**5.1 The result on ANFIS1 prediction for classifying types of fault**

Fig.17 shows the curve of a percentage error and a real target value for ANFIS1 prediction in classifying fault types in 47 buses practical system. The average percentage error for such power systems is 2E-5%. Meanwhile, the maximum percentage error for the same power system is 0.52%. From the result on ANFIS1 in classifying the types of fault in terms of integer 1 to 10, it can be said that the ANFIS module is able to show precise prediction.

Fig. 17. The result on ANFIS1 prediction for classifying types of fault in the 47 buses practical system.
