【摘要】 通过对比率制动式变压器差动保护整定计算和大型变压器励磁电流的分析,提出变压器的比率制动式差动保护与过励磁保护的配合问题,为防止过励磁引起比率制动式差动保护的动作,在其整定计算中应考虑过励磁。更多还原

【Abstract】 Through setting calculation to differential protection of ratio brake transformer and analyzing excitation current of large scale transformer, This paper proposes coordination problem of ratio brake differential protection and overexcitation protection for transformer, We should consider overexcitation in setting calculation in order to prevent overexcitation causing ratio brake differentoal protection operating.更多还原