144 results about "High voltage transformer" patented technology

The invention relates to a high-voltage transformer series resonance withstand voltage test system and an automatic tuning method, and relates to the technical field of high-voltage electrical equipment testing, and the system comprises a control module, a signal generator, a resonance circuit, a data acquisition module and a safety protection unit. The method comprises the following steps: initializing system parameters; automatically searching and locking an optimal resonant frequency point; executing a withstand voltage test at the resonance point and monitoring data; and automatically analyzing data and judging performance. According to the invention, through full-closed-loop automatic control, rapid and accurate locking of the resonant frequency and intellectualization of the test process are realized, and the problems of low efficiency, poor precision and insufficient safety of a traditional method are effectively solved. The device has the outstanding advantages of high adaptive capacity, reliable test result and safety and convenience in operation, and is particularly suitable for high-efficiency and accurate standardized test on the insulating properties of various high-voltage transformers in an electric power system.

The invention provides an extra-high voltage data fusion analysis method and system, and relates to the technical field of data fusion analysis, and the method comprises the steps: deploying a sensor and a collection terminal, carrying out the data collection, carrying out the unified time calibration and quality measurement based on the collected data, carrying out the channel credibility initial value calculation, and carrying out the degradation strategy, and performing node power balance residual verification, traveling wave arrival time difference residual verification and thermoelectric consistency residual verification on the basis of a data acquisition result, performing online credibility updating on the basis of a thermoelectric consistency residual verification result, setting a participation weight interval on the basis of an online credibility updating result, and generating a physical consistency verification code. By deploying multiple types of acquisition terminals in an extra-high voltage transformer substation and a power transmission line channel and based on a unified time synchronization calibration, quality measurement and channel credibility calculation mechanism, the accuracy and timeliness of data acquisition can be ensured, and particularly, a channel credibility initial value is generated through weighted calculation of a time synchronization deviation, a packet loss rate and a signal-to-noise ratio.

The invention provides an extra-high voltage transformer temperature field rapid calculation method, which comprises the steps of determining an input characteristic quantity according to a flow thermal coupling principle and a transformer type, establishing a simulation model, solving an equation set by utilizing a finite volume method to obtain an output characteristic quantity, carrying out normalization processing on the output characteristic quantity, forming a sample set through point cloud processing, and calculating the temperature field of an extra-high voltage transformer. The method comprises the following steps: randomly dividing into a training set and a test set, constructing a U-net + + neural network, taking a mean square error as a loss function, carrying out grouping test on key hyper-parameters, determining an optimal combination, inputting the constructed training set into the U-net + + neural network for iterative training, and carrying out supervised learning by taking an output characteristic quantity as label data. And when the calculation precision meets the requirement, obtaining an optimal model, and carrying out validity verification on the optimal model by utilizing a new working condition in the test set. According to the method, the calculation efficiency is improved, equipment can be protected from interference, and the safety and reliability of data are ensured.

This system monitors and controls power receiving and transforming equipment installed on the electrical pathways from the power supplier to multiple loads. It prevents electrical accidents that could lead to fires by monitoring and controlling the step-down and distribution transformers installed in the power receiving and transforming equipment, i.e., the high-voltage transformers, and electrical equipment such as distribution boards and panelboards installed on the electrical pathways after the voltage has been stepped down by the high-voltage transformers in the power receiving and transforming equipment. The system constantly monitors the temperature of the high-voltage transformers and the instantaneous current flowing through the electrical pathways of electrical equipment such as distribution boards and panelboards installed on the electrical pathways after the voltage has been stepped down by the high-voltage transformers, and cuts off the power supply to the loads if the temperature of the high-voltage transformer exceeds a predetermined value, or if the instantaneous current flowing through the electrical pathways of the electrical equipment exceeds a predetermined value.

