Electric properties of a 66 kV 3-core superconducting power cable system
Electric properties of a 66 kV 3-core superconducting power cable system
复制标题
66 kV 3芯超导电力电缆系统的电气特性
DOI：
--
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
H. Suzuki
中科院分区：
文献类型：
--
作者：
S. Honjo;Masato Shimodate;Yoshihisa Takahashi;T. Masuda;H. Yumura;C. Suzawa;S. Isojima;H. Suzuki
研制并安装了100米长、66千伏、3芯高温超导电力电缆系统样机，以验证其实际使用的性能和性能。该电缆为冷介质型，三芯电缆置于同轴不锈钢波纹管中。将电缆冷却至LN/sub 2/温度后，进行为期一年的长时间测试，例如标称电流-电压负载测试和负载波动测试。每次试验后将电缆加热至室温，研究热循环对电缆性能的影响。在77.3 K时临界电流大于2.7 kA，在1 kArms时交流损耗为0.7 W/m/相。屏蔽电流的大小几乎等于输运电流。还测量了电容、介电损耗和其他电性能。所有的值在测试过程中都没有变化，并且与计算期望很好地一致。
A 100 m-long, 66 kV, 3-core high temperature superconducting power cable system prototype has been developed and installed in order to verify its properties and performance for practical use. The cable is a cold dielectric type with three cable-cores placed in co-axial stainless corrugated pipes. After cooling the cable to LN/sub 2/ temperature, long duration tests, such as that for nominal current-voltage loading and that for load fluctuation, were performed for a one-year period. The cable was warmed to room temperature after each test to investigate the influence of the heat cycle. Critical current was more than 2.7 kA at 77.3 K, and AC loss was 0.7 W/m/phase at 1 kArms. The magnitude of shielding current was almost equal to the transport current. Capacitance, dielectric losses and other electric properties were also measured. All values showed no change during the tests, and were in good agreement with calculated expectations.