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Since AC traction loads are usually large single-phase loads with a non-linear nature, they create power quality problems, such as high contents of Negative Sequence Current (NSC), low power factor, harmonic injection, etc. To overcome above issues, a Hybrid Traction Power Quality Compensation System (HTPQCS) based on a three-phase Full-Bridge Converter (FBC) and two Static VAR Compensators (SVCs)...
Pantograph of an en-energized train may never run through n neutral section. As it does so, the arc generated across the pantograph will likely short the two feeding lines together at both sides of the neutral section where two phases are separated, The fault is called out-of-phase short-circuit fault for which short two out-of-phase feeding lines. Traditional feeder distance protection and current...
At present, gas protection and current differential protection are generally used as the main protection for traction transformer in China high-speed railway. Overcurrent protection with busbar low-voltage start-up is used as the backup protection installed at HV side and LV side of transformer. This paper introduces the principle of overcurrent protection with busbar low-voltage start-up, and then...
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