Advanced Fusion Systems LLC

John Anthony Cappelletti

Curtis Birnbach

Gediminas Campe

A method for protecting an electrical transmission system having an electrical transmission line coupled to electrical equipment from hazardous EMI comprises receiving at least one pulse of hazardous EMI on the transmission line, and shunting current induced on the electrical transmission line by the at least one pulse of hazardous EMI to ground through at least one static series spark gap apparatus in such manner as to bypass high speed transient voltages from the electrical equipment to ground via a low impedance means and prevent damage thereto, wherein the static series spark gap apparatus has a rise time that is typically 2 nanoseconds or less.

Series static spark gap for EMP protection

A device for preventing a signal induced by hazardous EMI on a power line in a group of multiple adjacent, parallel power lines of the same phase in an electrical power system from reaching an electrical component connected to one of the multiple power lines, the device comprising at least one conductive impedance transition element having a disk-shaped structure with multiple holes for receiving the multiple adjacent power lines of the same phase, the disk-shaped structures each having an outer diameter that is greater than diameter of all of the multiple parallel power lines to deliberately create an impedance mismatch between the conductive impedance transition elements and adjacent portions of the multiple power lines. The impedance mismatch causes the conductive impedance transition elements to reflect high-frequency components of a signal induced on the multiple power lines by hazardous EMI and the high-frequency components are reflected and dissipated as heat.

Method and apparatus for protecting electrical components from a transient electromagnetic disturbance transmitted on parallel power lines

The present disclosure provides a method of protecting a component using a deliberately created impedance mismatch between conductive impedance transition elements and an electric power line. The method comprises coupling a plurality of conductive impedance transition elements having a greater diameter than the power line at a position between an extended length of the power line and the component. The difference between the diameters of the conductive transition elements and the power line causes an intentional impedance mismatch between the two or more impedance transition elements with adjacent portions of the power line, and the mismatch causes high-frequency components of the transient electromagnetic signals induced on the power line by the transient electrical disturbance to be reflected by at least one of two or more impedance transition elements away from the protected component.

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Woodbury, CT, United States of America

John Anthony Cappelletti