新型模拟数字混合式距离保护的研究和试验

The Research and Test of A New Analog-Digital Mixing Mode Distance Protection

本文介绍一套新型距离保护．该保护采用新型距离继电器作为测量元件，能克服常规距离继电器存在的许多缺陷．在实现方式上，采用集成电路与单片微机系统相结合的混合式方案，能同时发挥集成电路保护和微机保护的各自优点，使保护性能更加趋于完善．文章着重介绍保护的构成特点、测量元件的工作原理、装置的软硬件结构和实验结果．

A Set of distance protection With new features is introduced in this paper .This protection uses new type of destance relays as its measuring unit,which can overcome some of the shortcomings existing in traditinnal distance relays .In realizing method, adopting the mixing scheme combining I.C. with single chip microcomputcr system can simultaneously take advantages of both I.C. protection and microcomputer protection, and finally make the porotective property more perfect. This paper mainly discusses the characters on proteetive constitution, operational principle of the measuring unit,structures of both software and hardware and experimental results.