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In power systems, varieties of insulation materials are used to protect the high voltage power apparatus such as transformer, switchgear, current transformer, potential transformer etc. One of the most common liquid insulating materials used as a dielectric medium in transformers is the transformer oil. The transformer oil is degraded due to the combination of the ageing processes such as partial...
In electrical power systems, high voltage power transformers are used to transfer the power from one substation to another. The insulation of the high voltage power transformers are gradually deteriorated due to electrical, chemical and mechanical stresses caused by the partial discharges (PDs). It is well established from several studies that PDs are the major source of insulation failure in HV power...
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