Combined transducer for measuring current and voltage simultaneously on pipe-sheathed conductors

摘要

This transducer comprises only one transducer element. The transducer element consists of a Rogovski coil which is surrounded by a metallic, non-magnetic shielding. Inside the pipeline surrounding the current-conducting conductor, the transducer element is arranged in a groove in the radial plane to the conductor insulated from the inside wall of the pipeline. The metallic shielding simultaneously forms a capacitor both with the pipe and with the conductor, the two capacitors jointly forming a capacitive voltage divider.