ROGOWSKI COIL AND MANUFACTURING METHOD THEREFOR

摘要

A Rogowski coil (1) according to the present invention exhibits resistance to high temperatures and resistance to high levels of radiation as a result of a toroidal coil (2), a winding line (4), and a lead line (5) being accommodated within a metal sheath (7) with an inorganic insulator powder therebetween. The Rogowski coil (1) is also characterized in that, as a result of the toroidal coil (2) being produced in segments, it is possible to achieve a large opening diameter that surpasses 3m without difficulty in a central opening through which a current to be measured passes. This structure and this production method solve a problem of conventional Rogowski coils (1) in which it is difficult to produce a Rogowski coil that can be used in high-temperature, high-radiation environments and that has a large opening diameter.