A Review on Properties, Opportunities, and Challenges of Transformer Oil-Based Nanofluids

Table 5

Partial discharge voltages (PDIV), impulse numbers, and partial discharge magnitudes measurement at 1.0 and 2.0 PDIV of mineral oil and nanofluid [19].

Materials	PDIV (kV)	SD	5% probability PDIV (kV)	63.2% probability PDIV (kV)	Measurements at 1.0 PDIV		Measurements at 2.0 PDIV
					Pulse number	Mean discharge magnitude (pC)	Pulse number	Mean discharge magnitude (pC)
Mineral oil	30.6	2.7	25	31.7	9	435	245	6062
Nanofluid	33.1	1.8	29.5	33.8	6	245	168	5180