CRH380BL高速动车组受电弓自动降弓系统

摘要

This paper introduces the control principle of pantograph and the working principle of automatic dropping device system by analyzing the pantograph rising process and the pressure regulation process of air big while the train speed varying ,summarizes all kinds of situations that cause an automatic dropping of pantograph .%通过分析受电弓升弓过程和列车速度变化时气囊压力的调节过程，介绍受电弓电气、气动控制原理及自动降弓系统的工作原理，并概括受电弓发生自动降弓的各种情况。