20 kV电网电压暂降及其应对措施研究OA
Research on Voltage Sag of 20 kV Power Network and Countermeasures
电压暂降是影响电网电能质量的重要问题之一,对电网的安全稳定运行和用户的可靠供电均会产生不利影响。嘉兴电网20 kV试点区电网运行实践表明,20 kV电网电压暂降现象比10 kV电网更严重,尤其是在20 kV母线或出口短路时,引起上一级电网电压暂降造成的危害更大、影响范围更广。通过计算分析了影响电压暂降幅度的因素,研究相应的应对方法,并提出缓解电压暂降的措施。
Voltage sag is one of the significant problems affecting power quality of power grid and has adverse effect on operation safety and stability. Operation practice of 20 kV network in Jiaxing pilot area indicates that 20 kV power network voltage sag is more serious than 10 kV network; especially when a short circuit hap-pens on 20 kV bus or its exit, the resulting voltage sag of upper-level power grid causes greater harm and wider influence range. by the impac…查看全部>>
雷振;叶剑烽;郁哲亮
国网浙江省电力公司嘉兴供电公司，浙江 嘉兴 314000国网浙江省电力公司嘉兴供电公司，浙江 嘉兴 314000国网浙江省电力公司嘉兴供电公司，浙江 嘉兴 314000
信息技术与安全科学
20 kV电压暂降短路阻抗电能质量
20 kVvoltage sagshort-circuit impedancepower quality
《浙江电力》 2015 (5)
10-13,22,5
评论