The Emerging Electrical Markets for Copper
Figure 118: IE Efficiency Classes for 50 Hz 4-Pole Motors
Download 10.26 Mb.
|
Figure 118: IE Efficiency Classes for 50 Hz 4-Pole Motors 
The United States and a few other countries have already introduced legislation requiring IE2 standard motors in certain applications. Many others have plans to introduce such rules. In Europe, IE2 will become the obligatory standard from 2011. For some motors, this is also true of China in 2011, although for other motors a minimum IE1 standard will be introduced in that year replacing earlier, less rigorous, requirements. While the focus is on motors alone, some international standardisation is being attempted for complete motor driven systems where sold as an integrated unit through a process of classification and labelling. For fan systems, for example, there are at present several different efficiency test standards in the European Union. A single, widely accepted standard would, of course, be better. For smaller water circulation pumps a definition of general efficiency levels is still lacking. One problem is that the tolerances of published pump data are currently too large to be easily classified. Once a consensus regarding the classification of the efficiency of motor driven systems is achieved, manufacturers and users can then move to create a labelling scheme. With time, legislation on standards may follow. For the present, though, legislation-based installation of higher efficiency motors will be limited to stand alone motors. Directory: wordpress -> wp-content -> uploads -> 2017 uploads -> Professor rona s beattie and dr david bamaung glasgow caledonian university email for corresponding author uploads -> Best Offensive Players: qb #19 keenan reynolds, N, ’16. Lg #57 E. K. Binns, N, ’16 uploads -> Smart Supervision Research Partner Orientation Course fy13 and fy14 Grantees September 29- october 1, 2015/San Antonio, tx uploads -> Autonomous Control for a Reliable Internet of Services (across) 2017 -> 6 Thai Market Analysis 2017 -> Birchwood intermediate school 2017 -> Operation corporate 2017 -> This document is written for the amateur radio operator that will be using the PiGate as an emergency communications device in a disaster situation Download 10.26 Mb. Share with your friends:
|