智能化变压器微机保护装置的研制

Development of an Intelligentized and Microcomputized Transformer Protection Device

介绍一种用单片机构成的变压器全套保护装置的基本工作原理及主要软件算法和硬件构成。采用高性能单片机 80C1 96及可编程通用外围芯片PSD31 1一起构成一个高功效的微控制系统 ,完成了带突变量检出的故障分量差动保护、常规差动保护、变压器后备保护 ,并全面实现了电力系统“四遥”功能及电力网调度管理自动化所必须的各种二次功能。装置已通过严格的动模试验 ,并成功地应用于实际。

This paper expounded the fundamental principle, software algorithm and hardware configuration of a new transsformer protection device constituted by microcomputer system which consists high powered single chip 80C 196 and programmable universal peripherally chip PSD 311 and otherwise. The device accomplished more functions including broken down current differential relay, general differential relay, reserve relay and so on. And it comprehensively realized ‘four remote’ in the power system and other twice functions that is needed for the power net dispatching and supervising automatization. The formal prototype has passed the strict test on dynamic simulation and takes the lead in operating at main transformer of electrical power station.