电流互感器饱和对继电保护的影响及防治对策

Influence of Current Transformer Saturation onRelay Protection and Countermeasures

随着我国各地方电网升级改造的速度不断提升,新型的保护装置被大量地采用.从客观的角度来看提升了供电的可靠性.但同时,供电容量有逐渐增大的现象出现,导致电流短路的现象也越来越严重,从而致使电流互感器饱和的问题加剧,已经成为了不得不解决的问题.本文针对电流互感器饱和对继电保护的影响及防治对策展开讨论,并提出合理化建议.

With the increasing speed of power grid upgrades in various parts of the country,new types of protection devices have been widely adopted.From an objective perspective,the reliability of power supply is improved.At the same time,however,the power supply capacity is gradually increasing.The current phenomenon of the system short circuit starts to increase sharply,and the current transformer saturation problem has become a problem that has to be solved.In this paper,the influence of current transformer saturation on relay protection and countermeasures are discussed,and reasonable suggestions are put forward.