AC loss characteristics of layered insulated low AC resistive conductor

In this paper, a round tight pressure conductor with large cross-section based on layered insulating structure is proposed. Compared to the existing common conductors, the 1800mm
²
new conductor with the same cross section can reduce the AC / DC resistance ratio 15% and meet the conductor appearance requirements, without changing the interface state and conductor shielded conductor. Insulated conductor of connection terminal crimping treatment effect on AC loss characteristics of the layered paint on the envelope of actual trial results showed that: 1) new conductor has a lower temperature in the final stable stage than the ordinary one and reduce the percentage of 3.75%; 2) removing the film of paint can effectively reduce the additional loss and heat caused by the uneven current at the crimping and connecting terminals, cut the temperature of conductor by 28% and connection terminal by 57%; 3) two different ways of removing paint including baking and solvent depainting were adopted to reduce the effect of contact resistance in two ways, but the first way is suggested considering the actual maneuverability of the field cable installation.