EMP-coupling to twisted-wire cables

An EMP (electromagnetic pulse) coupling to twisted-wire pair (TWP) cables above a ground reference plane is considered. The high-altitude EMP is represented by a plane wave. The TWP cable is simulated in the frequency domain as a multiconductor uniform line excited by nonuniform electromagnetic fields. EMP-induced effects are computed by using an efficient matrix procedure based on the transmission line model (TLM). The transient waveforms for any terminal load conditions are obtained by an inverse discrete Fourier transformation. The theoretical procedure is applied for evaluating the EMP-induced effects on a TWP cable for different electric and geometric configurations. The results obtained by the procedure are compared with those computed for a parallel wire-line. The transient wire-to-ground voltages are very similar for TWP and parallel wire configurations. The wire-to-wire voltages and wire currents depend on the polarization and the incidence angles of the EMP plane-wave.<<ETX>>

[1]  Clayborne Taylor,et al.  On the Response of a Terminated Twisted-Wire Cable Excited by a Plane-Wave Electromagnetic Field , 1980, IEEE Transactions on Electromagnetic Compatibility.

[2]  P. R. Barnes,et al.  A Multiconductor Model for Determining the Response of Power Transmission and Distribution Lines to a High Altitude Electromagnetic Pulse (HEMP) , 1989, IEEE Power Engineering Review.

[3]  M. Feliziani,et al.  EMP Coupling to Power Lines , 1988 .

[4]  Clayton Paul,et al.  Computation of the Transmission Line Inductance and Capacitance Matrices from the Generalized Capacitance Matrix , 1976, IEEE Transactions on Electromagnetic Compatibility.

[5]  Clayton R. Paul,et al.  Frequency Response of Multiconductor Transmission Lines Illuminated by an Electromagnetic Field , 1975, IEEE Transactions on Electromagnetic Compatibility.

[6]  M. Feliziani,et al.  A finite element technique for multiconductor cable parameters calculation , 1989 .

[7]  Ashok K. Agrawal,et al.  Transient Response of Multiconductor Transmission Lines Excited by a Nonuniform Electromagnetic Field , 1980 .

[8]  Clayton Paul,et al.  Prediction of Crosstalk Involving Twisted Pairs of Wires-Part I: A Transmission-Line Model for Twisted-Wire Pairs , 1979, IEEE Transactions on Electromagnetic Compatibility.

[9]  A. Ametani,et al.  A General Formulation of Impedance and Admittance of Cables , 1980, IEEE Transactions on Power Apparatus and Systems.

[10]  Jon G. Bredenson,et al.  Response of a Twisted Pair Excited by the Nonuniform Electromagnetic Fields of Nearby Loops , 1982, IEEE Transactions on Electromagnetic Compatibility.

[11]  M. Feliziani,et al.  EMP coupling to coaxial shielded cables , 1988, IEEE 1988 International Symposium on Electromagnetic Compatibility.

[12]  Flavio Canavero,et al.  Electromagnetic pulse interaction with multiconductor transmission lines , 1988 .