大型电动机高阻抗差动保护原理、整定及应用李德佳（核电秦山联营有限公司 浙江省海盐县 ）The principle, setting and application of high impedance differential protection in large motorLI De-jia( Nuclear Power QINSHAN Join Venture CO.,LTD Zhejiang Haiyan,China )Abstract:This paper expatiated the principle, setting and application of high impedance differential protection in large motor with whole solid setting example.The influence of CT ratio error to high impedance differential protection is analyzed, and the
