current inversion condition leads to incorrect operation of current based directional relay in power system with series compensated device. application of the intelligent system for fault direction classification has been suggested in this paper. a new current directional protection scheme based on intelligent classifier is proposed for the series compensated line. the proposed classifier uses ...

We consider the series-connected Josephson transmission line (JTL), constructed from junctions, capacitors and (possibly) resistors. calculate velocity of shocks in discrete lossy JTL. study thoroughly continuum quasi-continuum approximations to JTL, both lossless lossy. In framework these we show that compact travelling waves JTL are kinks solitons, their velocities. On top each above mentione...

We report the complex optical conductivity of a superconducting thin film of Nb 0.5 Ti 0.5 N in an external magnetic field. The field was applied parallel to the film surface and the conductivity extracted from far-infrared transmission and reflection measurements. The real part shows the superconducting gap, which we observe to be suppressed by the applied magnetic field. We compare our result...

using new approaches to optimize the process of power transmission line routing can solve many complex problems which power transmission line routing decision-makers are faced. due to the expansion of involved parameters we can consider multi-objective evolutionary algorithms as appropriate method in this area. in this thesis with using multi-objective evolutionary algorithms nsga-ii and offere...

Multiple failures of transmission lines caused by climatic/atmospheric impact plague many electric power systems. Direct damage from such is quite huge, yet it marginal compared with the social reduction in supply electricity. As not economical to construct weatherproof lines, preventive actions should be employed most effective restoration, or reduce restoration time. A working group CIGRÉ (WG...

We have determined the individual transmission coefficients of Al quantum point contacts containing up to six conduction channels. The determination is based on a comparison of the highly nonlinear current-voltage characteristics in the superconducting state with the predictions of the theory for a single channel superconducting contact. We find that at least two channels contribute to the tran...