An Online UPS System That Eliminates the Inrush Current Phenomenon While Feeding Multiple Load Transformers

Systematization of the Simulation Process of Transformer Inrush Current Using EMTP

“…References [1][2][3][4][5] studied the discrimination strategies between transformer faults and inrush current. References [6][7][8][9][10][11][12][13] studied the reduction techniques of inrush current. Moreover, [6][7][8][9] studied the controlled energization of transformers, while [10,11] studied the utilization of uninterrupted power supply and photovoltaic systems.…”

“…References [6][7][8][9][10][11][12][13] studied the reduction techniques of inrush current. Moreover, [6][7][8][9] studied the controlled energization of transformers, while [10,11] studied the utilization of uninterrupted power supply and photovoltaic systems. In addition, [12][13][14][15][16][17] studied the power quality and protection of power systems by inrush current.…”

“…Reference [16] used Electromagnetic Transients Program-Restructured Version (EMTP-RV). Reference [17] used DigSILENT software, and [11] performed laboratory experiments. References [8,12,13] did not provide any simulation software information.…”

“…References [8,12,13] did not provide any simulation software information. References [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] did not provide detailed information for the simulation of the transformer inrush current.…”

A three-phase off-line UPS system for transformer coupled loads

“…These problems often disturb the process of manufacturing processes and lead to paraphernalia impairment [1,2]. Because UPS systems are intended to automatically deliver backup power to critical loads, an off-line UPS system takes over the load completely within a quarter cycle whenever a disturbance occurs on the utility.…”