Directional unit is the kernel unit of the traveling waves or transients based ultra-high-speed directional protection for transmission line.
方向元件是基于行波或暂态量的超高速方向保护的核心元件。
Directional unit is the kernel unit of the traveling waves or transients based ultra-high-speed directional protection for transmission line.
方向元件是基于行波或暂态量的超高速方向保护的核心元件。
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