摘要
针对10 kV配电网使用Yyn0及Dyn11接线的变压器易出现高、低压侧断线运行状况,分析了变压器断线后给配电网运行造成的不良后果,提出了采用向量图法、对称分量法对变压器进行性能计算,以求出电压、电流变化规律,准确判断故障,消除隐患,确保配电系统安全可靠运行。
Since the transformer wired by YynO and Dynl i in 10 kV distribution network is easy to disconnection at high, low voltage side, this paper analyzes the negative effect on distribution network brought by disconnection. The paper also propose to calculate the transformer performance by vector diagram and symmetrical component method and works out the change law of voltage and circuit to accurately judge fault, eliminate hidden danger and ensure the safe and reliable running of distribution system.
出处
《黑龙江电力》
CAS
2012年第3期164-166,170,共4页
Heilongjiang Electric Power
关键词
变压器
向量
对称分量
电压
电流
transformer
vector
symmetrical component
voltage
circuit
