Rapid Measurement Method of Transition Resistance in Rail Transit Under Impulse Voltage Excitation
The transition resistance of the rail to the discharge network is the most important factor affecting the stray current.In order to quickly measure the transition resistance,based on the fast Fourier transform and the wave process in the rail,a new measurement method using the impulse voltage source is proposed.Firstly,based on ATP-EMTP software,the rail model is constructed for simulation to verify the validity of the inrush method,and then combined with the field measurement of the transition resistance of the rail to the discharge network,the reliability and accuracy of the impulse method is further verified.
rail transitfast Fourier transformimpulse votagetransition resistorsATP-EMTP softwarestray current