The measurements of self-fields and voltages for the stacked tapes assembled in rigid structure (STARS) conductor were carried out when the conductor immersed in liquid nitrogen was energized. In the measurements, a 3 m straight line shaped STARS conductor, which is composed of 45 REBCO tapes (15 tapes × 3 rows) embedded in a copper stabilizer, was used as a conductor sample. The measurement results indicate that the ramp rate at the conductor excitation and the one-time thermal cycle of the conductor do not affect the self-fields but the voltages.

The current center position in the conductor cross-section during the conductor excitation was analyzed from the measurement results of the self-fields. The current center position always maintains the same position in the middle of the cross-section during the excitation. The analysis indicates that the current distribution of the STARS conductor is stable during the excitation. In addition, two-dimensional magnetic field calculations were conducted using the various models for the cross-sectional configuration of the STARS conductor. As a result, the calculation results agree with the measurement results regarding the self-fields.

当浸渍在液氮中的导体通电时，对组装成刚性结构（STARS）导体的堆叠带材的自电场和电压进行了测量。在测量中，使用3 m直线形STARS导体作为导体样品，该导体由嵌入铜稳定器中的45条REBCO带（15条带×3行）组成。测量结果表明，导体激励时的斜率和导体的一次热循环不会影响自电场，而是会影响电压。

根据自电场的测量结果，分析了导体激励期间导体横截面中的当前中心位置。在激励过程中，当前的中心位置始终在横截面的中间保持相同的位置。分析表明，在激励过程中，STARS导体的电流分布是稳定的。此外，使用各种模型对STARS导体的横截面构造进行了二维磁场计算。结果，计算结果与关于自场的测量结果一致。