In this contribution, experimental investigations onto the factors affecting the static
electrification of aged transformer oils are undertaken. The effect of aging byproducts (as …

The susceptibilit yof minera l oi lto oxidation under the conditions of its normal use in
electrical apparatu s ha s presented manufacturin g an d operatin g engineers wit ha …

Power systems and transformer are intrinsic apparatus, therefore its reliability and safe
operation is important to determine their operation conditions, and the industry uses quality …

This contribution is not only intended to provide a fresh review for researches on static
electrification, but also contains a sub-stantial amount of new material with a view of closing …

This paper deals with the partial‐discharge (PD) behaviour of some insulating fluids used in
transformers. The PD are generated on a needle‐plate electrode configuration. At first the …

It is a well-known fact that the service reliability of power transformers largely depends upon
the condition of the dielectric fluid. The steady deterioration (under the influence of the …

The dielectric strength, or breakdown voltage, of transformer oil measures its ability to
support non-defective electrical voltage. Since these oils must insulate under high electrical …

Insulation oil in power transformers serves as a heat transfer medium and as an insulating
liquid. Two reasons motivated for the investigation of its insulation properties: Firstly power …

Static electrification due to oil now causes many field failures of large forced-oil cooled
power transformers. Also, in practice under normal operating conditions, the oil volume in …

During operation of the transformer, the oil in it undergoes profound changes usually re-
ferred to as aging. The electrical insulating properties of it deteriorate, and sediments …