Patent ID: 8841907

Claim:
A current detecting apparatus configured to detect an electric current flowing through a bass bar, the current detecting apparatus comprising: a magnetic core formed of a magnetic material, having both ends opposing each other via a gap portion, and formed continuously around the periphery of a hollow portion; a magnetoelectric device arranged in the gap portion of the magnetic core and configured to detect a magnetic flux varying in accordance with an electric current passing through the hollow portion of the magnetic core; and a current detecting bass bar formed of a conductor including a through portion penetrating through the hollow portion of the magnetic core, and two plate-shaped terminal portions continuing from both sides of the through portion in the direction of penetration through the hollow portion, the through portion being formed to have a thickness larger than that of the terminal portions, wherein each of the two plate-shaped terminal portions of the current detecting bass bar of the current detecting apparatus has a through hole and a plurality of projections embedded in the plate-shaped terminal portion of current detecting bass bar and radially distributed around the through hole, and the current detecting apparatus is configured so that the through portion of the current detecting bass bar is prevented from coming into contact with an interior surface of the magnetic core that forms the hollow portion of the magnetic core.