Dynamic simulation testing of transformer protection based on ADPSS

This paper presents a dynamic simulation test method of transformer protection based on Advanced Digital Power System Simulator, ADPSS. Firstly, a simulation model of three-phase three-winding transformer has been proposed in ETSDAC, a commercial electromagnetic transient simulation program. Then, according to the Chinese national standard rules, 3 modeling schemes of dynamic simulation, including inter- turn short circuit, internal metal fault of differential protection, and recovery inrush, have been designed to simulate the running situations of the transformer under various conditions. The simulation results show that the proposed method has an important referential significance for the failure analysis of transformer.