Synthesis of a Novel Semi-Conductive Composites Doping with LaSrMnO for Excellent Electric Performance for HVDC Cable.

The semi-conductive layer located between the wire core and the insulation layer in high voltage direct current (HVDC) cable plays a vital role in uniform electric field and affecting space charges behaviors. In this work, the research idea of adding ionic conductive particles to semi-conductive materials to improve the conductive network and reduce the energy of the moving charge inside it and to suppress charge injection was proposed. Semi-conductive composites doped with different LaSrMnO (LSM) contents were prepared.