Induction Motors feature liquid cooled design.
Press Release Summary:
Available in 315–500 mm frame sizes, IMfinity® LC Series is rated 400 V for 315–450 mm sizes and 690 V for 500 mm size. Motors range from 150–1,500 kW with frequency of 50/60 Hz. Use of water circulation over frame housing for cooling maintains thermal efficiency and enables use with variable speed drive for heavy-duty applications that require constant torque. Offered with optional IP56 or IP65 protection, LC Series is fitted with water leakage detector to control water circuit reliability.
Original Press Release:
IMfinity® Liquid Cooled Motors: LC Range
The IMfinity® induction motor range developed by Leroy-Somer has now expanded with the Liquid Cooled (LC) series. Designed to withstand harsh environments and meet specific requirements, the LC motor range is a step forward to satisfy the most demanding customer expectations in terms of high reliability, energy savings and ease of integration into their facilities.A design that enhances performance
Based on the success and reliability of the IMfinity platform, the LC motors achieve the highest electrical and mechanical performance, including some innovative characteristics:
• The latest generation frame housing, with cast iron or steel flanges for DE and NDE bearings, allowing excellent heat dissipation
• A sophisticated cooling system which maintains the thermal efficiency, enabling the motor to be used together with a variable speed drive, for heavy duty applications that require constant torque
• Reduced noise level, decreased in average by -10 to -20 dB (A) compared to air-cooled motors due to the lack of fan, offering ultimate comfort
• Improved modularity thanks to its fabricated steel design, providing higher flexibility for retrofit installation
The liquid cooling system of LC motors, provided by water circulation over the frame housing, offers additional significant advantages, such as the power-weight ratio (increased power in the same motor frame size) and compactness (saving up to 25% of volume compared to an air-cooled motor for easier and less costly integration within a machine or a system. Moreover, LC technology makes it possible to eliminate external components, such as ventilation equipment.
A design that optimizes energy efficiency
Based on the new IMfinity® induction motor range, the LC series has been designed to achieve the efficiency levels defined in IEC 60034-30-1. As standard, LC motors are IE3 Premium from 150 to 1500 kW.
Perfectly suited for use in variable speed, the LC motor has been designed to integrate specific features as standard, such as a thermal reserve for maintaining the rated torque over an extended speed range. In order to meet particular requirements, options can be provided upon request, including reinforced winding insulation and insulated bearings. The motor can also be equipped with an encoder for applications that require precise positioning.
Variable speed can generate immediate operating profits, such as up to 50% energy savings (depending on the application and operating conditions) or increased productivity as a result of improving the process and reducing machine downtime. The return on investment is consequently extremely quick.Â
A design giving priority to safety and reliability
Benefitting from optional IP56 or IP65 protection to safeguard against external hazards, the LC range is fitted with a water leakage detector to control the water circuit reliability.
Another option, space heaters, ensure safety during motor start-up, while winding and endshield thermal protection control and monitor the motor temperature.
A design facilitating maintenance
Developed to reduce operating costs without compromising industry needs, LC motors are equipped with a patented breathable membrane. This completely waterproof (IP 66 minimum) feature considerably reduces condensates, whose evacuation is achieved by drain plugs.
The Liquid-Cooled technology ensures a clean surrounding environment, as there is no pollution associated with airflow. Moreover, there is no impact on ambient temperature, as the waste heat from the motor is carried away by the cooling circulation. For these reasons, the risk of installation ageing and malfunctioning .due to air pollution and high temperatures is considerably lowered.
This reliability ensures easy maintenance of the motor within customer systems.
An easy-to-select and easy-to-install solution, the new LC motors are particularly recommended for plastics & rubber, test stands, industrial refrigeration, marine and nuclear applications, and crushers for the food and animal feed industry.
Key features:
- Frame sizes: 315 to 500 (< 315 and > 500 on request)
- Voltage: 400 V for 315 to 450 mm / 690V for 500 mm
- Number of poles: 2, 4 & 6
- Power: 150 to 1,500 kW
- Frequency: 50 or 60 Hz
- Insulation class: F or H
- Mounting: B3, B35 and V1 (other position on request)
- Double nameplate: DOL + variable speed characteristics
About Control Techniques and Leroy-Somer:
As part of Emerson Industrial Automation, Control Techniques and Leroy-Somer have operated globally as sister companies for many years, each with their individual areas of expertise and specialist technologies. Now our combined business allows us to provide optimized drive and motor technology, develop perfect industry-specific and customized automation solutions, with strong local technical and sales support on a global scale.
For more information visit www.EmersonIndustrial.com/Automation
About Emerson Industrial Automation:
Emerson Industrial Automation, a business of Emerson, is a global technology provider that enables productivity, efficiency and quality gains for customers across a spectrum of industries. Our products include alternators, electric motors and drives, electrical distribution devices and mechanical power transmission, fluid automation and ultrasonic joining solutions. Emerson brands include Appleton, ASCO, Branson Ultrasonics, Browning, Control Techniques, Kop-Flex, Leroy-Somer, McGill, Morse, Numatics, O-Z/Gedney, Rollway, SealMaster and System Plast.
For more information, visit www.EmersonIndustrialAutomation.com.
About Emerson:
Emerson (NYSE: EMR), based in St. Louis, Missouri (USA), is a global leader in bringing technology and engineering together to provide innovative solutions for customers in industrial, commercial, and consumer markets around the world. The company is comprised of five business segments: Process Management, Industrial Automation, Network Power, Climate Technologies, and Commercial & Residential Solutions. Sales in fiscal 2015 were $22.3 billion.Â
For more information, visit www.Emerson.com.
EMERSON INDUSTRIAL AUTOMATION
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MN 55344-3505
Rob Kelly
Phone: +1 952 995 8173
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rob.kelly@emerson.com
