比率差动保装置  bias differential protective system

浮动比率差动保护  floating ratio differential protection

比率差动保护  differential protection; rate differential protection; ratio differential protection; percentage differential protection

变压器比率差动保护  transformer ratio-differential protection

母差复式比率差动保护  bus differential complex percentage differential protection

偏置式比率差动保护  biased percentage differential protection

SEL-587比率差动  SEL-587 percentage restrained differential

比率差动  ratio differential; ratio differentialprotection; percentage differential protection; differential protection; percentage differential; ratio differential protection; ratio-differential; differential relay

比率差动继电器  ratio differential relay

比率差动继动器  ratio differential relay

动差比率  moment ratios

感应圆盘式比率差动继电器  induction disc type ratio differential relay

双比率差动算法  dual slope differential algorithm

功率差动保护  power differential protection

有功功率差动保护  167dtex

有功功率差动保护原理  the power differential protection principle

变压器偏置差动保护  biased differential transformer protection

差动装置  Differential; differential gear; Differential attachment; compensator; differential mechanism; differentiator; differential device

差动装置锁  differential gear; differential lock

赫氏钻头给进差动装置  Hild differential drive