Do You Know The Technical Measures Of Transformers?

(1) Use high-quality materials to make transformers

The transformer changes the network voltage through electromagnetic induction, and the main materials are silicon steel sheets and electromagnetic wires. The quality of these two materials directly affects the loss characteristics of the transformer. The loss formed by the transformer core during operation is generally called no-load loss. The loss value is constant and has no major relationship with the load rate of the transformer, and it is also inevitable. However, the advantages and disadvantages of magnetically conductive materials can change the size of its loss. The first generation of energy-saving transformers selected high-quality Q11 and Q10 cold-rolled grain-oriented silicon steel sheets, eliminated hot-rolled D44 and other silicon steel sheets, and combined with structural design improvements to reduce no-load torque by 40%. [5]

(2) Optimize design and improve process

Improving the loss characteristics of transformers from structural design and manufacturing technology is the main research topic for manufacturers. The application of electronic computers in transformer design has opened up broad prospects for the design work. Under the ideal ratio of copper (magnet wire) to iron (silicon steel sheet), the lowest loss and copper and iron consumption are the design goals. Make the high-quality material and the optimized design curve intersect at one point to obtain the best effect. The core structure is changed from the original direct seam to semi-straight, semi-oblique and fully oblique seams, which is a breakthrough improvement in structural design, which can make grain-oriented silicon steel sheets (that is, Q10 and Q11 widely used at present) in the core joint area The direction of magnetic permeability has been eased, reducing the no-load loss.