Research on Intelligent Spare Power Automatic Switch Device for Low-voltage Distribution Grid
Liao Yongjun1, Fang Binghua1, Deng Zehang1, Chen Lidan2
1. Guangzhou Southern Power Group Electric Apparatus Co., Ltd, Guangzhou 510285; 2. Guangzhou College of South China University of Technology, Guangzhou 510800
Abstract:In order to improve the flexibility of its operation mode and load transfer capability, two power supply scheme such as bus connection mode and connection between two main cable end from different distribution transformer are designed in this paper, the intelligent low-voltage spare power automatic switch device should include the functions that automatic operation, to resume, closed loop, over-current protection and communication monitoring, provide the reference for the low voltage distribution network to carry out closed loop operation.