Title :
Impulse current withstand capability of coaxial cables in high current applications
Author :
Römheld, M. ; Hartmann, W.
Author_Institution :
Corp. Technol. CT PS 5, Siemens AG, Erlangen
Abstract :
A coaxial medium voltage cable has been tested as a means to connect the high current pulse generator to the load coil in magnetoforming applications, at single pulses of ca. 100 mus duration, and at amplitudes between 30 and 140 kA. The radial deformation (expansion) of the cable was detected with a high-resolution, high-speed camera as a function of the current amplitude. We observed dynamic changes of the cable diameter at currents above 80 kA, reaching up to 1.26 mm increase in diameter at 142 kA pulse amplitude. The measurements are used to estimate the operating range of these cables.
Keywords :
cameras; coaxial cables; coils; pulse generators; coaxial medium voltage cable; high current pulse generator; high-resolution camera; high-speed camera; impulse current; load coil; magnetoforming applications; radial deformation; Coaxial cables; Conductors; Impedance; Inductance; Power cables; Pulse circuits; Pulse generation; Pulse measurements; Testing; Voltage;
Conference_Titel :
IEEE International Power Modulators and High Voltage Conference, Proceedings of the 2008
Conference_Location :
Las Vegas, NE
Print_ISBN :
978-1-4244-1534-2
Electronic_ISBN :
978-1-4244-1535-9
DOI :
10.1109/IPMC.2008.4743605
