摘要
钢企产能扩大后,导致企业电网结构日益复杂。不同于供电公司大网结构的灵活多变,企业电网受带载率高、自备机组多、短路容量小等多方面因素限制。通过对一起因电网合环操作引起的燃气轮机跳闸事故的分析,探讨了保护设置的合理性并提出在现有电网结构下的改进意见。
The capacity expanding of Baotou Steel in recent years has resulted in increasingly complex structure of enterprise power grid.Different from the flexible structure of large networks of power supply companies,the power grid of enterprises is limited by many factors such as high carrying capacity,various self-provided generating units and small short circuit capacity.Through analysis of a gas turbine tripping accident caused by power grid loop closing operation,the rationality of current protection setting is discussed and improvement suggestion under the existing power grid structure is put forward.
出处
《冶金动力》
2017年第12期1-3,6,共4页
Metallurgical Power
关键词
燃机
跳闸保护优化
负荷快速下降
合环操作
gas turbine
optimization of tripping protection
rapid load drop
loop closing operation
