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This paper describes the activities of CIGRE WG C4.27 “Benchmarking of Power Quality Performance in Transmission Systems”. The WG was established in December 2012 in recognition of demand for coherent set of guidelines for benchmarking power quality performance in existing and future transmission networks. During the work the members of the WG have compiled extensive material related to the state...
This paper presents a methodology for studying and specifying incremental and aggregated harmonic distortion emission limits from multiple harmonic sources that are connected to the utility network in close proximity and/or electrically are close to each other. The methodology specifically concentrates on traction loads and includes the development of combined equivalent circuits for the harmonic...
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