Risk Priority Evaluation for Power Transformer Parts Based on Intuitionistic Fuzzy Preference Selection Index Method

Table 7

The values of preference variation, overall preference variation and PSI.

Parts	Probability of occurrence	Severity	Detectability
Winding	<0.35, 0.60>	<0.85, 0.10, 0.05>	<0.65, 0.25, 0.10>
Iron core	<0.20, 0.70>	<0.85, 0.10, 0.05>	<0.50, 0.40, 0.10>
Bushing	<0.05, 0.85>	<0.65, 0.25, 0.10>	<0.35, 0.55, 0.10>
Body	<0.10, 0.85>	<0.75, 0.15, 0.10>	<0.50, 0.40, 0.10>
Non electric protection	<0.01, 0.94>	<0.50, 0.40, 0.10>	<0.75, 0.15, 0.10>
Tap changer	<0.10, 0.85>	<0.65, 0.25, 0.10>	<0.25, 0.65, 0.10>
Cooling system	<0.01, 0.95>	<0.25, 0.65, 0.10>	<0.35, 0.55, 0.10>