Overcurrent Protection Device for Neutral Beam Sources

摘要

Electrical loads connected to capacitance elements in high voltage direct current systems are protected from damage caused by capacitance discharge overcurrents by connecting a longitudinal inductor between the capacitance element and the load. The inductor comprises a bifilar winding wound about a magnetic core, which forms an incomplete magnetic circuit. A diode is connected across a portion of the bifilar winding. Most of the energy discharged from the capacitance element is stored in the inductor and then dissipated, away from the load, in an L-R circuit comprising the diode and the coil winding. Multiple high voltage circuits having capacitance elements may be connected to loads through bifilar windings all wound about the aforementioned magnetic core. (ERA citation 09:011268)