摘要
通过低压厂用电系统短路电流计算,以及保护定值的整定计算结果,并根据不同设备对保护可靠性、灵敏性的要求,对发电厂低压厂用电系统剩余电流保护的配置进行了分析,对于380 V厂用电系统,在常用的回路上采用剩余电流保护装置,在Ⅰ类重要负荷和PC段—MCC段馈线电源按传统保护配置原则进行保护配置,既能最大限度地保证人身安全,又能保证系统运行可靠性。
Through the resucts of the calculation, and the setting calculation requirement of the different equipment to low voltage auxiliary system of protection setting, and short-circuit current protect the reliability and the according to the sensitivity, to lay particular stress on plant low voltage auxiliary system, configuration and application of the principle of residual current protection are briefly analyzed.
出处
《内蒙古电力技术》
2015年第02S期45-48,共4页
Inner Mongolia Electric Power
关键词
发电厂
剩余电流保护
厂用电系统
保护定值
整定计算
power plant
residual current protection
auxiliary power system
protection fixed value
setting calculation
