用户回线 local loop
- 经了解,许多用户变电所的两回进线与分段开关没有完善的操作闭锁功能,而双电源进入用户变电所后不允许并列。
After research, the double-loop line and subsection switch of many user substations don't have mature latching function, while dual-supply of these substations is not allowed to use in parataxis.
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