【作者】 常风然；

【Author】 Chang Fengran(Hebei Electric Power Dispatching Centre,Shijiazhuang,050021)

【机构】 河北电力调度中心；

【摘要】 220kV及以上系统后备保护的优化配合,势在必行。在优化过程中,要充分考虑保护配置情况,考虑系统的运行要求,考虑设备的安全需求,从整定计算的根本目的出发,重新定位传统意义上的后备保护。应该以安全并可依赖的保护装置和合理适用的保护定值构建可靠的、有选择的、灵敏的和快速的保护系统。更多还原

【Abstract】 That is in the chapter of possibilities,optimizing the reserve protection of 220kV and over power system.It is integrant advisement,scheme of protection,request of grid running,requirement of equipment safety.The traditional reserve protection should be a newly orientation in essential purpose of setting.The system of protection ought to be reliable,selective, sensitive and speedy,based on the secure and reliant relay,based on the logical and applicable setting.更多还原