The utility model relates to an electric flame stove, which comprises a case, a driving module, a voltage doubling rectifying module, a burner, a metal shell and a high-voltage transformer, wherein the burner is arranged on the case; the metal shell is arranged in the case and is provided with a containing cavity; the high-voltage transformer is used for being connected with input voltage; the driving module is connected with the furnace end through the high-voltage transformer and the voltage doubling rectifying module, and the high-voltage transformer is located in the metal shell. The influence of a magnetic field generated by the high-voltage transformer on the voltage doubling rectifying unit and the interference of the magnetic field on external electric appliances can be eliminated, meanwhile, eddy current generated by the high-voltage transformer can promote the high-voltage transformer, and then the conversion efficiency of the high-voltage transformer is improved.

The invention relates to the technical field of power equipment on-line monitoring and intelligent diagnosis, in particular to an extra-high voltage transformer multi-modal data conflict fault misjudgment analysis method based on a DS evidence theory and graph enhancement. According to the invention, under the unified time reference and the electromagnetic-thermal physical topology constraint, the consistency fusion of the three-mode data of electromagnetic, acoustic vibration and distributed optical fiber temperature is realized, and the layered suppression and traceable positioning are carried out on evidence conflicts caused by coupling uncertainty and transient noise in the fusion process. Therefore, reliable fault confidence evaluation is output, and an accurate misjudgment traceability basis is provided. A traceable fault confidence coefficient is output in a unified time reference and a physical topology constraint through an electromagnetic-thermal dynamic coupling map which is synchronously acquired by hardware-level three modes and is updated in real time along with working conditions, and a layered D-S evidence conflict suppression and traceability algorithm.

The invention relates to a high-altitude extra-high voltage transformer partial discharge test interference identification and suppression method, and belongs to the technical field of high-altitude region electrical equipment insulation state detection. In order to solve the technical problems that interference signals and real discharge signals are difficult to distinguish and the signal-to-noise ratio is low in the partial discharge test of the extra-high voltage transformer in the high-altitude environment, the method combines instantaneous zero-crossing density analysis and wavelet packet multi-scale feature extraction; according to the method, a multi-dimensional criterion fusing energy features, zero-crossing features, time-domain shape features and altitude correction factors is constructed, an adaptive interference discrimination rule is established, a frequency domain and time domain combined suppression strategy is adopted, various interference signals are effectively identified and suppressed, meanwhile, waveform and amplitude information of real partial discharge pulses is reserved to the maximum extent, and the suppression precision is improved. Therefore, the signal-to-noise ratio and the reliability of a partial discharge measurement result are remarkably improved, and key technical support is provided for accurate evaluation of the insulation state of the high-altitude extra-high voltage transformer.

The invention discloses an extra-high voltage transformer bushing transient temperature rise rapid prediction method, which comprises the steps of constructing a simulation model of an extra-high voltage transformer bushing, and simulating and extracting global node temperatures and corresponding working condition parameters of a bushing profile at multiple moments to form a data set; selecting global node temperature to perform orthogonal decomposition, and selecting first r-order modals to construct a modal matrix according to cumulative energy proportion truncation; projecting global node temperature in the data set to a modal space according to a modal matrix to obtain a modal coefficient vector as an output sequence, and performing sliding window on working condition parameters in the data set to form an input sequence; constructing a long-short-term memory network model, optimizing network hyper-parameters of the long-short-term memory network model, and training the model by adopting an input sequence and an output sequence to obtain a time sequence mapping model; and acquiring working condition parameters of the extra-high voltage transformer bushing in a to-be-measured time period, inputting the working condition parameters into the time sequence mapping model, predicting a modal vector at a future moment, and reconstructing transient temperature field distribution of the extra-high voltage transformer bushing in combination with inversion of a modal matrix.

