Abstract:

The design characteristics of VX connection traction transformer are introduced.The Node admittance matrix of the VX connection traction transformer with the capacity of the Secondary side different are deduced.The influence of negative sequence of the system with the ratio of secondary side capacity change are analyzed and calculated separately and the general rules are Summed up by analyzing and summarizing the results.

Key words: VX connection, unequal capacity, node admittance matrix, negative sequence