The Key Technology Research on Standard Current Transformer of Rogowski Coil

Based on Rogowski coil current transformer temperature characteristic, there are problems that conductor in the course of the development of key technologies such as eccentric and multiple range test. this article through to Rogowski coil temperature characteristic optimization, coil processing technology upgrade, the external magnetic field interference shielding, a conductor eccentric accuracy control and the design of the multiscale system key technology research, complete standard 0.05 Rogowski coil current transformer development, implement standard digital signal output and multiple range test switch gear. Rogowski standard current transformer has the coreless coil, light quality, small volume, wide measuring range and open protocols, can meet the development of digital signal electronic transformer calibration accuracy requirements.