Track circuit primary parameter measuring method

Abstract

This invention provides a rail circuit one parameter measurement method, which is the following: to adopt twice short circuit method and to locate short circuit at the L and 2L distance to the measurement ends both sides and to measure three voltage value U#-[AB], U#-[CD], U#-[EF] and U#-[AB]', U#-[CD]', U#-[EF]'from the measurement ends; to calculate the input resistance Z#-[in1], Z#-[in2] and calculate the steel rail resistance of each unit Z#-[0] and the leakage admittance Y#-[0] of each unit length; then to calculate the rail circuit once parameter according to Z#-[0]=R#-[0]+jOmegaL#-[0]Y#-[0]=G#-[0]+jOmegaC#-[0].

Description

technical field The invention relates to a method for measuring primary parameters of a track circuit, which is used for the simulation calculation of the audio track circuit, and makes judgments on the states of the audio track circuit under various actual use conditions: adjustment state, branching state, and broken track state, and makes a judgment on the state of the audio track circuit The division of track circuit sections (for example, it can be used for engineering design), the adjustment of working status (for example, it can be used for on-site equipment maintenance), etc. Background technique At present, the audio non-insulated track circuit has occupied an important position in the signal system. For engineering design, equipment development, daily maintenance and other work, the simulation of the audio track circuit has great significance. In order to carry out the simulation calculation of the audio track circuit, one of the prerequisites is based on an accura...

AI Technical Summary

Problems solved by technology

The primary parameter measurement method of the track circuit generally adopts the secondary short-circuit method in the world. There have been special test instruments, but the price is relatively expensive, and a double-trace oscilloscope must be equipped, which is not conducive to the promotion and application of the domestic railway field.

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