Automatic switchover device adaptive to distribution line non-communication protection

被引：2
|
作者：
Electric Power Dispatching and Control Center of Guangdong Power Grid, Guangzhou 510600, China [1 ]
不详 [2 ]
不详 [3 ]
机构：
来源：
Dianli Zidonghua Shebei Electr. Power Autom. Equip. | 2013年 / 6卷 / 147-151+162期
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D O I：
10.3969/j.issn.1006-6047.2013.06.027
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学科分类号：
摘要：
According to the characteristics of non-communication protection for distribution line, the startup criterion and operation time of UV(Under Voltage) module are redesigned for a new kind of automatic switchover device to minimize the power recovery time. When the automatic switchover device responds to a permanent fault, two disturbances caused by its close and open operations induce the current variation within the speed-up time window of the AOC(Accelerated Over-Current) module of the protection at opposite side, which accelerates the removal of fault at source side. Real-time digital simulation verifies the effectiveness of the proposed scheme.
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