| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a current transformer, a current detecting device, and a detecting device using them, having highly precise linearity and measurement precision, while being installed easily even on a wired electric wire or the like. SOLUTION: In this current transformer 10 equipped with a pair of iron cores 1, 2 having a divided-type structure using high-permeability material, coils 4 given to the iron cores 1, 2, and a resin case 6 for storing them, having a through hole 9 through which an electric wire can be penetrated, the resin case 6 is equipped with a water-proof function and the cores are not saturated even with a heavy current having a primary current as much as AC 1000A, and has a high measurement precision.</p> |
