摘要
在同一电路上级联安装两个以上的SPD对电气系统进行保护时,应需对SPD配合问题进行研究,SPD级间距离(线路电感L)是其能量配合的关键因素,若SPD级间距离达不到要求,必须考虑选择适当的配合器件。通过理论计算与分析,指导工程人员选取和制作配合器件,并通过实验验证表明:线路的自然分布阻抗、专用配合器件或自制螺旋线圈均可实现SPD系统的能量配合,能取得较好的配合效果。
In case of superior more than two SPDs is joint installed in the same circuit tor protecuon of the electrical system, it is need to study SPD matching problem, distance between SPD levels （line inductance L） is a key factor in its energy coordination, if the distance between the SPD levels cannot meet the requirements, appropriate matching device must be considered. Through the theoretical calculation and analysis, the engineering personnel is guided to select and product matching device, and verified by experiments, the energy cooperation of SPD system can be achieved by the natural distribution impedance, the special matching device and special homemade spiral coil of the lines, and the better coordination result can be obtained.
出处
《电瓷避雷器》
CAS
北大核心
2016年第4期133-137,141,共6页
Insulators and Surge Arresters
关键词
SPD
电感
能量配合
SPD
inductance
energy cooperation
