| 摘要 |
PROBLEM TO BE SOLVED: To provide a current measurement device capable of measuring a correct current value by cancelling effect of a disturbance magnetic field such as geomagnetism.SOLUTION: The current measurement device of the present invention is a current measurement device 1A(1) for detecting one or both of current values of differential mode and common mode in two parallel conductors where currents of the same value propagate in opposite directions as a pair, and includes three magnetic elements for detecting a magnetic field generated by a current. When assuming a straight line crossing the two parallel conductors at a prescribed angleθ, the three magnetic sensors are arranged on the straight line between the two parallel conductors. |
