the inner core and the outer sheath; the outer sheath also incorporates a sensing component for detecting the breakage of the closed loop. In this utility model, when the lifting load of the lifting power cord gradually increases to the warning line, the breakage of the reactive wire can warn workers, preventing the lifting power cord from breaking due to the increased load.

According to the technical scheme, the main transformer incoming line switch is characterized in that the main transformer incoming line switch comprises a switch cabinet body, an instrument chamber, a handcart chamber, a branch line chamber, a small bus chamber, a cable chamber and a grounding chamber are arranged in the switch cabinet body, and a breaker is fixedly installed on a handcart of the handcart chamber; the electrical layout that the air clear distance is larger than or equal to 160 mm is kept between the devices in the switch cabinet body, the main bus adopts the TMY-3 (120 * 10) specification, the rated current can reach 4000 A, the branch lines adopt the TMY-4 (100 * 10) specification, and the air clear distance is larger than or equal to mm through the electrical layout that the air clear distance is larger than or equal to 160 mm between the devices in the switch cabinet body. The short circuit or discharge phenomenon possibly caused by too small electrical clearance is effectively prevented, the electrical safety performance of equipment is remarkably improved, the main bus adopts the TMY-3 (120X10) specification, the rated current can reach 4000 A, it is ensured that the main bus can bear large current, the requirement for high-load operation is met, meanwhile, the specification and quality of bus materials are ensured, and the production cost is reduced. And the reliability and the stability of equipment are improved.

The utility model discloses a portable cable joint welding and pressing device. The portable cable joint welding and pressing device comprises a movable box body, a crimping assembly and a heating assembly. The box body is provided with a first accommodating cavity; the crimping assembly is detachably arranged in the first accommodating cavity, one end of the crimping assembly is provided with a movable wire pressing groove, the wire pressing groove can accommodate a cable and a wire nose, and the crimping assembly is used for crimping the cable and the wire nose; and one end of the heating assembly is connected with one end of the wire pressing groove of the crimping assembly, and the heating assembly is used for additionally welding a cable and a wire nose in the wire pressing groove. Through the movable box body, the heating assembly and the crimping assembly are carried to crimping scenes of various cables and cable noses, the heating assembly and the crimping assembly are detached from the box body, and the crimping device can be suitable for field crimping of large-specification cables and cable noses and also can be suitable for crimping of small-specification cable noses.