地铁馈线电流增量保护ΔI检出精度与分离方法的研究

On the Δ I Checkout Precision and Separating Measure of Current Increment Protection of Subway Feed Line

本文分析阐明了影响电流增量保护ΔＩ检出精度的主要原因，提出了提高精度的几项有效措施。

Factors which affect the Δ I checkout precision of current increment protection of subway feed lines are analysied and discussed in this paper.To improve the precision, possible effective measures are suggested,and the Δ I separating functions of current increment protection are studied extensively.