| 摘要 |
PROBLEM TO BE SOLVED: To provide a current sensor which can flexibly cope with change of the number or the like of detection object currents.SOLUTION: As shown in Figs. 1(a) and (b), a current sensor 1 includes a plurality of current sensor units 2 each of which is provided integrally with a bus bar 3 for generating a magnetic field at the periphery thereof by flowing a detection object current; a core 4 which has a ring shape with a gap 40 at a part thereof, and in which the bus bar 3 is inserted into the center of the ring; and a magnetism detection sensor 5 which is arranged at the gap 40, and detects a change of the magnetic field in the gap 40, and the current sensor 1 is configured by further integrating the plurality of current sensors units 2. |
