In typical six-phase transmission system, half positive sequence, half zerosequence and half negative sequence fault components are independent of the variance of system impedance.
在典型的六相输电系统中，半正序、半零序和半负序故障分量不受系统阻抗变化的影响。
2
Used together with SD-LJD (LXK) series ZCT and executing relay to form a complete zerosequence (ground) protection system.
配合SD - LJD (LXK)系类零序电流互感器和动作继电器即组成完整的零序(接地)保护系统。
3
The phase comparison error is the primary factor leading to mistaken action in the selective leakage protective system of underground LV networks based on zerosequence current direction.