Overview

-Especially applied for the AT power supplying means, simplify the main connection of traction transformer:
-The autotransformer regulator in the exit of substation can be left out, this reduces the line loss and the input of the equipment;
-220KV(110KV) can be reduced directly to 27.5KV,which supplies for the traction engine.
-Transformer capacity can be used fully, and the structure of substation is simple, and the maintenance is convenient.
-Reduce the feed line switch's working voltage,not only save the investment, but also increase the reliability of power supply.
-It is recommended to use when the electric net capacity is large enough and it can be ignored that the single-phase operation influence the power grid