A g c n e r a l~e~ method for simultaneous h i & analysis in electrical powm ,system is proposed in this paper. The method is based on, tha: admittance-type represcrahtiori of power-system sequencc' networks. After defining suitable: boundary conditions for' :series faults in t e r m of bus quantities, the reduced negative and zero sequcnce equation!; at the faulted buses are determined. Then, a siniplc procedure is suggested for obtaining the augmented positive sequence admittance ma,trix of the faulted power system. The suggested procedure prows useful to analyze any combination of faults without limit of number, type (balanced or unbalanced), phase, or locatioii of fault. Moreover, sparse-matrix techniques arid optinl;rlly reordered triangular factorisation can be easily implemented to optimize the computer resources. The method can bc easily integrated in exist. calculation progranis tIrroargb a separate subroutine.A simple test -system is considered to illustrate thc potentials of the suggested1 procedure.