基于DCD-2型继电器构成的变压器纵差保护设计

Longitudinal Differential Protection Design of Transformer Formed Based on DCD-2 Typer Relay

变压器励磁涌流中含有大量的非周期分量,采用带加强型速饱和变流器的差动继电器,能更有效地躲过励磁涌流。基于分析DCD-2型继电器作用和工作原理,进行了变压器的纵差保护的整定设计。

Transformer longitudinal differential protection is the main protection of transformer. Contain non periodic components of a lot of transformer magnetizing inrush current, With enhanced velocity saturation differential relay con- verter, can effectively avoid the inrush current. The design analysis of DCD-2 typerelay function and working principle are based on, setting calculation of transformer differential protection.