Railroad track simulator for assessing track signal susceptibili

Details Railroad track simulator for assessing track signal susceptibili Railroad track simulator for assessing track signal susceptibili

1988-10-12

1990-06-12

Kashnikow, Andres

Railway switches and signals

Roadway-defect protection

Electric

246 20, 246 28F, 324225, 324527, 340515, 333 23, G08B 2900, B61L 2100

Patent

active

049326155

ABSTRACT:
A railroad track segment simulator for assessing track signal susceptibility to electric power line interference including a circuit including a series dc resistor, a series inductor, and an inductive network representing characteristic impedance of an electrical R-L transmission line, resistor, inductor, and network being serially connected as a series circuit, a first ballast resistance connected between one end of series circuit and a ground potential, and a second ballast resistance connected between another end of series circuit and a ground potential. The impedance of the segment is expressed as: ##EQU1## where: f=frequency (hz),

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patent: 3205352 (1965-09-01), Prucher
patent: 3517306 (1970-06-01), Anderson et al.
patent: 3710240 (1973-01-01), Kuehnemann et al.
patent: 3967219 (1976-06-01), Dolby
patent: 4614921 (1986-09-01), Yarman
patent: 4760356 (1988-07-01), Kempster

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