1) secondary cable
二次电缆
1.
In order to investigate the interference mechanism of electromagnetic pulse(EMP)coupling to secondary cable used to make signal transmitting and power transmitting of secondary equipment in substations,a three-dimensional declining finite-difference time-domain(FDTD)numerical model for EMP coupling to transmission line was developed with the electromagnetic scattering theory,and modified equ.
为了研究电磁脉冲耦合二次电缆的机理,基于电磁散射理论建立了脉冲场耦合传输线的三维倾斜时间域有限差分(FDTD)数值分析模型,推导出了三角形网格内的电磁场修正方程,进而计算了电磁脉冲激励下理想导体面上倾斜单导体传输线终端负载上的电流响应。
2.
To reduce the interference to secondary equipments caused by transient electromagnetic field due to switching operation in substations, generally the metal shields of secondary cables are connected to grounding grid at both ends.
为抑制变电站开关操作时产生的瞬态电磁场对站内二次设备的干扰,通常将二次电缆的屏蔽层双端接地。
3.
The electromagnetic interference which has an influence on the secondary cable in substations is analyzed,with comparison of the different anti-electromagnetic interference effects when secondary cable shielding grounding schemes are in different electromagnetic interference coupling,especially in the inductance coupling.
分析了变电站中电磁干扰对二次电缆的影响,就不同电磁干扰耦合方式下二次电缆屏蔽层接地方法的抗干扰效果进行了分析比较,对较为复杂的电感耦合方式进行了着重分析,提出抗电磁干扰的有效措施,从而达到抑制干扰的目的,对微机保护装置安全稳定运行起到极其重要的作用。
2) secondary cable shielding
二次电缆屏蔽层
1.
A novel grounding scheme for secondary cable shielding is put forward in this paper,in which one terminal in the switchyard is grounded via a suitable resistance,and the other in the control room is directly grounded.
提出一种新的二次电缆屏蔽层接地方法,即在开关场的一端经适当电阻接地,位于控制室的另一端直接接地。
3) secondary cable count
二次电缆统计
4) high modulus primary (secondary) coating
(电缆)高模量一二次涂层
5) hard secondary coating
(电缆)硬的二次涂包层
6) secondary cable
次级电缆
补充资料：输出反馈(见线性二次型次优控制)
输出反馈(见线性二次型次优控制)
output feedback
3h日c卜口fon以以{输出反馈型次优控制。(output王eedbaek)见线性二次
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条