Positive sequence impedance 正序阻抗
negative sequence impedance 负序阻抗
zero sequence impedance [电] 零序阻抗 ; 电力变压器的零序阻抗
negative phase sequence impedance 负序阻抗 ; 负相序阻抗
zero-phase sequence impedance 零相序阻抗
zero phase sequence impedance 零相序阻抗
Low and even forward (backward) and zero sequence impedance improves the quality of power supply.
电缆具有较低且均匀的正(逆)序和零序工作阻抗，有利于改善供电品质。
In the meanwhile it is pointed out that the quantity change of the parallel line and zero-sequence impedance must be retested.
同时还指出平行线路条数变化，零序阻抗均需重新测试。
The earthing method of the metal sheath varies somewhat in different cable lengths, which affects greatly line parameters, especially zero sequence impedance.
对于不同长度的电缆线路其金属护套的接地方式亦不尽相同，从而对电缆线路参数，尤其是对零序阻抗将产生较大的影响。
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