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This paper presents a study on differential protection for transmission lines and the effect of charging currents in it. It presents a characteristics analysis of the percentage differential protection and its representation in the alpha plane, the benefits imposed are analyzed. Trajectories for CT saturation in the alpha plane are presented. A hardware-in-the-loop was assembled in laboratory, where...
This paper presents a methodology to obtain the parameters of the equivalent circuit for induction motor from nameplate and manufacturer catalog data sheet information. The proposed method is straight and non-iterative. The variation of rotor parameters for deep bars or double cage rotors is modeled and presented as a function of the slip. The results of remarkable points such as the starting current,...
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