The invention relates to a transformer mounting structure. The structure comprises a horizontally arranged mounting plate, a rectangular frame body which is fixedly connected to the upper surface of the mounting plate and is used for accommodating a transformer, and a fixing assembly which is arranged on a side plate of the rectangular frame body to fix the transformer. A bottom plate is arrangedunder the mounting plate, and a pair of supporting legs are arranged between the mounting plate and the bottom plate and located at one end of the mounting plate, wherein one end of each supporting leg is fixedly connected to the bottom plate, and the other end of each supporting leg is hinged to the mounting plate. A leveling device is arranged at the end, opposite to the supporting foot, betweenthe mounting plate and the bottom plate, and comprises a pair of lifting assemblies in one-to-one correspondence with the supporting legs and a driving assembly connected between the two lifting assemblies so as to drive the side, away from the supporting legs, of the mounting plate to ascend and descend. The structure has the advantage that a worker can conveniently level the transformer and maintain the transformer later.

Transformer mounting structure and construction method for mounting transformer by applying same

The invention discloses a high-energy cleaning and repairing integrated equipment. The high-energy cleaning and repairing integrated equipment comprises a high-energy beam generating device and a control system, is characterized in comprising a line patrol robot, a corrosion detection sensor and a repair system, wherein the corrosion detection sensor, the high-energy beam generating device and therepair system are correspondingly arranged on the line patrol robot, an output signal end of the corrosion detection sensor is connected with an input port of the control system, the output port of the control system is connected with the control port of the high-energy beam generating device and the control port of the repair system correspondingly, and the control system is used for controllingthe high-energy beam generating device to clean the surface of the cleaned equipment according to a detection signal of the corrosion detection sensor; and when the corrosion degree of the surface ofthe cleaned equipment exceeds a set threshold value, the control system controls the repair system to perform surface protection repair operation on a corrosion position of the surface of the equipment after the cleaning is completed. According to the equipment, the high-energy beam generating device and a surface protection system are combined, so that the integrated operation equipment for repairing the metal rust cleaning and corrosion part repairing is realized, and is particularly suitable for the cleaning and the repairing and recovering of the large steel structure equipment such as iron towers and cargo ships.

High-energy cleaning and repairing integrated equipment

The invention discloses a typical power plant lightning arrester configuration and insulation coordination modeling method. The method comprises the following steps that a transient simulation programis applied to build a typical power plant simulation model conforming to the actual situation on site; in a zinc oxide lightning arrester model, zinc oxide lightning arrester model parameters are set; a rated voltage value of a lightning arrester comprises slow-front overvoltage and fast-front overvoltage; assuming that any leading-out terminal of a power plant is subjected to random lightning overvoltage attack, modeling is conducted on power plant main electrical connection, the built typical power plant simulation model runs, voltage waveforms of all reference points are observed, and insulation and system stability of a main electrical system of the power plant provided with the zinc oxide lightning arrester are verified. Accordingly, the number and positions of the power plant lightening arresters are subjected to optimization selection, the insulation level of equipment is determined according to regulation, the insulation margin is verified, and guidance is provided for insulation coordination design of the typical power plant.

Typical power plant lightning arrester configuration and insulation coordination modeling method

The invention discloses a method for testing the temporary overvoltage limit tolerance characteristic of a lightning arrester of a direct-current change-over switch. The method mainly comprises an initial value measurement step, a temporary overvoltage tolerance test step and a test judgment step. According to the temporary overvoltage limit tolerance test method in the invention, a plurality of times of temporary overvoltage withstand voltage tests are carried out under the condition of test waveforms with different wavelengths, and transient overvoltage multiples are adjusted according to different test results, so the accurate transient overvoltage limit tolerance multiple of the lightning arrester of the direct-current change-over switch can be obtained, a configuration basis can be provided for the design of the lightning arrester of the direct-current change-over switch, and the operation reliability of the lightning arrester in the conversion process of a direct-current system is improved.

Method for testing temporary overvoltage limit tolerance characteristic of lightning arrester of direct-current change-over switch

The invention discloses a laser cleaning device applicable to wires and bars. The laser cleaning device comprises a laser cleaning head and a reflecting device, wherein the laser cleaning head emits laser beams to irradiate the upper half circumferential surfaces of the wires and the bars; the laser beams not acting on the upper half circumferential surfaces are reflected to the lower half circumferential surfaces of the wires and the bars through the reflecting device; the laser cleaning head and the reflecting device are diagonally opposite to each other; and an included angle is kept between the laser beams emitted by the laser cleaning head and the vertical direction. The laser cleaning head above the wires and the reflecting device below the wires are cooperated to use, so that the circumferential cleaning of the wires and the bars by 360 degrees is achieved at one time, and the laser cleaning efficiency is improved; and the laser beams not acting on the upper half circumferentialsurfaces are reflected to the lower half circumferential surfaces of the wires and the bars through the reflecting device, so that the utilization rate of the laser beams is improved.

