The electrical behavior of the sample steel traction rails is analyzed, considering the resistance and internal inductance. Measurements are performed on a sample rail with a circulation of audiofrequency current (with frequency regulated on a wide frequency interval range of 1–100 kHz) superimposed on a dc supply current. The results complete the other measurement results obtained with a 50-Hz bias current; the resistance values are 30%–50% smaller, whereas the internal inductance is almost similar.
The Internal Impedance of Traction Rails for DC Railways in the 1-100 kHz Frequency Range
MARISCOTTI, ANDREA;POZZOBON, PAOLO
2006-01-01
Abstract
The electrical behavior of the sample steel traction rails is analyzed, considering the resistance and internal inductance. Measurements are performed on a sample rail with a circulation of audiofrequency current (with frequency regulated on a wide frequency interval range of 1–100 kHz) superimposed on a dc supply current. The results complete the other measurement results obtained with a 50-Hz bias current; the resistance values are 30%–50% smaller, whereas the internal inductance is almost similar.
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