The utility model discloses a high-voltage hand-hole-opening-free type transformer bushing structure which comprises an upper conducting rod, a capacitor core and a porcelain bushing which are sequentially and coaxially arranged from inside to outside, the top of the capacitor core is concentrically and coaxially sleeved with a supporting cap, the supporting cap is in limiting fit with the top of the upper conducting rod through a fixing pin, and the upper conducting rod is sleeved with the porcelain bushing. One side of the supporting cap is in equipotential connection with the capacitor core through a lead, the top of the porcelain bushing is detachably provided with a voltage-sharing sealing cover, and the voltage-sharing sealing cover is in sealing fit with the porcelain bushing and the supporting cap through sealing rings. A third metal gasket, a second metal gasket and a first metal gasket are sequentially and detachably arranged at the top of the pressure-equalizing sealing cover in the axial direction, the upper conducting rod sequentially penetrates through the third metal gasket, the second metal gasket and the first metal gasket and is in sealing fit with the third metal gasket, the second metal gasket and the first metal gasket through sealing rings, and a lower conducting rod is detachably and coaxially arranged at the tail of the upper conducting rod; the installation stability is ensured, and meanwhile, hand hole opening-free installation is conveniently achieved.

1. The name of the design product: high and low voltage pre-installed substation (for shield machine). 2. The use of the design product: a special power distribution cabinet designed for shield machine, which includes high voltage, transformer and low voltage three parts, among which the high voltage includes 12KV / 24KV system and the low voltage includes 400V / 690V system, which can be compatible with TN and low voltage system. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view 1. 5. The submitted view can clearly express, and the elevation view is omitted.

The invention discloses an extra-high voltage transformer side column folding screen installation structure and an installation method thereof. The installation structure comprises a side column folding screen body used for an extra-high voltage transformer side column. The side column folding screen body comprises a folding screen paperboard and a contraction band; two groups of folding screen paperboards are arranged, and a side column folding screen is formed between the two groups of folding screen paperboards; and the plurality of contraction bands are arranged on the two folding screen paperboards in a sleeving manner. According to the side column folding screen mounting structure for the extra-high voltage transformer, the iron core center and the lower end position of the folding screen paperboard are marked on the iron core pulling plate through a four-point overlapping method; center lines are marked at two ends of the folding screen paperboard; the positions of the supporting strips are marked on the folding screen paperboard; the positions of the contraction bands are marked on the outer side paperboards of the folding screen paperboards, the side column folding screen bodies are aligned when installed, and then installation of the side column folding screen bodies can be achieved.

The invention discloses a bus duct for high-voltage equipment connection and a high-voltage connection structure, and belongs to the technical field of high-voltage electrical equipment, and the bus duct comprises a housing which is internally provided with a channel penetrating through two ends, the channel is used for accommodating a bus bar, and the housing is an insulating material part; the multiple layers of bus bar groups are arranged in the channel at intervals in a layered mode, each layer of bus bar group comprises at least three bus bars, the at least three bus bars on the same layer are arranged at intervals, a gap is formed between the bus bar group and the inner wall of the shell, and the two ends of the bus bar group are located at the two ends of the shell respectively and used for being detachably connected with the high-voltage electrical equipment; the high-voltage connection structure comprises a bus duct, high-voltage power distribution equipment and a high-voltage transformer. Stable and reliable electrical connection is provided for high-voltage electrical equipment, it is ensured that the connecting position has high process quality, the heating phenomenon at the terminal head is effectively reduced, the occurrence rate of electrical faults is reduced, the technical requirement for operators is lowered, and meanwhile the construction cost is greatly saved.

An electrostatic filter module for an air cleaner includes a housing having an installation space configured to be sealed at least against ingress of liquid. The installation space has a high-voltage connection and a connection for lower voltage. Arranged in the housing are a separation unit and an ionization unit arranged in the housing, and a high-voltage transformer is accommodated in the installation space of the housing.

