11 results about "Amorphous metal transformer" patented technology

The application provides a kind of amorphous alloy transformer short circuit resistance evaluation method, it is related to amorphous alloy transformer technical field. Including: determining the design parameter of amorphous alloy transformer, according to design parameter corresponding electromagnetic calculation model and structure calculation model are established;Set the material attribute, coil turns of electromagnetic calculation model and boundary condition, carry out eddy current field calculation, obtain the leakage magnetic distribution and Lorentz force distribution in coil under different short circuit fault conditions;Set the material attribute, contact relationship and boundary condition of structure calculation model;According to conservative interpolation method, short circuit force density distribution is mapped to structure calculation model, statics analysis is executed, and the stress and strain corresponding to coil position are obtained;The short circuit resistance of amorphous alloy transformer under each short circuit fault condition is evaluated, and the corresponding evaluation result is obtained.The application solves the problem of long time consumption and low efficiency in the prior art of amorphous alloy transformer short circuit resistance evaluation.

The present application relates to a kind of large-capacity energy-saving amorphous alloy transformer, including shell piece, winding assembly and heat dissipation piece, the outside of shell piece is sleeved with heat dissipation piece, the internal cavity of shell piece is provided with winding assembly, the internal cavity of shell piece contains insulating liquid, winding assembly is soaked in insulating liquid. By using 1K101 high permeability amorphous alloy core, the no-load loss is greatly reduced, the leakage magnetic is reduced, and the energy-saving effect is improved. Through the cooperation of rectangular core and coil cross-section structure, the weight of the core is reduced, the material is saved, and the operating noise is reduced.

The invention provides a high-strength amorphous alloy three-dimensional wound core transformer which comprises three groups of iron core columns with equilateral triangle closed structures, and the three groups of iron core columns are sequentially spliced and connected to form a symmetrical three-phase magnetic circuit; the iron core column is prepared by winding an amorphous alloy strip; the surface of the amorphous alloy strip is coated with a reinforcing layer; the three groups of equilateral triangle closed structure iron core columns are spliced to form a symmetrical three-phase magnetic circuit, and the problems that the amorphous alloy transformer is low in mechanical strength, asymmetric in magnetic circuit and low in space utilization rate are jointly solved in combination with the amorphous alloy strip wound iron core columns and the reinforcing layers coated on the surfaces of the amorphous alloy strip wound iron core columns.

This invention provides a low-noise amorphous alloy three-dimensional transformer. The invention relates to the field of amorphous alloy transformer technology, and includes an internal noise reduction mechanism installed inside the transformer body and a second noise reduction component installed on the outside of the transformer body. The transformer body includes a housing, heat sinks, an oil tank, and a core module. The oil tank and core module are installed inside the housing, and the heat sinks are fixed to the outside of the housing. The internal noise reduction mechanism includes a buffer component, a first noise reduction component, a mounting component, and a barrier chamber. Through the coordinated use of the buffer component, the first noise reduction component, and the second noise reduction component, this solution establishes a three-level coordinated noise reduction system of "source vibration reduction, near-field isolation, and remote shielding." The vibration of the core module is directly absorbed by an air spring, and the double-layer structure of the barrier chamber and the outer protective cover achieves full-path blocking of solid-borne sound and airborne sound, ultimately meeting the most stringent quiet zone standards for noise emission.

The invention provides a large-capacity oil-immersed amorphous alloy transformer new energy box body, the box body is of a subdivision type structure, the subdivision type box body comprises a high-voltage chamber, a transformer cabin and a low-voltage chamber, and the high-voltage chamber and the low-voltage chamber are respectively arranged on two sides of the transformer cabin; an oil tank is arranged in the transformer cabin, and a stress isolation chamber mounting structure is arranged between the oil tank and the bottom of the transformer cabin; according to the structure, stress conduction caused by the fact that an iron core serves as a main bearing structure of a traditional box body is effectively avoided, the amorphous alloy iron core is prevented from being fractured or deteriorated due to stress, and therefore long-term stable operation of the transformer is guaranteed.

The utility model relates to the technical field of transformers, in particular to an oil-immersed amorphous alloy transformer oil tank which comprises a tank body, a plurality of sets of installation frames are fixedly connected to the bottom of the tank body, a cover plate is arranged on the top of the tank body, a plurality of sets of hanging rings are fixedly connected to the top of the cover plate, and a plurality of sets of hanging lugs are fixedly connected to the outer side of the tank body. The outer side of the box body is provided with a plurality of groups of cooling fins, the box body is provided with a dismounting and mounting assembly which is convenient for dismounting and mounting the cover plate, and the box body is provided with a maintenance assembly which is convenient for maintaining and replacing the cooling fins. During maintenance, the moving block can be quickly separated from the connecting block, so that the cover plate can be conveniently lifted through the lifting ring, and the internal maintenance efficiency of the transformer is greatly improved; during installation, the moving block enters the inner cavity of the connecting block, the cover plate is tightly pressed on the top of the box body under the action of the inclined plane, operation is simple and efficient, and workers can overhaul and maintain the interior of the transformer conveniently.

