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首页> 外文期刊>Review of Scientific Instruments >Experiment of low resistance joints for the ITER correction coil
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Experiment of low resistance joints for the ITER correction coil

机译：ITER校正线圈低电阻接头的实验

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摘要

A test method was designed and performed to measure joint resistance of the ITER correction coil (CC) in liquid helium (LHe) temperature. A 10 kA superconducting transformer was manufactured to provide the joints current. The transformer consisted of two concentric layer-wound superconducting solenoids. NbTi superconducting wire was wound in the primary coil and the ITER CC conductor was wound in the secondary coil. The primary and the secondary coils were both immersed in liquid helium of a 300 mm useful bore diameter cryostat. Two ITER CC joints were assembled in the secondary loop and tested. The current of the secondary loop was ramped to 9 kA in several steps. The two joint resistances were measured to be 1.2 nΩ and 1.65 nΩ, respectively.
机译：设计并执行了一种测试方法，以测量液氦（LHe）温度下ITER校正线圈（CC）的接头电阻。制造了一个10 kA的超导变压器，以提供接头电流。变压器由两个同心的绕线式超导螺线管组成。 NbTi超导线缠绕在初级线圈中，而ITER CC导体缠绕在次级线圈中。初级和次级线圈均浸入有用直径为300 mm的低温恒温器的液氦中。在次级回路中组装了两个ITER CC接头并进行了测试。次级回路的电流分几步上升到9 kA。测得的两个接头电阻分别为1.2nΩ和1.65nΩ。

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