Analysis and Suggestions on Inter-hierarchy Coordination of Automatic Bus Transfer
The automatic bus transfer devices enable prompt switch of power supply to backup sources when the main sources encounter faults and stoppages so as to ensure uninterrupted power supply.In order to avoid large-scale activation of automatic bus transfer by a single failure of upper or lower level equipment,in local power grids,it is required inter-hi-erarchy coordination of activation time of automatic bus transfer.Taking an example of an improper coordination between upper and lower level automatic bus transfer devices,this paper analyzes the common timing methods to cope with busbar voltage vanishing,which has a certain positive significance for operation and maintenance of automatic bus transfer sys-tem.
automatic bus transferinter-hierarchy coordinationtiming of activation
万方数据
维普
