Özet:

Transformers are generally designed to be operated on linear loads. But in recent years, with the increase in the percentage of nonlinear loads in total loads, designs that can work under these conditions are needed. With the increase in the harmonic rates of the currents passing through the transformator shells, more heat is formed in both the shells and nuclei of the transformator and leads to a decrease in operating efficiency. Another important effect of non-real loads is that the vibration density values are increased, leading to the decrease in the service life of the transformers' nuclei and shells. Increased vibration widths and degrees both create noise pollution and lead to a change in the transformator's memory values. To ensure that the defect diagnosis and protection functions of the transformers can be performed in full, it can be possible not only by electrical and thermal parameters such as current voltage but also by the full measurement of mechanical parameters such as vibration. Therefore, it is necessary to monitor the vibration signals of the transformers and to determine the shift limits under changing working conditions. For this purpose, in the study, the electromagnetic analyses of an irradiation transformator with a memory power of 500kVA under non-linear different load conditions were obtained, then the vibration values corresponding to these values were determined and the results were.

Anahtar Kelimeler: