Abstract—The proposed Thysristor based soft starter using will be simulating in PSCAD on a three-phase induction generator for limitation of Massive inrush current which is 34 times more than the generator current & cause Massive Mechanical stress on coupling, bearing gear & shaft of wind mill poly phase generator during connection with Grid. Experimental results shown a significant reduction i...

Abstract In order to effectively detect the waveform characteristics of closing inrush current distribution transformers and distinguish between magnetizing fault when closing, this paper proposes a new method based on neighborhood preserving embedding (NPE) principal component analysis (PCA) transformer detection method. This can process global local feature information data. First, NPE-PCA al...

This paper presents the characterization of transients resulting from faults in transformers using discrete wavelet transform (DWT). This characterization will aid in the development of an automatic detection method for internal incipient faults in the transformers. The detection method can provide information to predict failures ahead of time so that the necessary corrective actions are taken ...

This paper proposes a new algorithm for blocking the operation of Indirect Symmetrical Phase Shift Transformer (ISPST) differential relay when subjected to different operating conditions except internal fault condition. The proposed algorithm is amalgamation of Phase angle shift (PAS) threshold and Optimal Radial Basis Function Neural Network (ORBFNN). PAS between source and load side currents ...

A serious inrush current may occur when a power transformer is re-energized, which will cause many adverse effects on equipment and the grid. The corresponding potential hazards can be reduced if existing residual flux density (Br) accurately measured. Combined with field-circuit coupling analysis method, novel method for measuring Br based phase difference between applied AC voltage resulting ...