摘要
在电网中当负荷超过变压器n-1容量要求时,对于大型变压器如果较长时间超额定容量运行,很可能造成变压器这一主设备的损坏,影响电网的安全运行和可靠供电。通过采用变压器负荷自动转移控制技术,利用相关110kV联络线路和备自投装置,在变压器负荷突增大大超过额定容量这一状况下,短时间内自动进行负荷转移,将变压器负荷控制在安全运行状态以内,确保变压器这一重要一次设备的安全稳定运行。
When the capacity of main transformer can not satisfy the condition of n-1 in power system, the large-scale transformer works on over rated capacity condition for a long time, it is possible to cause the damage of transformer which affects the safety operation of power system and the reliable power supply. This paper adopts transformer load stability control technology and uses the contact circuit of correlating 110kV and equipment of standby to guarantee that the main transformer transfers load automatically in a short time under the condition of sudden increase of load and control the main transformer load in the safety operation condition, then ensuring the safe stability operation of main transformer.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第11期106-108,115,共4页
Power System Protection and Control
关键词
变压器
超额定容量
负荷自动转移
安全运行
main transformer
over rated capacity
load transfer automatically
safety operation