The utility model discloses a depilation instrument power supply, and relates to the technical field of depilation instruments. Comprising a shell and a DC power interface arranged at any position of the shell, a PCB is arranged in the shell, a low-voltage transformer and a high-voltage transformer are arranged on the PCB, the low-voltage transformer and the high-voltage transformer are electrically connected with the DC power interface through the PCB, and a high-voltage capacitor is further included. And the high-voltage capacitor is electrically connected with the PCB and is arranged in the shell. According to the utility model, the high-voltage capacitor is installed in the power supply of the depilation instrument, and the high-voltage capacitor is completely isolated from the handheld depilation instrument in the physical structure, so that the potential electric shock risk caused by the fact that the hand is too close to the high-voltage electrical module when a user holds and uses the depilation instrument is avoided.

This invention discloses an iterative tuning operating point static calibration method, electronic device, and storage medium, belonging to the field of static calibration technology. The iterative tuning operating point static calibration method includes placing an optical electric field sensor and calibration equipment within a Faraday cage; using an AC source connected to a high-voltage transformer to generate a power frequency electric field of known intensity through a pair of parallel electrode plates, with the optical electric field sensor positioned between the two plates; emitting polarized light to the waveguide of the optical electric field sensor and loading the electric field signal to be measured onto the light wave; converting the electric field signal into an analog electrical signal through a photoelectric conversion circuit; and demodulating and calculating the measured electric field value through a digital signal processing circuit. Static operating point calibration is performed in a power frequency electric field environment, and the linear operating point of the sensor is controlled using laser wavelength tuning and an iterative method, improving the stability and accuracy of the optical electric field sensor in a high-voltage electric field environment.

The invention relates to the technical field of insulating materials, and discloses a flame-retardant electrical insulating paste and application thereof, the insulating paste is formed by independently packaging a component A and a component B; the component A comprises bisphenol A epoxy resin, polycaprolactone diol, aluminum diethylphosphinate, zinc borate, an epoxy group functionalized silane oligomer and the like; the component B comprises methylhexahydrophthalic anhydride and zinc acetylacetonate; a component A is prepared through a melt coating and thermal dilution process, and filler dispersion and interface modification are assisted by using molten polycaprolactone; according to the insulating glue, the process viscosity is effectively reduced by utilizing the phase change characteristic of polycaprolactone, a cured product is endowed with cold and heat impact toughness, a damp and heat aging resistant interface is constructed through the silane oligomer, and a high flame retardant grade is realized by combining a halogen-free flame retardant system. The product provided by the invention has excellent potting manufacturability, cracking resistance and aging-resistant insulativity, and is suitable for potting protection of a driving motor and a high-voltage transformer of a new energy automobile.

The invention discloses a heavy moving flatcar for an extra-high voltage transformer, and relates to the technical field of heavy moving flatcars, the heavy moving flatcar comprises a supporting plate, one side of the supporting plate is fixedly connected with a supporting column, and the upper side of the supporting column is fixedly connected with an alarm lamp used for giving an alarm when the weight is overweight and placed above the flatcar. One side of the supporting column is fixedly connected with a camera used for shooting the surface of the extra-high voltage transformer, the lower side of the supporting plate is evenly connected with four electric rolling wheels used for driving the flatcar to move through bearings, and the ten arranging mechanisms slide on the U-shaped sliding rail at the same time. Therefore, each arrangement mechanism without the extra-high-voltage transformers is sequentially driven to the position below a travelling crane of a worker, the worker can quickly place each extra-high-voltage transformer above a flat car, and the situation that the travelling crane regulates the extra-high-voltage transformers to move and place in different directions for many times is effectively prevented; and the phenomenon that the time for placing the extra-high voltage transformer above the flat car is prolonged is avoided.

