Power transformers are most imperative and critical element in electrical power system grid.
To have a consistent electricity supply it is obligatory to give substantial attention for upkeep …

Condition monitoring of an operating apparatus is essential for lifespan assessment and
maintenance planning in a power system. Electrical insulation is a critical aspect to be …

In spite of many research efforts on fault diagnosis using frequency response analysis (FRA)
method, there is still no universally accepted and systematic interpretation technique for …

Predictive maintenance strategies have gained popularity in recent years due to the
advantages they provide over traditional maintenance strategies. Online monitoring …

Dissolved gas analysis (DGA) is a widely-used method to detect the power transformer
faults, because of its high sensitivity to small amount of electrical faults. The DGA is exploited …

This contribution is aimed at obtaining diagnosis criteria for detection of low-level short
circuit faults throughout sweep frequency response analysis (SFRA) measurements on the …

This paper presents a comprehensive review of various techniques of partial discharge (PD)
localization. The technologies reviewed are acoustic, ultra-high frequency (UHF), optical …

The UHF signals are generated due to partial discharges formed by particle movement in
Gas Insulated Switchgears (GISs). It is observed that the bandwidth of UHF signals …

Background noise is a major problem in online Partial Discharge (PD) detection. Particularly
in large hidro-generator windings, PD pulses originated in locations far from the PD sensors …

Partial Discharge detection is an important tool for diagnosis of High Voltage insulation
systems. The Phase Resolved Partial Discharge (PRPD) data obtained from Partial …