Electric and Magnetic Fields

[patderry]

Does anyone have formulae for calculating the electric and magnetic fields below a three phase double circuit towerline(i.e. a line supported by pylons)?

patderry

 

[dpc]

I'd suggest a power system text such as Elements of Power Systems Analysis by Stevenson. The equations get a little complicated for three-phase systems.

 

[jghrist]

There is a free program at

http://www.ece.utexas.edu/~grady/TOWERABC.html

that calculates electric and magnetic fields around three-phase lines.

 

[jbartos]

Suggestion: Electric and magnetic field below the tower may also be measured. Visit

http://www.narda-sts.de/pdf/fachartikel/22_felda.pdf

http://www.eirgrid.com/EirGridPortal/uploads/General Documents/Electro Magnetic Fields Booklet.pdf

http://www.goreway-station.com/environmental_report/Appendices/b_baseline_studies/b6_emf_study.pdf

etc. for more info

 

[jbartos]

Suggestion: References:
1. Behic R. Gungor "Power Systems," Harcourt Brace Jovanovic, Publishers, New York, 1988.
Chapters dealing with Transmission Lines

Traditional power systems books cover transmission line parameters, e.g. capacitance, inductance, impedance, transmission line parameters, etc. However, they do not cover electromagnetic fields very well.

2. William H. Hyat, Jr., Engineering Electromagnetics, Second Edition, McGraw-Hill Book Company, 1967

Books on electromagnetism provide all what is needed to find out electric and magnetic fields emanating from the transmission lines.

 

[patderry]

Thanks to dpc,jghrist and jbartos for their help.Much appreciated.
regards
patderry

 

[unclesyd]

jbartos,
Probably nothing new but if you haven't checked it out I think it deserves a look.

http://www.infolytica.com/en/