Laser cleaning method and device applicable to wires and bars

The application discloses a laser rust cleaning device for high voltage live equipment, including treater, lifting unit, horizontal displacement subassembly, rotating assembly, laser emitter, camera,first box and second box, lifting unit, horizontal displacement subassembly, rotating assembly, laser emitter, camera all are connected with the treater electricity. Treater control lifting unit and horizontal displacement subassembly make laser emitter aim at the position that the rust cleaning was treated to the electrically conductive equipment of high pressure, then shoot and send to the treater the position intelligence that derusts through the camera, and the rust cleaning time is confirmed in the treater analysis, a laser rust cleaning device for high voltage live equipment can realizeremote rust cleaning by automatic control. The application provides a laser rust cleaning device for high voltage live equipment, simple structure can carry out the remote rust cleaning of non -contact to high voltage live equipment safely under the state that does not have a power failure, can in time eliminate rust to high voltage live equipment, and enhancing power supply reliability guaranteesthe safe operation of electric wire netting equipment.

A laser rust cleaning device for high voltage live equipment

The invention provides a device, method and system for laser rust removal and laser cladding. According to the method, a first laser head, a second laser head, a microscope, a controller and an integrated light path unit are included; the controller is connected with the first laser head, the second laser head, the microscope and the integrated light path unit; the first laser head and the secondlaser head are connected with the integrated light path unit; the first laser head is used for carrying out rust removal on high-voltage charged equipment; and the second laser head is used for carrying out cladding on the high-voltage charged equipment. According to the device, the rusted area of the high-voltage charged equipment is subjected to laser rust removal, the rust removal surface is monitored in real time through the microscope, and if it is found that sand holes or other tiny holes appear on the surface after laser rust removal, the surface is immediately subjected to laser cladding. By means of the device, charged rust removal is achieved on the high-voltage charged equipment, charged repair is achieved on the sand holes appearing in the high-voltage charged equipment, the probability that failures happen is reduced, repair is achieved in time, and cost is reduced.

Device, method and system for laser rust removal and laser cladding

The invention provides a GIS/GIL insulation flashover waveform detection system, which comprises a voltage applying device, a high-voltage sleeve, a test cavity, a high-voltage guide rod and a basin-type insulator. A first hand hole and a second hand hole are formed in the upper surface and the lower surface of the tail end of the test cavity respectively; the first hand hole is provided with a flashover voltage waveform measuring device; and the second hand hole is provided with an insulation sample fixing device. The flashover voltage waveform measuring device comprises a VFTO sensor probeand an oscilloscope. The voltage applying device applies voltage to an insulation sample; and when flashover happens to the insulation sample, transient overvoltage generated on the high-voltage guiderod is detected by a VFTO sensor, and waveform data is collected through the oscilloscope. Therefore, the system can accurately measure GIS/GIL equipment insulator surface flashover overvoltage waveform, study the influence rules of the insulation distance, the action voltage form and the gas pressure intensity on the flashover waveform time-frequency characteristics, and is of important significance to positioning the insulation fault.

GIS/GIL insulation flashover waveform detection system

The embodiment of the utility model discloses a testing arrangement for a plurality of metal oxide lightning arrester valve block performances, crossing voltage generator, first flange, second flange and current coil including express fast transient state, being provided with multiunit parallel plate electrode group a set of or parallel connection between first flange and the second flange, parallel plate electrode organizes the parallel plate electrode who connects including one or more electricity in proper order, and parallel plate electrode includes high voltage electrode, low -voltage electrode and spring and sheetmetal, and the current coil 0 valve block that awaits measuring is placed between high voltage electrode and low -voltage electrode. Through setting up a set ofly or multiunit parallel plate electrode group, just every group sets up a plurality of parallel plate electrode of work to overcome the defect that only can measure a metal oxide lightning arrester valve block among the prior art, can realize the capability test of a plurality of metal oxide lightning arrester valve blocks under the different serial and parallel structure, and this testing arrangement simple structure, easily operation is convenient for extensively promote.

A testing arrangement for a plurality of metal oxide lightning arrester valve block performances

The invention provides a GIS detection device and a GIS detection system. The GIS detection device comprises a flange, a [Mu] PMT and an infrared pyroelectric sensor, wherein a first boss and a secondboss are arranged on the flange, a first mounting groove is formed in the first boss, and a second mounting groove is formed in the second boss; a first socket is arranged on the top of the first boss, the [Mu] PMT is fixedly arranged inside the first mounting groove, and the [Mu] PMT is electrically connected to the first socket; a second socket is arranged on the top of the second boss, the infrared pyroelectric sensor is fixedly arranged inside the second mounting groove, and the infrared pyroelectric sensor is electrically connected to the second socket. According to the GIS detection device and the GIS detection system provided by the invention, the [Mu] PMT and the infrared pyroelectric sensor are mounted simultaneously by using the flange, simultaneous collection and monitoring onlocal discharge and heating information inside a GIS closed pipeline are realized, data analysis is carried out on accident causes, and the GIS detection device and the GIS detection system are also practically significant for perfecting the early warning and diagnosis system of failures.

GIS detection device and GIS detection system

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