Interaction of Transformer Oil Parameters on Each Other and on Transformer Health Index Using Curve Estimation Regression Method

Table 12

Comparison the results of regression methods for independent and dependent variables.

Parameter (dependent)	Parameter (independent)	Regression type	R-square
Health index (HI)	Breakdown voltage (BDV)	Cubic	0.413
BDV	Water	Compound Growth Exponential Logistic	0.583
Furfural	Acidity	Inverse	0.569
IFT	Furfural	Power	0.644
BDV	CH4	Cubic	0.216
HI	CO2	Cubic	0.470
Furfural	CO	Cubic	0.622
Water	C2H6	Cubic	0.207
Acidity	C2H2	Cubic	0.111
Acidity	Water	Cubic	0.134