自耦联络变压器区域化保护配置研讨

Region protection scheme of intern-uncial autotransformer

通过对常见的几种方向性保护配置方案的分析,指出以往自耦联络变压器后备保护方案中方向性保护配置存在的问题。为解决这些问题,首次提出区域化保护这一概念,并给出自耦联络变压器的区域化电量保护方案。使用该保护方案,可简化保护整定配合,提高后备保护动作速度,解决第三绕组的后备保护问题,同时易于实现保护装置的模块化。

Based on the analyses of several direction protection schemes in common use,some problems existing in the direction protection of intern-uncial autotransformer protection scheme are proposed in this paper.To solve these problems,the concept of region protection is firstly brought forward,and the region electric element protection scheme of the intern-uncial autotransformer is given out.Using this protection scheme,the setting and matching of protection is simplified,the protection operation time is shortened,the protection of the third winding is provided,and modularization of the protection equipment is easy to realize.