【摘要】 简要回顾了我国电力系统线路保护的发展过程,从建国初的电磁型、机电型到整流型及目前广泛采用的微机型,微机型保护装置已从最初的8位机到1 6位机并发展到目前的32位机,适用于我国各种电压等级的需要。同时展望了线路保护下一步发展趋势:以光纤差动为主,适用于光互感器,系统网络化保护。更多还原

【Abstract】 The development of line protection in Chinese power system is reviewed from earlier protection including electromagnetic protection, mechanic electric protection and commutated protection to micro processor protection which is widely used nowadays Micro processor based protection, in which the micro processor has been developed from 8 bit, 16bit to 32 bit, meets to need of kinds of voltage level Meanwhile the trend of line protection is prospected: fiber current different, applied to optical transformer and systematic networks protection更多还原