摘要
Abstract
The article mainly analyzes the realization cond-ition of the elevator energy ef iciency in our country recently, add to this,it introduces the design principle of the active energy feedback device. Also,through the concrete analysis and testing,it proves that Active energy feedback device take effect in The elevator energy-saving renovation.关键词
电梯节能/应用/分析Key words
elevator energy-saving/application/analysis
