A three-core power cable online monitoring system based on phase current sensing

@article{Yuan2017ATP,
  title={A three-core power cable online monitoring system based on phase current sensing},
  author={Yanling Yuan and Jie Dong and Jingfu Gan and Shisong Li and Wei Zhao and Song Ling Huang and Lei Chen},
  journal={2017 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)},
  year={2017},
  pages={1-6}
}
The three-core power cable shares one single shielding with three phase cores. Since it requires a lower voltage insulation and is generally less expensive, the three-core power cable has been widely used in the electrical energy transmission project below 35kV. A known problem for sensing the current of a three-core power cable is that in steady state the total current of three phases is zero, and therefore traditional inductive current measurement methods will be invalid. To solve this… CONTINUE READING