Sweep Frequency Response Analyzer

The transformer winding deformation tester is designed for power transformers with a voltage rating of 6 kV and above, as well as other transformers with special purposes. Power transformers are susceptible to various faults, such as short-circuit currents and physical collisions, during operation and transportation. These factors can subject the transformer windings to high electro-dynamic forces, which may lead to a loss of stability. Such forces can cause permanent deformations, including local distortion, swelling, or dislocation, all of which can severely affect the safe operation of the transformer.To measure the deformation of transformer windings, the frequency response analysis method is used, in accordance with the national standard DL/T 911-2004 for the electric power industry. This method involves detecting the amplitude-frequency response characteristics of each transformer winding and comparing the results vertically or horizontally. Any changes in the amplitude-frequency response characteristics are analyzed to identify potential winding deformations.

The Sweep Frequency Response Analyzer is designed for power transformers with a voltage grade of 66kV and above, as well as other special-purpose transformers. During operation and transportation, power transformers are vulnerable to impacts from fault short-circuit currents or physical collisions. These conditions can cause the transformer windings to lose stability due to the powerful electro-dynamic forces exerted by the short-circuit currents. This may lead to permanent deformations, such as local distortion, swelling, or dislocation, all of which can severely affect the transformer's safe operation.To assess the deformation of transformer windings, the frequency response analysis method is used in accordance with the national standard DL/T911-2016 and IEC 60076-18 for the electric power industry. This method involves detecting the amplitude-frequency response characteristics of each transformer winding. The results are then compared either vertically or horizontally to identify potential deformation, based on changes in the amplitude-frequency response characteristics.

The Sweep Frequency Response Analyzer is used for power transformer with voltage grade of 6kV and above and other transformers with special purpose. The power transformer is inevitably vulnerable to impulse of various fault short-circuit current or physical collision in the process of operation and transportation and the transformer windings may lose stability under the powerful electro-dynamic force exerted by such short-circuit current, which could result in permanent deformations such as local distortion, swell or dislocation and will severely affect safe operation of the transformer. Deformation of transformer windings is measured with frequency response analysis method according to national standard DL/T911-2016/IEC60076-18 for electric power industry, i.e. detect amplitude-frequency response characteristic of each transformer winding and make vertical or horizontal comparison of the detection result to judge possible deformation of the transformer winding based on change of amplitude-frequency response characteristics.