关于数字式比率差动继电器

About digital percentage differential relay

提出数字式差动继电器对于传统的机械型差动继电器在概念上的更新，并对应用于发电机、变压器和母线的比率差动继电器推荐作者认为较好的动作判据，供同仁参考。

This paper illustrates the distinction of digital percentage differential relay from the traditional electromagnetic relay and some modifications should be taken on setting the characteristic of that relay. In this paper the author also recommends the general parameters of the characteristics of generator,transformer and bus differentialprotection.