相序指示器案例教学探索  

Phase Sequence Indicator Research for Case Teaching

作　　者：章艳[1] 陈希有[1] 

机构地区：[1]大连理工大学电气工程学院,辽宁大连116024

出　　处：《电气电子教学学报》2012年第3期9-12,共4页Journal of Electrical and Electronic Education

基　　金：辽宁省电工教学团队建设项目(0809);大连理工大学教改重点项目:电工学教学团队建设与研究(ZD07)

摘　　要：本文从案例教学的角度对电容型相序指示器的工作原理进行了详细分析,利用电路方程、相量图和解析几何等手段对中点位移轨迹、电容的选择、灯泡亮度等进行了深入探讨并启发性地提出了若干改进方案。此外还探讨了电感型和电阻型方案的可行性。分析过程可以帮助学生深入理解非对称三相电路中点位移现象、掌握用相量图分析交流电路的方法,培养学生解决工程实际问题的能力,达到案例教学的目的。In this paper, theworking principle of capacitor-type phase sequence indicator is discussed from the viewpoint of the case teaching method. Based on circuit equation, phasor diagram and geometry method, the details about neutral point displacement trajectory, the capacitance selection, bulb luminance are investigated, and another improvement ideas are put forward. Furthermore, there is feasibility study about inductor-type and resistor-type phase sequence indicators. The conclusions will be the guidance for understanding the neutral point displacement in unbalanced three-phase circuit and phasor diagram method, developing the ability to deal with practical problems, which is the purpose of case teaching

关 键 词：非对称三相电路 相序指示器 中点位移 

分 类 号：TM13[电气工程—电工理论与新技术]