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How to do electric transformer calculations? 


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To perform electric transformer calculations, various methods and models can be utilized. One approach involves establishing a multi-field coupling calculation model using finite element analysis software like ANSYS to analyze electromagnetic vibration and noise in power transformers . Another method includes developing a mathematical model considering differential electromagnetic parameters and approximating the magnetic system of the transformer with a planar circuit . Additionally, a calculation method for a composite electric field of a converter transformer, considering temperature gradients, involves establishing fluid-temperature and electric field models, and analyzing the composite electric field under different temperature conditions . Furthermore, a transformer electromagnetic vibration noise calculating method based on the finite element method can be employed, which considers all noise influence factors and provides accurate results for vibration and noise analysis .

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The transformer noise calculating method involves determining surface area, measuring noise, and calculating safe distances. It's a simple, efficient process applicable to various transformer shapes.
The transformer electromagnetic vibration noise calculating method involves establishing grid models, conducting electromagnetic simulations, FFT analysis, harmonic response analysis, and sound field calculation for accurate noise prediction.
The calculation method involves determining transformer core and winding losses, establishing fluid-temperature and electric field models, and analyzing the composite electric field considering temperature gradients for accurate results.
The paper proposes a mathematical model for transformer calculations based on a planar circuit approximation with single magnetic flux, utilizing core material properties and geometric dimensions.
The paper utilizes ANSYS to establish a multi-field coupling model for power transformers, calculating electromagnetic vibration and noise by integrating electromagnetic, structural, and sound fields.

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