With the advent of Substation Computer Systems dedicated to protection, control and data
logging functions in a Substation, it becomes possible to develop new applications which …

This paper presents a theoretical investigation of the capability of popular digital filters used
in relaying applications to suppress DC offset in current waveforms over a broad range of …

This paper presents a new approach to real-time fault classification in power transmission
systems using fuzzy-logic-based multicriteria approach. Only the three line currents are …

Sometime the operations that a relay is required to perform cannot be easily described in a
deterministic way. A significant example of this situation is given by the operations a line …

An approach to the estimation of steady state and instantaneous symmetrical components is
presented. The proposed method is based on an enhanced phase-locked loop mechanism …

Fault impedance is one of the major parameters that must be estimated accurately in digital
distance relaying application. In this paper, a new algorithm is proposed based on …

This paper presents an algorithm for digital protection of a three-phase, three-winding power
transformer. Simple recursive expressions are given for the harmonics using a sampling rate …

A transmission line distance relaying technique using an on-line trained neural network
(NN) is developed. Results of numerical simulation and experimental studies show very …

This paper focuses on some concepts that are to be considered to ensure interoperability of
phasor measurement units (PMU) during dynamic phenomena. Interoperability of devices in …

Sustained growth in the demand with unprecedented investments in the transmission
infrastructure resulted in narrow operational margins for power system operators across the …