Electric motors - Energy efficiency reference guide for,
Motor efficiency is very important and is emphasized in this guide. Lifetime energy costs for high usage motors will exceed the original purchase price many times over. For some motors, the small incremental cost to buy a more energy efficient motor is easily justified. Using simple decision tools, the reader will learn how to decide whether it is better to replace rather than repair a failed motor.Electric motors | European Commission,Motors This Energy-Efficient Electric Motor Selection Hand-book (Handbook) contains guidelines to help you iden-tify motors that are candidates for replacement with energy-efficient electric motors. Using readily avail-able information such as motor nameplate capacity, op-erating hours, and electricity price you can quicklyPREMIUM EFFICIENCY MOTOR SELECTION AND APPLICATION,The Premium Efficiency Motor Selection and Application Guideand its companion publication, Continuous Energy Improvement in Motor-Driven Systems, have been developed by the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) with support from the Copper Development Association (CDA).Energy efficiency in electric motors | Umweltbundesamt,31/07/2009· The next phase to increase the energy efficiency of electric motors will occur in January 2015, whereupon only IE2 efficiency level electric motors with variable speed drive and a performance range between 7.5 kW and 375 kW may be put on the market. The exception is that they comply with the (higher) premium efficiency level IE3. As of January 2017 the regulation will also apply to electric,Buying an Energy-Efficient Electric Motor,ELECTRIC MOTOR Efficiency is an important factor to consider when buying or rewinding an electric motor. This fact sheet shows you how to obtain the most efficient motor at the lowest price and avoid common problems. It answers the following frequently asked questions: 1. Why is improving motor efficiency important? 2. What is an energy-efficient motor? 3. What efficiency values should I use when comparing motors?2. ELECTRIC MOTORS - Bureau of Energy Efficiency,Electric Motors Bureau of Energy Efficiency 31 2.5 Motor Selection The primary technical consideration defining the motor choice for any particular application is the torque required by the load, especially the relationship between the maximum torque gen-erated by the motor (break-down torque) and the torque requirements for start-up (locked rotor torque) and during acceleration periods. The,
Energy efficient electric motor selection handbook | EEP
Energy efficient electric motor selection handbook (photo credit: northwestmotor) As the rotating magnetic field cuts the conductor bars at a higher rate, the current in the bars increases, which makes it possible for the motor to withstand the higher loading. Motors with slip greater than 5 percent are specified for high inertia and high torque applications. NEMA Design B motors deliver a,Table of Contents - Europa,This guide will help understand the implications that recent legislation and requirements have brought to electric motor´s manufacturers and suppliers, and how to comply with them towards a more energy efficient European market. 3 Improving the Penetration of Energy- Efficient Motors and Drives, SAVE, 2000 Barriers Against Energy-Efficient Motor Repair, SAVE, 1999 VSD’s for Electric Motor,Energy Conservation Standards for Small Electric Motors,09/04/2019· Consistent with this analytical approach, DOE tentatively plans to consider the current minimum energy conservation standards for small electric motors (which were required for compliance starting on March 9, 2015 and, for small electric motors requiring listing or certification by a nationally recognized safety testing laboratory, on March 9, 2017) to establish the baseline efficiency levels,How to Ensure Greater Efficiency with Electric Motors,Before getting into the efficiency of electric motors, it is important to understand more about the common motors used in industries. A simple DC motor converts direct-current electrical energy into mechanical energy. It typically comes equipped with a high number of coils, which make it efficient. However, it can still result in a lot of wasted energy due to the friction between the,8 Energy-Efficiency Improvement Opportunities In,8 Energy-Efficiency Improvement Opportunities In Electric Motors (on photo: Motor with pump industry in factory; credit: mawdsleysber.co.uk) In the following, considerations with respect to energy use and energy saving opportunities for a motor system are presented and inMotor Systems | Department of Energy,Premium Efficiency Motor Selection and Application Guide – A Handbook for Industry. Continuous Energy Improvement in Motor Driven Systems – A Guidebook for Industry. Buying an Energy-Efficient Electric Motor. Energy Management for Motor-Driven Systems. Optimizing Your Motor-Driven System. Pulp and Paper Mills: Profiting from Efficient Motor,
Electric Motors | Energy Rating
