预热完成后必须 立即进行电缆损耗(Cable Loss)的测量计算,否则由于没有处于正常工作状 态,由于散热,可能导致热分布的不平衡性,从而计算的电缆损耗的结果不 正确。
基于274个网页-相关网页
在那种冰冷的超导状态下,线缆不会因为电阻而损耗能源(目前的铜电缆损耗5%到7%的能源。)
In that chilled superconducting state, the lines lose no energy to resistance (today's copper cables lose 5 to 7 percent).
由于3g信号频率高,在地铁中的泄漏电缆损耗和空间损耗将大大增加,为了达到覆盖要求,必然要引入中继放大。
Repeaters have to be employed in metros to meet the coverage requirements because leakage cables and free Spaces are much more spoiled due to high frequency of 3g signal.
由于在传输过程中采用高压直流电缆输送的损耗要比传统交流电的损耗小得多,因此采用交流电远距离传送电力很不划算。
Energy losses on DC lines are far lower than on the traditional AC ones, which make transmission of energy over long distances uneconomic.
应用推荐