摘要
分析了涌流间相互作用对励磁涌流衰减速度的影响,通过分析发现,由于和应涌流和励磁涌流的相互作用,致使空投变的励磁涌流衰减速度变慢,可能会导致了后备过流保护的误动。进一步的提出了应对措施。大量的仿真实验验证了结论的正确性。
The principle of interaction between sympathetic inrush and magnetizing inrush is analyzed in detail.Through the analy-sis, it is found that the interaction between sympathetic inrush and the inrush current can low the decay velocity of magnetizing in-rush significantly, and may cause the mis-operation of backup protection of the no-load transformer.Furthermore, the countermeas-ures are put forward.A large number of MATLAB simulations prove the method to be reasonable.
出处
《云南电力技术》
2014年第6期48-50,共3页
Yunnan Electric Power
关键词
励磁涌流
和应涌流
变压器
过流保护
inrush current
sympathetic inrush
power transformer
over current protection