The invention discloses a transformer area voltage monitoring method and device based on photovoltaic access, terminal equipment and a storage medium, and belongs to the field of transformer area voltage monitoring. The method comprises the following steps: acquiring rated voltage of each to-be-monitored power transformer area and a plurality of voltage acquisition data of each monitoring point in a preset time period; according to the voltage acquisition data and a rated voltage, determining a corresponding high grid-connected voltage frequency when the voltage acquisition data of each monitoring point is a high grid-connected voltage; taking the current monitoring point as a high-voltage monitoring point under the condition that the high grid-connected voltage frequency is greater than a preset high-voltage frequency threshold value; monitoring the number of high-voltage monitoring points in each to-be-monitored power transformer area; comparing the number of the high-voltage monitoring points with a preset high-voltage point number threshold value; and under the condition that the number of the high-voltage monitoring points is greater than a preset high-voltage point number threshold value, determining that the current to-be-monitored power transformer area is a high-voltage transformer area. According to the invention, the problem that the high voltage of the transformer area caused by photovoltaic access cannot be accurately identified in the prior art can be solved.

An ignition system for an internal combustion system has a power source for passing a DC voltage, a push-pull isolating transformer connected to the power source so as to increase the voltage from the power source and convert the DC voltage to AC voltage, a high-voltage transformer having a primary winding connected to an output of the push-pull isolating transformer, and a spark plug connected to a secondary winding of the high-voltage transformer. The high-voltage transformer increases the voltage from the push-pull isolating transformer to a voltage that fires the spark plug.

The invention relates to a riveted high-voltage transformer, which belongs to the technical field of transformers, and comprises a transformer shell, the transformer shell is formed by stacking a plurality of transformation sheets, the transformer shell is provided with a plurality of slotted hole groups, the plurality of slotted hole groups are distributed on the transformer shell in an arrayed manner, and each slotted hole group comprises a riveting slotted hole, a plurality of connecting slotted holes and a plurality of connecting screws. The plurality of connecting slotted holes are formed in the transformer shell at equal angles around the central axis direction of the riveting slotted hole, the connecting slotted holes are formed beside the riveting slotted hole, the plurality of connecting screws are matched with the plurality of connecting slotted holes in a one-to-one correspondence manner, any connecting screw is arranged in the corresponding connecting slotted hole, and the riveting slotted hole is formed in the transformer shell. The riveting groove holes are used for riveting connection of the rivets to the voltage transformation pieces, and the connecting screws are used for limiting the deformation degree of the riveting groove holes.

1. Name of the product in this design: High-pressure air passage strip. 2. Application of this design: This design is used for the insulation structure support of high-voltage transformers. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design points: Combined state diagram 1.

The utility model belongs to the technical field of transformer cooling, and particularly relates to a mixed flow exchange type efficient cooling device special for an extra-high voltage transformer, which comprises a transformer main body, a heat dissipation mechanism is arranged on one side of the transformer main body, and a drainage fan is arranged below the heat dissipation mechanism; wherein the heat dissipation mechanism comprises heat dissipation fins, the heat dissipation fins are wound to form a roll-shaped structure, the outer side ends of the heat dissipation fins are connected to the transformer body, the heat dissipation fins in the heat dissipation mechanism are of the roll-shaped structure, the heat dissipation area between the heat dissipation fins and air is increased, and the occupied space of equipment can be reduced; in addition, the drainage fan is additionally arranged below the cooling fins, the air flowing speed on the outer sides of the cooling fins can be increased, and then the cooling efficiency of the equipment is improved; and the rainproof cylinder is arranged at the top end of the cooling fin, so that rainwater can be prevented from flowing into the drainage fan along the air duct, the risk of equipment operation is reduced, and the equipment is prevented from being damaged.

The application discloses a kind of discharging protection circuit of X-ray tube, the discharging protection circuit includes high voltage control unit, sampling unit and high voltage transformer component;Control program in high voltage control unit in the application, for controlling the KV and MA value output by high voltage generating device;Double-sided copper-clad plate large-area grounding process and impulse current absorption loop are used in sampling unit, and cooperate with the discharge protection resistance in high voltage transformer component Limiting discharge impulse current, for inhibiting the impact caused by X-ray tube discharge on X-ray generating device.Using this circuit structure, the damage caused by X-ray tube discharge on X-ray generating device is eliminated, the working stability of the product is improved, and at the same time, the use requirements for X-ray tube are reduced.Because the price of X-ray tube accounts for a large proportion of the entire X-ray generating device, selecting a lower-priced domestic X-ray tube can reduce the cost of X-ray generating device, and facilitate the popularization of the product to primary hospitals.

