关于T60差动保护差流补偿计算问题的探讨

近年来随着辽河电网的不断升级改造,微机保护装置的应用越来越广泛,与传统保护相比,虽然保护原理相同,但细节又有些不同。其中以变压器的差动保护为例,微机保护在相角和幅值补偿方面更多的是采用软件补偿的方法,本文以y,d11变压器为例,结合T60微机差动保护继电器,针对在保护调试过程中遇到的差流补偿计算问题进行探讨,并通过仿真计算的方法验证比率差动保护的动作曲线。

In recent years, with the continuous upgrading of power grid, is applied more and more widely microcomputer protection device, compared with the traditional protection, although the protection principle is the same, but the details are also different. The differential protection of transformer microcomputer protection as compensation is more of a method of using an example, the phase angle and amplitude software compensation, according to y, Dll transformer as an example, combined with T6o microcomputer＇s differential protection relay protection, in the process of debugging differential compensation calculation problems were discussed, and the simulation calculation validation of differential protection action curve