纵联差动保护 longitudinal differential protection ; tandem differential protection ; pilot differential protection

差动保护继电器 differential protection relay

差动保护回路 Differental protective circuit

变压器差动保护 transformer differential protection ; differential action of transformer ; Transformer Differential Relay

比率差动保护 Percentage differential protection

横差动保护 transversal differential protection

比率差动保护装置 percentage differential protection

高阻抗母线差动保护 High impedance busbar differetial protection

微机差动保护 microcomputer differential current protection ; micromachine differential-protection