Impedance of single phase aerial cable
Impedance of single phase aerial cable
(OP)
I want to calculate the resistance and reactance of a 25kV single phase (railway) cable from the Track Sectioning Cabing (TSC). There are 2 cables , the active and the return path cable.
(I have some theory but this all relates to 3 phase cable. Does the polarity of the currents have any effect?) Is the GMD just the distance between the cable and the GMR a standard for single core cables)
The cable is XLPE, Cu single core cable.
Thanks very much for this.
(I have some theory but this all relates to 3 phase cable. Does the polarity of the currents have any effect?) Is the GMD just the distance between the cable and the GMR a standard for single core cables)
The cable is XLPE, Cu single core cable.
Thanks very much for this.






RE: Impedance of single phase aerial cable
You mention active and return path cable and polarity of the current. Are you talking about ac or dc? Single phase-to-ground or is the load between phase-to-phase? If phase-to-ground, is the cable shield part of the return path? Is the shield grounded at both ends?