Patent ID: 7564233

Claim:
A Rogowski coil assembly, comprising: a first Rogowski coil comprising a first printed circuit board and a first conductive winding thereon, the first Rogowski coil surrounding a conductor and generating a first voltage output signal proportional to a rate of change of current flowing through the conductor; a second Rogowski coil comprising a second printed circuit board and a second conductive winding thereon, the second coil surrounding the conductor and generating a second voltage output signal proportional to the rate of change of current flowing through the conductor; a pair of interface cables, each of the pair of interface cables being coupled to one of the first and second Rogowski coils at an end of the conductive winding thereof, each of the interface cables transmitting one of the first and second voltage output signals; and at least one magnetic shield disposed around a termination of at least one of the interface cables, at an end of its corresponding conductive winding, the at least one magnetic shield being configured to prevent voltages from being induced in the interface cables at the terminations thereof.