继电保护整定管理系统在武钢电网中的应用

电网继电保护整定值的合理准确计算对电力系统安全稳定运行起着极为重要的作用.继电保护故障分析整定管理及仿真系统为武钢电网继电保护整定计算的准确有效性提供了保障.本文应用继电保护整定管理系统计算线路保护整定值.整定过程中,考虑本级保护与其后备保护能同时满足灵敏性、选择性的要求,使得继电保护整定计算全局性更强.算例表明,整定值能够满足现场需求,提高了线路保护的正确动作率,为武钢创造了巨大的经济效益.

Application of protection setting management system in grid of WISCO

Reasonable and accurate calculation of grid relay protection setting value is very important for safe and stable operation of power system. Relay protection fault analysis setting management and simulation system provides guaranty for accurate and effective calculation of relay protection setting val-ue in grid of WISCO. Line protection setting value was calculated by use of relay protection setting management system. In setting process, it is considered that both current protection and standby protec-tion can meet the,requirement of sensitivity and selectivity. Overall importance of relay protection set-ring calculation was enhanced. Case study shows that setting value can meet the need of spot, true oper-ation rate of relay protection was improved, and large economic benefits were obtained.