Compliant motor solutions for your applications

New compulsory European motor efficiency standards come into force on January 1st 2017, will your equipment/machinery comply? Motor specialists on our stand (D380) will be there to explain the implications and requirements of the new standards and advise on appropriate solutions for your specific needs to match your applications. Lafert’s solutions can be based upon an IE2 compliant AC motor with an appropriate drive, a DOL-suitable IE3 motor or our IE4/IE5 Super Premium Efficient permanent magnet motors which offer up to 50% weight savings and power outputs up to 400% greater than a standard equivalent frame size. Our product range includes high performance permanent magnet motors, AC motors, brake motors, stainless steel AC motors, brushless servo and torque motors, gearless permanent magnet lift motors and power electronics. All motors are offered with options for non-standard configurations of shafts, flanges and windings. See us at: Drives & Controls Show – Stand...

New large explosion-proof W22X motors with high efficiency

WEG, a leading global manufacturer of drive technology, has added a larger IEC 800 frame size model to its energy-efficient W22X series of explosion-proof motors to meet the needs of the most demanding energy-intensive applications, for example in the oil and gas industry. Designed for medium-voltage and high-voltage applications, the new frame size motors deliver excellent performance with an efficiency of up to 97.4% and ensure low maintenance and operating costs, making them ideal for applications where harsh environmental conditions demand high reliability and robustness without compromising on energy efficiency. One reason for the motor’s high efficiency is its innovative stainless steel tubular cooling system (IEC 60034-6 IC511) which provides optimal air flow and delivers maximum cooling capacity in the stator, rotor, and critical components such as bearings. Additionally, aerodynamically designed fans and fan covers help produce effective air flow with the lowest possible noise level. Hot spots are also avoided by ensuring uniform temperature distribution in the entire frame, therefore providing reliable, high performance over a long service life. The W22X 800 motors offer ultimate flexibility to the user as they are available with many mounting options including an IM B3 mounting as standard together with various mounting assembly/terminal box arrangements and a flex-resistant welded steel frame with IP55 protection rating and large integrated mounting feet. The robust housing allows the explosion-proof motors to be used in the most demanding applications while minimising vibration and noise emissions. The W22X 800 motor is available as 2, 4, 6 and 8 pole versions with alternative speeds available on request, and is rated from 2 to 5.6 MW with supply voltage from 6.6 to...
How efficient are your motors… really?

How efficient are your motors… really?

Around the world, legislation relating to electric motor efficiency is tightening in an attempt to reduce carbon emissions and damage to the environment. However, far less attention is paid to some of the practicalities. Here, Lucie Hodkova of Exico looks at how best to determine the efficiency of an installed motor. Motors are the greatest consumers of electricity in the world, with about 70% of all power generated being used by them. Since the Rio Earth Summit a generation ago, there has been a continuous effort to improve motor efficiency, with much effort being put into drafting efficiency standards and new testing methods for newly manufactured motors, which get gradually tighter over the years. However, this approach misses the point that there is a huge number of motors already in use around the world and their efficiency does not come under anything like so much scrutiny. So, a review of the motors in your place of work may well lead to the identification of significant improvements to your energy efficiency, carbon footprint and – perhaps most importantly – saving on your utilities bill. If you use machine tools, automated manufacturing systems, conveyors, or other ‘technical’ equipment, each of these is likely to use a number of motors. If you have air-conditioned offices, there will be motors driving pumps and fans. Medical equipment, displays, test stands, lifts, escalators, extractor fans in kitchens and laboratories are all motor-driven and, typically, their efficiency may never have been checked! All motors should have their efficiency checked and it may be best to start with those motors that are used a lot; if a...

Bauer delivers substantial energy savings

Production processes that run 24/7 need reliable and energy efficient drive systems to maintain a cost effective process. For one pharmaceutical manufacturer the drive for efficiency led it to replace some existing equipment with the latest IE4 electric motor technology from Bauer Gear Motor; reducing the kW power size by 60% whilst also reducing the weight and improving overall drive efficiency. Fresenius Kabi Austria is a subsidiary of the international healthcare group Fresenius Kabi and its plant in Linz manufactures active pharmaceutical ingredients (API), such as Lactulose, Hydroxyethyl Starch (HES) and Sinistrin, and houses a pharmaceutical production unit for related finished products. The production of Lactulose API operates 24 hours a day, seven days a week with an order-related and just-in-time production system that safeguards the delivery of API to its customers with a maximum shelf life. A significant part of the production process involves the product being held in large vats that are continuously stirred by agitators, driven by electric motors. A need for improved efficiency It was this process, amongst others, that was under scrutiny in terms of energy efficiency as well as process efficiency. Fresenius Kabi approached Bauer with a request for support in investigating a more efficient drive system. At the same time they wanted to engineer in flexibility that would ensure the solution would continue to perform when some of the process specifications were changed as well. The initial step was to carry out an assessment of the existing equipment which comprised an IE2 (2-pole) direct on line (DOL) asynchronous geared motor (ASM) rated at 18.5 kW with a stated efficiency of 91.2%. This...

Schaeffler and KIT research new assisted steering system for electric vehicles

A collaborative project between automotive engine component and system supplier Schaeffler and the Karlsruhe Institute for Technology (KIT), Germany, is researching new technologies for improving the energy efficiency of assisted steering systems on electric vehicles. In conventional vehicles, the internal combustion engine not only accelerates the car but also supplies power to on-board assist systems, including the assisted steering system, which reduces the strain on the driver at the wheel. In electric vehicles, this energy comes from the battery, which as a result also reduces the vehicle’s traveling range. Set up in January 2015 and funded by the Federal Ministry for Education and Research (BMBF) to the value of approx. 600,000 euros over three years, the focus of the ‘Intelligent Assisted Steering System with Optimum Energy Efficiency for Electric Vehicles (e²-Lenk)’ project is to improve the energy efficiency of steering systems by intelligently controlling the drive torque transmitted to each of the four wheels of the vehicle. As project managers Dr. Marcel Mayer of Schaeffler and Dr. Michael Frey of KIT explain: “The new assisted steering system would require fewer system components in an electric vehicle, which would mean savings in terms of weight and energy. This, in turn, would mean that an electric car would be cheaper and have a greater traveling range.” Due to the optimised design and weight reduction of the vehicle, savings would also be made in terms of reduced materials and vehicle production costs. The basic idea of the e²-Lenk project is simple: the wheels in an electric car would be driven individually by electric motors, unlike a car with an internal combustion engine,...
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The one leading voice for the Fluid & Power Transmission Industry - Saturday, December 16th 2017
****ISSUE 81 - DEADLINE DATES - EDITORIAL & PICS 10/11 - ADVERTISING A/W 17/11 -PUBLICATION DATE W/C 13/12****