Electric motors are used in a wide range of applications, from large industrial equipment such as in mining operations, down to small household appliances like hair dryers. The majority of electric motors draw less than 0.75 kW of power and are used in the residential and commercial sectors, for example inside refrigerators and computer hard drives. They account for only a small proportion of,Motor Efficiency, Selection and Management,Paciic Gas and Electric Company . Kef1@pge . 415-973-2380 . 245 Market Street . San Francisco, CA 94105 . Robert Hart . Industrial Program Manager— Motors & Motor Systems Committee . Consortium for Energy Eficiency . [email protected] 617-337-9273 . 98 North Washington Street, Suite 101 . Boston, MA 02114 . [email protected] . Kef1@pge . Motr oEficfieny,Energy Efficiency and Cost Saving Opportunities for,,The ENERGY STAR Ammonia and Nitrogenous Fertilizer Guide i Energy Efficiency and Cost Saving Opportunities for Ammonia and Nitrogenous Fertilizer Production An ENERGY STAR ® Guide for Energy and Plant Managers Katerina Kermeli, Utrecht University . Ernst Worrell, Utrecht University . Wina Graus, Utrecht University . Mariëlle Corsten, Utrecht University . March 2017 . Disclaimer . This guide,2. ELECTRIC MOTORS - Bureau of Energy Efficiency,Electric Motors Bureau of Energy Efficiency 31 2.5 Motor Selection The primary technical consideration defining the motor choice for any particular application is the torque required by the load, especially the relationship between the maximum torque gen-erated by the motor (break-down torque) and the torque requirements for start-up (locked rotor torque) and during acceleration periods. The,Table of Contents - Europa,This guide will help understand the implications that recent legislation and requirements have brought to electric motor´s manufacturers and suppliers, and how to comply with them towards a more energy efficient European market. 3 Improving the Penetration of Energy- Efficient Motors and Drives, SAVE, 2000 Barriers Against Energy-Efficient Motor Repair, SAVE, 1999 VSD’s for Electric Motor,Chapter 4 EFFICIENCY OF ENERGY CONVERSION,Therefore, the efficiency of this electric motor is: E = MechanicalÊenergyÊ(power)Êoutput ÊElectricÊenergyÊ(power)Êinput = = 90ÊW 100ÊW = 90Ê J s 100Ê J s = 90ÊJ 100ÊJ = 0.9 = 90% Furnace Chemical energy (input) Thermal energy (output) FIGURE 4-3. Energy conversion in a furnace (chemical-to-thermal). Illustrations 4-1 and 4-2, while very simple, should be studied carefully. They,
EU MEPS | ABB
EU MEPS (European Minimum Energy Performance Standard) sets mandatory minimum efficiency levels for electric motors introduced into the European markets. The third and final stage of EU MEPS - in force from January 1, 2017 - makes IE3 the minimum efficiency class for most single speed three-phase induction motors that are used direct online. IE2 motors can still be introduced to the marketReport on International Efficiency Efficiency Classes for,,energy efficiency of motors. It is a voluntary agreement between the electrical motor manufacturers and the European Commission. However, the agreement expired on 16 June 2011. CEMEP’s EFF has been adopted in Europe and some other countries around the world. In order to harmonize the standards describing motor energy efficiency, the International Electrotechnical Commission (IEC) has,Motors and variable speed drives | energy.gov.au,NSW Environment, Energy and Science Financing more efficient motor fitted with variable speed drives.. Victorian Energy Saver Variable speed drives on fans and pumps. Read more. Adjustable Speed Drive Part-Load Efficiency Guide (PDF 485KB) US Department of Energy. Electric motors efficiency regulations Energy RatingIE3-IE4 motors: selecting the right control and protection,,15/11/2018· Premium-efficiency motor current load. IE3 premium motors are more energy efficient than IE2 motors. IE3 motors have higher inrush and starting currents but, in full run, will have a lower current consumption than IE2. Fig. 3 is a simplified version of Fig. 4 made after some measurement on physical motors in a laboratory.Energy Efficiency Improvement and Cost Saving,,This Energy Guide discusses energy efficiency practices and energy-efficient technologies that can be implemented at the component, process, facility, and organizational levels. This Energy Guide begins with an overview of the trends, structure, and energy consumption characteristics of the U.S. pulp and paper industry, along with descriptions of the major process technologies used within the,Energy Efficiency and Cost Saving Opportunities for,,The ENERGY STAR Ammonia and Nitrogenous Fertilizer Guide i Energy Efficiency and Cost Saving Opportunities for Ammonia and Nitrogenous Fertilizer Production An ENERGY STAR ® Guide for Energy and Plant Managers Katerina Kermeli, Utrecht University . Ernst Worrell, Utrecht University . Wina Graus, Utrecht University . Mariëlle Corsten, Utrecht University . March 2017 . Disclaimer . This guide,
Industrial Energy Audit Guidebook: Guidelines for,
Various studies in different countries have shown that significant energy-efficiency improvement opportunities exist in the industrial sector, many of which are cost-effective. These energy-efficiency options include both -cutting as well as sectorcross -specific measures. However, industrial plants are not always aware of energy-efficiency improvement potentials. Conducting an energy audit is,,,,,,
