**7. Summary of all tested cases**

240 MATLAB – A Fundamental Tool for Scientific Computing and Engineering Applications – Volume 1

**Figure 29.** Increase of phase B & C currents due to the occurrence of the fault at 0.5 sec for loaded

**Figure 30.** Increase of phase A current due to the occurrence of the fault at 0.5 sec, for unloaded

transformer

transformer

**Table 1.** Summary of the performance of the designed differential relay at different types of disturbances that may occur to the power transformer
