摘要
110 kV备自投仅有进线备自投与分段备自投两种运行方式,当故障发生时,备自投动作虽然会保证供电,但会影响上级电源进线的负荷量,可能导致上级电源进线突然重载,使线路温度升高,而集中式变电站由于将变电站一次设备、二次设备分别集中化,会出现设备散热问题。针对四进线单母分段(两主两备)变电站下的110 kV备自投装置,提出了单母进线备自投的逻辑,目的在于解决线路过负荷问题,同时还探讨了该逻辑方式下与分段备自投的优化选择。
There are only two kinds of BATS modes:Incoming-line-BATS and Sectional-BATS.When the fault occurs,the power supply will be guaranteed,but the load of the incoming line of the superior power supply will be affected,which may lead to the sudden heavy load of the incoming line of the superior power supply and the rise of the line temperature.However,the centralized substation will have the problem of equipment heat dissipation due to the centralization of the primary equipment and secondary equipment of the substation.In this paper,for the 110 kV BATS in 4-wire single bus section(two main and two standby)substation,the logic of single bus incoming BATS is proposed to solve the problem of line overload,and the optimal selection of this logic mode and section backup automatic switching is also discussed.
作者
李元开
赖天德
LI Yuankai;LAI Tiande(Shenzhen Power Supply Ltd.,Shenzhen 518000,China)
出处
《电工技术》
2021年第12期130-132,共3页
Electric Engineering
关键词
集中式变电站
备自投
单母进线
负荷判别
centralizedsubstation
BATS
single-bus-incoming mode
load discrimination
