In theory, the decrease of the vacuum magnetic insulation transmission line inductance can heighten the energy transmission efficiency, can increase the load current.
理论计算表明，改造真空磁绝缘传输线，减小其自身电感，会提高能量传输效率，能够增大负载电流。
Theoretically, the resistance, inductance and capacitance in per unit length, and the effective length of transmission line cannot be obtained accurately.
理论上讲，输电线路单位长度的电阻、电感、电容以及输电线路的实际长度等参数都是无法精确获得的。
The incremental method, differential equation method and integral equation method are three main methods in zero-sequence parameters on-line measurement of transmission lines with mutual inductance.
输电线路的零序参数尤其是多回互感线路的零序参数是电力系统继电保护整定计算需要的重要参数，所以其准确测量具有重要意义。
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