殷志勇, 刘国辉. Application of Current Differential Protection in High Voltage Frequency Converter[J]. 2012, (4): 88-92.DOI:
差动保护在高压变频器中的应用
摘要
以工程实例
介绍了在大容量电机加装了高压变频器后如何实现差动保护的正常应用。通过差动保护原理
变频电流互感器的应用和微机差动保护装置原理等方面上逐一论证了差动保护在变频系统中应用的可行性
并结合新昌电厂的案例提出了具体的工程解决方案。
Abstract
Realization of differential protection was introduced in the large capacity motor with high voltage frequency converter.The principle of the differential protection
current transformer for frequency conversion and microcomputer differential protection device were introduced.Then feasibility of the differential protection in variable frequency system was proved.And the article put forward some specific engineering solutions.