In practical application,turnouts equipped with DC time-limited protection devices often fail to be operated successfully once,and return to normal after multiple operations,with unknown reasons,causing great trouble to on-site maintenance management and driving safety.This paper conducts an in-depth analysis of the difficult issues in the application of DC time-limited protection,and proposes two improvement schemes:increasing the spacing between relay contacts and connecting the resistance and capacitance components in parallel to the control relay contacts inside the DC time-limited protection device,so as to improve the safety and stability of the DC time-limited protection device.
DC time-limited protection deviceapplication analysisimprovement plan
国家科技期刊平台
NSTL
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