A new technique for power transformer protection, that depends on the calculation of fault
detection ratio (FDR) based on quartile of superimposed differential currents is presented …

This study presents a new power transformer protection scheme based on extraction of
positive and negative sequence components of superimposed differential currents. Different …

For safe operation of power systems, it is essential that the transformer protection operate
reliably if a fault occurs. There are many challenges in developing a fast and accurate …

This paper presents a new unit type protection for power transformer by combining
differential protection and phase angle comparison of sequence components of currents …

This paper describes a differential algorithm for the protection of a three-phase transformer
to differentiate transient phenomena, such as inrush currents and external faults from solid …

Conventional protection scheme of power transformer maloperation during abnormalities
such as inrush condition, current transformer (CT) saturation during external fault and high …

The main challenge in transformer protection is to find a fast and efficient differential relay
algorithm that isolates the transformer from the system causing least damage. Algorithm …

This paper presents a new adaptive differential protection scheme which efficiently adapts
the change in tap position of a power transformer. The proposed scheme is based on …

Day by day reliability is more concern with electricity issues and transformer itself is most
important equipment in supplying electricity. Discrimination between inrush current, CT …

The algorithms of the present generation of practical differential relays are based on two
methods. The first method is based on the ratio of the harmonic content of the differential …