The invention relates to the technical field of rail-mounted gantry crane power supply, and discloses a rail-mounted gantry crane electric control system which comprises a ground power supply unit which comprises a high-voltage wire inlet cabinet, a high-voltage transformer, a low-voltage wire inlet cabinet, a reactance cabinet and a rectifier cabinet which are electrically connected in sequence, the input end of the high-voltage wire inlet cabinet is connected with a power grid; the input end of the common direct current bus is connected with the output end of the rectifier cabinet; the input end of the auxiliary power line is connected with the alternating current output end of the low-voltage wire inlet cabinet; and the rail-mounted crane mechanism is connected to the common direct-current bus and the auxiliary power line in parallel. The high-voltage wire inlet cabinet, the low-voltage wire inlet cabinet, the reactance cabinet and the rectifier cabinet are integrated on the ground power supply unit, so that complicated high-voltage power supply and rectifier equipment is prevented from being independently arranged on each rail-mounted gantry crane mechanism, the total quantity and investment cost of the equipment in the rail-mounted gantry crane mechanism can be reduced, the electric energy transmission efficiency is improved, and the energy loss is reduced.

The utility model discloses a high-voltage transformer based on a high-magnetic iron powder core, which relates to the technical field of medical equipment and comprises a high-voltage transformer component and outer cover components, the outer cover components are arranged outside the high-voltage transformer component in a bilateral symmetry manner, and side baffles are inserted on the sides, far away from the vertical central axis of the high-voltage transformer component, of the outer cover components. According to the high-voltage transformer based on the high-magnetic powder core, the outer cover assemblies are symmetrically arranged on the left side and the right side of the extra part of the high-voltage transformer assembly, so that on one hand, a certain degree of structural protection can be provided for the high-voltage transformer assembly, and structural collision on the two sides is reduced as much as possible; on the other hand, structural reinforcement can be provided for the high-voltage transformer assembly so as to ensure the installation stability, and good structural shielding and protection can be provided at the two ends of the high-voltage transformer assembly under the condition that structural wiring and ventilation and heat dissipation are not affected by using the side baffles and the stabilizing columns.

The high-voltage transformer comprises a magnetic core with a core column, an insulating inner cylinder sleeved outside the core column, and a low-voltage coil and a high-voltage coil which are wound outside the insulating inner cylinder, the high-voltage coil is sequentially coated with an inner insulating layer, an inner shielding layer, a first insulating pressure-bearing layer and an outer shielding layer from inside to outside, the outer shielding layer is grounded, and the inner shielding layer is electrically connected with the high-voltage end of the high-voltage coil. According to the high-voltage transformer, the double-shielding-layer structure of the inner shielding layer and the outer shielding layer is adopted, the voltage of the high-voltage coil is borne by the first insulation pressure bearing layer, the insulation stress peak value and the partial discharge risk can be reduced, and high-voltage insulation under high power density is achieved; and moreover, the electrical clearance can be greatly reduced, the overall size of the high-voltage transformer is reduced, and the high-voltage transformer can be used in a small-sized, high-reliability and high-power-density scene.

