|关键词: 变电站 二次设备 布置方式 设计优化
|The arrangement of substation equipment and optimal design
HUANG Xu yin
|An optimal design is put forward,which distributes the substation secondary equipment into high voltage switch yard to avoid the existing disadvantages in current project plan and implementation.Besides the shielding function of relay building,to reduce the quantity and length of cable should be considered as much as possible.To configure the cabinets according to controlled objects can reduce the quantity of cabinet and the cables between cabinets.To apply distributed busbar protection can avoid arranging the cables among the cabinets out relay building.To install the channel equipment of high frequency protection in relay building can shorten the length of high frequency communication cable.To configure by pass protection according to relay building can limit the channel switch connection inside relay building.To install DC supply equipment in relay building can cancel the long DC supply cables.By taking the measures mentioned above,the control cable and investment can be further cut down,and the damage and improper behavior of protection and control equipment effectively reduced,which are caused by the electromagnetic interference.
|Key words: relay building,distributed arrangement,conducted interference