The present application relates to the technical field of transformer, specifically to a large-capacity oil-immersed amorphous alloy transformer, which comprises a transformer body and an oil pillow fixedly installed at one end of the top of the transformer body, the inside of the oil pillow is provided with a capsule, the top of the capsule is fixedly installed with an air pipe, the outside of the bottom end of the air pipe is fixedly installed with a limiting ring plate, the inside of the oil pillow is provided with a protection frame, both ends of the top of the oil pillow are fixedly installed with sliding rails, both ends of the top of the protection frame are fixedly installed with sliding strips, the air pipe is clamped by the clamping mechanism, after the whole protection frame is pushed into the fixed position of the oil pillow, the position of the connecting flange two on the top of the capsule corresponds to the position of the connecting flange one, the position of the connecting flange two does not need to be repeatedly adjusted, the alignment difficulty of the connecting flange two and the connecting flange one is reduced, and the installation time of the capsule is reduced.

This invention relates to the field of transformer measurement and testing, specifically to a method and system for detecting core loosening in amorphous alloy transformers. First, vibration, current, and temperature data are simultaneously acquired, and wavelet packet decomposition is used to extract the vibration energy characteristics of fine frequency bands. Then, a magnetostrictive model is constructed by combining the load current and its rate of change to obtain the equivalent excitation potential energy, and the nonlinear effects of load and temperature are decoupled by calculating the structural response impedance spectrum. Based on this, the trapezoidal integral method is used to calculate the hysteresis loop area of ​​impedance changing with temperature, quantifying the thermo-mechanical nonlinear loss of the core, and finally obtaining normalized detection indicators for graded early warning. This invention can effectively eliminate interference from varying operating conditions, accurately capture the loosening characteristics of the core caused by thermal accumulation effects, and significantly improve the robustness and accuracy of monitoring.

This invention discloses a vibration and noise suppression system and vibration reduction optimization method for amorphous alloy transformers, belonging to the field of vibration reduction and noise reduction technology for amorphous alloy transformers. The system adopts a three-layer collaborative structure of root source weakening, path blocking, and real-time control, including a core root source vibration reduction module, a multi-path vibration blocking module, and a real-time monitoring and control module. The core root source vibration reduction module uses an adaptive winding structure and a customized negative supermagnetostrictive composite material layer; the multi-path vibration blocking module uses a double-layer composite vibration reduction structure and a suspended transformer assembly process; and the real-time monitoring and control module realizes data acquisition and dynamic control. The method includes optimization of core winding and annealing processes, optimization of vibration reduction structure parameters, and optimization of dynamic control strategies. This invention addresses the problems of limited vibration reduction effect, easy resonance, and poor stability in existing technologies through multi-dimensional collaborative vibration reduction, balancing practicality and economy, improving the operational stability of amorphous alloy transformers, and has broad application prospects.

The invention relates to the technical field of power transformers, and discloses a solid buried amorphous alloy transformer, which comprises a pit, a box body and a water collection box, and further comprises a transformer body arranged in the box body, and a diversion air inlet piece arranged at the bottom of the transformer body; the air inlet pipe penetrates through the water collecting box and the box body and then is communicated with the flow guide air inlet piece; the buffer mechanism is arranged between the transformer body and the box body, and when the temperature of the transformer body rises, the rigidity of the buffer mechanism is increased; the Venturi tube is communicated with the buffer mechanism and is used for converting the vibration energy of the buffer mechanism into airflow power; the pre-cooling assembly is arranged between the water collecting box and the air inlet pipe, is driven by the Venturi pipe and is used for intermittently cooling air in the air inlet pipe; the supporting rigidity and the heat dissipation effect of the transformer can be adjusted in a self-adaptive mode according to the working state of the transformer, meanwhile, the drainage problem of the transformer is solved, and the operation safety of the transformer is improved.

The invention relates to an amorphous alloy three-dimensional wound core stress detection device and detection method, and belongs to the technical field of power equipment monitoring. Comprising a pressure monitoring system which comprises a plurality of uniformly distributed pressure sensors and is used for monitoring pressure distribution between a transformer iron core and an iron yoke cushion block at the upper end of a coil; the intelligent control module is connected with the pressure monitoring system and used for processing the pressure data and generating a control instruction; the multi-channel driving module is connected with the intelligent control module; the plurality of servo motor systems are respectively connected with the multi-channel driving module; and a rotor of each servo motor is connected with the corresponding pull screw rod through a transmission mechanism. Through multi-sensor cooperative monitoring and independent servo control, the uniformity of pressure distribution of the transformer iron core is improved, and meanwhile the manufacturing quality and the use performance of the amorphous alloy transformer iron core are improved.