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This paper presents a model of the underground shielded cable by using voltage and current electrical measurements available in voltage source. The cable modeling is based on the distributed parameters theory which takes into account both core and sheath. This model is applied to the real case of 150 kV cable posed in trefoil configuration, connecting substations of TYNA, TAPAROURA and SIDIMANSOUR,...
With the electricity market deregulation, the number of unplanned power exchanges increases. If these exchanges are not controlled, some lines may become overloaded. Network contingencies often contribute to overloading of branches, violation of voltages and also leading to problem security. This paper presents a procedure based on the contingency severity index (CSI) described by a real power flow...
We hereby report a theoretical study on the equilibrium geometries, electronic structures and harmonic vibrational frequencies of Ga2Se3, Ga3Se2 and their anions. The ground and low-lying excited states of Ga2Se 3− , Ga2Se3, Ga3Se 2− and Ga3Se2 are studied at the B3LYP and/or MP2 and CCSD(T) levels in conjunction with 6-311+G(d) and 6-311+G(2df) one particle basis sets. Ga2Se 2− adopts the C2...
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