line impedance

In this paper a plain expression of a line impedance matrix and phase sequence impedance matrix is presented to express the two ends earthing transmission cable system with the intersect connection of cable sheath but non transposition of the cable core.

文章给出了电缆线芯不换位、金属护套交叉互联两端接地系统的线路阻抗矩阵、相序阻抗矩阵的直观表达式；

This paper treats of frequency stability of conventional 12-channel carrier transmitters as used in collieries, with particular reference to the considerable variations of underground transmission line impedance and fluctuations of supply voltage.

本文根据煤矿井下载波传输线路阻抗变化大、电源电压波动大的特点，针对传统的矿用十二路载波发射机，讨论了其振荡频率（即发射频率）的稳定性问题。

The numerical results were obtained in a table by solving the combined equation of transmission line impedance transfer equation and terminal input impedance expression in gas capacitance.

通过解传输线阻抗转移公式和终端输入阻抗的气隙电容表达式的联立方程得出了数值结果。

The periodic current subtransient attenuation of generator is taken into consideration, when calculating the short-circuit of generators, and the decay time constant is corrected in view of the line impedance when the short-circuit point is away from the bus-bar. 2.

在计算发电机短路电流时，考虑周期分量的超瞬态衰减，考虑短路发生在远离汇流排位置时线路阻抗对短路电流的影响，并对周期分量衰减时间常数进行修正。

The reflection of tapered transmission line impedance is analyzed in theory and the VSWR curve of coaxial to plane converter is drawn.

从理论上分析了渐变式传输线阻抗变换的反射与频率的关系，进而分析了同轴到平板过渡的电压驻波比关系式；