Impedance transformer is an important equipment of track circuit. Appropriate selection of its capacity not only has a significant influence on the reliable operation of the signal system under high-voltage interference but also affects the safety of the facility and the cost of the program. Analysis of the distribution of traction return current can provide reference data for the allocation of impedance transformer capacity. This paper adopts multi-conductor transmission line model, and according to the structural characteristics of autotransformer (AT) traction power supply system, the distribution characteristics of traction return of passenger dedicated line is shown, and then, it proposes rational allocation of the impedance transformer capacity under the design of track circuits and transverse connections.
The Allocation of the Impedance Transformer Capacity of Passenger Dedicated Lines
2014
8 Seiten
Conference paper
English
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