Posted to News on 6th Jul 2020, 09:41
Water-cooled large AC motors: more power, less maintenance
New from ABB are the AXW 315 and 400 IEC water-cooled AC motors, said by the company to deliver an average of 40 per cent more power over conventional fan-cooled designs, and to provide extended insulation and bearing life. ABB also states that its AXW 315 and 400 IEC water-cooled motors also offer more watts per kilogram than conventional totally enclosed fan-cooled (TEFC) motors, making them smaller and lighter but just as powerful. The motors' smaller footprint also allows for compact installations where space is limited.
The new cooling configuration features a water jacket construction combined with an internal air-cooling loop for better heat distribution and dissipation. This prevents thermal hot spots and keeps internal temperatures more balanced, thus delivering longer bearing and insulation life. Charles Blankenship, Large AC Motor Product Manager, ABB says: "Water-cooling is a highly efficient method of transferring heat away from the motor without the need for an external fan". The main terminal box and auxiliary box can be mounted in several positions to ensure straightforward installation and maintenance. This also means fewer spares are needed, providing a cost saving. The rigid frame design increases stability so that the motor has very low vibrations and can meet stringent vibration limit specifications.
The new AXW water-cooled large AC motors are also available for the above NEMA market with the AXW 5000 and 5800. Visit www.abb.co.uk for further information.
ABB Automation Technologies (Drives and Motors)
3100 Daresbury Park
Daresbury
WA4 4BY
UNITED KINGDOM
44 1925 741 111
