| 摘要 |
Provided is an optical current transformer for electrical equipment, which makes it possible to reduce the effect of magnetic fields by means of a simple construction and to thereby improve the accuracy of measuring current flowing in a conductor. A conductor (1) is arranged in a container for electrical equipment and an optical fibre (2) is wound and arranged so as to be orthogonal to the axial direction of this conductor (1). An optical member (3) is provided at one end of this optical fibre (2) and a reflecting member (4) is provided at the other end. At least the optical member (3) is arranged so as to be positioned in an arbitrary plane in which the magnetic field axis of a permanent magnet (3A) passes through the central axis of the conductor (1). |
