Patent ID: 7737814

Claim:
An electrostatic shield for a voltage transformer having a high voltage winding formed from a high voltage winding wire having a high voltage winding wire diameter, wherein said electrostatic shield comprises: a coil comprising a plurality of windings of a substantially round shield wire, said coil comprising a first turn terminating in a starting end, a last turn terminating in a finishing end, and a plurality of intermediate turns, wherein said first turn, last turn and plurality of intermediate turns define an inside shield coil surface and an outer shield coil surface; and a layer of insulation disposed about a substantial portion of said shield wire, wherein said layer of insulation terminates a sufficient distance from said starting end and said finishing end to allow said starting end and said finishing end to be electrically connected to the high voltage winding; wherein said inside shield coil surface is dimensioned to surround the high voltage winding; and wherein said shield wire has a shield wire diameter that is at least ten times the high voltage winding wire diameter.