变压器差动保护双重化原理配置的讨论

Discussing the double configuration of differential protection for transformer

变压器保护采用双主双后配置后,不同原理的差动保护应该是如何解决差动保护的速动性和灵敏性的问题,而不是采用不同原理识别励磁涌流的问题,两台装置的差动保护的配置应该完全一样,每台装置中配置不同原理的差动保护和相同原理差动保护的不同动作特性来解决差动保护的灵敏性和速动性。

Differential protection of transformer must lay emphasis on how to handle the sensitivity and speed after configuring diverse principle based differential protection, rather than adopting different schemes to detect the inrush current. Both devices should have the same protection configuraion with diverse principle based differential protection or diverse operation characteristic for the same differential protection in order to handle the relationship between sensitivity and speed of differential protection.