The utility model relates to the field of high-voltage transformer shells, and discloses a dust-proof and explosion-proof high-voltage transformer shell which comprises a shell, a rectangular notch is formed in the top of the shell, a cover plate is arranged at the top of the shell, a mounting support is arranged in the shell, and a rectangular protruding block is integrally formed in the position, corresponding to the rectangular notch, of the cover plate. The dustproof and explosion-proof high-voltage transformer shell comprises a shell, a rectangular notch is formed in the side wall of the shell, a rectangular protruding block is arranged in the rectangular notch, the rectangular protruding block can be inserted into the rectangular notch, an insertion assembly is arranged on the side face of the rectangular protruding block, a heat dissipation assembly is arranged in the shell, a rectangular groove is formed in the side wall of the shell, and an explosion-proof layer is arranged in the rectangular groove. The high-voltage transformer can be installed in the shell and the cover plate, effective protection of the high-voltage transformer is achieved, the situation that dust is accumulated on the transformer, the heat dissipation performance of the transformer is affected, meanwhile, performance reduction is caused is prevented, and the situation that safe and stable operation of the transformer and the reliability of a whole power system are seriously threatened is prevented.

The invention provides a high-voltage transformer winding vibration buffering device, and belongs to the technical field of high-voltage transformers, the high-voltage transformer winding vibration buffering device comprises a bearing plate and a winding body, the upper surface of the bearing plate is provided with a bottom buffering assembly, and the winding body is internally provided with an internal buffering assembly. According to the invention, through the arrangement of the bottom buffer assembly and the utilization of a dual-damping buffer structure, the pressure and vibration on the winding body can be effectively weakened from two different directions, the influence of vibration on the winding body is greatly reduced, the stability of the winding body during operation is improved, the part loss caused by vibration is also reduced, and the service life of the winding body is prolonged. The service life of the whole device is prolonged; through the arranged internal buffer assembly, effective buffer protection can be formed in the winding body, the influence of internal vibration on the winding structure is reduced, the risk that internal parts are damaged due to vibration is reduced, more comprehensive buffer protection can be formed through cooperation with the bottom buffer assembly, and the service life of the whole equipment is prolonged.

The invention discloses a carbon emission monitoring and early warning system for the full life cycle of an extra-high voltage transformer substation, and relates to the technical field of data processing. Comprising a carbon emission monitoring module which is used for carrying out carbon emission monitoring on a target extra-high voltage transformer substation under the condition that the target extra-high voltage transformer substation is in an operation stage, and obtaining monitoring data of each monitoring device on the target extra-high voltage transformer substation; the abnormity identification module is used for determining carbon emission abnormity moments monitored by the monitoring devices based on the monitoring data for the monitoring devices; the type identification module is used for identifying the carbon emission abnormity type at each carbon emission abnormity moment based on the data fluctuation condition of the monitoring data at each carbon emission abnormity moment; and the grading early warning module is used for carrying out grading early warning on the target extra-high voltage transformer substation based on the abnormal severity degree of the carbon emission abnormal moment aiming at the carbon emission abnormal moment of which the carbon emission abnormal type belongs to the target carbon emission abnormal type. According to the invention, the accuracy of carbon emission early warning can be improved.

The invention discloses a method for automatically adjusting the operation state of a high-altitude extra-high voltage transformer. The method comprises the following steps: collecting multi-dimensional actual measurement data of the high-altitude extra-high voltage transformer during historical operation; constructing an electric-magnetic-thermal multi-physical field finite element simulation model of the high-altitude extra-high voltage transformer, calculating the winding temperature rise of the transformer according to the multi-dimensional actual measurement data, enhancing the multi-dimensional actual measurement data, and constructing to obtain an actual measurement data set; according to the actually measured data set, through a KF-PRGO-LSTM algorithm, a high-altitude extra-high voltage transformer frequency sensitivity model representing a transformer frequency-temperature nonlinear mapping relation is constructed; in the operation process of the transformer, the high-altitude extra-high voltage transformer frequency sensitivity model is periodically called, the winding temperature rise of the transformer is predicted according to real-time multi-dimensional actual measurement data, and then the operation state of the transformer is adjusted. According to the method, prediction and dynamic control of the temperature rise trend are realized, so that the operation safety and the energy efficiency level of the extra-high voltage transformer in the high-altitude area are improved.