As a commonly used standard for railway station track circuits,the safe and reliable operation of 25 Hz phase detecting track circuit is directly related to the safe and efficient operation of the railway network.However,poor shunting is still a typical technical problem in the application process of 25 Hz phase detecting track circuit.Based on a typical case of poor shunting in track circuit that occurred at a certain station,this paper deeply introduces the coping strategies for the problem of poor shunting of a 25 Hz phase detecting track circuit,and designs a variety of optimization and adjustment schemes and carries out comparative analysis.Finally,taking into account the causes of poor shunting and the characteristics of the 25 Hz phase detecting track circuit,practical application suggestions for the solution are given,which provides a necessary reference for solving the problem of poor shunting of the 25 Hz phase detecting track circuit in the field.
loss of shuntingresidual shunt voltage25 Hz phase detecting track circuitcombined adjustmentrail derusting
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