Comparative Performance Study of Dissolved Gas Analysis (DGA) Methods for Identification of Faults in Power Transformer

Table 11

Legends of the Duval triangle method [16].

PD	Partial discharge
	Thermal fault 150°C < Temp < 300°C
	Thermal fault 300°C < Temp < 700°C
	Thermal fault °C
	Low-energy discharge (sparking)
	High-energy discharge (arcing)
	Mix of electrical and thermal fault