Data-Driven Fault Diagnosis Method for Power Transformers Using Modified Kriging Model

Table 1

Data distribution of each fault type.

Fault type	Coding mode	Sample data	Test data
Normal		15	15
High temperature overheating		25	25
Medium temperature overheating		15	15
Low temperature overheating		9	9
Partial discharge		9	8
Low energy discharge		20	16
High energy discharge		20	23