Vector Magnetic Characteristic Technology for Developing High Efficiency Machines in Oita National Project

Abstract:

In this paper we will discuss about the development of IE4 level motor proposed by IEC, which is new target for international efficiencies. Efficiency classes IE1-IE4 are defined in international standard IEC 60034-30. The draft version of IEC 60034-31 defines the new class IE4. The IE-codes replaces the former voluntary Eff classification of electric motors as shown in Table 1. The Eff classes are based on a voluntary agreement between the EU and the CEMEP in 1998.Table 1 Minimum energy performance standards for electric motors.

• Periodical: Materials Science Forum (Volume 792)
• Pages: 207-214
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.792.207
• Online since: August 2014
• Authors: Masato Enokizono
• Keywords: High Efficiency Motor, High-Density, Iron Loss, Stress Effect, Vector Magnetic Property

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