Magnetisation and transport current loss of a BSCCO/Ag tape in an externalAC magnetic field carrying an AC transport current

In practical applications, BSCCO/Ag tapes are exposed to external AC magnet ic field and fed with an AC transport current. The total AC loss can be sep arated in two contributions. First, the transport current loss influenced b y an external AC magnetic field. The second contribution is the magnetisati on loss that depends also on the transport current running through the cond uctor. In this paper the total AC loss is considered and the role of the el ectric and magnetic components is compared. This comparison is made with an available analytical model for the AC loss in an infinite slab and verifie d experimentally for a BSCCO/Ag tape conductor. For small transport current s the magnetisation loss dominates the total loss. When the current increas es, a field dependent crossover occurs, after which the transport current l oss also plays a role, Qualitatively the measurements can be described well in terms of the critical state model. For magnetic field parallel to the w ide side of the conductor the CSM for an infinite slab describes the measur ements also quantitatively.